Stratiform silver-bearing copper pricker three-layer composite electric contact material prepared by a kind of atomization

Stratiform silver-bearing copper pricker three-layer composite electric contact material prepared by a kind of atomization

  • CN 106,067,391 A
  • Filed: 06/27/2016
  • Published: 11/02/2016
  • Est. Priority Date: 06/27/2016
  • Status: Active Application
First Claim
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1. the preparation method of stratiform silver-bearing copper pricker three-layer composite electric contact material prepared by an atomization, it is characterised in that:

  • includeStep 1;

    use atomization to prepare silver alloy powder and copper alloy powder, and use smelting process to prepare solder;

    Step 2;

    silver alloy powder and copper alloy powder are carried out oxidation processes, obtains silver oxide alloy powder and copper oxide alloysPowder;

    Step 3;

    by alloy silver powder and the copper alloy powder of step 2 gained, uses powder mixing method, adds additive, and abrasive material mixesClose, respectively obtain silver alloy and mix powder and copper alloy mixes powder;

    Step 4;

    silver alloy is mixed powder and copper alloy mixes powder and is shaped respectively, sinters and obtain ag alloy layer ingot blank and copper alloyLayer ingot blank;

    Step 5;

    obtained ag alloy layer ingot blank, copper alloy layer ingot blank, carries out multiple pressure, extrudes and rolling obtains ag alloy layer bandMaterial, copper alloy layer band;

    Step 6;

    solder is made solder layer band;

    Step 7;

    ag alloy layer band, copper alloy layer band, solder band are sequentially overlapped and carry out hot being combined together;

    Step 8;

    the band after heat being combined is prepared as three layers of composite contact through techniques such as cold rolling, punching.

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