Invention Grant
- Patent Title: Hard coating film and hard coating film coated working tool
- Patent Title (中): 硬涂膜和硬涂层涂层工作工具
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Application No.: US13054019Application Date: 2008-07-14
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Publication No.: US08697229B2Publication Date: 2014-04-15
- Inventor: Hiroaki Sugita , Takaomi Toihara , Takamasa Suzuki
- Applicant: Hiroaki Sugita , Takaomi Toihara , Takamasa Suzuki
- Applicant Address: JP Toyokawa-shi
- Assignee: OSG Corporation
- Current Assignee: OSG Corporation
- Current Assignee Address: JP Toyokawa-shi
- Agency: Oliff PLC.
- International Application: PCT/JP2008/062725 WO 20080714
- International Announcement: WO2010/007661 WO 20100121
- Main IPC: B32B7/02
- IPC: B32B7/02 ; B32B9/04 ; C09C1/28 ; B23P15/28

Abstract:
A hard coating film formed on a surface of a predetermined member and having excellent wear resistance and adhesion resistance, the hard coating film includes: a three-layer structure composed of a third layer formed in contact with the surface of the predetermined member, a second layer formed on the third layer, and a first layer formed on the second layer to constitute the surface; the first layer being made of (Cr1-a-bBa(SiC)b)(CcOdN1-c-d) [provided that SiC is silicon carbide, and a, b, c and d are atomic ratios in ranges of 0≦a≦0.2, 0.01≦b≦0.2, 0≦c≦0.5 and 0≦d≦0.3, respectively; the second layer being made of AlCrN or AlCrDN [provided that D includes either one kind of elements of a Group IVa, a Group Va and a Group VIa (except Cr) of a Periodic Table of Elements and Y, or SiC (silicon carbide)]; and the third layer being made of nitride, carbon nitride or carbide of metals including elements of one kind or more kinds of Al, Ti, Zr, Hf, V, Nb, Ta, Cr and W.
Public/Granted literature
- US20110117342A1 HARD COATING FILM AND HARD COATING FILM COATED WORKING TOOL Public/Granted day:2011-05-19
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