The new Hot Dip Galvanizing Line is designed for a total capacity
of 150,000 tpy of finished coils for thin strip with thicknesses from
0.16 to 1.0 mm, and widths up to 1,250 mm. This line guarantees some of
the best parameters on the market for GL zinc coating, producing thin GL
coatings down to 40 g/m2 on each side at 150 m/min. The annealing
furnace in the process section, supplied by Danieli Centro Combustion,
will be equipped with a recuperative room, free flame section, “U-Type”
radiant tube section, and the jet cooling section for CD, DQ and FH
grades. The final zinc thickness will be closely controlled by the X-Jet
Danieli Kohler air wiping system. After passing through the zinc pot to
improve elongation, roughness and flatness, the strip will enter
Danieli’s Q-Surface system (skin-pass and tension leveler). Danieli
Automation will develop and supply the electrical and automation part of
the line.
The new two-stand 4-Hi Cold Reversing Mill is designed to
achieve a total annual production of 400,000 tpy of low-carbon
cold-rolled strip, with a minimum thickness of 0.11 mm and a maximum
width of 1,250 mm. The mill runs on odd and even passes, since it is
equipped with selective roll coolant systems and shapemeter rolls. Three
thickness gauges and laser meters are provided for mass flow control.
The automatic control of cold rolling and the advanced level 2 for the
automation system are developed and supplied by Danieli Automation.
Thanks to the combined use of mechanics and rolling models in the
software, Danieli is able to offer high performance parameters in terms
of thickness tolerance and flatness.
With this project, Danieli
proves once again that it is a world-wide leader in advanced cold
rolling equipment and processing lines.
