A kind of grinding method of cvc roll

Abstract

The invention discloses a grinding method of a CVC roller. The grinding method of the CVC roller comprises the following steps of rough grinding, semi-finish grinding and fine grinding, wherein the rough grinding is carried out, wherein the range of a grinding current value is set to be 40-70 A; finish grinding is carried out, wherein the range of the grinding current value is set to be 20-30 A, moreover, 40%-70% of the grinding current value is adopted when a roller curve is in a descending tendency for grinding, and a gain adjusting parameter is set as the minimum value of equipment; and thefine grinding is carried out, the range of the grinding current value is set to be 10-15 A, moreover, 40%-70% of the grinding current value is adopted when the roller curve is in the descending tendency for the grinding, and the gain adjusting parameter is set as the minimum value of the equipment. According to the method, the grinding method of the CVC roller is provided, by using different methods of grinding current in different areas, the situation that the stress of each grinding area is uneven is effectively counteracted, the stress state of grinding stress is improved, and the generation of grinding lines is restrained; and meanwhile, the grinding efficiency is effectively improved by the method, the production amount of waste materials produced by a plate belt is reduced, the roller changing time is shortened, and the economic benefits of enterprises are improved.

Description

technical field [0001] The invention relates to the technical field of rolling, and more specifically, relates to a grinding method of a CVC roll. Background technique [0002] The CVC rolling mill, that is, the continuous variable rolling mill of the roll crown, processes the roll surface of the work roll or the intermediate roll into an S-shaped bottle-shaped structure, and the two rolls are oriented at 180 to each other on the rolling mill. The direction configuration can move in the opposite direction of the axial direction to form a positive and negative roll gap crown. Because the axial movement distance is stepless, it can form a control effect of continuously changing the roll gap crown. [0003] After the roll is off the machine, the roll curve has the characteristics of being low in the middle and high on both sides, which must be ground off first; at the same time, due to the use of the roll on the machine, there is a mechanical work hardening and fatigue layer on...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a grinding method for CVC rolls, which can effectively solve the problem that the grinding quality of CVC rolls is affected by the tool marks produced by the grinding of CVC rolls.

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