Method for preparing cluster-type aluminum matrix composites from recycled SICP/AL composites

An aluminum-based composite material and composite material technology, applied in the field of preparing cluster-type 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 microstructure Design and realize the effect of stress matching

Active Publication Date: 2019-10-22
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

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  • Method for preparing cluster-type aluminum matrix composites from recycled SICP/AL composites

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specific Embodiment approach 1

[0040] 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:

[0041] 1. Pretreatment of composite material waste:

[0042] 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;

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

[0044] The particle size of the co...

specific Embodiment approach 2

[0062] 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

[0063] 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 discloses a method for preparing a cluster-type aluminum-based composite material by using recovered SiCp / Al composite material, and relates to a method for preparing a cluster-type aluminum-based composite material. The purpose is to solve the problems of poor plasticity and toughness of the SiCp / Al composite material prepared by the existing method, difficulty in recycling the SiCp / Al composite material, and low crushing efficiency of the composite material during the preparation process of the SiCp / Al composite material with a cluster structure. Method: 1. Composite material waste cleaning, drying and sieving; 2. Composite material powder liquid nitrogen ball milling; 3. Preparation of prefabricated body by cold pressing: 4. Mold preheating and aluminum metal melting; 5. Liquid aluminum impregnation. Beneficial effects: the composite material prepared by the present invention is a cluster composite material with high density, good tensile strength and plasticity, low cost, low process difficulty, and easy to realize the microstructure design of the material; the present invention is suitable for preparing cluster type (SiCp / Al) / Al composites.

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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Patent Type & Authority Patents(China)
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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