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Plating of high-volume-fraction silicon carbide particle reinforced aluminum-based composite and preparation method thereof

A technology of silicon carbide particles and high volume fraction, applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of poor microscopic continuity of the coating, and achieve improved protection ability, high wear resistance and corrosion resistance Good performance and continuity

Inactive Publication Date: 2019-09-27
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, single electroless nickel plating, especially the conventional acidic electroless nickel plating solution, cannot completely cover the substrate, and there is still the problem of poor microscopic continuity of the coating.

Method used

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  • Plating of high-volume-fraction silicon carbide particle reinforced aluminum-based composite and preparation method thereof
  • Plating of high-volume-fraction silicon carbide particle reinforced aluminum-based composite and preparation method thereof
  • Plating of high-volume-fraction silicon carbide particle reinforced aluminum-based composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0068] 1) Wipe the surface of the high volume SiCp / Al composite material with absolute ethanol;

[0069] 2) The surface of the high volume SiCp / Al composite material obtained in step 1) is chemically degreased, and the formula and operating conditions of the chemical degreasing solution are as follows:

[0070]

[0071]

[0072] After the chemical degreasing is completed, the high volume SiCp / Al composite material is taken out of the solution;

[0073] 3) washing the residual solution on the surface of the high volume SiCp / Al composite material obtained in step 2) with water;

[0074] 4) Light-emitting the surface of the high-volume SiCp / Al composite material obtained in step 3), the formula and operating conditions of the light-emitting solution are as follows:

[0075] Nitric acid 500g / L

[0076] Solution temperature room temperature

[0077] Duration 30s

[0078] After the light emission is completed, the high-volume SiCp / Al composite material is taken out of the ...

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Abstract

The invention belongs to the technical field of surface engineering and relates to a plating of a high-volume-fraction silicon carbide particle reinforced aluminum-based composite and preparation method thereof. The high-volume-fraction silicon carbide particle reinforced aluminum-based composite is hereinafter called high-volume-fraction SiCp / Al composite. By means of plating on the surface of the high-volume-fraction SiCp / Al composite, the electric conduction function, the microwave transmission function, the welding function and the like of the high-volume-fraction SiCp / Al composite can be guaranteed. The plating is mainly applied to high-volume-fraction SiCp / Al composite load structure products such as spacecraft high-power microwave products, phased-array antennas and aerospace power sources.

Description

technical field [0001] The present invention relates to high volume fraction silicon carbide particles reinforced aluminum matrix composite material coating and its preparation method. The surface coating of the composite material ensures the conduction, microwave transmission and welding functions of the material. It is mainly used for high-volume SiCp / Al composite material load structure products such as high-power microwave products for spacecraft, phased array antennas, and aerospace power supplies. It belongs to surface engineering. technology field. Background technique [0002] High volume SiCp / Al composite material has the advantages of low density, high thermal conductivity and adjustable thermal expansion coefficient. It is the third generation of electronic packaging materials. It is widely used in heat sink carrier and shell of power supply. [0003] Aerospace phased array antennas, SAR antenna T / R components, etc. use high volume fraction SiCp / Al composite mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36C25D3/38C23G1/22C23C18/18C23C28/02
CPCC23C18/1844C23C18/36C23C28/023C23G1/22C25D3/38
Inventor 冯立刘云彦李思振崔庆新白晶莹李家峰关宏伟徐俊杰佟晓波
Owner BEIJING SATELLITE MFG FACTORY
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