Cold-rolled Sheets

Cold-rolled Sheets

Cold-rolled sheets are fabricated by processing hot-rolled coils at room temperature and below the recrystallization temperature. This rolling process significantly enhances the surface quality and dimensional precision of the steel. The superior mechanical and process properties of cold-rolled sheets to those of hot-rolled sheets are attributed to the absence of iron oxide scale during the cold rolling process. Additionally, after annealing, the structure and performance of cold-rolled sheets are optimized. Primarily fabricated with low carbon steel, our cold-rolled sheets exhibit excellent cold bending, welding, and stamping properties.

The cold rolling line is mainly used for processing and producing metal products including thin sheets, strips, or those of other shapes. About our cold rolling lines:

Key Specifications and Applications:

It is suitable for the automated dry planishing and production of steel strips, copper strips, aluminum strips, and others.

The strip steel width ranges from 200 to 380 mm, with a billet thickness ranging from 0.2 to 1.2 mm, elongation ≤3%, and a planishing speed of ≤300 m/min.

Process Flow:

Shearing Butt Welding Machine → Entry S-Roll → Entry Anti-crossbreak Roll → Four-Roller Planishing Mill → Exit Anti-crossbreak Roll → Exit S-Roll → Coiler.

Key Components:

S-rolls, anti-crossbreak rolls, and anti-bounce rolls are installed in the front and back end of the equipment, and automatic threading and user-friendly operation are available.

Functions:

Automatic control is implemented over elongation, rolling force, roll gap, and tension during the rolling process.

Strip steel shape, elongation, rolling force, roll gap, tension, current, temperature, and pressure parameters are automatically displayed, and manual shape adjustment is supported during rolling.

Mill roll gaps are adjusted and leveled manually facilitated by hydraulic AGC control.

The fully digital AC variable frequency speed control system ensures automatic control of rolling speed in the unit.

Production Strength

Founded in April 2011, we specialize in the production, processing and sales of special high-strength sheets and hot-dip aluminum-zinc-silicon steel sheets in an area of about 180,000 square meters. Our main products include cold-rolled sheets, pickled sheets, aluminum-zinc-silicon-coated sheets, and galvanized sheets. We produce these products with one pickling line, two 1,150 mm unit cold rolling lines, and four galvanizing lines with an annual output of 350,000 tons. We operate with several functional departments such as the General Manager’s Office, the Sales Department, the Quality Control Department, the Finance Department, the Production Department, the Supply Department, the Marketing Department, and the Logistics Department. Among our 270-plus employees, 48 are skilled technical engineers and 56 hold a college degree and above.