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Method of carrying out microwave fusion-covering onto CuW alloy on Cu matrix surface

A substrate and cladding technology, applied in metal processing equipment, heating inorganic powder coating, non-electric welding equipment, etc., can solve the problems of restricting the application of coating technology, uneven structure of alloy coating, and low density of alloy coating, etc. Achieving good bonding effect, good wear resistance and high hardness

Active Publication Date: 2014-06-25
HUAQIAO UNIVERSITY
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Problems solved by technology

However, the long welding time required by the traditional coating technology, the joint strength between the alloy coating and the substrate is not strong, the density of the alloy coating is not high, and the structure of the alloy coating is uneven, etc., which restrict the application of coating technology on Cu. Substrate application

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  • Method of carrying out microwave fusion-covering onto CuW alloy on Cu matrix surface
  • Method of carrying out microwave fusion-covering onto CuW alloy on Cu matrix surface
  • Method of carrying out microwave fusion-covering onto CuW alloy on Cu matrix surface

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Embodiment Construction

[0035] The present invention will be further elaborated below by means of the accompanying drawings and embodiments.

[0036] Use a test sieve to sieve the electrolytic copper powder with a particle size of ≤25 μm, take the tungsten powder prepared by the hydrogen reduction method, and configure the component powder according to the mass fraction of 85% Cu and 15% W (wherein the particle size of Cu powder is ≤25 μm, and the particle size of W powder is ≤2 μm) . In order to make the powder mix evenly, add a certain amount of absolute alcohol and stir evenly, then wet mill in a frequency conversion planetary ball mill. The present invention adopts a speed-adjustable planetary ball mill, and uses quenched steel balls as the ball milling medium, wherein the small balls are 50×φ5, the large balls are 10×φ18, and the mass ratio of balls to materials is 17:1. During ball milling, first vacuumize the ball mill tank, and then fill it with argon as a protective gas to avoid oxidation o...

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Abstract

The invention provides a method of carrying out microwave fusion-covering on a CuW alloy on a Cu matrix surface. A method of combining powder metallurgy and a microwave-heating technology is adopted to realize good welding of a CuW alloy coating and a Cu matrix, wherein the Cu matrix and the Cu alloy coating are fused with each other to achieve good combination effect; and time needed for adopting microwave welding is short, obtained Cu alloy coating is high in hardness and good in wear resistance.

Description

technical field [0001] The invention relates to the field of microwave welding, in particular to the field of microwave welding machines for metal materials Background technique [0002] Cu has been widely used in industrial production because of its good electrical conductivity (second only to Ag). However, Cu has limitations in some applications because of its strong ductility, low hardness, and poor surface wear resistance. In the traditional industry, Cu is mixed with other metals to prepare alloys to improve the hardness and surface wear resistance of Cu, but the cost of preparing alloys is high, and a large amount of other metals mixed with Cu will destroy the physical properties of Cu itself. [0003] The coating technology is applied to the surface of the Cu substrate, so that the surface of the Cu substrate has an alloy coating, which not only increases the hardness and wear resistance of the surface of the Cu substrate, but does not destroy the physical properties ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/08B22F1/00C22C9/00
CPCC23C24/08B22F2009/041B22F2009/043B22F2999/00B23K20/002B23K20/023B23K20/233B23K2103/12C22C1/0425B22F2201/20B22F2009/042
Inventor 江开勇张际亮王霏王小伟
Owner HUAQIAO UNIVERSITY
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