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Method for utilizing spray formed aluminum-silicon-copper-magnesium alloy powder for hot pressed sintering

A technology of spray forming and hot pressing sintering, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of energy waste, environmental pollution, increase of production cost, etc., and achieve the goal of increasing application fields, reducing environmental pollution, and reducing energy consumption Effect

Pending Publication Date: 2019-08-02
江苏豪然新材料有限公司
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Problems solved by technology

Moreover, the alloy powder has the problems of surface oxidation, wide particle size distribution, and high particle hardness. The current treatment method for the powder is to use it as a return material. A lot of waste and environmental pollution, but also increased production costs

Method used

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Embodiment Construction

[0032] The following description sufficiently illustrates specific embodiments of the present invention to enable those skilled in the art to practice them. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The scope of the embodiments of the present invention includes the entire scope of the claims, and all available equivalents of the claims.

[0033] In some demonstrative embodiments, there is provided a hot press sintering method using spray-formed aluminum-silicon-copper-magnesium alloy powder, which includes the following steps:

[0034] S1: powder collection; the aluminum-silicon-copper-magnesium alloy powder produced in the spray forming process is cooled to room temperature under nitrogen protection, and stored in a vacuum to avoid oxidation.

[0035] S2: powder sieving; under the protection of nitrogen, the powder collected in step S1 is sieved into the first type of powder, the second type of powder, the ...

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Abstract

The invention provides a method for utilizing spray formed aluminum-silicon-copper-magnesium alloy powder for hot pressed sintering. The method comprises the following steps of powder collecting, powder screening, powder mixing, die preparing, hot-pressed sintering, demoulding and heat treatment. The method has the following beneficial effects that energy consumption is reduced, and environment pollution is reduced; the spraying formed powder appliance field is enlarged, the alloy powder is efficiently utilized, and the cost for preparing an ingot blank through spraying forming is reduced; most of ordinary powder metallurgy raw materials are formed through mixing of multiple kinds of powder, the risk of uneven mixing exists, the alloy powder uniform in component can be prepared through thespraying forming technology, and raw material matching and mixing are not needed.

Description

Technical field [0001] The invention belongs to an aluminum alloy treatment process, and particularly relates to a hot press sintering method using spray-formed aluminum-silicon-copper-magnesium alloy powder. Background technique [0002] In recent years, due to the increasingly prominent energy and environmental issues, lightweight has become the main development trend in the fields of automobiles and air-conditioning compressors. This provides the application of lightweight, high-strength, wear-resistant and corrosion-resistant aluminum alloy materials The prospect of industrialization. The aluminum-silicon-copper-magnesium-aluminum alloy has the characteristics of low density, low thermal expansion coefficient, high strength, high wear resistance and high thermal conductivity. It can be used to prepare pulleys, bearings, cylinder liners, sliding vanes, rotors and other parts. Improve equipment performance, extend service life, and reduce energy consumption, with obvious envir...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F3/14B22F3/24
CPCB22F3/14B22F3/24B22F2003/248B22F2999/00B22F1/052B22F2201/20
Inventor 周建党张豪张捷马万太范曦张学杰
Owner 江苏豪然新材料有限公司
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