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Large-diameter 7005 aluminum alloy round ingot and preparation method thereof

A technology of aluminum alloy and round ingot, applied in the field of large-diameter 7005 aluminum alloy round ingot and its preparation, can solve the problems of high crack tendency, high temperature, composition segregation, etc., achieve significant social and environmental benefits, and improve comprehensive performance, the effect of reduced emissions

Active Publication Date: 2010-01-13
GUIZHOU BRANCH CHINA ALUMINUM IND
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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects of high crack tendency, serious composition segregation, and small size specifications in the existing ingots, and provide a large-diameter 7005 aluminum alloy round ingot to realize industrial production and meet the requirements of the state. Demand for 7005 aluminum alloy large profiles
[0004] Another object of the present invention is to provide a method for preparing a large-diameter 7005 aluminum alloy round ingot to overcome the defects of high hydrogen content, high slag content, and high temperature in the existing aluminum alloy ingot preparation process

Method used

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  • Large-diameter 7005 aluminum alloy round ingot and preparation method thereof
  • Large-diameter 7005 aluminum alloy round ingot and preparation method thereof
  • Large-diameter 7005 aluminum alloy round ingot and preparation method thereof

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Embodiment Construction

[0030] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, a large-diameter 7005 aluminum alloy round ingot and its preparation method proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. illustrate.

[0031] A large-diameter 7005 aluminum alloy round ingot, composed of 0-0.30% Fe, 0-0.30% Si, 0-0.10% Cu, 0.20-0.40% Mn, 1.3-1.8% Mg, 4.0-4.50% Zn by weight percentage , 0.08-0.20% Cr, 0-0.06% Ti, 0.10-0.20% Zr and the balance Al. See the table below for details:

[0032]

[0033] The weight percentage of Zn in the American standard is 4.0-5.1. Through theoretical research and metallographic analysis combined with many experiments, it can be known that when the Zn content is the middle limit and the Zn / Mg value is small, the metallurgical quality of the ingot better; and when the Zn content is clo...

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Abstract

The invention relates to the technical field of aluminum alloy preparation, in particular to a large-diameter 7005 aluminum alloy round ingot and a preparation method thereof. The large-diameter 7005 aluminum alloy round ingot and the preparation method thereof are provided in order to overcome the defects that the prior ingot has high crack tendency, serious component segregation and small dimension specification. The method for preparing the aluminum alloy round ingot comprises the processes of fusant treatment, gas curtain casting and homogenizing annealing. The method improves the comprehensive performance of aluminum alloy, can save the energy consumption and reduce the discharge of pollutants to achieve the aim of energy conservation and emission reduction, and has significant social benefit and environmental benefit; and simultaneously, the large-diameter 7005 aluminum alloy round ingot and the preparation method can satisfy the major requirements by industrial segments in China, and save a large amount of purchase foreign exchanges of the 7005 aluminum alloy round ingot for the country.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy preparation, in particular to a large-diameter 7005 aluminum alloy round ingot and a preparation method thereof. Background technique [0002] 7005 aluminum alloy belongs to the Al-Zn-Mg series weldable and heat-treatable alloy, which has been widely used in various industrial sectors at home and abroad in recent years, such as construction, bicycle, automobile, rocket manufacturing and so on. The air curtain casting process of aluminum alloy round ingot is one of the most advanced technologies in the world today. It has been widely used and developed rapidly because of its advantages of high production efficiency, low labor intensity, good ingot quality and high yield. Products produced by the existing air curtain casting process still have problems such as high alloy ingot crack tendency, serious composition segregation, high hydrogen content, high slag content, and high temperature. In ...

Claims

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Application Information

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IPC IPC(8): C22C21/10C22C1/02C22C1/06B22D21/04C22F1/053
Inventor 杨孟刚黎云谢青松龚春雷崔健田维红舒立王顺辉杨通信毕昌武文东辉曾萍
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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