Work roll shifting method used for hot rolled strip steel same-width rolling conditions

Abstract

The invention discloses a work roll shifting method used for hot rolled strip steel same-width rolling conditions. The frequency of contact between the middle of a roll body of a work roll and strip steel is reduced, the frequency of contact between the edge portion of the work roll and the strip steel is increased, accordingly, the advantage of the length of the roll body of the work roll is fully utilized, abrasion of the middle of the work roll is scattered, abrasion of the work roll is uniform and is relieved to a larger extent, and the ability of the roll shape of the work roll to adjustthe plate shape in the service period is better maintained.

Description

technical field [0001] The invention belongs to the field of hot rolling production of plate and strip steel. Under the condition of hot rolling of strip steel with the same width, the roll shifting method of the work roll can reduce the wear of the work roll, make the wear of the work roll uniform, and can better maintain the shape adjustment ability of the original roll shape. Background technique [0002] Work roll shifting is the lateral movement of the work rolls. The purpose of roll shifting is to make the wear of the work rolls uniform. The variable crown work rolls can also adjust the roll gap crown through roll shifting, so as to realize the control of the strip shape. Every time a piece of steel strip is rolled, the work roll moves laterally for a certain distance, which is called the roll shifting step. The distance between the work roll shifting from the rolling center line to the extreme position is called the stroke. The working roll adopts the reciprocating ...

AI Technical Summary

Problems solved by technology

Using the above-mentioned roll shifting method, under the rolling conditions of the same width, the wear of the work rolls is more serious, and the uneven wear is prominent, which affects the ability of the work rolls to adjust the shape of the plate.

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