Aluminum alloy sheet for wine cover material and production method of aluminum alloy sheet

Abstract

The invention discloses an aluminum alloy sheet for a wine cover material and a production method of the aluminum alloy sheet. The aluminum alloy sheet for the wine cover material comprises the following components in percentage by weight: 0.63-0.68 percent of silicon, 0.72-0.77 percent of iron, 0.005-0.04 percent of copper, 0.01-0.04 percent of manganese, 0.015-0.05 percent of magnesium, 0.005-0.05 percent of chromium, 0.005-0.05 percent of zinc, 0.025-0.035 percent of titanium and the balance of aluminum. The production method comprises the following steps: smelting, casting, milling, soaking, performing hot rough rolling, performing hot finish rolling, and performing cold rolling, thereby obtaining the aluminum alloy sheet for the wine cover material which is uniform and fine in grains, balanced in deformation texture and recrystallization texture, good in deep drawability and stable in performance and has high mechanical processability. The earing ratio is greatly reduced, the yield of the wine cover during punch forming is improved, the production cost is reduced, and the aluminum alloy sheet has obvious economic benefits.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to an aluminum alloy sheet for wine cap material and a production method thereof. Background technique [0002] As a medium-strength alloy, 8011 aluminum alloy is widely used in packaging, building materials, electronic products and other fields. Among them, as a material for making wine lids is also one of its regular uses. However, the plane anisotropy of the existing 8011 aluminum alloy thin plate used for wine lid materials is large, and earing is prone to occur during the deep drawing process, and the earing rate is as high as 3% to 8%. Such a high ear-making rate not only leads to a high waste rate and rough surface of wine caps, but also waste products need to be re-melted, resulting in environmental pollution. With the advancement of science and technology, people's quality requirements for wine cap materials have been further improved, not only requiring ...

AI Technical Summary

Problems solved by technology

However, the plane of the 8011 aluminum alloy thin plate used for the existing wine cover material has a large anisotropy, and earing is prone to occur during the deep drawing process, and the earing rate is as high as 3% to 8%.

Such a high ear-making rate not only leads to a high waste rate and rough surface of wine caps, but also waste products need to be re-melted, resulting in environmental pollution