Fly ash aluminium-based composite material with good thermal conductivity and preparation method thereof

A technology of aluminum-based composite materials and fly ash, which is applied in the field of fly ash aluminum-based composite materials and its preparation, can solve the problems affecting the mechanical properties of materials, mechanical strength and durability, thermal expansion rate of friction coefficient, and weak bonding surface of pores , Fly ash diffusibility and other problems, to achieve the effect of reducing interface performance, increasing specific surface area, and solving poor dispersion

Inactive Publication Date: 2015-07-08
BENGBU NANZI INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fly ash has poor diffusibility and poor wettability in the aluminum matrix. The traditional preparation method is prone to produce pores and the bonding surface is not firm, which affects the mechanical properties, mechanical strength, durability, friction coefficient and thermal expansion rate of the material. Etc performance

Method used

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Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A fly ash aluminum-based composite material with good thermal conductivity is made of the following raw materials in parts by weight (kg): silicon carbide 7, expanded vermiculite powder 4, fly ash microbeads 16, aluminum-magnesium alloy powder 72, lithium powder 5. Copper powder 5, polyvinyl alcohol 0.7, appropriate amount of distilled water;

[0016] A kind of fly ash aluminum-based composite material with good thermal conductivity described in the present invention is made by the following specific steps:

[0017] (1) Immerse fly ash microbeads in 10mol / l sulfuric acid solution for 2 hours, then wash the surface with distilled water to make it neutral, then dry it, and then atomize and spray copper in a spray gun by metal spraying method to dry The surface of fly ash microbeads forms a layer of coating;

[0018] (2) Calcining silicon car...

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Abstract

The invention discloses a fly ash aluminium-based composite material with good thermal conductivity, which comprises the following raw materials by weight part: 7-10 parts of silicon carbide, 3-5 parts of expanded vermiculite power, 5-25 parts of fly ash microsphere, 65-85 parts of aluminium magnesium alloy powder, 4-6 parts of lithium powder, 4-6 parts of copper powder, 0.5-1.1 parts of polyvinyl alcohol and a proper amount of distilled water. According to the invention, the added silicon carbide can enhance the thermal conductivity, wear resistance and hardness of the composite material, and the added expanded vermiculite power can enhance the fireproof and heat insulation effects of the composite material. The method can prepare the composite material with excellent performance, low cost and good thermal conductivity, has the advantages of simple technology and good stability, and also solves the pollution due to massive accumulation of fly ash.

Description

technical field [0001] The invention relates to the technical field of new material preparation, in particular to a fly ash aluminum-based composite material with good thermal conductivity and a preparation method thereof. Background technique [0002] Optical fiber is a light transmission tool that utilizes the principle of total reflection of light in fibers made of glass or plastic, and has a wide range of applications in the field of communication. During the construction and maintenance of optical fiber laying, it is often necessary to perform operations such as fusion splicing and stripping of optical fibers, and different types of equipment are required. The base material of these devices is usually made of aluminum alloy. Its strength, hardness, wear resistance, heat resistance and thermal conductivity are related to the added metal materials. A series of requirements such as aging, flame retardancy, heat conduction, heat resistance, and fire prevention. Fly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C21/00
Inventor 闫秦峻邹峰
Owner BENGBU NANZI INSTR
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