Control method for cold-rolling widthof ferrite stainless steel

• Main Authors: XU MINGMING, LIU SHANGPING
• Format: Patent
• Language: English
• Published: 08.04.2015
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention provides a control method for the cold-rolling widthof ferrite stainless steel. The control method comprises the following steps: performing edge plate shape control by a pair of first middle rolls and a working roll between the pair of first middle rolls, wherein only one end of each first middle roll in the pair of first middle rolls is tapered and forms a taper end; taking the roll change critical value w as a distinguishing point, and for a steel plate with the rolling width of not smaller than w, adopting first taper length and first taper at the taper end of the first middle roll; for a steel plate with the rolling width of smaller than w, adopting second taper length and second taper at the taper end of the first middle roll. According to the control method, the production performance of 400 series stainless steel can be remarkably improved, the casting yield and the quality are normal, and no other accidents such as belt breaking and edge cracking are caused.