Invention Grant
- Patent Title: Partial heat treatment method in salt bath at low temperature
- Patent Title (中): 盐浴在低温下的部分热处理方法
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Application No.: US14517526Application Date: 2014-10-17
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Publication No.: US09534284B2Publication Date: 2017-01-03
- Inventor: Eun Sik Noh , Sam Rae Jung
- Applicant: DK-LOK CORPORATION , Sam Rae Jung
- Applicant Address: KR Gimhae, Gyeongsangnam-Do
- Assignee: DK-LOK CORPORATION
- Current Assignee: DK-LOK CORPORATION
- Current Assignee Address: KR Gimhae, Gyeongsangnam-Do
- Agency: Locke Lord LLP
- Agent Christopher J. Capelli; Daniel J. Fiorello
- Priority: KR10-2013-0125866 20131022
- Main IPC: C23C8/56
- IPC: C23C8/56 ; C23C8/04 ; C21D1/06 ; C21D1/46 ; C23C8/50
Abstract:
This invention relates to a surface heat treatment method in a salt bath at low temperature, suitable for partially hardening the surface of a workpiece through heat treatment, including plating the surface of a workpiece with a first metal layer; partially peeling the first metal layer; heat treating the workpiece at a temperature of 400 to 500° C. for a predetermined period of time; and totally peeling the first metal layer. Thereby, low-temperature heat treatment is effective at heat treating the workpiece while minimizing deterioration of corrosion resistance.
Public/Granted literature
- US20150176113A1 PARTIAL HEAT TREATMENT METHOD IN SALT BATH AT LOW TEMPERATURE Public/Granted day:2015-06-25
Information query
IPC分类:
