Control method for eliminating chromatic aberration defects of secondary cold rolling of 400-series stainless steel

Abstract

The invention discloses a control method for eliminating chromatic aberration defects of secondary cold rolling of 400-series stainless steel, and belongs to the technical field of stainless steel rolling. The first-pass deforming rate is 10-16%; the roughness of a first-pass working roll is 0.5-2.0 mu m; a constant-pressure mode is adopted as a first-pass rolling pressure mode; and a first-pass plate shape curve adopts a structure that two sides are bent upwards, the middle part is horizontal, two sides and the middle part are in smooth transition, and the edge plate shape value is 0-30N / mm<2>. According to the method, the secondary cold rolling color difference defect of the 400-series stainless steel is eliminated, and the surface quality of a 400-series stainless steel cold plate is improved.

Description

technical field

[0001] The invention relates to cold rolling of stainless steel, mainly secondary cold rolling of 400 series stainless steel bright plates, and specifically a method for controlling color difference defects in secondary rolling of 400 series stainless steel. Background technique

[0002] 400 series stainless steel is a special product developed by TISCO. It has the advantages of superior corrosion resistance and high surface quality. It is widely used in high-end decoration industries such as elevators, home appliances, and urban landscapes. The 400-series stainless steel secondary cold-rolled material with high utilization rate and high product added value is sought after by the market, and the demand is increasing year by year. Customers have extremely high requirements on the surface of the product. The quality control level of the manufacturing enterprise poses challenges. The 400 series stainless steel cold plate is rolled by Sendzimir 20-high rolling m...