Aluminum alloy substrate for high-cap bottle cap and production method thereof

The technology of an aluminum alloy base and a production method is applied to the aluminum alloy base material for high-cap bottle caps and the production field thereof, and can solve the problems of low yield of punched bottle caps, poor thermal stability of plates, unstable ear-making rate, and the like. Achieve the effect of reducing the ear rate, improving the punching effect, and improving the performance of the product substrate and baking performance

Inactive Publication Date: 2015-04-22
CHINALCO SWA COLD ROLLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current production of 8011 aluminum alloy bottle cap materials in H16 / H14 state has the problems of poor thermal stability, low tensile strength and unstable ear making rate when punching high bottle caps with a height of more than 50mm. , leading to low yield and poor formability of punched bottle caps

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The aluminum alloy base material for high cap bottle caps in this embodiment has the following alloy components and weight percentages: Si: 0.4%; Fe: 0.9%; Cu: 0.03%; Mn: 0.1%; Mg: 0.02%; Zn: ≤0.05%; Cr: 0.05%; Ti: 0.03%; impurities: 0.10%; the balance is Al. And among the impurities, the weight percentage content of a single impurity is ≤0.05%.

[0024] The production method of the aluminum alloy base material for high cap bottle caps in this embodiment includes: batching→melting and casting→homogenization treatment→hot continuous rolling→cold rolling→heat treatment→cold rolling→stretching, bending and straightening→cutting ;

[0025] In the homogenization treatment process of the present embodiment, the temperature of the homogenization treatment is 550 DEG C, and the holding time is 8h;

[0026] The continuous hot rolling process in this embodiment includes rough hot rolling and finishing hot rolling, and the final rolling thickness of the billet after hot continuo...

Embodiment 2

[0029] The aluminum alloy base material for high cap bottle caps in this embodiment has the following alloy components and weight percentages: Si: 0.6%; Fe: 0.8%; Cu: 0.02%; Mn: 0.05%; Mg: 0.04%; Zn: ≤0.1%; Cr: 0.02%; Ti: 0.01%; impurities: 0.05%; the balance is Al. And among the impurities, the weight percentage content of a single impurity is ≤0.05%.

[0030] The production method of the aluminum alloy base material for high cap bottle caps in this embodiment includes: batching→melting and casting→homogenization treatment→hot continuous rolling→cold rolling→heat treatment→cold rolling→stretching, bending and straightening→cutting ;

[0031] In the homogenization treatment process of the present embodiment, the temperature of the homogenization treatment is 600 DEG C, and the holding time is 6h;

[0032] The continuous hot rolling process in this embodiment includes rough hot rolling and finishing hot rolling, and the final rolling thickness of the billet after hot continuo...

Embodiment 3

[0035] The aluminum alloy base material for high cap bottle caps in this embodiment has the following alloy components and weight percentages: Si: 0.8%; Fe: 0.6%; Cu: 0.04%; Mn: 0.08%; Mg: 0.01%; Zn: ≤0.02%; Cr: 0.01%; Ti: 0.02%; impurities: 0.15%; the balance is Al. And among the impurities, the weight percentage content of a single impurity is ≤0.05%.

[0036] The production method of the aluminum alloy base material for high cap bottle caps in this embodiment includes: batching→melting and casting→homogenization treatment→hot continuous rolling→cold rolling→heat treatment→cold rolling→stretching, bending and straightening→cutting ;

[0037] In the homogenization treatment procedure of the present embodiment, the temperature of homogenization treatment is 580 ℃, and the holding time is 10h;

[0038] The continuous hot rolling process in this embodiment includes rough hot rolling and finishing hot rolling, and the final rolling thickness of the billet after hot continuous r...

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PUM

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Abstract

The invention discloses an aluminum alloy substrate for a high-cap bottle cap. The aluminum alloy substrate comprises, by weight, 0.4 percent to 0.8 percent of Si, 0.6 percent to 0.9 percent of Fe, 0.02 percent to 0.04 percent of Cu, no larger than 0.1 percent of Mn, no larger than 0.05 percent of Mg, no larger than 0.1 percent of Zn, no larger than 0.05 percent of Cr, 0.01 percent to 0.03 percent of Ti, no larger than 0.15 percent of impurities and the balance Al. The invention further discloses a production method of the aluminum alloy substrate for the high-cap bottle cap. The production procedure comprises batching, casting, homogenization treatment, hot continuous rolling, cold rolling, heat treatment, cold rolling, stretching bending and straightening and cropping. In the procedure of homogenization treatment, the temperature of homogenization treatment is 550 DEG C to 600 DEGC, and heat preservation time is 6 h to 10 h; in the procedure of cold rolling, cold rolling is carried out on blanks obtained through the hot continuous rolling procedure till the blanks are 0.4 mm to 0.5 mm, then heat treatment is carried out, the temperature of heat treatment ranges from 300 DEG C to 330 DEG C, heat preservation time ranges from 5 h to 9 h, and discharging cooling is carried out. Finally, cold rolling is carried out the blanks till the designed thickness is achieved.

Description

technical field [0001] The invention relates to an aluminum alloy and a production method thereof, in particular to an aluminum alloy base material for a high cap bottle cap and a production method thereof. Background technique [0002] As a new type of bottle cap sealing material, aluminum alloy bottle cap material is widely used in the sealing packaging of beverage bottles, wine bottles, cosmetic bottles, medicine bottles, etc. 8011 aluminum alloy is the mainstream anti-theft cover material. In its subsequent processing, in addition to good deep drawing performance and low ear making rate, it is also required to have good baking resistance. [0003] The current production of 8011 aluminum alloy bottle cap materials in H16 / H14 state has the problems of poor thermal stability, low tensile strength and unstable ear making rate when punching high bottle caps with a height of more than 50mm. , resulting in low yield and poor formability of punched bottle caps. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/02C22F1/04C22F1/043
CPCC22C21/00C22C21/02C22F1/04C22F1/043
Inventor 张仕强石华敏蔡辉刘钺
Owner CHINALCO SWA COLD ROLLING
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