Using method of high-speed steel roll on Steckel mill

Abstract

The invention provides a using method of a high-speed steel roll on a Steckel mill. The using method of the high-speed steel roll on the Steckel mill comprises the following steps: using the high-speed steel roll as a working roll of the Steckel mill and cooling the high-speed steel roll with cooling water, wherein the lower limit temperature of the high-speed steel roll is 65-70DEG C; the initial convexity of the high-speed steel roll is negative 300 to negative 200[mu]m; lubricating by adopting an oil-water mixed spray method; adopting a different-step roll shifting strategy. The using method of the high-speed steel roll on the Steckel mill has the advantages that the normal use of the high-speed steel roll on the Steckel mill is realized, the problems of high points and thinning at edge parts caused by roll wear are reduced and the pattern of band steel is good; the over-thick length of the head and the tail of the band steel is reduced, and the surface roughness and the glossiness of the band steel rolled by the high-speed steel roll are also greatly improved.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a method for using finish-rolled high-speed steel rolls in a steel-steel rolling mill, that is, a method for using high-speed steel rolls on a steel-steel rolling machine. Background technique [0002] Steckel mills are now more and more common in hot rolling. However, the working environment of the work rolls of the steckel mill is harsh, the temperature of the roll surface fluctuates greatly, and the high rolling force easily leads to serious wear of the work rolls. Especially the severe wear of the work roll edge due to the low temperature of the edge of the strip, the increased deformation resistance of the metal, the lateral flow of the metal at the edge of the strip, and the cutting action of the edge of the strip on the roll. Generally, the wear area of ​​the work roll is divided into the uniform wear area in the middle and the severe wear area at the edge, such as figure 1 sho...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for using high-speed steel rolls on a steel-steel rolling mill to solve product quality problems caused by using ordinary rolls on a steel-steel rolling mill

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