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High-strength aluminium alloy

An aluminum alloy and high-strength technology, which is applied in the field of aluminum alloy modification treatment and high-strength 5052 aluminum alloy modification treatment, can solve the problems of low mechanical properties, cracks, and uneven distribution of products

Inactive Publication Date: 2006-07-19
CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the 5052 aluminum alloy slabs obtained by direct melting and casting of electrolytic aluminum liquid have poor surface quality (defects such as cracks and cold shuts), high content of inclusions and uneven distribution, and mechanical properties of processed products. Low variety issues

Method used

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Embodiment Construction

[0021] The present invention aims at the poor quality and low mechanical properties of the 5052 aluminum alloy casting slab in the prior art. Through a large number of researches and actual inspections, the chemical composition and content of the 5052 aluminum alloy are within the scope of the national standard GB / T3190-1996 Adjust and optimize, properly adjust the relative content of main chemical components such as Mg, Mn, Cr to improve the strengthening effect, strictly control the content of harmful elements Fe and Si, and at the same time, clearly define the content range of Ti, B and rare earth metals requirements, aiming to further increase the strength of aluminum alloys through microalloying. The specific plan is:

[0022] (1) Adjust the relative content of main strengthening elements. Mg content is the main strengthening element, and the magnesium content is controlled at 2.5-2.8% (mass percentage, the same below!); Mn and Cr have similar effects, and Mn can increas...

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Abstract

The invention provides a high-strength 5052 aluminum alloy. Wherein, optimizing and adjusting the chemical intergradient and content within GB / T3190-1996; letting the alloy achieve final index: tensile strength ªÊbí¦300MPa, yield strength ªÊsí¦240MPa, and specific elongation í¦10%. This product has wide application.

Description

technical field [0001] The invention relates to the modification treatment of aluminum alloys, in particular to the modification treatment of high-strength 5052 aluminum alloys, and belongs to the technical field of nonferrous metal processing. Background technique [0002] At present, the 5052 aluminum alloy slabs obtained by direct melting and casting of electrolytic aluminum liquid have poor surface quality (defects such as cracks and cold shuts), high content of inclusions and uneven distribution, and mechanical properties of processed products. Low and many other issues. To solve these problems, in addition to strengthening the control of the electrolytic aluminum refining process, it is also very important to further adjust the content of strengthening elements, trace elements, alloying elements, harmful elements and other components in the alloy. [0003] The national standard GB / T3190-1996 stipulates that the chemical composition (mass percentage) range of 5052 allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06
Inventor 孙德勤潘琰峰吴文祥
Owner CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
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