UCM six-roller mill

Abstract

The invention relates to the technical field of cold rolling mills and provides a UCM six-roller mill. The UCM six-roller mill comprises fixed rollers, intermediate rollers and work rollers which are arranged in sequence from top to bottom, wherein a chamfer is arranged at an end part of each work roller; the conicity width of the chamber at the end part of the work roller is 20 mm to 50mm; the conicity height of the chamber is 20 microns to 80 microns. By adoption of the technical scheme, the UCM six-roller mill has the advantages and benefits as follows: the plate crown of non-oriented silicon steel produced by the normal six-roller mill can be controlled at 0.08 mm approximately, the ratio of first-grade products of cold-rolled silicon steel can be increased by 50%, the thickness of edge parts in edge part thinning areas is reduced to 15mm from 20 mm, edge cutting amount of finished products is reduced by 5 mm, and the material yield is increased by 1% approximately.

Description

technical field [0001] The invention belongs to the technical field of cold rolling mills, in particular to a UCM six-high rolling mill. Background technique [0002] Most of the cold-rolled non-oriented silicon steel is produced by 20-high rolling mill and UCMW six-high rolling mill. After rolling, the plate convexity is about 0.010mm or less, and the edge thinning area is about 10mm. However, the convexity of non-oriented silicon steel produced by four-high or UCM six-high rolling mill is about 0.015 mm, and the edge thinning area is about 20 mm. Because the convexity of the plate affects the stacking coefficient of the silicon steel sheet, it is a very important index of cold-rolled silicon steel, and the edge thinning involves the edge loss when the steel strip is trimmed. [0003] In the existing technology, the equipment cost of 20-high rolling mill and UCMW six-high rolling mill is relatively high, while the plate convexity of non-oriented silicon steel produced by f...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the equipment cost of 20-high rolling mill and UCMW six-high rolling mill is relatively high, while the plate convexity of non-oriented silicon steel produced by using four-high or UCM six-high rolling mill is about 0.015mm, and the edge thinning area At about 20mm, the edge loss is relatively large when the steel strip is trimmed, the yield is low, and the production cost is increased.

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