A kind of aluminum alloy structure material and preparation method thereof

A technology of structural materials and aluminum alloys, which is applied in the manufacture of ground vehicles and space vehicle structural products, low-density and high-strength aluminum alloy structural materials and their preparation fields, can solve the problems of inability to meet the design requirements for weight reduction, difficulty in the strength of structural materials, and Low strength and other problems, to achieve the effect of improving high-cost and complicated technical routes, scientific and reasonable formula design, and shortening the manufacturing process
CN104651684BActive Publication Date: 2017-09-26NO 52 INST OF CHINA NORTH IND GRP CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 52 INST OF CHINA NORTH IND GRP CORP
Publication Date
2017-09-26

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Abstract

An aluminum alloy structural material, characterized in that: the aluminum alloy structural material is an Al-Mg-Si-Mn-Ti alloy, and the mass percentage of each element is: Mg: 10.5% to 17.4%, and contains Be: 0.01% ~0.05%, based on magnesium charge; Si: 1.0% ~ 5.0%; Mn: 0.3% ~ 0.8%; Ti: 0.15% ~ 0.25%; Al and other unavoidable impurities: the balance. When preparing, put the weighed charge into the intermediate frequency melting furnace for alloy melting, degassing and purification treatment, then pouring, spray deposition to make a round billet; then extrusion processing, finished product processing, and heat treatment are finished products . The formula design of the present invention is scientific and reasonable, the metallurgical structure of low-density high-strength aluminum alloy is prepared by spray deposition technology, the preparation process is simple and the process is short, and the prepared aluminum alloy has the mechanical properties of high-strength aluminum alloy and the low density of aluminum-lithium alloy. It can be used in the manufacture of ground vehicles and space vehicle structural products.
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Description

technical field

[0001] The invention belongs to the technical field of metal alloy materials and preparation, and in particular relates to a low-density and high-strength aluminum alloy structural material and a preparation method thereof, which are applicable to the manufacture of ground vehicles and space vehicle structural products. Background technique

[0002] Pure aluminum has the characteristics of low density, good thermal conductivity, good plasticity and corrosion resistance. It is often used to make various profiles and plates. However, pure aluminum has poor strength and is not suitable for structural materials. Therefore, people add various materials to pure aluminum. A series of aluminum alloys are obtained by adding different alloying elements to strengthen the performance of aluminum.

[0003] Nowadays, people improve the strength and density characteristics of aluminum alloy materials by adding low-density alloying elements such as magnesium, lithium, and si...

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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