Adjustment method of six-roll cold rolling mill and six-roll cold rolling mill

Abstract

The embodiment of the invention discloses an adjustment method of a six-roll cold rolling mill and the six-roll cold rolling mill. According to the adjustment scheme of two intermediate rolls of one six-roll cold rolling mill, in the process of rolling narrow strip steel, the roll shape of asymmetric step rolls is adopted for the intermediate rolls, so that the roll gap rigidity of the six-roll cold rolling mill is guaranteed, and a 'harmful contact zone' is eliminated; in the process of rolling wide strip steel, a variable-crown roll shape in a quintic polynomial type is adopted for the intermediate rolls, so that it is guaranteed that the six-roll cold rolling mill has a large crown adjustment area when rolling the wide strip steel, and the requirement for crown control over the wide strip steel is met.

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. distribution, eliminating the harmful contact zone between the rolls, so it has 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 crown of the CVC cold rolling mill is t...

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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

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