STEEL + TECHNOLOGY 04/2019 EXTRACT

70 | STEEL TECHNOLOGY
Figure 4. Elongation capability for 1,400 MPa grade (Picture: Fives)
rechecked and validated by model calculation.
Skin-pass stand design covers:
• high rolling force up to 1,800 t,
• high bending block capacity,
• capability to use two work roll diameter,
• optimization of environment footprint
with either a spraying system adjustable
according to the strip width or a
close circuit for detergent wet rolling.
To achieve this new challenge, levelling
equipment must be able to run with high
tension without cassette bending even for
wide dimensions. The tension leveller
equipment is to be designed for a strip tension
up to 100 t for either dry or wet rolling
with a hydraulic or electrical cassette
adjustment.
Fives has developed the DMS StripLeveler
(figure 5) which features an elongation
system made of two dual-bending units
that eliminate flatness defects on the strip
through a slight elongation of 1-2%. The
thin cassettes braced by a large supporting
frame provide maximum stiffness, which,
coupled with the machine’s advanced control
system, enables a uniform and accurate
elongation across the entire width of
the strip.
Conclusion
Figure 5. DMS StripLeveler cassette (Picture: Fives)
Production of the 3rd generation steel
grades on processing lines needs a global
re-engineering of mechanical equipment
and standards that have been defined in
the past 30 years. Today, the new design
of mechanical equipment enables to
achieve necessary metallurgical requirements
(annealing temperature, cooling
rate, skin-pass elongation), to thread the
line and to transport the strip along the processing
line without damaging it to produce
advanced high strength steels.
News brief
ArcelorMittal Long Products Canada acquires Legault Métal
Through the acquisition of Legault Métal
Inc., ArcelorMittal Long Products has
extended its presence in the Quebec
scrap recycling market.
Legault Métal will continue to deliver
its services to scrap dealers and individuals
under the same name as a division
of ArcelorMittal. “As the largest
recycler of scrap for local use in Quebec,
we are further securing our supply
of raw materials from this region and
strengthening our value chain,” says
François Perras, chief executive officer
of ArcelorMittal Long Products Canada.
Gerry Legault will support the ArcelorMittal
Long Products Canada team to
ensure a smooth transition of operations
over the coming months. The approximately
100 people who are currently
working for Legault Métal remain
employed by the company as of the
transaction date.
• ArcelorMittal Long Products Canada
STEEL + TECHNOLOGY 1 (2019) No. 4