IMS Measuring Sytems in Hot Rolling Mills

A key element of modern steelmaking is the production of hot-rolled strip. About 50% of the steel produced in the hot rolling process is processed into steel strips. Accordingly, not only maximum throughput and high availability are required from the mills, but also products with optimal material properties with exact geometries. For the production of flat products, hot strip rolling is one of the most productive solutions, offering the highest level of production and a wide product mix with excellent quality. Throughout the entire manufacturing process, precise control and regulation mechanisms, in conjunction with a higher-level process computer, ensure compliance with the tightest thickness, width and temperature tolerances over the entire length of the strip. The most important regulating instance within this closed-loop control is a high-precision measuring technology that immediately reports tolerance deviations in the running process to the Automatic Gauge Control (AGC) and Automatic Flatness Control (AFC) and thus has a direct influence on the fully automated readjustment of the rolling stands. Hot rolling mill operators of • continuous casting plants • casting / rolling mills • hot rolling mills • heavy plate and Steckel mills benefit worldwide from the large number of optimally coordinated IMS measuring systems for the precise determination of all relevant measured variables within the entire strip production process such as: • slab dimension • width • crop length • speed • length • thickness • thickness profile • temperature • flatness • 2D / 3D surface inspection • coil state measurement Precision technology that guarantees exact measurement results even under the most adverse environmental conditions such as heat, dirt and moisture and stands out for its impressive service life.

A key element of modern steelmaking is the production of hot-rolled strip. About 50% of the steel produced in the hot rolling process is processed into steel strips. Accordingly, not only maximum throughput and high availability are required from the mills, but also products with optimal material properties with exact geometries.
For the production of flat products, hot strip rolling is one of the most productive solutions, offering the highest level of production and a wide product mix with excellent quality.
Throughout the entire manufacturing process, precise control and regulation mechanisms, in conjunction with a higher-level process computer, ensure compliance with the tightest thickness, width and temperature tolerances over the entire length of the strip.
The most important regulating instance within this closed-loop control is a high-precision measuring technology that immediately reports tolerance deviations in the running process to the Automatic Gauge Control (AGC) and Automatic Flatness Control (AFC) and thus has a direct influence on the fully automated readjustment of the rolling stands.
Hot rolling mill operators of
• continuous casting plants
• casting / rolling mills
• hot rolling mills
• heavy plate and Steckel mills

benefit worldwide from the large number of optimally coordinated IMS measuring systems for the precise determination of all relevant measured variables within the entire strip production process such as:
• slab dimension
• width
• crop length
• speed
• length
• thickness
• thickness profile
• temperature
• flatness
• 2D / 3D surface inspection
• coil state measurement

Precision technology that guarantees exact measurement results even under the most adverse environmental conditions such as heat, dirt and moisture and stands out for its impressive service life.


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<strong>IMS</strong> <strong>Measur<strong>in</strong>g</strong> Systems<br />

<strong>Hot</strong> Roll<strong>in</strong>g <strong>Mills</strong>

Precision out of passion,<br />

quality out of conviction and<br />

<strong>in</strong>novation out of tradition<br />

X-ray measur<strong>in</strong>g systems, isotope measur<strong>in</strong>g systems<br />

and optical measur<strong>in</strong>g systems from the world’s<br />

lead<strong>in</strong>g manufacturer <strong>IMS</strong> have been a guarantee for<br />

highest product quality <strong>in</strong> the production and process<strong>in</strong>g<br />

of steel, alum<strong>in</strong>ium and non-ferrous metals s<strong>in</strong>ce<br />

1980.<br />

Our non-contact measur<strong>in</strong>g and detection systems are<br />

used <strong>in</strong> the steel, metal and alum<strong>in</strong>ium <strong>in</strong>dustries wherever<br />

meticulous material test<strong>in</strong>g is required to guarantee<br />

the highest standards of quality – worldwide under<br />

the toughest operat<strong>in</strong>g conditions.<br />

Both <strong>in</strong> hot production, such as cont<strong>in</strong>uous cast<strong>in</strong>g<br />

plants, hot roll<strong>in</strong>g mills and tube mills, where shimmer<strong>in</strong>g<br />

surfaces, heat, dirt and moisture are common, as<br />

well as <strong>in</strong> cold roll<strong>in</strong>g mills and service centres, measur<strong>in</strong>g<br />

systems from <strong>IMS</strong> measure and detect reliably and<br />

with highest precision.<br />

Exactly reproducible measurements and evaluations <strong>in</strong><br />

real time optimise your production l<strong>in</strong>es and <strong>in</strong>crease<br />

product quality while simultaneously reduc<strong>in</strong>g production<br />

costs and reject rates.<br />




Internal Inclusions / Shell Defects<br />

Width (Radar)<br />

Thickness (Radar)<br />



Thickness<br />

Thickness Profile<br />

(Band Edges) Proflie / Wedge<br />

Coat<strong>in</strong>g<br />

Coat<strong>in</strong>g Profile<br />

Tube Thickness<br />

Tube Profile<br />

Phase Content<br />



Thickness<br />

Width<br />

Position<br />

Edge Cracks<br />

Holes<br />

P<strong>in</strong>holes<br />

Shape and Diameter<br />

Evenness / Flatness<br />

Coat<strong>in</strong>g<br />

2D / 3D Surface Inspection<br />



Data Archiv<strong>in</strong>g<br />

Data Analysis<br />

Logg<strong>in</strong>g<br />

Production Track<strong>in</strong>g<br />

Quality Evaluation<br />

Claim Evaluation<br />


Strip- / Web Tension<br />

Shape / Flatness<br />


Coat<strong>in</strong>g<br />

Shape / Flatness AFC

<strong>Hot</strong> Roll<strong>in</strong>g <strong>Mills</strong><br />

Table of Contents<br />

Introduction<br />

<strong>Measur<strong>in</strong>g</strong> Technology <strong>in</strong> the Steel Industry .........................................................................................<br />

Development of new <strong>Measur<strong>in</strong>g</strong> Systems Cont<strong>in</strong>uity at <strong>IMS</strong> ................................................................<br />

Page 6<br />

Page 7<br />

Applications<br />

Heavy Plate Mill .......................................................................................................................................<br />

<strong>Hot</strong> Roll<strong>in</strong>g Mill .......................................................................................................................................<br />

Cont<strong>in</strong>uous Cast<strong>in</strong>g Plant .....................................................................................................................<br />

Steckel Mill .............................................................................................................................................<br />

Page 8-9<br />

Page 10-11<br />

Page 12-13<br />

Page 14-15<br />

System Description<br />

Thickness <strong>Measur<strong>in</strong>g</strong> System ...............................................................................................................<br />

Tw<strong>in</strong> Set Centrel<strong>in</strong>e Thickness & Profile <strong>Measur<strong>in</strong>g</strong> System ...............................................................<br />

Three-Head Profile <strong>Measur<strong>in</strong>g</strong> System ................................................................................................<br />

M<strong>in</strong>iMaster Profile <strong>Measur<strong>in</strong>g</strong> System ..................................................................................................<br />

MultiMaster Profile <strong>Measur<strong>in</strong>g</strong> System .................................................................................................<br />

Width <strong>Measur<strong>in</strong>g</strong> System ......................................................................................................................<br />

TopPlan Strip Flatness <strong>Measur<strong>in</strong>g</strong> System ..........................................................................................<br />

Possible uses of<br />

Isotope and X-ray Radiation .................................................................................................................<br />

Cool<strong>in</strong>g of the <strong>Measur<strong>in</strong>g</strong> Systems .......................................................................................................<br />

Break<strong>in</strong>g Barriers<br />

through Optimisation .............................................................................................................................<br />

