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Container foil material and method for manufacturing container foil

A manufacturing method and container technology, applied in the direction of metal rolling, etc., can solve the problems of soft performance, insufficient punching depth, large loss, etc., and achieve the effects of good processing performance, good punching performance, and increased strength

Inactive Publication Date: 2012-04-11
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The container foil produced by 3003 alloy has good punching performance, but because the content of Mn element in the alloy is too high, the grains are easy to grow during homogenization annealing, and the thickness of the finished product (0.03~0.08mm) ), coarse grain stripes will inevitably appear on the surface, which will affect the normal use of customers; A large amount of copper and manganese metals need to be added, which increases the production cost of the enterprise
[0003] Although the aluminum foil for tableware produced by 8011 alloy can overcome some shortcomings of 3003 alloy, because the content of alloy elements in 8011 alloy is low, but its performance is soft, it is not suitable for high-speed punching, and the punching depth is insufficient, and its application range is limited. very restrictive

Method used

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Embodiment Construction

[0011] The manufacturing embodiment of container foil of the present invention is as follows:

[0012] 1. Melting

[0013] The smelting must be degassed and slag removed cleanly, and the electromagnetic stirring technology is used to fully stir the melt to ensure uniform composition; the temperature of the entire smelting process must be controlled below 770 ° C, and the temperature of the furnace is controlled at 750 ± 5 ℃; alloy composition: Si 0.25%, Fe 0.44%, Cu 0.05%, Mn 0.20%, Mg 0.01%, Zn 0.1%, Ti 0.04%, Al balance.

[0014] 2. Casting and rolling

[0015] During casting and rolling production, the rotary blowing method is used for online degassing, and the melt is purified by 30PPi+50PPi plate-type double-stage filtration to ensure that the hydrogen content in the melt is ≤0.15ml / 100g.Al, and the modifier must be aluminum titanium Boron wire Al-5Ti-0.2B wire, and strictly control the feeding speed of the modifier according to the ratio of 0.2%. Small casting and rol...

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Abstract

The invention relates to a manufacture method of an aluminum alloy material, concretely relates to a container foil material and a method for manufacturing a container foil. The alloy of the container foil material comprises the following compositions by weight percentage: 0.20-0.26% of Si, 0.42-0.50% of Fe, 0.05% of Cu, 0.15-0.20% of Mn, 0.01% of Mg, 0.1% of Zn, 0.04% of Ti and the balance of Al. According to the invention, the content of Fe and Si are re-allocated by the material on the basis of a 8011 alloy, and certain Mn element is added, so that the material intensity can be raised, and the material has good processing performance and is easy to roll. The detection of the material shows that the when aluminum foil thickness is 0.05-0.06mm, the tensile strength is 120-160MPa, the elongation percentage is greater than or equal to 12% and the cupping value is greater than or equal to 5.0. The material of the invention has good punching performance, and can be used for producing various aviation tableware.

Description

technical field [0001] The invention relates to the manufacture of aluminum alloy materials, in particular to a container foil material and a method for manufacturing the container foil. Background technique [0002] At present, the alloys used to produce container foils on the market are generally 3003 alloys or 8011 alloys. The container foil produced by 3003 alloy has good punching performance, but because the content of Mn element in the alloy is too high, the grains are easy to grow during homogenization annealing, and the thickness of the finished product (0.03~0.08mm) ), coarse grain stripes will inevitably appear on the surface, which will affect the normal use of customers; A large amount of copper and manganese metals need to be added, which increases the production cost of the enterprise. [0003] Although the aluminum foil for tableware produced by 8011 alloy can overcome some shortcomings of 3003 alloy, because the content of alloy elements in 8011 alloy is lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00B21B1/40
Inventor 董则防张莉黎勇
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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