The hot forming of refractory alloy surgical needles

The hot forming of refractory alloy surgical needles

  • CN 103,691,851 B
  • Filed: 06/02/2008
  • Issued: 10/13/2017
  • Est. Priority Date: 06/01/2007
  • Status: Active Grant
First Claim
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1. a kind of method that refractory alloy is configured to needle, methods described includes:

  • Alloy metal needle blank is provided, the pin blank includes refractory metal alloy;

    The ductil-brittle transition temperature of the alloy is heated to above by least one section of the pin blank but less than the recrystallization temperature of the alloyThe temperature of degree;

    AndThe pin blank is mechanically formed into needle,At least one section of wherein described pin blank carries out in situ during the mechanical molding of the pin blank or before shaping is facedHeating, and coloration in-situ is carried out by surface oxidation.

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