Closed-cell foam aluminum alloy and preparation method thereof

A technology of closed-cell foam and aluminum alloy, which is applied in the field of metal materials, can solve the problems of low strength of closed-cell foam aluminum, achieve strength improvement, keep compression yield strength stable, and solve the effects of uneven aging strengthening
CN108130451AInactive Publication Date: 2018-06-08北京世联信诺科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京世联信诺科技有限公司
Publication Date
2018-06-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to closed-cell foam aluminum alloy. The closed-cell foam aluminum alloy is prepared from aluminum, scandium, zirconium and titanium, wherein the mass of the scandium accounts for0.4-0.6% of that of the foam aluminum alloy, the mass of the zirconium accounts for 0.02-0.2% of that of the foam aluminum alloy, the mass of the titanium accounts for 0.5-2% of that of the foam aluminum alloy, and the content of other impurities does not exceed 0.8%. After being subjected to aging treatment, the closed-cell foamed aluminum alloy provided by the invention has the strength increased by nearly 88% compared with the conventional foamed aluminum, and can maintain the compressive yield strength to be stable for a long time at 330 DEG C, so that the problem that the performance aging enhancement of the surface and inside of the foamed aluminium is not uniform due to slow heat conduction of the closed-cell foam aluminum alloy can be effectively solved.
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Description

Technical field

[0001] The application belongs to the field of metal materials, and relates to a high-strength closed-cell foamed aluminum alloy that can be uniformly heat-treated and strengthened. Background technique

[0002] Closed-cell aluminum foam is a lightweight aluminum-based composite material composed of gas and metal framework. It has many excellent properties due to its unique physical structure. It has light weight (ρ<1), high specific strength and specific rigidity, and at the same time With multiple characteristics such as sound insulation, heat insulation, flame retardancy, damping, impact energy absorption and electromagnetic shielding, it has realized the lightweight and multifunctional structure of structural materials and has a wide range of application prospects.

[0003] At present, closed-cell aluminum foam has a low strength, which limits its application to a certain extent. Closed-cell aluminum foam is mainly used as a functional material, and a small ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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