- 专利标题： Chemical activation of self-passivating metals
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申请号： US17112076申请日： 2020-12-04
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公开(公告)号： US12129556B2公开(公告)日： 2024-10-29
- 发明人: Cyprian Adair William Illing , Peter C. Williams , Christina Semkow , Todd Johns
- 申请人： SWAGELOK COMPANY
- 申请人地址： US OH Solon
- 专利权人： SWAGELOK COMPANY
- 当前专利权人： SWAGELOK COMPANY
- 当前专利权人地址： US OH Solon
- 代理机构： Calfee, Halter & Griswold LLP
- 主分类号： C23C8/22
- IPC分类号： C23C8/22 ; C21D1/06 ; C23C8/26 ; C23C8/30 ; C23C8/32
摘要：
A method for treating a workpiece made from a self-passivating metal and having a Beilby layer is disclosed. The method comprises exposing the workpiece to the vapors produced by heating a reagent having a guanidine [HNC(NH2)2] moiety and complexed with HCl to activate the workpiece for low temperature interstitial surface hardening.
公开/授权文献
- US20210172046A1 CHEMICAL ACTIVATION OF SELF-PASSIVATING METALS 公开/授权日：2021-06-10
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