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A kind of preparation method of cluster type (sicp/al)/al composite material

A composite material and cluster technology, which is applied in the field of preparation of cluster type/Al composite materials, can solve the problems of high preparation cost, poor plastic toughness, and low crushing efficiency of SiCp/Al composite materials. The effect of improving plasticity and toughness, and improving plasticity and toughness

Active Publication Date: 2019-09-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • 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, high preparation cost of the SiCp / Al composite material, and low crushing efficiency of the composite material during the preparation process of the SiCp / Al composite material with cluster structure, A preparation method of cluster type (SiCp / Al) / Al composite material is proposed

Method used

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  • A kind of preparation method of cluster type (sicp/al)/al composite material

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specific Embodiment approach 1

[0050] Specific embodiment one: the preparation method of the cluster type (SiCp / Al) / Al composite material in this embodiment is carried out according to the following steps:

[0051] 1. Pretreatment of composite material waste:

[0052] 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;

[0053] 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.%;

[0054] The particle size of the composite material waste powder is 300 μm to 700 μm;

[0055...

specific Embodiment approach 2

[0075]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

[0076] 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

A method for preparing a cluster type (SiCp / Al) / Al composite material; relates to a method for preparing a 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, high preparation cost of 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 waste cleaning, drying and sieving; 2. Composite powder liquid nitrogen ball milling: 3. Preparation of prefabricated body by cold pressing: 4. Mold preheating and aluminum metal melting; 5. Liquid aluminum impregnation; 6. , Hot extrusion. 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 applicable to the preparation of cluster type ( SiCp / Al) / Al composite material.

Description

technical field [0001] The invention relates to a method for preparing a cluster type (SiCp / Al) / Al 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 plasticit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C21/00C22C32/00C22F1/04
CPCC22C1/1015C22C1/1036C22C1/1094C22C21/00C22C32/0063C22F1/04C22C1/1073
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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