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A kind of high-strength and high-conductivity wear-resistant aluminum matrix composite material and its preparation method

An aluminum-based composite material and high-conductivity technology, which is applied in the field of aluminum alloy smelting in the metallurgical industry, can solve the problems of aluminum alloy strength, wear resistance and electrical conductivity constraints, and achieve the effects of excellent quality, simplified production process and improved strength.

Active Publication Date: 2021-09-03
WUHAN RES INST OF MATERIALS PROTECTION
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  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a high-strength, high-wear-resistant, high-conductivity wear-resistant aluminum-based composite material and its preparation method, focusing on solving the problem of mutual constraints on the strength, wear-resistance and conductivity of aluminum alloys

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  • A kind of high-strength and high-conductivity wear-resistant aluminum matrix composite material and its preparation method
  • A kind of high-strength and high-conductivity wear-resistant aluminum matrix composite material and its preparation method

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Embodiment Construction

[0039] The present invention is described in detail below:

[0040] Table 1 is the value list of each embodiment of the present invention and comparative examples;

[0041] Table 2 is a list of performance testing situations of each embodiment of the present invention and comparative examples.

[0042] Each embodiment of the present invention is prepared according to the following steps:

[0043] 1) Dry all the raw materials in a drying oven for 3 hours to remove moisture. The raw materials include graphene, aluminum flux, aluminum block, silicon block, silver block, magnesium block, refining agent and slag remover.

[0044] 2) Fully mix graphene and aluminum brazing flux in a mixer, the mixing time is more than 30min, and the mixing ratio of graphene and aluminum brazing flux is ≤1:5;

[0045] 3) Melting the aluminum block and the silicon block at 700-800°C to obtain the molten material;

[0046] 4) Add silver nuggets and magnesium nuggets, and stir for 10-15 minutes;

[...

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Abstract

The invention discloses a high-strength, high-conductivity and wear-resistant aluminum-based composite material and a preparation method thereof. First, all raw materials are dried in a drying box to remove moisture; Mixing; then melt the aluminum block and silicon block at a temperature of 700-800°C; then add silver block and magnesium block to the molten material, and stir and disperse for a period of time; protection; cooling to 650-680°C, adding a mixture of graphene and aluminum brazing flux, and stirring for 5-10 minutes; performing slag removal again, and then obtaining a refining solution; casting the refined refining solution, air cooling to room temperature, That is, a high-strength, high-conductivity and wear-resistant aluminum-based composite material is obtained. The present invention utilizes the interaction between aluminum brazing flux and aluminum liquid for aluminum alloys to modify graphene, effectively improving the problem of poor wettability between graphene and aluminum liquid. The invention has simple components, low cost, high yield and high product Excellent performance.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy smelting in the metallurgical industry, and relates to a preparation method for improving the strength, conductivity and wear resistance of cast aluminum alloys, in particular to a high-strength, high-conductivity wear-resistant aluminum-based composite material and a preparation method thereof. The strength, wear resistance and conductivity of aluminum alloy are mutually restricted. Background technique [0002] The development of material performance control technology is a process of continuously meeting the higher requirements of aluminum alloy strength, toughness, electrical conductivity, wear resistance and so on. High strength, high electrical conductivity and high wear resistance are achieved through alloying. However, general alloying will bring some problems, such as high production cost, incompatibility between strength and conductivity, etc., which limits the development of hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C1/02C22C1/10C22C1/06
CPCC22C21/02C22C1/1036C22C1/06C22C1/1047
Inventor 段海涛李银华凃杰松李健李辛庚王晓明贾丹詹胜鹏刘炼骆小双
Owner WUHAN RES INST OF MATERIALS PROTECTION
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