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A process for preparing copper-tungsten gradient functional materials using gradient copper-tungsten alloy powder

A technology of gradient functional materials and copper-tungsten alloys, which is applied in the field of preparation of copper-tungsten gradient functional materials by using gradient copper-tungsten alloy powders, can solve the problems of not being suitable for batch production, high material costs and high processing costs, and reduce material costs and equipment Requirements, meet the mass production, the effect of easy thickness

Active Publication Date: 2022-02-08
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technical solution prepares copper-tungsten alloys by powder metallurgy, and hot-presses powders containing different proportions of copper and tungsten, which involves multiple processes such as hot-pressing, degreasing, and hydrogen sintering, and has certain requirements for pressing equipment and sintering equipment. Suitable for mass production, and the material cost and processing cost in the production process are relatively high

Method used

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  • A process for preparing copper-tungsten gradient functional materials using gradient copper-tungsten alloy powder

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: A kind of technology that utilizes gradient copper-tungsten alloy powder to prepare copper-tungsten gradient functional material, specifically includes:

[0026] Step 1: Preparation of mixed powder matrix

[0027] Put copper and tungsten powders with different gradients: CuW55 powder, CuW60 powder, CuW65 powder, CuW70 powder, CuW75 powder, CuW80 powder, CuW85 powder, CuW90 powder into the mixer in batches, and then put them into the mixer respectively. Copper tungsten powder with a mass percentage of 0.5% forming agent, mixed for 4 hours, to obtain the mixed powder matrix of copper and tungsten powder with various gradients: CuW55 powder containing 0.5% forming agent, CuW60 powder containing 0.5% forming agent, CuW65 containing 0.5% forming agent powder, CuW70 powder containing 0.5% forming agent, CuW75 powder containing 0.5% forming agent, CuW80 powder containing 0.5% forming agent, CuW85 powder containing 0.5% forming agent, CuW90 powder containing 0.5% ...

Embodiment 2

[0035] Embodiment 2: A kind of technology that utilizes gradient copper-tungsten alloy powder to prepare copper-tungsten gradient functional material, specifically includes:

[0036] Step 1: Preparation of mixed powder matrix

[0037] Put copper and tungsten powders with different gradients: CuW55 powder, CuW60 powder, CuW65 powder, CuW70 powder, CuW75 powder, CuW80 powder, CuW85 powder, CuW90 powder into the mixer in batches, and then put them into the mixer respectively. Copper tungsten powder with a mass percentage of 2% molding agent, mixed for 5 hours, to obtain the mixed powder matrix of copper and tungsten powder with various gradients: CuW55 powder with 2% molding agent, CuW60 powder with 2% molding agent, CuW65 powder with 2% molding agent , CuW70 powder containing 2% forming agent, CuW75 powder containing 2% forming agent, CuW80 powder containing 2% forming agent, CuW85 powder containing 2% forming agent, CuW90 powder containing 2% forming agent; Specifically, SBP g...

Embodiment 3

[0045] Embodiment 3: A kind of technology that utilizes gradient copper-tungsten alloy powder to prepare copper-tungsten gradient functional material, specifically includes:

[0046] Step 1: Preparation of mixed powder matrix

[0047] Put copper and tungsten powders with different gradients: CuW55 powder, CuW60 powder, CuW65 powder, CuW70 powder, CuW75 powder, CuW80 powder, CuW85 powder, CuW90 powder into the mixer in batches, and then put them into the mixer respectively. Copper tungsten powder with a mass percentage of 4% forming agent, mixed for 6 hours, to obtain the mixed powder matrix of copper and tungsten powder with various gradients: CuW55 powder containing 4% forming agent, CuW60 powder containing 4% forming agent, CuW65 containing 4% forming agent powder, CuW70 powder containing 4% forming agent, CuW75 powder containing 4% forming agent, CuW80 powder containing 4% forming agent, CuW85 powder containing 4% forming agent, CuW90 powder containing 4% forming agent; Th...

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Abstract

The invention provides a process for preparing copper-tungsten gradient functional materials by using gradient copper-tungsten alloy powder, which specifically includes: preparation of mixed powder matrix: mixing various gradient copper-tungsten powders with different proportions of forming agents to obtain different proportions of forming agents. The mixed powder matrix of each gradient copper-tungsten powder; pressing: pour the mixed powder matrix of each gradient copper-tungsten powder mixed with different proportions of forming agents into a suitable mold according to the requirements, and press it on a hydraulic press to obtain each molding. Workpiece; degumming: sintering and degumming; sintering: put the prepared copper blocks on copper-tungsten compacts with different gradients, and then carry out liquid-phase sintering in a molybdenum wire furnace; adopt the method of the present invention to prepare copper-tungsten gradient materials, which can Effectively reduce material costs and equipment requirements, further reduce costs, improve material performance, and meet mass production.

Description

technical field [0001] The invention relates to the technical field of preparation of copper-tungsten gradient functional materials, in particular to a process for preparing copper-tungsten gradient functional materials by using gradient copper-tungsten alloy powder. Background technique [0002] Tungsten-copper material is composed of tungsten with high melting point and high hardness and copper with high electrical conductivity and high thermal conductivity. Tungsten-copper is not in solid solution with each other, so tungsten-copper material is called a pseudo-alloy. [0003] Tungsten-copper composite material is a two-phase pseudo-alloy composed of two metals, tungsten and copper, whose physical and chemical properties are quite different. Hardness, high melting point, high density tungsten or tungsten copper with low copper content, while the other end is copper with excellent electrical and thermal conductivity and plasticity or tungsten copper with high copper content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C27/04B22F3/02B22F3/10B22F3/26
CPCC22C1/045C22C27/04B22F3/02B22F3/1021B22F3/1035B22F3/26
Inventor 刘萍周兴康迪王小军周宁
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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