SIROLLCIS CM Solutions for cold rolling mills - Industry - Siemens

voestalpine Stahl, Linz, Austria
Tangshan Iron & Steel, Tangshan, China
Nonstop production possible
for any existing tandem mill
In recent years, the most newly installed
tandem cold mills have been continuous
operation mills, which indicate that this
type has displaced the traditional batch
mill. The reason is clear: the productivity
of a continuous mill is significantly higher
(up 40%) than a batch mill. One
significant factor in this improvement
was the development of laser welders.
The weld seam produced by these laser
welders and the modern control
techniques allow minimum loss of time
and material. As a result, later conversion
of a batch mill into a continuous mill is a
typical market trend of the early decade
of this century. Generally, any existing
non-continuous tandem mill of any line
layout can be converted into a
continuously operating mill with the use
of suitable strip turning units, the right
equipment and careful arrangement of all
mill and logistical facilities.
Additions for continuous operation
Siemens VAI offers the following
equipment for the continuous operation
of your mill:
Welders (flash butt and laser welders)
Accumulators (2-, 4-, or 6-strand) at
one or two levels
Scale breakers
Side trimmers
Bridles for decoupling the tension of
the different line sections
Exit sections with flying shear and 2
reels or carrousel coiler depending on
the strip thickness
Main benefits:
High production rates
Optimized yield
Reduced roll consumption
Flexible production
Tight tolerances for strip thickness,
shape and high surface quality
Low costs for operation, maintenance
and minimum down times
Selected references:
voestalpine Stahl, Linz, Austria
Salzgitter Flachstahl, Salzgitter,
Germany
ArcelorMittal, Bremen, Germany
Essar, Hazira, India
SSAB, Oxelösund, Sweden
P.T. Krakatau Steel, Cilegon, Indonesia
ArcelorMittal, Sagunto, Spain
ArcelorMittal, Ferblatil, Belgium
ArcelorMittal, La Magona, Piombino,
Italy
9