Method for preparing cluster-like aluminum based composite material by using recycled SiCp/Al composite material

An aluminum-based composite material and a composite material technology are applied in the field of preparing cluster-type aluminum-based composite materials, which can solve the problems of poor plastic toughness and difficulty in recycling SiCp/Al composite materials, and achieve high density and easy microstructure. Design and improve the effect of ball mill efficiency

Active Publication Date: 2018-10-12
HARBIN INST OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of poor plasticity and toughness of the SiCp/Al composite material prepared by the existing method and the difficulty of recycling the SiCp/Al

Method used

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  • Method for preparing cluster-like aluminum based composite material by using recycled SiCp/Al composite material

Examples

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Example Embodiment

[0040] Specific implementation manner 1: The method of preparing cluster-type aluminum-based composite materials using recycled SiCp / Al composite materials in this implementation manner is performed as follows:

[0041] 1. Pretreatment of composite waste materials:

[0042] The composite material waste is crushed to obtain composite material waste particles. The composite material waste particles are ultrasonically cleaned with a surface detergent, and then the composite material waste particles are ultrasonically cleaned with alcohol, and then the cleaned composite material waste particles are sent into The drying box is used for drying treatment, and after drying treatment, the composite material waste powder is obtained by mechanical screening;

[0043] The composite material waste is the waste material of the SiCp / Al composite material, wherein the SiCp volume fraction in the SiCp / Al composite material is 30 vol.% to 70 vol.%;

[0044] The particle size of the composite material w...

Example Embodiment

[0062] Specific embodiment two: This embodiment is different from specific embodiment one in that in step one, the ultrasonic power for ultrasonic cleaning using surface detergent and alcohol is 200-400W, and the ultrasonic cleaning time is 1-10min. The other steps and parameters are the same as in the first embodiment.

Example Embodiment

[0063] Specific embodiment three: This embodiment is different from specific embodiment one or two in that the drying temperature in step one is 50-110°C, and the drying time is 3-8h. The other steps and parameters are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for preparing a cluster-like aluminum based composite material, in particular to a method for preparing the cluster-like aluminum based composite material by using arecycled SiCp/Al composite material in order to solve the problems that the plasticity and toughness of an SiCp/Al composite material prepared through an existing method are poor, the recycling difficulty of the SiCp/Al composite material is high, and the breaking efficiency of the composite material in the preparation process of the SiCp/Al composite material of a cluster-like structure is low. The method includes the steps that firstly, the waste composite material is cleaned, dried and screened; secondly, the composite material powder is subjected to liquid nitrogen ball milling; thirdly, aprefab is prepared in a cold pressing mode; fourthly, a mold is preheated, and aluminum metal is melted; and fifthly, infiltration of molten aluminum is carried out. The method has the beneficial effects that the composite material prepared in the invention is the cluster-like composite material, and is high in compactness, good in tensile strength and plasticity, low in cost and low in technicaldifficulty, and the microstructure design of the material is easy to achieve. The method is suitable for preparing the cluster-like (SiCp/Al)/Al composite material.

Description

technical field [0001] The invention relates to a method for preparing a cluster aluminum matrix composite material. Background technique [0002] SiCp / Al composite material has broad application value in automobile, electronics, aerospace and other fields due to its advantages of high specific rigidity / strength, small thermal expansion coefficient, good wear resistance, heat resistance and excellent dimensional stability. With the increasingly mature preparation technology and processing technology of SiCp / Al composite materials, the application of SiCp / Al composite materials is becoming more and more extensive. However, due to the large difference in the mechanical properties of the matrix and the reinforcement in the SiCp / Al composite material, and there are often many sharp corners on the surface of the SiCp, when the SiCp / Al composite material is loaded, the SiCp surface often produces a large The stress concentration of the composite material leads to poor plasticity ...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C21/00C22C32/00
CPCC22C1/1015C22C1/1036C22C21/00C22C32/0063C22C1/1073C22C1/1047
Inventor 武高辉谭鑫杨文澍周畅池海涛于真鹤邵浦真姜龙涛陈国钦张强康鹏超修子扬
Owner HARBIN INST OF TECH
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