Method for forming variable crown working (VCW) roll shape for strip steel plate shape control

Abstract

The invention relates to a method for forming a variable crown working (VCW) roll shape for strip steel plate shape control, which is characterized in that a VCW roll shape curve of the VCW roll shape comprises a main carrying area, a transition area and a pressure reduction abutting area, wherein the main carrying area is defined in the strip steel width range of [-B / 2, B / 2], and B is maximal plate width; the transition area is in a range of [-LB / 2, -B / 2] and [B / 2, LB / 2] from the side of a support roll to the side of strip steel, and the roll diameter of the a transition area is smaller thanthat of the main carrying area; and the pressure abutting reduction area is in a range of [-LW / 2, -LB / 2] and [LB / 2, LW / 2] from the side of the working roll to the side of the support roll. The working roll of which the shaped needs to be formed by the method of the invention is just ground into the corresponding shape in a roll grinding workshop, and the invention has the advantages of convenientprocessing and low cost, can be conveniently popularized to a VC planishing mill, is suitable for producing a refrigerator plate with specific specification and has wide application prospect.

Description

technical field [0001] The present invention relates to a manufacturing method of a strip steel plate, in particular, the present invention relates to a method for controlling the shape of a strip steel plate during manufacture, and more specifically, the present invention relates to a crown control method for strip steel plate shape control Method for forming variable work roll (VCW) roll shape. Background technique [0002] As one of the most important products of the steel industry, steel strip materials play a very important role in the development of the national economy. It is widely used in industry, agriculture, national defense and daily life. With the improvement of users' requirements for product quality, there is still a certain gap between the actual quality of domestic strip steel plates and the international advanced level. For example, for the production of steel plate materials such as home appliance refrigerator boards, it is necessary to process and manu...

AI Technical Summary

Problems solved by technology

The two factors of high rolling force and low transverse rigidity of the roll system jointly cause the problem of edge waves in the production of refrigerator panels

[0011] According to the above, it can be understood that even if the rolling mill and tempering mill are equipped with advanced strip shape control systems and control means, there are still some types and specifications of strip steel strips that are difficult to control, and the thickness of the final strip in the transverse direction, unevenness, and uniformity Problems such as serious plate deviation and thickness tolerance, as well as limited service life of rolls caused by plate shape defects

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