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Aluminium foil base material producing process

A production method and technology of substrates, applied in furnace types, other manufacturing equipment/tools, furnaces, etc., can solve the problems of poor surface quality, many pinholes in aluminum foil, poor rolling performance, etc., and achieve good rolling performance and The effect of surface quality and pinhole reduction

Active Publication Date: 2007-11-07
CHINALCO RUIMIN
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AI Technical Summary

Problems solved by technology

[0002] As a common metal material, aluminum foil is widely used in various occasions, such as various cigarette foils, aluminum foil for milk packaging, gold card foil, etc. However, all kinds of aluminum foils currently on the market have the following shortcomings: poor rolling performance, poor surface quality, and many pinholes in the aluminum foil

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0010] The 1235 alloy containing 0.40% iron and 0.10% silicon is selected as the raw material for the production of aluminum foil substrates, and the production steps are as follows:

[0011] ① Add the above-mentioned 1235 alloy into the melting furnace to melt into a melt;

[0012] ② hot rolling the above melt into a billet with a thickness of 7.0 mm using a twin-roller casting and rolling machine;

[0013] ③ After cold-rolling the billet obtained by hot rolling to 3.8mm, perform a high-temperature homogenization annealing. During annealing, the metal temperature should reach 550°C, and the metal temperature should be kept for 4 hours;

[0014] ④ After the uniform annealed strip is cold-rolled to 0.65mm, recrystallization annealing is carried out again. During annealing, the metal temperature should reach 320°C, and the metal material temperature should be kept for 4 hours;

[0015] ⑤ Cold-roll the strip after recrystallization annealing to 0.35mm, and deliver it after stret...

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Abstract

The aluminum foil base material producing process includes the following steps: smelting aluminum alloy in a smelting furnace, casting and rolling in a double roller continuous casting and rolling to produce blank material of 5.0-10.0 mm thickness, cold rolling, heat treatment, finishing, etc. The aluminum foil base material thus produced has excellent rolling performance, high surface quality, excellent internal structure, well dispersed intermetallic compound, and capacity of being rolled to thickness smaller than 0.01 mm while maintaining less pin holes.

Description

technical field [0001] The invention relates to a production method of an aluminum foil base material. Background technique [0002] As a common metal material, aluminum foil is widely used in various occasions, such as various cigarette foils, aluminum foil for milk packaging, gold card foil, etc. However, all kinds of aluminum foils currently on the market have the following deficiencies: rolling The manufacturing performance is poor, the surface quality is not up to standard, and the aluminum foil has many pinholes. Contents of the invention [0003] The purpose of the present invention is to provide a production method of aluminum foil substrate, the aluminum foil produced by the method has less pinholes and good surface quality. [0004] A production method of an aluminum foil base material of the present invention is characterized in that it is carried out in accordance with the following steps: a production method of an aluminum foil base material is characterized ...

Claims

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Application Information

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IPC IPC(8): B23P23/04B21B1/40C22C21/00C22C1/00C21D9/46C21D11/00
Inventor 黄瑞银司开田朱明志庄越秀
Owner CHINALCO RUIMIN
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