Solid-liquid two-phase region brazing method for high volume fraction silicon carbon particle reinforced aluminium matrix composite

A silicon carbide particle, high volume fraction technology, applied in the direction of welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of plating metal layer, etc., to improve the diffusion ability, improve the quality of the joint, and high joint strength Effect

Active Publication Date: 2014-05-21
泰格尔科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention is to solve the problem that the existing high-volume-fraction silicon carbide particle-reinforced aluminum-based composite material must be connected or welded with Kovar alloy at a low temperature below the solidus line of the base metal, and a metal layer needs to be coated during the brazing process. problems, while providing a high volume fraction silicon carbide particle reinforced aluminum matrix composite solid-liquid two-phase zone brazing method

Method used

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  • Solid-liquid two-phase region brazing method for high volume fraction silicon carbon particle reinforced aluminium matrix composite
  • Solid-liquid two-phase region brazing method for high volume fraction silicon carbon particle reinforced aluminium matrix composite
  • Solid-liquid two-phase region brazing method for high volume fraction silicon carbon particle reinforced aluminium matrix composite

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specific Embodiment approach 1

[0031] Specific embodiment one: In this embodiment, the brazing method of solid-liquid two-phase region of high volume fraction silicon carbide particles reinforced aluminum matrix composite material is carried out according to the following steps:

[0032] 1. Ultrasonicize the silicon carbide particle reinforced aluminum matrix composite material in acetone for 10min to 15min at room temperature, wash with distilled water for 3 to 5 times and then dry it, and then use sandpaper to sand the surface of the silicon carbide particle reinforced aluminum matrix composite material Carry out grinding treatment, and finally ultrasonically treat in distilled water for 10min to 15min, then wash with distilled water for 3 to 5 times and then blow dry to obtain the treated silicon carbide particle reinforced aluminum matrix composite material;

[0033] 2. Ultrasonically treat the Kovar alloy in acetone for 10-15 minutes at room temperature, wash it with distilled water for 3-5 times, and t...

specific Embodiment approach 2

[0042] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that step 1 is ultrasonically treated in acetone for 12 minutes, washed with distilled water for 4 times, and then dried, and then sandpaper is used on the surface of the silicon carbide particle-reinforced aluminum-based composite material. Grinding treatment, and finally ultrasonic treatment in distilled water for 12 minutes, followed by washing with distilled water for 4 times and drying to obtain the treated silicon carbide particle-reinforced aluminum matrix composite material. Others are the same as the first embodiment.

specific Embodiment approach 3

[0043] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that step two is ultrasonically treated in acetone for 12 minutes, washed with distilled water for 4 times and then dried, and then the surface of the Kovar alloy is polished with sandpaper, Finally, it was ultrasonically treated in distilled water for 12 minutes, washed with distilled water for 4 times, and then dried to obtain the treated Kovar alloy. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a solid-liquid two-phase region brazing method for a high volume fraction silicon carbon particle reinforced aluminium matrix composite and relates to a brazing method for the high volume fraction silicon carbon particle reinforced aluminium matrix composite. The invention aims to solve the problems that connection of an existing high volume fraction silicon carbon particle reinforced aluminium matrix composite or welding of the existing high volume fraction silicon carbon particle reinforced aluminium matrix composite with a kovar alloy needs to be carried out under a low temperature lower than the temperature of a base metal solidus and in the brazing process, the existing high volume fraction silicon carbon particle reinforced aluminium matrix composite needs to be plated with a metal layer. The method comprises the following steps: 1, washing the silicon carbon particle reinforced aluminium matrix composite and the kovar alloy; 2, carrying out acid pickling and alkali cleaning on the silicon carbon particle reinforced aluminium matrix composite; 3, fixing a brazing filler metal, the silicon carbon particle reinforced aluminium matrix composite and the kovar alloy; 4, carrying out welding. The solid-liquid two-phase region brazing method is used for connection of the high volume fraction silicon carbon particle reinforced aluminium matrix composite or brazing of the composite and the kovar alloy.

Description

technical field [0001] The invention relates to a brazing method for high volume fraction silicon carbide particles reinforced aluminum matrix composite materials. Background technique [0002] With the rapid development of my country's aerospace industry and information industry, microwave circuits, microelectronic devices, and semiconductor integrated circuits, which are widely used in aviation, aerospace, and military fields, are moving towards high integration, high power, light weight, small size, strong performance and The development in the direction of high reliability requires higher and higher chip integration, larger chip size and power, and stricter heat dissipation requirements. Accordingly, the chip carrier-package material and its packaging technology are put forward more stringent requirements. [0003] A single metal, ceramic, etc. has become increasingly difficult to meet the requirements of the chip for the packaging shell, especially the traditional packag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/008B23K1/19B23K1/20
CPCB23K1/008B23K1/19B23K1/20B23K1/206B23K35/3006B23K2103/16
Inventor 牛济泰
Owner 泰格尔科技有限公司
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