Page 16<br />

Page 17<br />

Page 18<br />

Page 19<br />

Page 20<br />

Page 21<br />

Page 22<br />

Page 23<br />

Page 24<br />

Page 25<br />






<strong>Measur<strong>in</strong>g</strong> Technology<br />

<strong>in</strong> the Steel Industry<br />

Development of new <strong>Measur<strong>in</strong>g</strong><br />

Systems Cont<strong>in</strong>uity at <strong>IMS</strong><br />

The steel <strong>in</strong>dustry is a fasc<strong>in</strong>at<strong>in</strong>g world of large material<br />

and energy flows, high temperatures, large tonnages<br />

and high-speed production plants. The steel <strong>in</strong>dustry is<br />

qu<strong>in</strong>tessentially a 24/7 <strong>in</strong>dustry.<br />

Users expect not only excellent process<strong>in</strong>g properties<br />

and usage characteristics, but also high life time, longterm<br />

value and high quality from modern materials. Only<br />

technically superior prod ucts – steel products of maximum<br />

precision – survive the competition <strong>in</strong> the market.<br />

Thanks to constant improvements <strong>in</strong> its strength and<br />

formability, steel can be produced <strong>in</strong> ever smaller<br />

dimensions – and with ever tighter dimensional tolerances.<br />

F<strong>in</strong>ished coat<strong>in</strong>gs on steel strip are becom<strong>in</strong>g<br />

th<strong>in</strong>ner and more effective with ever more complex<br />

layer structures. The strip behaviour and mechanical<br />

dimensions are virtually constant along the complete<br />

length and width of a rolled steel coil.<br />

To meet these high demands, the steel <strong>in</strong>dustry needs<br />

<strong>in</strong>novative, high-precision onl<strong>in</strong>e measur<strong>in</strong>g techniques<br />

with <strong>in</strong>telligent quality management and analysis<br />

systems.<br />

The measur<strong>in</strong>g processes and technologies described<br />

<strong>in</strong> this brochure are, together with optimised process<br />

models, precision control loops and appropriate regulat<strong>in</strong>g<br />

elements, the prime pre-requisites for achiev<strong>in</strong>g the<br />

high level of product quality required from high-speed<br />

cont<strong>in</strong>uous production processes. Maximum availability<br />

and repro ducible measur<strong>in</strong>g results ensure the high process<br />

stability required for cont<strong>in</strong>uous operation.<br />

<strong>IMS</strong> works tirelessly develop<strong>in</strong>g measur<strong>in</strong>g systems for<br />

the improve ment of thickness, profile, width and flatness<br />

<strong>in</strong> roll<strong>in</strong>g mills.<br />

In parallel with technical devel opments for equipment<br />

improvement such as<br />

• hydraulic adjustment<br />

• fast work roll bend<strong>in</strong>g systems<br />

• slide rolls <strong>in</strong> conjunction with mathematical models<br />

for roll force, profile and flatness<br />

<strong>IMS</strong> measur<strong>in</strong>g systems also undergo cont<strong>in</strong>uous<br />

optimisation <strong>in</strong> terms of accuracy, resolution and<br />

dynamic performance.<br />

Output and profitability <strong>in</strong> the production of heavy plate<br />

and hot wide strip depends on, among other factors,<br />

compliance with the prescribed tolerances for thickness,<br />

profile, width and flatness. The ideal is a product with<br />

constant thickness and width, and a constant prescribed<br />

profile along the complete length of the coil – a product<br />

without flatness errors and with m<strong>in</strong>imised residual<br />

stresses.<br />

Today <strong>IMS</strong> can offer multi-function measur<strong>in</strong>g systems<br />

for the cont<strong>in</strong> uous measurement of the follow <strong>in</strong>g<br />

parameters:<br />

• slab dimension<br />

• width<br />

• crop length<br />

• speed<br />

• length<br />

• thickness<br />

• thickness profile<br />

• temperature<br />

• flatness<br />

• 2D / 3D surface <strong>in</strong>spection<br />

• coil state measurement<br />

6<br />






Heavy Plate Roll<strong>in</strong>g <strong>Mills</strong><br />

Example of a typical<br />

configuration of<br />

a heavy plate mill<br />

Slab Dimension (Volume / Weight)<br />

Width (Radar)<br />

Thickness / Thickness Profile<br />

Temperature Centrel<strong>in</strong>e / Profile<br />

Speed / Length<br />

Evenness<br />

3D Surface Inspection<br />

Outl<strong>in</strong>e Contour<br />

Heavy plate, <strong>in</strong> the thickness range 3 – 250 mm, is<br />

currently avail able <strong>in</strong> virtually all alloyed and non-alloyed<br />

steel grades. Highly technical processes such as<br />

normalis<strong>in</strong>g and thermo-mechanical roll<strong>in</strong>g are used not<br />

only to produce sheet steel, with a maximum thickness<br />

of 3 mm, but also heavy plate.<br />

The result is a material whose mechanical-technological<br />

charac teristics are tailored specifically for later use <strong>in</strong><br />

the manufacture of oil rigs, pipel<strong>in</strong>es, bridge gird ers,<br />

excavator shovels, pressure tanks and ships.<br />

Heavy plate must pass commen surately strict quality<br />

tests before be<strong>in</strong>g approved. For all rolled products, the<br />

mechanical prop er ties and dimensions must be kept<br />

constant to the highest degree over the length and cross<br />

section of the product.<br />

The follow<strong>in</strong>g measur<strong>in</strong>g systems are <strong>in</strong>tegrated <strong>in</strong>to<br />

one overall gaug<strong>in</strong>g system <strong>in</strong> this example of a typical<br />

heavy plate mill config uration:<br />

• a thickness measur<strong>in</strong>g system is <strong>in</strong>stalled at the<br />

entry to the mill stand<br />

• after the mill stand a three-head or multi-channel<br />

measur <strong>in</strong>g system is <strong>in</strong>stalled for the mea surement<br />

of thickness, profile, wedge and crown, temperature<br />

and temperature profile, speed and length<br />

• the optical system TopPlan is <strong>in</strong>stalled to measure<br />

flatness, camber and turn-up/turn-down, this system<br />

can be <strong>in</strong>stalled at the entry or exit of the hot<br />

and/or cold leveller<br />

• optical width measurement after the mill stand,<br />

focussed on the end product<br />

• <strong>in</strong> the dress<strong>in</strong>g and straighten <strong>in</strong>g l<strong>in</strong>e the cold plate<br />

dimensions are re-checked for quality control<br />

purposes<br />

Profile and flatness measur<strong>in</strong>g systems are often<br />

<strong>in</strong>stalled <strong>in</strong> comb<strong>in</strong>ation at the mill exit. The thickness<br />

measur<strong>in</strong>g range is usually 2 to 150 mm at widths of up<br />

to 5.5 m and speeds of up to 7 m/s.<br />


Radiometric Optical Laser<br />

Thickness<br />

Crown and<br />

wedges<br />

Heigh value<br />

Ripple<br />

Evenness/<br />

Flatness<br />

Turn-up/down,<br />

head shape<br />

Camber<br />

Width<br />

Temperature<br />

Surface Inspection<br />

Outl<strong>in</strong>e Contour<br />

Slab Dimension<br />

Speed<br />

Length<br />

8<br />






<strong>Hot</strong> Roll<strong>in</strong>g <strong>Mills</strong><br />

Example of a typical<br />

hot roll<strong>in</strong>g mill configuration<br />

Slab Dimension (Volume / Weight)<br />

3D Surface Inspection<br />

Width (Radar)<br />

Crop Length / Width<br />

Speed / Length<br />

Thickness / Thickness Profile<br />

Temperature Centrel<strong>in</strong>e / Profile<br />

Flatness<br />

2D Surface Inspection<br />

Coil W<strong>in</strong>d<strong>in</strong>g Quality<br />

10<br />

<strong>IMS</strong> has been equipp<strong>in</strong>g hot roll<strong>in</strong>g mills with strip profile<br />

measur<strong>in</strong>g systems for more than 40 years. Modern and<br />

revamped mills are now equipped with fourth generation<br />

multi-channel profile measur<strong>in</strong>g systems. X-ray measur<strong>in</strong>g<br />

technology is used exclusively for these measurements.<br />

In addition, optical sys tems are used for the<br />

measurement of position, width, contour and flatness.<br />

Although x-ray measurement has significant advantages<br />

over iso tope measurement, it is restricted to a maximum<br />

strip thickness: isotope measurement still have<br />

their uses. <strong>IMS</strong> has been us<strong>in</strong>g x-ray technology <strong>in</strong> hot<br />

roll<strong>in</strong>g mills s<strong>in</strong>ce 1998.<br />

The follow<strong>in</strong>g <strong>IMS</strong> measur<strong>in</strong>g systems are <strong>in</strong>tegrated<br />

<strong>in</strong>to one gaug<strong>in</strong>g system <strong>in</strong> this example of a typical<br />

hot roll<strong>in</strong>g mill configuration:width measurement at the<br />

rough<strong>in</strong>g mill entry<br />

• isotope profile measurement<br />

at the rough<strong>in</strong>g mill exit<br />

• width and crop length measurement and<br />

optimisation system<br />

• multifunctional measur<strong>in</strong>g sys tem MultiMaster for<br />

the meas ure ment of centre l<strong>in</strong>e thickness, profile,<br />

width and flatness at the f<strong>in</strong>ish<strong>in</strong>g mill exit<br />

