Material for ring-pull can body

A technology for cans and cans, which is applied in the field of materials for cans and cans, can solve problems such as cuts or surfaces that are prone to corrosion, and achieve the effect of improving the strength of the cans

Active Publication Date: 2016-03-30
天津国科医疗科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, after the material for the can body is stamped and formed, its incision or surface is prone to corrosion. Therefore, how to meet the surface corrosion resistance requirements of the can is also a key to obtain high-quality aluminum alloy can body materials. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The present invention proposes a material for a can body, which includes an aluminum alloy plate and a protective coating coated on the surface of the aluminum alloy plate. The aluminum alloy plate material includes: Mg: 1.0%, Mn: 1.2% by weight %, Cu: 0.20%, Fe: 0.60%, Si: 0.20%, Ni: 0.03%, Zn: 0.03%, Re: 0.03%, the balance is composed of Al and unavoidable impurities;

[0022] The aluminum alloy plate is obtained by homogenizing aluminum alloy ingots, hot rough rolling and hot finish rolling. The homogenization treatment includes: performing high-temperature homogenization treatment on the aluminum alloy ingot in a push-type heating furnace with a cooling device, the high-temperature homogenization temperature is 630° C., and the holding time is 24 hours. The hot rough rolling treatment includes: heating the homogenized aluminum alloy ingot to 460°C in a push-type heating furnace, keeping it warm for 5 hours, and performing rough rolling on a rough rolling mill to obt...

Embodiment 2

[0028] The present invention proposes a material for a pop can body, which includes an aluminum alloy plate and a protective coating coated on the surface of the aluminum alloy plate. The aluminum alloy plate material includes: Mg: 1.5%, Mn: 0.8% by weight %, Cu: 0.30%, Fe: 0.25%, Si: 0.40%, Ni: 0.01%, Zn: 0.05%, Re: 0.01%, the balance is composed of Al and unavoidable impurities;

[0029] The aluminum alloy plate is obtained by homogenizing aluminum alloy ingots, hot rough rolling and hot finish rolling. The homogenization treatment includes: performing high-temperature homogenization treatment on the aluminum alloy ingot in a push-type heating furnace with a cooling device, the high-temperature homogenization temperature is 650° C., and the holding time is 12 hours. The hot rough rolling treatment includes: heating the homogenized aluminum alloy ingot to 510°C in a pusher heating furnace, keeping it warm for 2 hours, and then rough rolling on a rough rolling mill to obtain a...

Embodiment 3

[0035] The present invention proposes a material for a can body, comprising an aluminum alloy plate and a protective coating coated on the surface of the aluminum alloy plate, wherein the aluminum alloy plate material includes: Mg: 1.2%, Mn: 1.1% by weight %, Cu: 0.22%, Fe: 0.50%, Si: 0.26%, Ni: 0.02%, Zn: 0.04%, Re: 0.02%, the balance is composed of Al and unavoidable impurities;

[0036] The aluminum alloy plate is obtained by homogenizing aluminum alloy ingots, hot rough rolling and hot finish rolling. The homogenization treatment includes: performing high-temperature homogenization treatment on the aluminum alloy ingot in a push-type heating furnace with a cooling device, the high-temperature homogenization temperature is 645° C., and the holding time is 15 hours. The hot rough rolling treatment includes: heating the homogenized aluminum alloy ingot to 500°C in a pusher heating furnace, holding it for 3 hours, and then rough rolling it on a rough rolling mill to obtain an ...

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Abstract

The invention discloses a material of a ring-pull can body. The material comprises an aluminum alloy board and a protection coating coated on the surface of the aluminum alloy board. The aluminum alloy board is made of the material prepared from chemical components including, by weight, 1.0-1.5% of Mg, 0.8-1.2% of Mn, 0.20-0.30% of Cu, 0.25-0.60% of Fe, 0.20-0.40% of Si, 0.01-0.03% of Ni, 0.03-0.05% of Zn, 0.01-0.03% of Re, and the balance Al and inevitable impurities. The aluminum alloy board is obtained by conducting homogenization, hot rough rolling and hot finish rolling on an aluminum alloy cast ingot. The protection coating is formed by smearing epoxy resin paint onto the surface of the aluminum alloy board uniformly. The thickness of the coating is 3-5 micrometers.

Description

technical field [0001] The invention relates to the technical field of pop-top can bodies, in particular to a material for pop-top can bodies. Background technique [0002] With the increasingly higher requirements for the thin-walled can body, the traditional aluminum alloy material for the can body tends to form a coarse divorced eutectic crystal phase and segregation of Mn elements during the ingot casting process, and the homogenization Heat treatment technology is an important process to improve the precipitated phase structure. The traditional homogenization heat treatment technology can dissolve the dissociated eutectic crystal phase and the segregation of Mn element to a certain extent, but it cannot completely eliminate the coarse and unevenly distributed precipitated phase. Coarse precipitated phases not only reduce the life of deep drawing dies, but also easily cause defects such as exposed pots and fractures during deep drawing. Therefore, how to make the micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06C22F1/04
CPCC22C21/06C22F1/04
Inventor 李政源
Owner 天津国科医疗科技发展有限公司
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