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An impregnation device and a method for efficiently preparing diamond powder reinforced metal matrix composites

A diamond powder and metal matrix technology is applied in the field of infiltration device and the preparation of diamond powder reinforced metal matrix composite materials, which can solve the problems of high cost and low efficiency, and achieve cost reduction, energy consumption reduction, and quality and stability improvement. Effect

Active Publication Date: 2022-02-08
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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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 high cost and low efficiency in the preparation of diamond powder-reinforced metal-matrix composite materials by air pressure infiltration, the present invention proposes an infiltration device and a method for efficiently preparing diamond powder-reinforced metal-matrix composite materials

Method used

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  • An impregnation device and a method for efficiently preparing diamond powder reinforced metal matrix composites

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Effect test

specific Embodiment approach 1

[0015] Embodiment 1: The infiltration device is composed of a melt part 1, an infiltration part 2 and a riser 11; the melt part 1 is used for smelting metal matrix melt, and the infiltration part 2 is used for diamond infiltration to obtain diamond / Metal composite material; a crucible 3 is arranged inside the melting part 1, a melting part heater 5 is arranged in the gap between the crucible 3 and the shell of the melting part 1, and a melting part is arranged on the shell of the melting part 1 The body part exhaust pipe 9 and the melt part inlet pipe 10; the impregnation part 2 is provided with an impregnation chamber 4, the mold 7 is arranged in the impregnation chamber 4, and the connection between the impregnation chamber 4 and the shell of the impregnation part 2 The impregnation part heater 6 is arranged in the gap between them, and the impregnation part 2 is provided with an impregnation part suction pipe 8; Composition, the outside of the liquid riser 11 is provided w...

specific Embodiment approach 2

[0017] Specific Embodiment 2: This Embodiment The method for efficiently preparing diamond powder-reinforced metal matrix composites in this embodiment is carried out by using an infiltration device. The specific steps are:

[0018] 1. Fill the diamond powder in the mold 7, close the filling port after filling and vibrating, and then place the mold 7 in the infiltration chamber 4; place the metal matrix in the crucible 3 inside the melt part 1;

[0019] 2. Use the suction pipe 8 of the impregnation part and the suction pipe 9 of the melt part to vacuumize the melt part 1 and the impregnation part 2 to an air pressure of ≤ 50 Pa, and raise the temperature of the impregnation chamber 4 to 30-30 Pa above the melting point of the metal matrix. 300°C and heat preservation, the crucible 3 is heated to 50-300°C above the melting point of the metal matrix and heat preservation, at this time the metal matrix has been melted, the impregnation chamber 4 and the crucible 3 are simultaneous...

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment is different from Embodiment 2 in that: the inert gas in step 2 is Ar or N.

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Abstract

An infiltration device and a method for efficiently preparing a diamond powder reinforced metal matrix composite material relate to an infiltration device and a method for preparing a diamond powder reinforced metal matrix composite material. The purpose is to solve the problems of high cost and low efficiency in the preparation of diamond powder reinforced metal matrix composites by air pressure infiltration. The impregnating device of the present invention is composed of a melting part, an impregnating part and a liquid rising pipe; the liquid rising pipe is arranged between the impregnating part and the melting part. Method: Fill the diamond powder in the mold, place the mold in the infiltration chamber; place the metal matrix in the crucible inside the melting part; The infiltration pipe is removed and replaced with a new one. The invention can realize continuous operation, improve production efficiency and reduce cost. The infiltration part and the melt part are heated and cooled independently to reduce energy consumption. The invention is suitable for preparing diamond powder reinforced metal matrix composite materials.

Description

technical field [0001] The invention relates to an infiltration device and a method for preparing a diamond powder reinforced metal matrix composite material. Background technique [0002] With the rapid increase of power consumption in the electronics industry, there is an urgent need for high thermal conductivity electronic packaging materials. Due to the excellent thermal conductivity of diamond and the substantial reduction in the cost of artificial diamond powder, the application prospect of diamond powder as a reinforcing phase metal matrix composite in the field of thermal management in the semiconductor industry is becoming more and more promising. At present, this type of composite material is generally prepared by air pressure infiltration technology. Air pressure infiltration realizes the full contact between diamond and liquid metal, which is conducive to strengthening the interface bonding. The prepared diamond powder reinforced metal matrix composite has excell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C26/00C22C1/10B22D23/04
CPCC22C26/00C22C1/1036B22D23/04C22C1/1073
Inventor 丁伟
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY