Invention Grant
- Patent Title: Hard coating having excellent adhesion resistance to soft metal
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Application No.: US14443243Application Date: 2013-12-17
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Publication No.: US09751809B2Publication Date: 2017-09-05
- Inventor: Kenji Yamamoto
- Applicant: KOBE STEEL, LTD.
- Applicant Address: JP Kobe-shi
- Assignee: Kobe Steel, Ltd.
- Current Assignee: Kobe Steel, Ltd.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-279768 20121221
- International Application: PCT/JP2013/083787 WO 20131217
- International Announcement: WO2014/098091 WO 20140626
- Main IPC: C23C14/06
- IPC: C23C14/06 ; C04B35/581 ; C04B35/58 ; B21D37/01 ; B21D22/02

Abstract:
Provided is a hard coating film which is hardly adhered to a soft metal and is suitable for the coating of, for example, the surface of a hot pressing mold that may be in contact with the soft metal. The hard coating film is characterized in that, on the surface of the hard coating film, the arithmetic average roughness (Ra) is 0.05 μm or less and the average number of pin holes each having an equivalent circle diameter of 1 μm or more is 5 or less per field when at least five fields each having a size of 45×65 μm are observed on a scanning electron microscope at 2000-fold magnification.
Public/Granted literature
- US20150336851A1 HARD COATING HAVING EXCELLENT ADHESION RESISTANCE TO SOFT METAL Public/Granted day:2015-11-26
Information query
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