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公开(公告)号:US5814166A
公开(公告)日:1998-09-29
申请号:US748875
申请日:1996-11-14
CPC分类号: A61M5/32 , C21D1/773 , C21D9/26 , A61B17/06066 , C21D2241/01 , C21D6/004
摘要: A continuous process for heat treating and cleaning and tempering martensitic stainless steel surgical needles is disclosed. The method comprises exposing the surgical needles to a partial vacuum at a temperature less than the heat treating temperature to remove volatile surface contaminant. Then the needles are heat treated in an argon gas environment at a pressure equal to or greater than 1.0 Torr. Next the temperature of the oven is lowered to temper the needles.
摘要翻译: 公开了一种用于热处理和清洁和回火马氏体不锈钢手术针的连续方法。 该方法包括在小于热处理温度的温度下将手术针暴露于部分真空以除去挥发性表面污染物。 然后将针在氩气环境中以等于或大于1.0托的压力进行热处理。 接下来,烘箱的温度降低以使针头回火。
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公开(公告)号:US5783001A
公开(公告)日:1998-07-21
申请号:US748845
申请日:1996-11-14
CPC分类号: C21D9/26 , B08B7/0071 , C21D6/004 , C21D1/773 , C21D2241/01 , C21D6/02
摘要: A method of heat treating and cleaning maraging or precipitation hardening stainless steel surgical needles is disclosed. The method comprises exposing the surgical needles to a partial vacuum at a temperature less than the aging temperature to remove volatile surface contaminants. Then the needles are heat treated in an argon gas environment at a pressure equal to or greater than 1.0 atmosphere.
摘要翻译: 公开了一种热处理和清洗马氏体时效或沉淀硬化不锈钢手术针的方法。 该方法包括在小于老化温度的温度下将手术针暴露于部分真空以除去挥发性表面污染物。 然后在等于或大于1.0气压的氩气环境中对针进行热处理。
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