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Aluminum material of zip-top two-sheet can body and production method thereof

A production method and technology of aluminum materials, applied in the field of aluminum alloy manufacturing, can solve the problems of one-hour consumption, fire accidents, low production efficiency, etc., and achieve the effects of reducing the number of times on the machine, improving efficiency, and increasing the yield

Active Publication Date: 2014-11-26
ALUHOUSE TECHGD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the traditional single-stand cold rolling mill produces 3104 aluminum alloy strips, it takes three passes to roll from 2.2 to 2.5 mm to the finished product of 0.27 to 0.28 mm. It takes only 40 minutes for a 13-ton aluminum coil to roll. Stand cold rolling only has a single uncoiler and a single coiler, and additional auxiliary time is required for unwinding and threading, so rolling a coil takes an average of more than one hour, and the production efficiency is low
And in the processing of aluminum strips, most of the traditional single-stand cold rolling mills use full oil as cooling lubricant, which often causes fire accidents due to broken strips

Method used

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  • Aluminum material of zip-top two-sheet can body and production method thereof
  • Aluminum material of zip-top two-sheet can body and production method thereof
  • Aluminum material of zip-top two-sheet can body and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] The alloy state of the aluminum body of the easy-to-pull 2-piece can described in this embodiment: 3104H19; the thickness of the finished product: 0.275mm; the production process includes: melting and casting→sawing and milling→homogenization treatment→hot rolling→cold rolling→finishing and trimming , pre-oiling → packaging, the specific process parameters are as follows:

[0028] (1) Casting

[0029] The mass percentages of the chemical composition of molten aluminum after casting are: Si0.2056%, Fe0.4207%, Cu0.1636%, Mn0.8889%, Mg1.2141%, Cr0.0080%, Zn0.0180%, Ti0.0123 %, Al97.0678%; the melting temperature is 735°C, the refining temperature is 728°C, and the casting temperature is 684°C.

[0030] (2) Homogenization treatment (heating): the ingot is kept at 600~610°C for 8~10 hours, then turned to 510~520°C for 2~3 hours.

[0031] (3) Hot rolling: use 1+5 hot rolling production line, 1 reversible rough rolling mill plus 1 five-stand hot continuous rolling production...

Embodiment 2

[0041]The alloy state of the aluminum body of the easy-to-pull 2-piece can described in this embodiment: 3104H19; the thickness of the finished product: 0.275mm; the production process includes: melting and casting→sawing and milling→homogenization treatment→hot rolling→cold rolling→finishing and trimming , pre-oiling → packaging, the specific process parameters are as follows:

[0042] (1) Casting

[0043] The mass percentages of the chemical composition of molten aluminum after casting are: Si0.2287%, Fe0.4654%, Cu0.2054%, Mn0.8872%, Mg1.2265%, Ti0.0123%, Cr0.0001%, Zn0.0101 %, Al96.9633%; the melting temperature is 730°C, the refining temperature is 728°C, and the casting temperature is 687°C.

[0044] (2) Homogenization treatment (heating): the ingot is kept at 600~610°C for 8~10 hours, then turned to 510~520°C for 2~3 hours.

[0045] (3) Hot rolling: use 1+5 hot rolling production line, 1 reversible rough rolling mill plus 1 five-stand hot continuous rolling production ...

Embodiment 3

[0055] The alloy state of the aluminum body of the easy-to-pull 2-piece can described in this embodiment: 3104H19; the thickness of the finished product: 0.275mm; the production process includes: melting and casting→sawing and milling→homogenization treatment→hot rolling→cold rolling→finishing and trimming , pre-oiling → packaging, the specific process parameters are as follows:

[0056] (1) Casting

[0057] The mass percentages of the chemical composition of molten aluminum after casting are: Si0.1857%, Fe0.3929%, Cu0.1525%, Mn0.8603%, Mg1.1986%, Ti0.0161%, Cr0.0010%, Zn0.0110 %, Al97.1809%; the melting temperature is 735°C, the refining temperature is 730°C, and the casting temperature is 689°C.

[0058] (2) Homogenization treatment (heating): the ingot is kept at 600~610°C for 8~10 hours, then turned to 510~520°C for 2~3 hours.

[0059] (3) Hot rolling: use 1+5 hot rolling production line, 1 reversible rough rolling mill plus 1 five-stand hot continuous rolling production...

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Abstract

The invention discloses an aluminum material of a zip-top two-sheet can body and a production method thereof; the production process comprises casting, saw-cutting, face-milling, heating, hot continuous rolling and cold-rolling, wherein casted molten aluminum consists of the following chemical components by mass percentage: 0.17-0.23% of Si, 0.38-0.48% of Fe, 0.145-0.21% of Cu, 0.85-0.90% of Mn, 1.18-1.23% of Mg, not greater than 0.025% of Cr, not greater than 0.02% of Zn, not greater than 0.02% of Ti, not greater than 0.10% of other impurities each of which accounts for not greater than 0.03%, and the balance of Al; smelting temperature is at 720-750 DEG C; refining temperature is at 725-740 DEG C; and casting temperature is 660-700 DEGC. The cold-rolling process comprises the following steps of: by a five-stand cold continuous rolling production line, rolling an aluminum material from 2.2-2.5mm to 0.27-0.28mm in the first time of forming, and distributing reduction rates of the first to the fifth stands as: 25-35%, 25-38%, 25-38%, 30-50% and 35-50%. The production method disclosed by the invention not only guarantees the stable and qualified mechanical performance of the aluminum material of the zip-top two-sheet can body, but also shortens the production process and improves the production efficiency.

Description

technical field [0001] The invention relates to the field of aluminum alloy manufacturing, in particular to an aluminum material for an easy-pull 2-piece can body and a production method thereof. Background technique [0002] China's aluminum can manufacturing industry is gradually growing, and 3104 aluminum alloy, as the most commonly used material for making 2-piece can bodies, has a good development prospect. As the thickness of the aluminum can body becomes thinner, higher requirements are placed on the mechanical properties of the can body aluminum material; at the same time, the domestic can making industry continues to develop, and the demand for can body aluminum material increases, which also imposes requirements on the delivery cycle. In order to improve material utilization and increase production efficiency, the thinning technology of finished product thickness of 3104 aluminum alloy strip and the reduction of hot rolling and cold rolling passes have become resea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/02C22F1/047C21D8/04
Inventor 沈文金王爱军吴义山姚彩玲徐曾邓春龙罗博基谢劲松靳明祥甘志斌黄文辉皮洪陈容
Owner ALUHOUSE TECHGD CO LTD
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