• TopPlan flatness measurement at the f<strong>in</strong>ish<strong>in</strong>g l<strong>in</strong>e<br />

• width and flatness measurements at the coiler<br />

• temperature and temperature profile measurements<br />

at the rough<strong>in</strong>g mill, f<strong>in</strong>ish<strong>in</strong>g mill and coiler<br />

The width of the transfer bar is set at the rough<strong>in</strong>g mill.<br />

The <strong>in</strong>put variable for width control is the measured<br />

width with precise determ<strong>in</strong>ation of the transfer bar location.<br />

For control of the crop shear, the head and tail<br />

shapes of the transfer bar are measured dur<strong>in</strong>g the last<br />

pass, and the crop lengths calculated.<br />

Systems for the measurement of width and flatness are<br />

based on optical measur<strong>in</strong>g techniques, while thickness<br />

and profile are measured radiometrically. Isotope measur<strong>in</strong>g<br />

systems are usually located after the rough<strong>in</strong>g mill<br />

and x-ray measur<strong>in</strong>g systems after the f<strong>in</strong>ish<strong>in</strong>g mill.<br />

The configuration shown has backup functions for strip<br />

flatness, strip thickness and strip width. It is therefore<br />

possible to carry out ma<strong>in</strong>tenance work while production<br />

is runn<strong>in</strong>g.<br />

Profile and TopPlan flatness measurements<br />






Cont<strong>in</strong>uous Cast<strong>in</strong>g Plants<br />

Example of a typical<br />

configuration of a<br />

cont<strong>in</strong>uous cast<strong>in</strong>g plant<br />

Slab Dimension (Volume / Weight)<br />

3D Surface Inspection<br />

Width<br />

Crop Length / Width<br />

Speed / Length<br />

Thickness / Thickness Profile<br />

Temperature Centrel<strong>in</strong>e / Profile<br />

Flatness<br />

2D Surface Inspection<br />

Coil W<strong>in</strong>d<strong>in</strong>g Quality<br />

The <strong>in</strong>troduction of cont<strong>in</strong>uous cast<strong>in</strong>g technology <strong>in</strong><br />

1989 laid the foundation for a fundamental change <strong>in</strong> the<br />

production of hot roll<strong>in</strong>g worldwide. This technology won<br />

acceptance by the market <strong>in</strong> the early 90s.<br />

<strong>IMS</strong> has accompanied this tech nol ogy from the start and<br />

contrib uted significantly to improv<strong>in</strong>g product quality. The<br />

measur<strong>in</strong>g methods known from conven tional hot roll<strong>in</strong>g<br />

mills are also used <strong>in</strong> cont<strong>in</strong>uous cast<strong>in</strong>g plants. Due to<br />

the th<strong>in</strong> dimensions at high roll<strong>in</strong>g speeds, the measur<strong>in</strong>g<br />

systems have been adapted to this technology.<br />

Additional thermal stresses on the measur<strong>in</strong>g systems<br />

caused be semi-cont<strong>in</strong>uous roll<strong>in</strong>g have been elim<strong>in</strong>ated<br />

by suitable measures. These days, the thickness tolerances<br />

achieved <strong>in</strong> hot roll<strong>in</strong>g measurement today are<br />

comparable with those achieved <strong>in</strong> the cold roll<strong>in</strong>g sector.<br />

This decrease <strong>in</strong> hot roll<strong>in</strong>g thick ness has made it necessary<br />

for the flatness to be improved radically <strong>in</strong> the<br />

production process.The measur<strong>in</strong>g system M<strong>in</strong>iMaster<br />

was developed for <strong>in</strong>stallation at the entry section to the<br />

f<strong>in</strong>ish<strong>in</strong>g mill. The systems used <strong>in</strong> hot roll<strong>in</strong>g applications<br />

are used for fast level 1 control loops and for support<strong>in</strong>g<br />

mathematical models for crown, width, contour and<br />

flat ness.<br />

In future, these values will be mea sured and assessed<br />

directly on the th<strong>in</strong> slab dur<strong>in</strong>g cast<strong>in</strong>g.<br />

In this example of a cont<strong>in</strong>uous cast<strong>in</strong>g plant operation,<br />

possible locations for the different meas ur <strong>in</strong>g systems<br />

are shown:<br />

• profile measur<strong>in</strong>g system M<strong>in</strong>iMaster for the<br />

measurement of centre l<strong>in</strong>e thickness, profile and<br />

temperature at the entry to the f<strong>in</strong>ish<strong>in</strong>g mill<br />

• profile measur<strong>in</strong>g system Multi Master for the<br />

measurement of centre l<strong>in</strong>e thickness, profile, width,<br />

flatness and temperature at the exit of the f<strong>in</strong>ish<strong>in</strong>g<br />

mill<br />

• TopPlan flatness measurement at the entry to the<br />

cool<strong>in</strong>g section<br />

12<br />






Steckel <strong>Mills</strong><br />

Example of a typical<br />

steckel mill configuration<br />

Slab Dimension (Volume / Weight))<br />

Width<br />

Crop Length / Width<br />

Speed / Length<br />

Thickness / Thickness Profile<br />

Temperature Centrel<strong>in</strong>e / Profile<br />

Flatness<br />

2D Surface Inspection<br />

Coil W<strong>in</strong>d<strong>in</strong>g Quality<br />

A complete steckel mill plant usually consists a four-high<br />

rough<strong>in</strong>g stand, a revers<strong>in</strong>g mill stand, and two coil boxes<br />

(mostly gas-heated) <strong>in</strong> which the strip temperature is<br />

ma<strong>in</strong>ta<strong>in</strong>ed dur<strong>in</strong>g the roll<strong>in</strong>g process.<br />

Both heavy plate and hot roll<strong>in</strong>g products with manufactur<strong>in</strong>g<br />

thicknesses similar to those of a wide hot roll<strong>in</strong>g<br />

mill are often rolled <strong>in</strong> a steckel mill.<br />

In spite of the conf<strong>in</strong>ed space, due to the close proximity<br />

of the coil boxes to the mill stand, <strong>IMS</strong> has successfully<br />

<strong>in</strong>stalled specially adapted multi-channel profile measur<strong>in</strong>g<br />

systems <strong>in</strong> various steckel mills.<br />

These measur<strong>in</strong>g systems are <strong>in</strong>corporated with<strong>in</strong> one<br />

overall gaug<strong>in</strong>g system provid<strong>in</strong>g simultaneous measurement<br />

of thick ness, profile, width, temperature and<br />

flatness directly at the exit of the stand.<br />

The follow<strong>in</strong>g <strong>IMS</strong> measur<strong>in</strong>g systems are <strong>in</strong>tegrated<br />

<strong>in</strong>to one gaug<strong>in</strong>g system <strong>in</strong> the above example of a<br />

steckel mill:<br />

• three-head isotope profile measurement, after the<br />

rough<strong>in</strong>g mill<br />

• isotope or x-ray thickness measurement between<br />

Coil Box 1 and the steckel mill<br />

• multifunctional measur<strong>in</strong>g system MultiMaster for<br />

the measurement of thickness, pro file, width and<br />

flatness between the steckel mill and coil box 2<br />

• TopPlan flatness measurement at the exit of the<br />

steckel mill, before the cool<strong>in</strong>g section<br />

• temperature and temperature profile measurements<br />

can be <strong>in</strong>stalled at every measur<strong>in</strong>g location<br />

Rough<strong>in</strong>g mill<br />

Cool<strong>in</strong>g section<br />

14<br />




Thickness <strong>Measur<strong>in</strong>g</strong> System<br />



Tw<strong>in</strong> Set Centrel<strong>in</strong>e Thickness &<br />

Profile <strong>Measur<strong>in</strong>g</strong> System<br />

The Tw<strong>in</strong>set profile measurement consists of two separate<br />

C-frames. At the entry side of the mill, one C-frame<br />

measures the centre l<strong>in</strong>e thickness of the strip. A second,<br />

scann<strong>in</strong>g C-frame located at the exit side of the Mill provides<br />

cross strip profile data as it scans backwards and<br />

forwards across the strip.<br />

The Tw<strong>in</strong>set profile measurement provides an <strong>in</strong>expensive<br />

method of measur<strong>in</strong>g correct strip profile provided<br />

that the strip rema<strong>in</strong>s flat on the roll table (i.e. at<br />

the correct passl<strong>in</strong>e). Any degree of non-flat ness <strong>in</strong> the<br />

strip dur<strong>in</strong>g scann<strong>in</strong>g will lead to <strong>in</strong>correct profile measurement.<br />

