Short-process rolling method for cold-rolled 5182 alloy tank cover material

Abstract

The invention provides a short-process rolling method for a cold-rolled 5182 alloy tank cover material, and solves the problems that cold rolling is divided into six passes, and each pass is drifted, so that in the rolling process, the consumed time is long, the working efficiency is low, the number of times on a machine is increased and the probability of generation of bumping defects is also increased. The method comprises the following steps of: 1, single-stand cogging, wherein the thickness of a plate subjected to single-stand cold rolling is converted from 2.8 mm to 1.38 mm; 2, double-stand edge trimming, wherein the thickness of the plate subjected to double-stand cold rolling is converted from 1.38 mm to 0.76 mm and then converted to 0.46 mm, then the plate subjected to cold rolling is cooled to the rolling temperature of 60 DEG C and then is transferred to a finishing edge trimmer, and the edges of the plate are cut by 20 mm separately; 3, single-stand cold rolling, wherein the thickness of the plate subjected to single-stand cold rolling is converted from 0.46 mm to 0.3 mm; and 4, single-rack cold rolling, wherein the plate treated in the step 3 is transferred to a single stand to be subjected to finished product cold rolling treatment, and cold rolling is conducted on the plate through the single stand. The method is simple in structure and has extremely high universality.

Description

technical field [0001] The invention relates to the technical field of metal rolling, in particular to a short-flow rolling method for cold-rolling 5182 alloy can lid materials. Background technique [0002] The 5182 alloy used for the can lid material is an early alloy that was finalized in the late 1920s. At present, the 5182 aluminum alloy can lid material is suitable for a wide range of lid types. It can be used to make SOT and RPT.FA lids of 200-209 lid types. The thickness is mostly 0.216~0.275mm. It can be used for beverage lids and food without or with internal pressure cover. In the production of cans, it is the goal of the lid industry to minimize the thickness of the sheet, improve the elongation and strength of the product, improve the utilization of materials, and reduce production costs. At present, the thickness of 5182 alloy tank cover material is mostly 0.208mm, 0.216mm, 0.218mm, 0.22mm, 0.224mm, 0.238mm, 0.24mm, 0.244mm, 0.25mm, 0.26mm, 0.27mm, 0.275mm. ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a short-process rolling method of cold-rolled 5182 alloy can lid material, which effectively solves the problem of six-pass rolling of aluminum alloy in cold rolling, and the flickering of each pass , in the rolling process, it not only takes a long time and has low work efficiency, but also increases the number of times on the machine, which also increases the probability of bruising defects; Material waste also reduces the problem of product yield

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