Aluminum alloy material and manufacturing method for dual-zero aluminium foils

Abstract

The invention belongs to an aluminum alloy material and manufacture technology of aluminum foils, in particular to an aluminum alloy material and a manufacturing method for dual-zero aluminium foils. The aluminum alloy material comprises the following components in percentage by weight: 0.2 to 0.35 percent of Si, 0.70 to 0.90 percent of Fe, 0.10 percent of Cu, 0.05 percent of Mn, 0.05 percent of Mg, 0.05 percent of Cr, 0.10 percent of Zn, 0.05 percent of Ti, and the balance of Al; and the components are smelted into an alloy. The manufacturing method orderly comprises the following steps: smelting the components into the alloy; carrying out casting and rolling on the alloy; carrying out cold rolling, intermediate annealing and second cold rolling on the rolled alloy; carrying out aluminum foil rolling; and carrying out final annealing on the finished product. The dual-zero aluminium foil product prepared from the materials by the method integrates the respective advantages of an alloy 1235 and an alloy 8011, has a few pinhole, high surface quality and good rolling stability, and can effectively improve the production efficiency and finished product ratio. The finished product quality and the rolling performance can be comparable with those of the hot-rolled aluminum-foil sheet.

Description

technical field [0001] The invention belongs to the manufacturing technology of aluminum alloy material and aluminum foil, and relates to a manufacturing method of aluminum alloy material and double-zero aluminum foil. Background technique [0002] At present, the aluminum alloys used in the market to produce double zero foils with a thickness of less than 0.01mm are generally 1235 and 8011 alloys. The use of 1235 alloy to produce double-zero foil has the advantages of good surface quality and fewer pinholes in the aluminum foil, but due to the low alloy content and soft strength, it leads to poor rolling performance, resulting in problems such as low production efficiency and yield; while using 8011 When the alloy is used to produce double-zero foil, although the strength is high and the rolling stability is good, due to the characteristics of the alloy itself, the number of pinholes often exceeds the standard, which affects the use of aluminum foil. Contents of the inven...

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Problems solved by technology

The use of 1235 alloy to produce double-zero foil has the advantages of good surface quality and fewer pinholes in the aluminum foil, but due to the low alloy content and soft strength, it leads to poor rolling performance, resulting in problems such as low production efficiency and yield; while using 8011 When the alloy is used to produce double-zero foil, although the strength is high and the rolling stability is good, due to the characteristics of the alloy itself, the number of pinholes often exceeds the standard, which affects the use of aluminum foil