Thickness measur<strong>in</strong>g system<br />

The thickness measurement pro vides precise measurement<br />

of strip thickness at the centre l<strong>in</strong>e position. The<br />

measured thickness is transmitted to the master AGC<br />

control system for thickness control along the length<br />

of the coil.<br />

The thickness measurement can also be designed to<br />

provide cross-strip profile data. In this case the C-frame<br />

is made to scan the strip width cont<strong>in</strong>ually.<br />

For precision measurement of the profile, it is necessary<br />

to take <strong>in</strong>to consideration the centre l<strong>in</strong>e thickness variation<br />

along the length of the coil. S<strong>in</strong>ce it is not possible to<br />

measure the centre l<strong>in</strong>e thickness and the profile at the<br />

same time, either the strip must rema<strong>in</strong> stationary dur<strong>in</strong>g<br />

profile measurement, or the thick ness variation along the<br />

length of the coil must be neg ligibly small.<br />

Isotope or x-ray radiation may be used as the source of<br />

radiation, depend<strong>in</strong>g on the measur<strong>in</strong>g range. If there is<br />

a free choice, x-ray sources are preferred be cause they<br />

contribute to higher accuracy measurement.<br />

If x-ray sources are used, the thick ness measurement<br />

can ideally be equipped with a strip position angle compensation<br />

function. In this case the strip thickness is<br />

measured accurately, even without strip tension, when<br />

the strip may be oriented at various angles and passl<strong>in</strong>e<br />

positions with<strong>in</strong> the C-frame measur<strong>in</strong>g gap.<br />

This C-frame can also provide a measurement of strip<br />

centre l<strong>in</strong>e thickness, if it is positioned permanently at<br />

the centre of the strip.<br />

The measur<strong>in</strong>g system measures the follow<strong>in</strong>g parameters:<br />

• centre l<strong>in</strong>e thickness<br />

• strip centre l<strong>in</strong>e temperature<br />

• profile, wedge and crown<br />

• temperature profile<br />

The profile is calculated from the difference between the<br />

strip centre l<strong>in</strong>e thickness at the mill entry and the strip<br />

profile at the Mill exit. The distance between the entry<br />

C-frame and the exit C-frame is taken <strong>in</strong>to consideration.<br />

Furthermore, the number of cross profile scans is limited<br />

to between one and five depend<strong>in</strong>g on the length of the<br />

coil (or transfer bar), and the transport speed. Due to the<br />

relatively long control loop response time, on-l<strong>in</strong>e profile<br />

control is not feasible. And, under certa<strong>in</strong> circumstances,<br />

it is possible that changes <strong>in</strong> the profile – and therefore<br />

changes <strong>in</strong> the wedge and crown over the coil length –<br />

will not be measured accurately.<br />

Depend<strong>in</strong>g on the radiation beam geometry, one or two<br />

detectors are arranged <strong>in</strong> the strip length direction <strong>in</strong><br />

order to achieve the required measur<strong>in</strong>g resolution, i.e.<br />

the smallest measured width <strong>in</strong> the cross strip direction.<br />

The higher statistical noise obta<strong>in</strong>ed with a small number<br />

of detectors is disregarded.<br />

Tw<strong>in</strong> set centrel<strong>in</strong>e thickness & profile measur<strong>in</strong>g system<br />

16<br />




Three-Head Profile <strong>Measur<strong>in</strong>g</strong><br />

System<br />

M<strong>in</strong>iMaster<br />

Profile <strong>Measur<strong>in</strong>g</strong> System<br />



Profile measur<strong>in</strong>g system three-head<br />

The three-head profile measur<strong>in</strong>g system is the standard<br />

<strong>IMS</strong> measure ment for heavy plate mill applica tions and<br />

measures the follow<strong>in</strong>g parameters:<br />

• centre l<strong>in</strong>e thickness, edge thickness,<br />

wedge and crown<br />

• profile<br />

• width<br />

• temperature<br />

• length<br />

The three measur<strong>in</strong>g heads are built <strong>in</strong>to one C-frame<br />

– one centre head and two edge heads. The two edge<br />

heads are able to scan the plate width, but normally<br />

rema<strong>in</strong> <strong>in</strong> their respective edge positions. The centre<br />

head rema<strong>in</strong>s stationary at all times. Each measur <strong>in</strong>g<br />

head is equipped with a temperature pyrometer.<br />

An adaptive laser device mounted <strong>in</strong> the upper section of<br />

the C-frame pro vides a constant measurement of plate<br />

length. With the plate length value it is possible to locate<br />

the thickness, width and temperature values <strong>in</strong> their correct<br />

positions along the length of the plate.<br />

In normal operation the edge heads are positioned at<br />

prescribed fixed distances from the plate edges. Due<br />

to horizontal plate movements, camber formation and/<br />

or changes <strong>in</strong> the plate width, it is nec es sary to readjust<br />

the edge head posit ions to their prescribed nom<strong>in</strong>al<br />

positions. In order to achieve this, the posi tions of<br />

both plate edges are measured cont<strong>in</strong> ually by the CCD<br />

cameras and the edge heads repositioned as necessary.<br />

The plate width is calculated from the differ ence between<br />

edge head positions and the distance between the edge<br />

heads.<br />

The M<strong>in</strong>iMaster measur<strong>in</strong>g system offers an <strong>in</strong>expensive<br />

solution to the measurement of strip profile <strong>in</strong> cont<strong>in</strong>uous<br />

cast<strong>in</strong>g plants and provides the follow<strong>in</strong>g measurements:<br />

• centre l<strong>in</strong>e thickness<br />

• profile, wedge and crown<br />

• width<br />

• temperature<br />

The top arm of the C-frame is equipped with an isotope<br />

radia tion source, while the bottom arm conta<strong>in</strong>s up to<br />

13 ionisation chamber detectors.<br />

The measurement is located at the entry to the f<strong>in</strong>ish<strong>in</strong>g<br />

mill and provides feed forward <strong>in</strong>formation to the<br />

f<strong>in</strong>ish<strong>in</strong>g mill control computer. In the cont<strong>in</strong>uous cast<strong>in</strong>g<br />

plant defects from the cast<strong>in</strong>g sec tion are identified<br />

immediately, especially wedge and profile prob lems <strong>in</strong><br />

the <strong>in</strong>com<strong>in</strong>g bar. These errors, which orig<strong>in</strong>ate <strong>in</strong> the<br />

rough<strong>in</strong>g mill, are also detected <strong>in</strong> conventional hot roll<strong>in</strong>g<br />

mills.<br />

A special feature of the M<strong>in</strong>i Master measurement is<br />

the scann <strong>in</strong>g C-frame, which enables simultane ous<br />

measurement of centre l<strong>in</strong>e thickness and cross profile.<br />

Fur ther more, the scann<strong>in</strong>g periods – and therefore the<br />

cycle times of the profile measurement – are reduced<br />

by virtue of the multiple detector arrangement <strong>in</strong> the<br />

C-frame.<br />

The C-frame is driven by a rack and p<strong>in</strong>ion device<br />

mounted on a drive beam. The supports for this beam<br />

are located outside the roll table. The complete drive<br />

system, <strong>in</strong>clud<strong>in</strong>g the drive unit, is located <strong>in</strong> a protected<br />

area and is not exposed to the harsh environmental<br />

conditions at the measur<strong>in</strong>g position.<br />

The edge measur<strong>in</strong>g heads are also equipped with CCD<br />

cameras for the measurement of plate edge position.<br />

The outputs from these cameras are used for the measurement<br />

of plate width. At plate temperatures above<br />

750°C, the CCD camera <strong>in</strong> each edge head meas ures<br />

the plate position by detect<strong>in</strong>g the <strong>in</strong>frared radiation from<br />

the plate. At temperatures below 750°C light from a<br />

backlight situated under the roll table is used as the<br />

light source.<br />

Usually, the plate speed and the rela tive ly small plate<br />

lengths make it impossible to carry out a complete cross<br />

profile scan dur<strong>in</strong>g a s<strong>in</strong>gle pass. Therefore cross profile<br />

is only measured on station ary plates.<br />

Profile measur<strong>in</strong>g system M<strong>in</strong>iMaster<br />

18<br />




MultiMaster<br />

Profile <strong>Measur<strong>in</strong>g</strong> System<br />

Width <strong>Measur<strong>in</strong>g</strong> System<br />



Numerous parameters are taken <strong>in</strong>to account for the<br />

calculation of crop length:<br />

• safety marg<strong>in</strong>s and allowances for samples<br />

• m<strong>in</strong>. and max. crop lengths<br />

• width profile, as well as various head and tail<br />

shapes, e.g. fishtail and tongue shapes together<br />

with their symmetrical properties <strong>in</strong> the length and<br />

width directions<br />

Width measur<strong>in</strong>g system with scann<strong>in</strong>g cameras<br />

