Wear part with hard facing

Wear part with hard facing

  • CN 102,076,884 A
  • Filed: 09/15/2009
  • Published: 05/25/2011
  • Est. Priority Date: 09/15/2008
  • Status: Active Grant
First Claim
Patent Images

1. wear parts or instrument comprise:

  • The body that contains iron family metal or alloy,By the wear-resistant friction layer of middle layer metallurgical binding in body surface,It is characterized in that;

    -wear-resistant friction layer comprises at least 13 volume % and is selected from WC, TiC, VC, ZrC, NbC, Mo 2The metallic carbide crystal grain of C, HfC and TaC and (Cr, Me) xC yCrystal grain, and the metal matrix that comprises 0.5-20%Cr, 0.2-15%Si and the sosoloid of 0.2-20% carbon is mutually, wherein Me is Fe, Co and/or Ni;

    And -middle layer has the thickness of 0.05-1mm, and the Si that comprises amount is the 0.1-0.7 of the amount in the wear-resistant friction layer, and the chromium amount that comprises is the 0.1-0.6 of the amount in the wear-resistant friction layer, and the amount that comprises the metal of metallic carbide is the 0.2-0.6 of the amount in the wear-resistant friction layer.

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