Control method of oppositely cutting material board shape quality

Abstract

The invention discloses a control method of oppositely cutting material board shape quality. The control method of the oppositely cutting material board shape quality comprises rip cutting and oppositely cutting, stretching-bending correction, and packaging. According to the control method of the oppositely cutting material board shape quality, more specific requirements are raised to rip cutting and stretching-bending correction, and an oppositely cutting finished product is finally produced in a stretching-bending correction line. Although the thickness of stretching-bending correction is not changed, the width of stretching-bending correction is 50 millimeters narrower than half of an original strip. When a narrow material finished product is produced, the capacity of a stretching-bending correction device can fully satisfy. Finally, strip board shape is obviously improved, wave height is controlled within 1 millimeter, and user requirements are fully satisfied. When an oppositely cutting semi-finished product is produced, the influences, caused by limitation of the capacity of the stretching-bending correction device, from the material width and the material thickness are eliminated. Finally, cutting material board shape quality is improved.

Description

technical field [0001] The invention relates to a cold rolling process, more specifically, to a method for controlling the quality of a cut-off plate. Background technique [0002] The half-section material with a thickness ≥0.7mm is mainly used for decoration, so the quality requirements for the aluminum base material are very high, especially the shape quality of the base material. The stretch bending line of the finishing process is: stretch straightening-slitting and splitting-packaging. When stretching and straightening according to this process to produce thick material semi-finished products (thickness ≥ 0.7mm), due to the limited capacity of stretching and straightening equipment, the motor load of each roller system has reached the maximum value, but the extension still cannot reach the set value, and sometimes there will be The abnormal vibration of the machine train is finally manifested in the fact that the plate shape is not leveled. After longitudinally cuttin...

AI Technical Summary

Problems solved by technology

When stretching and straightening according to this process to produce thick material semi-finished products (thickness ≥ 0.7mm), due to the limited capacity of stretching and straightening equipment, the motor load of each roller system has reached the maximum value, but the extension still cannot reach the set value, and sometimes there will be The abnormal vibration of the machine train is finally manifested in the fact that the plate shape is not leveled. After longitudinally cutting and bisecting, the wave height of the strip is 3-5mm. The equipment that cannot meet the needs of users is not enough, and the strip cannot be effectively leveled when producing semi-finished products. As a result, the shape of the plate after slitting in half still cannot meet the user's needs, which affects the user's use