A method for adjusting a six-roll cold rolling mill and the six-roll cold rolling mill

Abstract

The embodiment of the invention discloses an adjustment method of a six-high cold rolling mill and the six-high cold rolling mill. Since the adjustment scheme of two sets of intermediate rolls of a set of six-high cold rolling mill is used, the narrower strip steel can be rolled At the same time, the intermediate roll adopts the roll shape of asymmetric stepped roll, which not only ensures the roll gap stiffness of the six-high cold rolling mill, but also eliminates the "harmful contact area"; when rolling a wider strip, the intermediate roll adopts five The variable crown roll shape in the form of subpolynomial ensures that the six-high cold rolling mill has a large crown adjustment area when rolling wide strip steel, and meets the crown control requirements for wide strip steel.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to an adjustment method of a six-roll cold rolling mill and the six-roll cold rolling mill. Background technique [0002] The six-high cold rolling mill mainly includes CVC (Continuously variable crown, continuously variable crown) cold rolling mill and UCM (Universal Crown Middle, universal crown control) cold rolling mill. The distribution of contact pressure between rolls and the elimination of harmful contact areas between rolls have received more and more attention in the field of metallurgy. [0003] Please refer to Figure 1A-Figure 1C , Figure 1A-Figure 1C It is the schematic diagram of the variable crown of the middle roll of the six-high CVC cold rolling mill in the prior art, Figure 1A It is a schematic diagram of a CVC cold rolling mill showing a conventional crown, such as Figure 1A As shown, when the roll shifting amount of the intermediate roll is 0, the controlled crow...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an adjustment method of a six-high cold rolling mill and a six-high cold rolling mill to solve the problem of the crown control ability of the six-high CVC cold rolling mill in the prior art when rolling a narrow strip. Insufficient technical problems, and the narrow range of rollable width of the six-high UCM cold rolling mill

Images