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

An aluminum-based composite material and composite material technology, applied in the field of preparation of cluster aluminum-based composite materials, can solve the problems of poor plasticity and toughness, difficulty in recycling SiCp/Al composite materials, etc., and achieve high density and easy microscopic Structural design, the effect of low raw material cost

Active Publication Date: 2018-10-12
HARBIN INST OF TECH
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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 composite material, the present invention proposes a method for preparing a cluster-type aluminum-based composite material by using the recovered SiCp / Al composite material Methods

Method used

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

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specific Embodiment approach 1

[0037]Specific implementation mode 1: In this implementation mode, the method for preparing cluster-type aluminum-based composite materials using recovered SiCp / Al composite materials is carried out according to the following steps:

[0038] 1. Pretreatment of composite material waste:

[0039] The composite material waste is crushed to obtain composite material waste particles, and 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 The drying box is used for drying treatment, and after the drying treatment, mechanical sieving is used to obtain composite material waste powder;

[0040] The composite material waste is SiCp / Al composite material waste, wherein the volume fraction of SiCp in the SiCp / Al composite material is 30-70vol.%;

[0041] The particle size of the composit...

specific Embodiment approach 2

[0059] Embodiment 2: This embodiment differs from Embodiment 1 in that: when using surface detergent and alcohol for ultrasonic cleaning in step 1, the ultrasonic power is 200-400 W, and the ultrasonic cleaning time is 1-10 min. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0060] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the drying temperature in step 1 is 50-110° C., and the drying time is 3-8 hours. Other steps and parameters are the same as those in Embodiment 1 or 2.

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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, and the recycling difficulty of the SiCp / Al composite material is high. The method includes the steps that firstly, the waste composite material is cleaned, dried and screened; secondly, the composite material powder issubjected to ball milling; thirdly, a prefab 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 technical difficulty, and the microstructure design of the material is easy to achieve. The method is suitable for preparing the cluster-like aluminum based composite material.

Description

technical field [0001] The invention relates to a method for preparing a cluster aluminum-based 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 a...

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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