Method for preparing cold-rolled titanium roll with high surface roughness

Abstract

The invention provides a method for preparing a cold-rolled titanium roll with high surface roughness. The method comprises the steps that a raw material titanium roll is rolled on a cold-rolling millthrough a cold-rolling working roller first, so that the raw material titanium roll is rolled to a target thickness, and a thickness allowance is reserved; the rolled raw material titanium roll is subjected to degreasing treatment and cover annealing, so that a non-roughened titanium roll is obtained; then, the non-roughened titanium roll is subjected to roughening rolling through a laser roughening roller, wherein the unit tension for roughening rolling is controlled to 2.5kg / mm<2>-10.5kg / mm<2>; an emulsion is added in the roughening rolling process, wherein the rolling force and the flow ofthe emulsion are controlled according to the yield strength of the titanium roll; the non-roughened titanium roll is rolled to a target thickness through 1-3 passes of rolling, so that a roughened titanium roll is obtained, wherein the adopted laser roughening roller is a roughening roller obtained after the cold-rolling working roller is subjected to disordered laser roughening treatment; and the roughened titanium roller is subjected to degreasing treatment, so that the cold-rolled titanium roll with the surface roughness of 1-3 [mu]m is obtained. By adoption of the method, the cold-rolledtitanium roll with high surface roughness can be directly obtained when a titanium roll is rolled, and actual production requirements can be met.

Description

technical field [0001] The invention relates to the field of preparation of cold-rolled titanium coils, in particular to a method for preparing cold-rolled titanium coils with high surface roughness. Background technique [0002] The elastic modulus of titanium metal is low, and the degree of work hardening is high, which makes the springback of titanium coil stronger after rolling, and the cold rolling process is more difficult. Roll surface friction is also greater. In order to reduce rolling force and friction, low-roughness cold-rolled work rolls are generally used for rolling. The surface roughness of cold-rolled work rolls is generally less than or equal to 0.3 μm, and the surface roughness of titanium coils after rolling is generally less than or equal to 0.6 μm, however, in some special fields, such as some special battery plates and some stamping plates that require high surface lubrication, it is necessary to use cold-rolled titanium plates with high surface rough...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the prior art that it is difficult to directly obtain high surface roughness cold-rolled titanium coils when rolling titanium coils, the present invention provides a preparation method for high surface roughness cold-rolled titanium coils