Rolling technology for 6061 aluminium alloy medium-thickness plate

An aluminum alloy plate and aluminum alloy technology, which is applied in the field of aluminum alloy manufacturing, can solve the problems of uneven grain structure of 6061 aluminum alloy plate and affect the application range of medium and thick plate, and achieve synergistic improvement of strength and plasticity, and increase Line energy storage, improve the effect of uniformity

Inactive Publication Date: 2020-06-09
TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a rolling process for 6061 aluminum alloy plate in order to solve the problem that the grain structure of the 6061 aluminum alloy plate produced by the existing rolling process is not uniform and affects the application range of the plate

Method used

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  • Rolling technology for 6061 aluminium alloy medium-thickness plate
  • Rolling technology for 6061 aluminium alloy medium-thickness plate
  • Rolling technology for 6061 aluminium alloy medium-thickness plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A rolling process of 6061 aluminum alloy medium and heavy plate, comprising the following steps:

[0036] A. Ingredients: Calculate the amount of each aluminum alloy raw material and prepare the aluminum alloy raw material according to the ratio. The mass percentage ratio of each element of the 6061 aluminum alloy raw material is as follows:

[0037] element Si Fe Cu mn Mg Cr Zn Ti Impurities Al content 0.61 0.30 0.26 0.08 1.02 0.12 0.011 0.02 0.05 margin

[0038] B. Melting and casting: put the prepared aluminum alloy raw materials into the smelting furnace for smelting in turn, and use flux for refining and covering. After feeding, start stirring when aluminum water appears in the furnace, and smelt into liquid aluminum alloy after stirring evenly. The melting temperature is 730 ℃ ℃, pour the smelted aluminum alloy melt into the refining furnace for refining, the refining temperature is 720 ℃, the refining time is 20 min...

Embodiment 2

[0049] The difference between embodiment 2 and embodiment 1 is that in step A, the mass percentage ratio of each element of the 6061 aluminum alloy raw material is:

[0050] element Si Fe Cu mn Mg Cr Zn Ti Impurities Al content 0.59 0.38 0.30 0.08 1.00 0.11 0.014 0.02 0.05 margin

[0051] The thickness of the intermediate blank in Step F is 80 mm. In step G, the thickness of the finished product is 40mm, and the off-line temperature of the plate after cold rolling is 185°C.

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Abstract

The invention belongs to the technical field of aluminium alloy manufacture and relates to a rolling technology for a 6061 aluminium alloy medium-thickness plate. An aluminium alloy raw material is prepared from, by weight, 0.4-0.8% of Si, smaller than or equal to 0.7% of Fe, 0.15-0.4% of Cu, smaller than or equal to 0.15% of Mn, 0.8-1.2% of Mg, 0.04-0.35% of Cr, smaller than or equal to 0.25% ofZn, smaller than or equal to 0.15% of Ti, smaller than or equal to 0.05% of single impurity, smaller than or equal to 0.15% of alloy, and the balance Al. After hot rolling is performed, a cold rollingprocess is added, a solid solution process is adjusted, so that the aluminium alloy plate obtains fine grain organization of a uniform grain structure, the uniformity of all the performance of alloyis improved, and the strength and plasticity are cooperatively improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and relates to a rolling process of a 6061 aluminum alloy medium and thick plate. Background technique [0002] 6061 aluminum alloy uses magnesium and silicon as the main alloying elements, which can be strengthened by heat treatment and has medium strength. It is one of the most widely used aluminum alloys. Usually, the production process path of 6061 aluminum alloy medium and heavy plate is casting - soaking - sawing and milling - hot rolling - solution quenching - stretching - aging. Usually, the medium and thick aluminum alloy plate is industrially produced by hot rolling. The aluminum alloy ingot is heated and then rolled. The deformation resistance is reduced, the plasticity is improved, it is easy to plastically deform, and it is not easy to crack during the rolling process. Usually, the hot rolling temperature range of 6061 aluminum alloy ranges from 450 to 500 °C, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047
CPCC22C21/08C22F1/002C22F1/047
Inventor 张立鑫祖立成杜凤彪张冉陈金生
Owner TIANJIN ZHONGWANG ALUMINUM IND CO LTD
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