Production method of ternary copper powder

Production method of ternary copper powder

  • CN 104,308,143 A
  • Filed: 09/16/2014
  • Published: 01/28/2015
  • Est. Priority Date: 09/16/2014
  • Status: Active Application
First Claim
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1. a production method for ternary copper powder, is characterized in that described method comprises the steps:

  • (1) powder is joined;

    preparation oxygen content is 7.0% ~ 15.0%, and particle diameter is less than the copper powder mixed powder of 500um.(2) heat treatment;

    in described step (1), gained copper powder mixed powder is heat-treat in the heat-treatment furnace of nitrogen or vacuum state at heat-treating atmosphere, and heat treatment temperature is 450 DEG C ~ 1000 DEG C.(3) primary fragmentation;

    to gained powder in described step (2), primary fragmentation becomes particle diameter to be less than 500um powder.(4) oxygenation;

    carry out oxygenation to the powder of described step (3) gained, oxygen content increment is 0.5% ~ 6.0%, and oxidizing temperature is 200 DEG C ~ 600 DEG C.(5) second-time breakage;

    second-time breakage is carried out to described step (4) gained powder.

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