Optical measur<strong>in</strong>g systems are de signed and eng<strong>in</strong>eered<br />

for use <strong>in</strong> extreme environmental condi tions. The<br />

cameras work at ex treme ly high scann<strong>in</strong>g rates so that<br />

water, steam and scale have negligible <strong>in</strong>fluence on the<br />

f<strong>in</strong>al measurements. Statistical analyses are applied for<br />

further checks of measured data plausibility.<br />

Profile measur<strong>in</strong>g system MultiMaster<br />

The MultiMaster profile measur<strong>in</strong>g system is the most<br />

<strong>in</strong>clusive of the multi-channel profile meas urements,<br />

provid<strong>in</strong>g a truly multi-function capability. The earlier<br />

stereoscopic arrangement of radi ation sources and<br />

detectors has been replaced by a laser-contour system<br />

(LasCon) consist<strong>in</strong>g of two laser l<strong>in</strong>es projected on to the<br />

strip/plate surface, and a CCD matrix camera. The profile<br />

measur<strong>in</strong>g system meas ures the follow<strong>in</strong>g parameters:<br />

• centre l<strong>in</strong>e thickness<br />

• profile, wedge and crown<br />

• width<br />

• flatness<br />

• strip position and strip contour <strong>in</strong> the cross and<br />

longitud<strong>in</strong>al (roll<strong>in</strong>g) directions<br />

• temperature, and optionally, temperature profile<br />

• optionally, speed and length<br />

The upper arm of the C-frame conta<strong>in</strong>s two x-ray sources<br />

and two laser systems. The bottom arm conta<strong>in</strong>s<br />

ionisation chamber detectors arranged <strong>in</strong> a s<strong>in</strong>gle l<strong>in</strong>e<br />

along the length of the C-frame, thereby render<strong>in</strong>g it<br />

unnecessary to <strong>in</strong>stall an apron plate between the two<br />

rolls either side of the C-frame.<br />

Further advantages of this system are:<br />

• precise determ<strong>in</strong>ation of strip position and strip<br />

contour <strong>in</strong> the strip longitud<strong>in</strong>al and cross directions<br />

• determ<strong>in</strong>ation of the strip width and side shift tak<strong>in</strong>g<br />

<strong>in</strong>to account the cross contour of the strip<br />

• compensation for the effects of cross and length<br />

angles of the strip – the only system <strong>in</strong> the world that<br />

measures and compensates for the effects of vari a-<br />

tions <strong>in</strong> strip length (pass) angle<br />

These profile measur<strong>in</strong>g systems are used <strong>in</strong> modern<br />

hot roll<strong>in</strong>g and steckel mills where exact<strong>in</strong>g demands<br />

are placed on product quality.<br />

MultiMasters <strong>in</strong> isotope version are used <strong>in</strong> heavy plate<br />

mills and rough<strong>in</strong>g stands of hot wide strip mills.<br />

Optical measur<strong>in</strong>g systems have a long tradition at <strong>IMS</strong>.<br />

We manufacture s<strong>in</strong>gle and multi-camera systems to<br />

measure the width, position and diameter of hot and<br />

cold rolled products. The measur <strong>in</strong>g methods applied<br />

depend on the application. CCD cameras are used as<br />

detectors. They are either <strong>in</strong>tegrated <strong>in</strong> a fixed position<br />

hous<strong>in</strong>g or mounted on a l<strong>in</strong>ear drive beam unit enabl<strong>in</strong>g<br />

variable position<strong>in</strong>g.<br />

Thanks to the use of high-perform ance cameras, modern<br />

computer technology paired with high transmission<br />

speeds, as well as laser light sources, the follow<strong>in</strong>g additional<br />

functions can be <strong>in</strong>tegrated <strong>in</strong>to the complete<br />

system:<br />

• detection of p<strong>in</strong> holes and edge cracks<br />

• 3D measurement of the strip position <strong>in</strong> the<br />

measur<strong>in</strong>g gap<br />

• measurement of slab edge contours<br />

• detection of plate and transfer bar head and tail<br />

shapes for the determ<strong>in</strong>ation of crop lengths<br />

Material to be<br />

measured<br />

Temperature and<br />

speed measurement<br />

Flap<br />

Air overpressure<br />

<strong>in</strong> the measur<strong>in</strong>g<br />

house<br />

CCD cameras,<br />

L<strong>in</strong>ear unit<br />

<strong>Measur<strong>in</strong>g</strong> house of a strip width measurement at a rough<strong>in</strong>g mill<br />

20<br />




TopPlan Strip Flatness<br />

<strong>Measur<strong>in</strong>g</strong> System<br />



Possible uses of<br />

Isotope and X-ray Radiation<br />

X-ray tube<br />

Ionisation chamber<br />

Source holder<br />

For flatness measurement, <strong>IMS</strong> provides an optical<br />

measur<strong>in</strong>g system which works on the pr<strong>in</strong> ciple of the<br />

“projected fr<strong>in</strong>ge” technique. The measur<strong>in</strong>g system is<br />

referred to as TopPlan topo metric flatness measurement.<br />

In hot roll<strong>in</strong>g and cont<strong>in</strong>uous cast<strong>in</strong>g plants flatness is<br />

measured after the f<strong>in</strong>ish<strong>in</strong>g mill and the measured data<br />

transmitted to the profile and flatness control system.<br />

There is only a short time avail able for measurement<br />

before the coiler tension comes <strong>in</strong>to effect. The flatness<br />

measured value must therefore be available <strong>in</strong> a highly<br />

accurate form, immediately after the strip head enters<br />

the measur <strong>in</strong>g gap, so that the control system can react<br />

quickly. Up to 60 software “fibres” are produced across<br />

the width of the strip. This compares to typically 9 po<strong>in</strong>ts<br />

of meas urement across the strip width with conventional<br />

laser systems.<br />

In heavy plate mills high demands are placed not only<br />

on the flat ness, but also on the straightness of the plate.<br />

The aim is to achieve a flat-parallel plate without crown,<br />

ripple, turn-up/turn-down or twist<strong>in</strong>g.<br />

Typical applications for flatness mea surements are:<br />

• after the revers<strong>in</strong>g mill<br />

• after the hot leveller<br />

• after the cold leveller<br />

• <strong>in</strong> dress<strong>in</strong>g and straighten<strong>in</strong>g mills<br />

• at the <strong>in</strong>spection stage<br />

Very high demands are placed on the accuracy of plate<br />

surface height distribution measurement <strong>in</strong> dress<strong>in</strong>g and<br />

straighten<strong>in</strong>g l<strong>in</strong>es and at the plate <strong>in</strong>spection stages, as<br />

the end product is mani pulated and verified accord<strong>in</strong>g<br />

to prevail<strong>in</strong>g standards.<br />

Isotope sources and x-ray tubes are used as radiation<br />

sources.<br />

Isotope sources emit monochromatic radiation. X-ray<br />

tubes, by contrast, emit an energy spectrum that depends<br />

largely on the high-voltage applied to the tube. The<br />

maximum thickness of steel that can be measured us<strong>in</strong>g<br />

x-ray radi ation is 50 mm. The use of x-ray technology for<br />

the measurement of higher thicknesses is uneconomical.<br />

In hot roll<strong>in</strong>g mills, isotope measur <strong>in</strong>g systems are used<br />

at the rough <strong>in</strong>g mill stage, and x-ray systems at the<br />

f<strong>in</strong>ish<strong>in</strong>g mill and coiler locations.<br />

X-ray systems from <strong>IMS</strong> are oper ated at a fixed high<br />

voltage for the follow<strong>in</strong>g reasons:<br />

• maximum x-ray tube lifetime by ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g the<br />

