Invention Grant
US08764914B2 Aqueous quenching media and use thereof in quenching metal substrates
有权
水淬火介质及其在淬火金属基材中的应用
- Patent Title: Aqueous quenching media and use thereof in quenching metal substrates
- Patent Title (中): 水淬火介质及其在淬火金属基材中的应用
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Application No.: US12981589Application Date: 2010-12-30
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Publication No.: US08764914B2Publication Date: 2014-07-01
- Inventor: Laura Gunsalus , Joseph F. Warchol
- Applicant: Laura Gunsalus , Joseph F. Warchol
- Applicant Address: US DE Wilmington
- Assignee: Houghton Technical Corp.
- Current Assignee: Houghton Technical Corp.
- Current Assignee Address: US DE Wilmington
- Agency: Howson & Howson LLP
- Main IPC: C21D1/60
- IPC: C21D1/60 ; C21D1/56
Abstract:
Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
Public/Granted literature
- US20110094638A1 Aqueous Quenching Media and Use Thereof in Quenching Metal Substrates Public/Granted day:2011-04-28
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