A kind of production method of double zero aluminum foil

A technology of double-zero aluminum foil and production method, applied in metal rolling and other directions, can solve the problems of high coloring and printing costs, unstable product quality, etc., and achieve product performance improvement, guarantee processing production efficiency, and high rolling speed. Effect

Active Publication Date: 2016-03-30
LUOYANG WANJI ALUMINUM PROCESSING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process improves the surface of the double-zero aluminum foil, but there are still obvious stripes and black spots, the cost of subsequent coloring and printing is high, and the quality of the product is unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of production method of double-zero aluminum foil, thickness is 0.006mm, and its specific operation steps are as follows:

[0020] A production method of double-zero aluminum foil. After degassing and deslagging the AA1235 aluminum alloy melt, it is cast-rolled into a cast-rolled coil with a thickness of 6.5-8.0 mm, and then the cast-rolled coil is rolled into a thickness of 6.5-8.0 mm by the first cold rolling. The aluminum coil is 2.0-3.0mm, and then the aluminum coil after the first cold rolling is subjected to the first heat treatment at a temperature of 450-550°C for 15-20 hours, and then the aluminum coil after the first heat treatment is subjected to The second cold rolling is rolled into an aluminum coil with a thickness of 0.6-0.8mm, and the aluminum coil after the second cold rolling is subjected to a second heat treatment at a temperature of 300-380° C. for 6-12 hours; The aluminum coil after the second heat treatment is rolled into an aluminum coil wi...

Embodiment 2

[0022] A production method of double-zero aluminum foil, the thickness of which is 0.007mm, and its specific operation steps are as follows:

[0023] A production method of double-zero aluminum foil. After degassing and deslagging the molten aluminum alloy, it is cast-rolled into a cast-rolled coil with a thickness of 6.5-8.0 mm, and then the cast-rolled coil is rolled into a thickness of 6.5-8.0 mm by the first cold rolling. 2.0mm aluminum coil, then the aluminum coil after the first cold rolling is subjected to the first heat treatment at a temperature of 450°C for 15 hours, and then the aluminum coil after the first heat treatment is subjected to the second cold rolling into an aluminum coil with a thickness of 0.6mm, and conduct a second heat treatment on the aluminum coil after the second cold rolling at a temperature of 300° C. for 6 hours; Rolling into an aluminum coil with a thickness of 0.05mm, then place the aluminum coil in a heat treatment device, and heat it to th...

Embodiment 3

[0025] A production method of double-zero aluminum foil, the thickness of which is 0.009mm, and its specific operation steps are as follows:

[0026] A production method of double-zero aluminum foil. After degassing and deslagging the molten aluminum alloy, it is cast-rolled into a cast-rolled coil with a thickness of 6.5-8.0 mm, and then the cast-rolled coil is rolled into a thickness of 6.5-8.0 mm by the first cold rolling. 2.5mm aluminum coil, then the aluminum coil after the first cold rolling is subjected to the first heat treatment at a temperature of 500°C for 18 hours, and then the aluminum coil after the first heat treatment is subjected to the second cold rolling into an aluminum coil with a thickness of 0.7mm, and conduct a second heat treatment on the aluminum coil after the second cold rolling at a temperature of 360° C. for 10 hours; Roll the aluminum coil to a thickness of 0.08mm, then place the aluminum coil in a heat treatment device, and heat it to the critic...

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Abstract

A production method of double-zero aluminum foil. After degassing and deslagging the molten aluminum alloy, it is cast-rolled into a cast-rolled coil with a thickness of 6.5-8.0 mm, and then the cast-rolled coil is rolled into a thickness of 6.5-8.0 mm by the first cold rolling. 2.0-3.0mm aluminum coil, and then the aluminum coil after the first cold rolling is subjected to the first heat treatment at a temperature of 450-550 ° C for 15-20 hours, and then the aluminum coil after the first heat treatment is subjected to the second heat treatment The second cold rolling is rolled into an aluminum coil with a thickness of 0.6-0.8mm, and the aluminum coil after the second cold rolling is subjected to a second heat treatment at a temperature of 300-380° C. for 6-12 hours; The aluminum coil after the second heat treatment is rolled into an aluminum coil with a thickness of 0.05-0.1mm by the third cold rolling, and then the aluminum coil is heated to the recrystallization critical temperature of the aluminum foil at 250-310°C for 5-10 hours, and then the aluminum foil is The fourth cold rolling is rolled into double-zero aluminum foil of 0.006-0.009mm; the double-zero aluminum foil produced by the present invention has a tensile strength greater than 95Mpa, an elongation greater than 3.1%, a small grain size of the blank, and very few surface stripes. The number of pinholes is small and the quality is stable.

Description

technical field [0001] The invention relates to aluminum foil processing technology, in particular to a production method of double-zero aluminum foil. Background technique [0002] At present, double-zero aluminum foil is mainly used in the packaging field, such as aluminum foil for flexible packaging, aluminum foil for cigarettes, and aluminum foil for cardboard. However, except that the aluminum foil for soft packaging does not need to be printed on the surface of the aluminum foil, the aluminum foil for cigarette cardboard and the aluminum foil for gold cardboard need to be printed on the surface of the aluminum foil after applying color paste. At this time, the surface quality of the aluminum foil is fine, the surface stripes are small and Less color paste needs to be coated, and the effect after printing is better, and vice versa. If there are many and large stripes on the surface of the aluminum foil, thicker color paste needs to be applied to obtain a good printing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06C22F1/04B21B1/40
Inventor 郭峰张广斌钱志恒吴俊刘全贵
Owner LUOYANG WANJI ALUMINUM PROCESSING CO LTD
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