tube under constant load<br />

• low load on the x-ray tubes through low operat<strong>in</strong>g<br />

parameters; nom<strong>in</strong>al values:<br />

3 kW, 225 kV, 10 mA;<br />

typical actual values:<br />

0.4 kW, 155 kV, 2.5 mA<br />

• no drift<strong>in</strong>g of the tubes due to temperature changes<br />

on adjustment of the high voltage<br />

<strong>IMS</strong> uses only ionisation chambers because they offer<br />

the follow<strong>in</strong>g major advantages:<br />

• very high sensitivity and therefore high signal yield<br />

across a wide range of radiation energies – from<br />

ca. 5 keV to 1 MeV<br />

• <strong>in</strong>sensitivity to environmental <strong>in</strong>fluences <strong>in</strong>clud<strong>in</strong>g<br />

temperature variations<br />

• long operat<strong>in</strong>g life – they are not subject to wear<br />

and tear<br />

• not affected by exposure to maximum and direct<br />

radiation; the radiation <strong>in</strong>tensity does not have to<br />

be attenuated by additional absorbers <strong>in</strong> order to<br />

protect the ionisation chambers<br />

• design, chamber volume, gas type, gas pressure,<br />

etc. can be adapted to the measur<strong>in</strong>g task<br />

Radiation source X-ray tube Isotope<br />

Radiation energy<br />

Max. thickness (steel)<br />

Time constant<br />

<strong>Measur<strong>in</strong>g</strong> po<strong>in</strong>t<br />

20 – 130 keV<br />

0 – 50 mm<br />

1 – 5 ms<br />

2 mm<br />

662 keV<br />

0 – 150 mm<br />

25 ms<br />

25 mm<br />

Isotope and x-ray radiation can be detected us<strong>in</strong>g<br />

different technol o gies, e.g. with sc<strong>in</strong>tillation counters,<br />

semiconductors and ionisa tion chambers.<br />

TopPlan strip flatness measur<strong>in</strong>g system<br />

22<br />




<strong>IMS</strong> MEASURING SYSTEMS<br />


Cool<strong>in</strong>g of the<br />

<strong>Measur<strong>in</strong>g</strong> Systems<br />

Break<strong>in</strong>g Barriers<br />

through Optimisation<br />

Due to the high radiant heat from the strip/plate dur<strong>in</strong>g<br />

the roll<strong>in</strong>g process <strong>in</strong> hot roll<strong>in</strong>g and heavy plate mills,<br />

it is necessary to cool the measur<strong>in</strong>g systems. To withstand<br />

the high thermal stresses reliably for many years of<br />

operation, <strong>IMS</strong> uses water-cooled, double-walled<br />

C-frames and protective enclosures made usually of<br />

sta<strong>in</strong>less steel.<br />

The use of x-ray technology <strong>in</strong> measur<strong>in</strong>g systems makes<br />

addi tional cool<strong>in</strong>g of the x-ray tubes necessary because<br />

they operate at very high temperatures.<br />

Gauges and x-ray tubes are cooled by cool<strong>in</strong>g water<br />

flow<strong>in</strong>g <strong>in</strong> closed secondary cool<strong>in</strong>g water circuits <strong>in</strong>stalled<br />

<strong>in</strong> supply cubicles devel oped and manufactured<br />

by <strong>IMS</strong>. Each secondary circuit is designed for the<br />

separate cool<strong>in</strong>g of the C-frame, x-ray tube and other<br />

components. The accumulated heat is removed by the<br />

customer’s primary water as it flows through a sta<strong>in</strong>less<br />

steel plate heat exchanger <strong>in</strong> the primary cool<strong>in</strong>g water<br />

circuit. The necessary cool <strong>in</strong>g flow rates are controlled<br />

thermostatically. Tem pe rature, pres sure and flow are<br />

monitored.<br />

<strong>IMS</strong> measur<strong>in</strong>g systems are used <strong>in</strong> roll<strong>in</strong>g mills <strong>in</strong> the<br />

harshest of environmental conditions and are renowned<br />

for their very high availability.<br />

By us<strong>in</strong>g modern x-ray technology and fast, high-precision<br />

detectors, <strong>IMS</strong> measur<strong>in</strong>g systems achieve extremely<br />

high measur<strong>in</strong>g accuracies at very low measur<strong>in</strong>g time<br />

constants, establish<strong>in</strong>g their rightful place <strong>in</strong> the range of<br />

high-tech systems used <strong>in</strong> <strong>in</strong>dustrial metrology.<br />

Together with optimised process models and precision<br />

control technology, the measur<strong>in</strong>g meth ods and technologies<br />

described are essential pre-requisites <strong>in</strong> the<br />

atta<strong>in</strong>ment of the high level product quality required<br />

<strong>in</strong> high-speed cont<strong>in</strong>uous production processes.<br />

An <strong>in</strong>ter-plant quality management system enables<br />

<strong>in</strong>ter-process optimisation.<br />

New goals are achieved through permanent ongo<strong>in</strong>g<br />

development. What is technically feasible today may be<br />

accepted as every day practice tomorrow, and possibly<br />

replaced completely by new technologies the day after.<br />

Supply cubicle<br />

Thermocouples measure the actual operat<strong>in</strong>g temperatures<br />

<strong>in</strong> the C-frame and protective enclosures. Alarms<br />

and fault conditions are transmitted to the ma<strong>in</strong> control<br />

system when limit values are exceeded.<br />

24<br />


MEVIweb<br />

Human Mach<strong>in</strong>e Interface (HMI)<br />

MEVIweb<br />

User software developed <strong>in</strong>house by <strong>IMS</strong> with<br />

excellent user experience<br />

The impressive performance of all <strong>IMS</strong> measur<strong>in</strong>g systems<br />

is not only def<strong>in</strong>ed by their reliable functionality,<br />

consistently accurate measur<strong>in</strong>g results and impressive<br />

service life. The extremely user-friendly control and regulation<br />

software is also an important factor <strong>in</strong> the success<br />

of our radiometric and optical measur<strong>in</strong>g systems.<br />

MEVIweb is the logical further development of the wellknown<br />

and previously used automation system MEVInet.<br />

Developed by <strong>IMS</strong>, this human mach<strong>in</strong>e <strong>in</strong>terface<br />

uses the latest technology standards and always focuses<br />

on the user and his or her <strong>in</strong>dividual requirements.<br />

As an automation system of the latest generation,<br />

MEVIweb fulfils the follow<strong>in</strong>g tasks us<strong>in</strong>g the latest software<br />

and hardware technologies:<br />

• measurement<br />

• control<br />

• regulation<br />

• visualisation<br />

• quality management<br />

In addition to precise measurement technology, special<br />

emphasis was placed dur<strong>in</strong>g development on diagnostic<br />

and ma<strong>in</strong>tenance support, <strong>in</strong>clud<strong>in</strong>g the possibility of remote<br />

diagnosis. Programm<strong>in</strong>g is effected with modules<br />

accord<strong>in</strong>g to IEC 61131 of the logi.CAD system, us<strong>in</strong>g<br />

standardised operat<strong>in</strong>g systems and <strong>in</strong>terfaces.<br />

The follow<strong>in</strong>g software extension packages are<br />

available to our customers for their <strong>in</strong>dividual<br />

control and regulation software requirements:<br />

• Q Lite<br />

• Q Basic<br />

• Q Professional<br />

• Q Data Exporter *<br />

• SPS Programm<strong>in</strong>g<br />

* (can only be used with Q Lite, Basic or Professional)<br />


• Use of newest technologies (JavaScript,<br />

NodeJS, HTML5, CSS, JSON)<br />

• Open communication with standardised,<br />

non-proprietary <strong>in</strong>terfaces<br />

• Large test coverage with unit tests, <strong>in</strong>tegration<br />

tests and simulation<br />

• Scalability<br />

• Platform <strong>in</strong>dependence (reduction of dependencies)<br />

• Unified configuration tools & improved user<br />

experience<br />

• Web configuration<br />

• Use of smartphones and tablets possible<br />

• Modern appearance with various customisable<br />

themes<br />

• Clearly structured, user-friendly <strong>in</strong>terface<br />

• Enhanced functionality

<strong>IMS</strong> as Pioneer<br />

S<strong>in</strong>ce its foundation <strong>in</strong> 1980, <strong>IMS</strong> has successfully faced the ever-grow<strong>in</strong>g<br />

requirements of the roll<strong>in</strong>g <strong>in</strong>dustry for high-performance measur<strong>in</strong>g systems.<br />

