High-efficiency uniform metal copper-infiltrated composite material and preparation method thereof

A technology of composite materials and uniformity, which is applied in the direction of metal material coating process, solid-state diffusion coating, coating, etc., can solve the problem of poor uniformity and consistency of copper-infiltrated composite materials, the inability to ensure the uniformity of copper-infiltrated metal skeleton and Consistency, metal skeleton uniformity and poor consistency, etc., to achieve the effect of ensuring uniformity and consistency, improving uniformity and consistency, and good uniformity and consistency

Active Publication Date: 2021-10-12
ADVANCED TECHNOLOGY & MATERIALS CO LTD +2
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the defects of the prior art, the present invention provides a high-efficiency and uniform metal-infiltrated copper composite material and its preparation method, which solves the problem of the existing metal-infiltrated copper-infiltrated composite material. On the one hand, due to the wide range of commercially available metal powder And there is agglomeration, which leads to poor uniformity and consistency of the prepared metal skeleton. On the other hand, during the metal skeleton copper infiltration process, the uniformity and consistency of the metal skeleton copper infiltration cannot be guaranteed, which leads to the metal skeleton copper infiltration composite material. Technical problems of poor uniformity and consistency

Method used

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  • High-efficiency uniform metal copper-infiltrated composite material and preparation method thereof
  • High-efficiency uniform metal copper-infiltrated composite material and preparation method thereof
  • High-efficiency uniform metal copper-infiltrated composite material and preparation method thereof

Examples

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example 1

[0109] A method for preparing a high-efficiency and uniform metal tungsten-copper infiltrated composite material, comprising the following steps:

[0110] (1) The commercially available raw tungsten powder (D10 particle size is 11.470 μm, D90 particle size is 52.422 μm, D10-D90 particle size range reaches 40.952 μm) is vacuum dried, the drying temperature is 200 ° C, and the holding time is 90min, vacuum degree is 10 -2 Pa, to obtain dried tungsten powder;

[0111] (2) The dried tungsten powder is crushed and classified in a vertical fluidized bed. During the process, the pressure of the air-tight pressure gauge is kept at 0.2MPa, and the air volume of the secondary air distribution is 1000m 3 / hour, the powder feeding rate of the feeder is 150Kg / hour, the speed value of the classifier is 150r / min, then obtain the processed tungsten powder (D10 particle diameter is 7.826 μ m, D90 particle diameter is 23.400 μ m, the particle size of D10-D90 The range narrowed to 15.574μm);...

example 2

[0124] A method for preparing a high-efficiency uniform metal molybdenum copper-infiltrated composite material, comprising the steps of:

[0125] (1) The commercially available raw material molybdenum powder (D10 particle size is 8.326 μm, D90 particle size is 36.523 μm, and the particle size range of D10-D90 has reached 28.197 μm) is vacuum-dried at a drying temperature of 100 ° C, holding time 120min, vacuum degree is 10 -2 Pa, obtain dry molybdenum powder;

[0126](2) The dried molybdenum powder is subjected to vertical fluidized bed crushing and grading treatment. During the treatment process, the pressure of the air-tight pressure gauge is kept at 0.25MPa, and the air volume of the secondary air distribution is 500m 3 / hour, the powder delivery rate of feeder is 40Kg / hour, and the speed value of classifier is 800r / min, then obtains processing molybdenum powder (D10 particle diameter is 2.654 μ m, D90 particle diameter is 9.952 μ m, the particle size of D10-D90 The ran...

example 3

[0131] A method for preparing a high-efficiency uniform tungsten-molybdenum alloy copper-infiltrated composite material comprises the following steps:

[0132] (1) Vacuum dry the commercially available raw material tungsten powder (D10 particle size is 11.470 μm, D90 particle size is 52.422 μm, and the particle size range of D10-D90 reaches 40.952 μm). The time is 120min, the vacuum degree is 10 -2 Pa, to obtain dried tungsten powder;

[0133] Commercially available raw molybdenum powder (D10 particle size is 8.326 μm, D90 particle size is 36.523 μm, and the particle size range of D10-D90 reaches 28.197 μm) is vacuum-dried. , a vacuum of 10 -2 Pa, obtain dry molybdenum powder;

[0134] (2) The dried tungsten powder is crushed and classified in a vertical fluidized bed. During the process, the pressure of the air-tight pressure gauge is kept at 0.1MPa, and the air volume of the secondary air distribution is 600m 3 / hour, the powder feeding rate of the feeder is 50Kg / hour,...

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Abstract

The invention provides a high-efficiency uniform metal copper-infiltrated composite material and a preparation method thereof. The method comprises the steps that commercially available metal powder is subjected to vacuum drying to obtain dried metal powder; the dried metal powder is subjected to vertical fluidized bed type smashing and grading treatment to obtain treated metal powder; the treated metal powder is subjected to press forming to obtain a metal compact; the metal compact is placed in a furnace to be sintered to obtain a metal sintered skeleton; and the metal sintered skeleton is subjected to copper infiltration treatment to obtain the metal copper-infiltrated composite material. The problems that in an existing preparation method of a metal copper-infiltrated composite material, on one hand, due to the fact that commercially available metal powder is distributed in a wide range and agglomerated, a prepared metal skeleton is poor in uniformity and consistency, and on the other hand, due to the fact that the uniformity and consistency of copper infiltration of the metal skeleton cannot be guaranteed in the copper infiltration treatment process of the metal skeleton, a metal copper-infiltrated composite material is poor in uniformity and consistency are solved.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy, and in particular relates to a high-efficiency uniform copper-infiltrated composite material and a preparation method thereof. Background technique [0002] Existing metal copper infiltrated composite materials include tungsten copper infiltrated composite materials, molybdenum copper infiltrated composite materials and tungsten-molybdenum alloy copper infiltrated composite materials, etc., which have been widely used in aerospace, electronics, metallurgical industries and other fields, such as solid rocket motors Gas ablation-resistant components such as gas rudders, nozzle throat linings, guard plates, etc., as well as blanks of cathode substrate materials that resist arc ablation in the electronic field. [0003] With the development of science and technology, the new generation of equipment puts forward strict requirements on the high precision of materials, which puts forward highe...

Claims

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Application Information

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IPC IPC(8): C22C27/04C22C30/00C22C1/04B22F3/04B22F3/10B22F1/00C23C10/00
CPCC22C27/04C22C30/00C22C1/045B22F3/04B22F3/1007C23C10/00
Inventor 张保红熊宁刘国辉唐亮亮郭颖利林冰涛杜丽业
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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