The result: a product portfolio of high-precision, non-contact detect<strong>in</strong>g<br />

systems that covers all measur<strong>in</strong>g tasks aris<strong>in</strong>g <strong>in</strong> your production l<strong>in</strong>es. We<br />

would like to present outstand<strong>in</strong>g system developments, some of which <strong>IMS</strong><br />

was the first manufacturer worldwide to br<strong>in</strong>g to market, thereby establish<strong>in</strong>g<br />

itself as market leader.<br />

1981 – 1983<br />

Successful development of<br />

microprocessor technologies<br />

(1981) and commission<strong>in</strong>g<br />

of the first optical<br />

width measur<strong>in</strong>g system<br />

(1983) replace conventional<br />

analogue technologies<br />

1981<br />

1988 FIRST<br />

2nd Generation of Multichannel<br />

Profile <strong>Measur<strong>in</strong>g</strong> System<br />

Market launch of the second<br />

generation of monoscopic<br />

isotope thickness measur<strong>in</strong>g<br />

systems (gamma radiation) for<br />

flat products<br />

1995 FIRST<br />

3rd Generation of Multichannel<br />

Profile <strong>Measur<strong>in</strong>g</strong> System<br />

Market launch of the third generation<br />

of thickness measur<strong>in</strong>g systems for<br />

flat products, now based on x-ray<br />

radiation<br />

1997 FIRST<br />

Market Launch<br />

of Edge Drop<br />

Strip Edge Profile<br />

<strong>Measur<strong>in</strong>g</strong> System<br />

The first radiometric<br />

strip edge profile<br />

measur<strong>in</strong>g system<br />

for high-resolution<br />

measurement of<br />

strip thickness,<br />

wedge and strip<br />

cross profile enters<br />

service<br />

2001 FIRST<br />

Market Launch of<br />

TopPlan Strip Flatness<br />

<strong>Measur<strong>in</strong>g</strong> System<br />

Presentation of the<br />

three-dimensional and<br />

non-contact optical<br />

strip flatness measur<strong>in</strong>g<br />

system TopPlan<br />

2008 FIRST 2014 FIRST<br />

Development Work on<br />

surcon 3D Surface Inspection<br />

Systems Beg<strong>in</strong>s<br />

As the first manufacturer<br />

worldwide, <strong>IMS</strong> develops a 3D<br />

surface <strong>in</strong>spection system able<br />

to detect the surface quality of<br />

slabs and billets at temperatures<br />

of even above 1,000°C<br />

us<strong>in</strong>g a laser section<strong>in</strong>g<br />

technique<br />

2010<br />

Market Launch of a Billet<br />

Contour <strong>Measur<strong>in</strong>g</strong> System<br />

The first measur<strong>in</strong>g system<br />

for dimensional measurement<br />

of hot billets and<br />

profiles enters service<br />

successfully<br />

Market Launch of Camera<br />

Cluster Systems (CCS)<br />

First deployment of compact<br />

camera cluster systems (CCS)<br />

for width, hole and edge crack<br />

detection, slit strip width<br />

measurement, flatness and<br />

evenness measurement, sheet<br />

geometry measurement and<br />

p<strong>in</strong>hole detection<br />

2017 FIRST<br />

First Deployment<br />

of an XRD Phase<br />

Content <strong>Measur<strong>in</strong>g</strong><br />

System<br />

Successful commission<strong>in</strong>g<br />

of the<br />

first onl<strong>in</strong>e phase<br />

content measur<strong>in</strong>g<br />

system based on<br />

x-ray diffraction <strong>in</strong><br />

a hot-dip galvanis<strong>in</strong>g<br />

l<strong>in</strong>e<br />

2020<br />

First Deployment of a Laser<br />

Thickness <strong>Measur<strong>in</strong>g</strong> System<br />

The first laser thickness measur<strong>in</strong>g<br />

system for cold-rolled strip<br />

is successfully <strong>in</strong>stalled and<br />

commissioned <strong>in</strong> a slitt<strong>in</strong>g l<strong>in</strong>e<br />

2022 FIRST<br />

Development of a<br />

Magnetic Strip Flatness<br />

<strong>Measur<strong>in</strong>g</strong> System<br />

Magnetic strip flatness<br />

measur<strong>in</strong>g system for<br />

tensile strip developed<br />

as an alternative to<br />

conventional shapemeter<br />

rolls<br />

TODAY<br />

1984 FIRST<br />

1990<br />

2002 FIRST<br />

2015 FIRST<br />

2021 FIRST<br />

1st Generation of<br />

Multichannel Profile<br />

<strong>Measur<strong>in</strong>g</strong> System<br />

Market launch of the first<br />

generation of monoscopic<br />

isotope thickness measur<strong>in</strong>g<br />

systems (gamma<br />

radiation) for flat products<br />

Market Launch of Tube<br />

Thickness <strong>Measur<strong>in</strong>g</strong><br />

System<br />

The first high-performance<br />

measur<strong>in</strong>g system for<br />

non-contact, cont<strong>in</strong>uous<br />

measurement of tube<br />

thickness, geometry,<br />

contour and position enters<br />

service successfully<br />

Market Launch of <strong>IMS</strong>pect<br />

Coat<strong>in</strong>g Weight <strong>Measur<strong>in</strong>g</strong><br />

System<br />

Commission<strong>in</strong>g of the first optical<br />

coat<strong>in</strong>g weight measur<strong>in</strong>g system<br />

for determ<strong>in</strong>ation of coat<strong>in</strong>g thicknesses<br />

<strong>in</strong> pre- and post-treatments<br />

with chromates, titanium, zirconium<br />

compounds as well as<br />

<strong>in</strong> chromium-free pre-treatments<br />

2013<br />

First Deployment of Radar<br />

Width <strong>Measur<strong>in</strong>g</strong> System<br />

For the first time, a radarbased<br />

measur<strong>in</strong>g system<br />

specially developed for use<br />

under even the harshest<br />

environmental conditions <strong>in</strong><br />

hot roll<strong>in</strong>g mills enters service<br />

First Deployment of a Radar<br />

Thickness <strong>Measur<strong>in</strong>g</strong> System<br />

Specially developed for the harsh<br />

environmental conditions <strong>in</strong> hot<br />

roll<strong>in</strong>g mills, the first radar thickness<br />

measur<strong>in</strong>g system enters<br />

service <strong>in</strong> a Steckel mill<br />

1996<br />

1999<br />

Development of Modern<br />

X-Ray Components<br />

In-house development of x-ray<br />

generators and control units<br />

specifically optimised for use <strong>in</strong><br />

<strong>IMS</strong> measur<strong>in</strong>g systems<br />

First Deployment of<br />

MEVInet-Q Data Archiv<strong>in</strong>g System<br />

The first version of the MEVInet-Q data<br />

archiv<strong>in</strong>g system, equipped with scalable<br />

software for automated acquisition<br />

and visualisation of relevant measurement<br />

data, is deployed<br />

2009 FIRST<br />

Production of XR Thickness<br />

<strong>Measur<strong>in</strong>g</strong> Systems Beg<strong>in</strong>s <strong>in</strong> the USA<br />

The US subsidiary <strong>IMS</strong> Systems, Inc. starts<br />

production of x-ray thickness measur<strong>in</strong>g<br />

systems <strong>in</strong> revised form as compact, modular<br />

solution for strip thickness measurement <strong>in</strong><br />

cold roll<strong>in</strong>g mills and process l<strong>in</strong>es<br />

Further Development of MEVInet-Q2 Data Archiv<strong>in</strong>g System<br />

Optimisation of the MEVInet-Q quality data archiv<strong>in</strong>g system as well as its<br />

automated evaluation of measurement data for quality assurance purposes<br />

over the entire production process from hot strip, cold strip, material f<strong>in</strong>ish<strong>in</strong>g<br />

to dress<strong>in</strong>g and straighten<strong>in</strong>g<br />

Market Launch of a Compact X-Ray Generator with Control Unit<br />

Integration of the compact x-ray generator and control unit comb<strong>in</strong>ed <strong>in</strong>to<br />

one component <strong>in</strong> <strong>IMS</strong> measur<strong>in</strong>g frames simplifies <strong>in</strong>stallation, and enables<br />

faster control and trouble-free operation of the system<br />

2019 FIRST<br />

Development of the Inclusion<br />

Detection System (IDS)<br />

The Inclusion Detection System<br />

(IDS), based on the pr<strong>in</strong>ciple<br />

of magnetic flux leakage and<br />

specially developed for the early<br />

detection of <strong>in</strong>ternal defects and<br />

shell defects <strong>in</strong> cold-rolled strip<br />

steels, has already entered<br />

service successfully

The Way Forward<br />

We at <strong>IMS</strong> see ourselves as a self-learn<strong>in</strong>g organisation whose corporate<br />

concept is geared towards ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g a high level of know-how at<br />

all times as the basis for our highly developed measur<strong>in</strong>g systems:<br />

non-contact detection systems which, thanks to their <strong>in</strong>novative and<br />

customer-specific developments, are often not only ahead of the times,<br />

but also of our competitors.<br />

We can only achieve and guarantee this market lead over the long term if<br />

we work together closely with our customers as partners as the concrete<br />

and very <strong>in</strong>dividual problems of our customers are our challenges for<br />

constant new developments of advanced technology that withstands<br />

the harshest conditions thanks to precise yet robust mechanics. Strong<br />

partners from research and eng<strong>in</strong>eer<strong>in</strong>g round off our competence team.<br />

The result: precision systems of the highest order for optimally monitored<br />

processes <strong>in</strong> hot roll<strong>in</strong>g mills, cold roll<strong>in</strong>g mills and service centres.<br />

24/7 Service<br />

Worldwide<br />

As the world market leader for<br />

measur<strong>in</strong>g systems, we know that<br />

high-precision technology requires a<br />

maximum focus on quality. This also<br />

applies to our high-performance and<br />

comprehensive service, which turns<br />

our measur<strong>in</strong>g systems <strong>in</strong>to true fullbus<strong>in</strong>ess<br />

solutions.<br />

Worldwide service around the clock – which we offer<br />

and guarantee our customers through our <strong>IMS</strong> Service<br />

Centres distributed strategically around the globe.<br />

Even before delivery of the new measur<strong>in</strong>g system, your<br />

employees can undergo <strong>in</strong>tensive tra<strong>in</strong><strong>in</strong>g <strong>in</strong> our <strong>in</strong>house<br />

academy to ensure optimal <strong>in</strong>tegration and highperformance<br />

operation of the system <strong>in</strong> your process<br />

sequences from the very beg<strong>in</strong>n<strong>in</strong>g. Our service team<br />

will of course take care of ma<strong>in</strong>tenance, repair and any<br />

spare parts that may be required for constant smooth<br />

operation <strong>in</strong> your production cha<strong>in</strong>.<br />

Through remote ma<strong>in</strong>tenance at the highest technological<br />

level, we are able to carry out error diagnoses<br />

directly when required and guarantee immediate competent<br />

support for your employees on site. Your benefit:<br />

optimal service life of all components, while the systems<br />

are and rema<strong>in</strong> adapted to the constant development <strong>in</strong><br />

technical requirements.<br />

With our three service packages – Basic, Silver<br />

and Gold – we offer you exactly the service that is<br />

tailored to your requirements and needs. Support via<br />

our toll-free 24/7 telephone hotl<strong>in</strong>e is already part of our<br />

Basic package, and direct remote support is available<br />

from Silver onwards. F<strong>in</strong>ally, our <strong>IMS</strong> Gold service as<br />

an all-round carefree package ensures that our service<br />

technicians are deployed on site <strong>in</strong> the event of a malfunction<br />

and that spare parts are available and delivered<br />

<strong>in</strong> less than 24 hours.<br />

You want a quote for your system? With pleasure!<br />

Simply contact us.

„Responsibility means to<br />

blame yourself for the lack of<br />

susta<strong>in</strong>ability.“<br />

(Ronny Boch, geologist, free author)<br />

Conservation of resources<br />

through precision out of<br />

passion and quality out of<br />

conviction<br />

We at <strong>IMS</strong>, as the world market leader for measur<strong>in</strong>g<br />

systems, are aware of our social responsibility of susta<strong>in</strong>able<br />

management!<br />

To give our customers, suppliers and stakeholders a<br />

transparent <strong>in</strong>sight <strong>in</strong>to concrete measures we have implemented<br />

<strong>in</strong> the <strong>IMS</strong> Group, we launched the project<br />

<strong>IMS</strong>ocial <strong>in</strong> close adherence to the pr<strong>in</strong>ciples of Corporate<br />

Social Responsibility (CSR).<br />

But for us at <strong>IMS</strong>, <strong>IMS</strong>ocial is more than just a project!<br />

<strong>IMS</strong>ocial is a belief and stands for the values of our corporate<br />

philosophy.<br />

After all, the sooner even m<strong>in</strong>or defects – which <strong>in</strong> steel<br />

products can already render them useless – are detected,<br />

the faster mach<strong>in</strong><strong>in</strong>g processes can be corrected.<br />

And precisely this contributes significantly to active climate<br />

protection as it is no longer necessary to produce<br />

new products to substitute defective ones, thereby<br />

sav<strong>in</strong>g energy and water, and also reduc<strong>in</strong>g reject rates<br />

significantly.<br />

Learn more about <strong>IMS</strong>ocial and visit us at<br />

www.imsocial.<strong>in</strong>fo!<br />

We not only want to achieve susta<strong>in</strong>ability <strong>in</strong> our products<br />

and customer relations, but also place the same<br />

demands on our social, ecological and economic responsibility.<br />

The first thought that comes to m<strong>in</strong>d <strong>in</strong> connection with<br />

the non-contact measur<strong>in</strong>g systems from <strong>IMS</strong> for the<br />

steel, non-ferrous metal and alum<strong>in</strong>ium <strong>in</strong>dustries is<br />

certa<strong>in</strong>ly not one of active conservation of resources.<br />

However, our isotope, x-ray and optical measur<strong>in</strong>g systems<br />

do exactly that: they save and preserve resources!<br />

The <strong>IMS</strong> product portfolio comprises numerous measur<strong>in</strong>g<br />

systems and processes for various types of measurement.<br />

Our systems deliver and document exceptionally<br />

precise measurement results under the toughest<br />

conditions <strong>in</strong> hot and cold roll<strong>in</strong>g mills as well as service<br />

centres. In this way it is possible to detect material defects,<br />

surface irregularities, tolerance and dimensional<br />

deviations and many other factors that, <strong>in</strong> the worst<br />

case, would lead later to material rejects at an early stage<br />

dur<strong>in</strong>g the manufactur<strong>in</strong>g process.

<strong>IMS</strong> worldwide<br />


AMPEXA<br />


Beijer Oy<br />

POLAND<br />

<strong>IMS</strong> Systems Poland z o.o.<br />


EUROSIA Trad<strong>in</strong>g Co., Ltd<br />


FEC Pty Ltd.<br />


<strong>IMS</strong> Messsysteme GmbH<br />

RUSSIA<br />

<strong>IMS</strong> Service LLC.<br />

TURKEY<br />

<strong>IMS</strong> Metalurji Servis Ltd., Sti.<br />

BRASIL<br />

<strong>IMS</strong> do Brasil<br />

CHINA (P.R.C.)<br />

<strong>IMS</strong> Messsysteme<br />

(Shanghai) Co., Ltd.<br />

Hongjian Autome<br />

International Limited<br />

DUBAI<br />

<strong>IMS</strong> Maco<br />

<strong>Measur<strong>in</strong>g</strong> Systems (FCZ)<br />

EGYPT<br />

A.T.S. Company<br />

INDIA<br />

<strong>IMS</strong> Maco Services Pvt., Ltd.<br />


PT. Indojaya Mitra Sarana<br />

ITALY<br />

Mediter S.A.S.<br />

JAPAN<br />

Nireco Corporation<br />

KOREA<br />

<strong>IMS</strong> Systems Korea Co., Ltd.<br />

MEXICO<br />

<strong>IMS</strong>SYS Mexico S.A. de C.V.<br />

SWEDEN<br />

Olsson & Falck AB<br />


UNICOM<br />

SPAIN<br />

Industrial Equipment and<br />

Consumables, S.L.<br />


REMAG (Pty) Ltd.<br />

TAIWAN<br />

Litefluid Eng<strong>in</strong>eer<strong>in</strong>g Co., Ltd.<br />

Tarakcioglu A.S.<br />

USA<br />

<strong>IMS</strong> Systems Inc.<br />


<strong>IMS</strong> Venezuela C.A.<br />


TRC Poole<br />


<strong>IMS</strong> Systems Vietnam Co., Ltd.<br />

Cuong Phat Co., Ltd.

<strong>IMS</strong> Messsysteme GmbH<br />

Dieselstraße 55<br />

42579 Heiligenhaus | Germany<br />

Phone: +49 (0) 2056 / 975 – 0<br />

Fax: +49 (0) 2056 / 975 – 140<br />

Email: <strong>in</strong>fo@ims-gmbh.de<br />

www.ims-gmbh.de | www.ims-experts.com | www.imsocial.<strong>in</strong>fo

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