JPS5798671A - Hard external parts for timepiece - Google Patents

Hard external parts for timepiece

Info

Publication number
JPS5798671A
JPS5798671A JP17519280A JP17519280A JPS5798671A JP S5798671 A JPS5798671 A JP S5798671A JP 17519280 A JP17519280 A JP 17519280A JP 17519280 A JP17519280 A JP 17519280A JP S5798671 A JPS5798671 A JP S5798671A
Authority
JP
Japan
Prior art keywords
external parts
carbonitride
nitride
timepiece
hardened layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17519280A
Other languages
Japanese (ja)
Inventor
Masanobu Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP17519280A priority Critical patent/JPS5798671A/en
Publication of JPS5798671A publication Critical patent/JPS5798671A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

PURPOSE:To provide corrosion resistance and a golden color tone by forming a hardened layer of nitride or carbonitride of Ti, Zr, Hf on the surface of a super hard alloy consisting essentially of TiC and contg. specific amts. of Ni, Cr, Mo, Fe. CONSTITUTION:External parts such as watch cases, bands, etc. of a superhard alloy consisting of 5-30 Ni, 4-15 Cr, 2-10 Mo, <5 Fe by weight % and the balance unavoidable impurities are manufactured. A hardened layer of nitride or carbonitride of Ti, Zr, Hf of 0.1-10mu thicknesses is formed on the surfaces thereof. Above 10mu, chipping occurs in sharp parts such as ridge lines, and below 0.1mu, the uniformity of the film is lost.
JP17519280A 1980-12-11 1980-12-11 Hard external parts for timepiece Pending JPS5798671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17519280A JPS5798671A (en) 1980-12-11 1980-12-11 Hard external parts for timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17519280A JPS5798671A (en) 1980-12-11 1980-12-11 Hard external parts for timepiece

Publications (1)

Publication Number Publication Date
JPS5798671A true JPS5798671A (en) 1982-06-18

Family

ID=15991889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17519280A Pending JPS5798671A (en) 1980-12-11 1980-12-11 Hard external parts for timepiece

Country Status (1)

Country Link
JP (1) JPS5798671A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897311A (en) * 1985-06-12 1990-01-30 Ngk Insulators, Ltd. Metal-ceramic composite bodies
EP0850900A1 (en) * 1996-12-23 1998-07-01 SMH Management Services AG Zirconia based article, its use as wear resistant part of a wristwatch and method for its production
US5928977A (en) * 1996-12-23 1999-07-27 Smh Management Services Ag Zirconia based ceramic article as wear-resistant exterior part for wristwatch
EP0947490A1 (en) * 1998-03-12 1999-10-06 Asulab S.A. Zirconia based article, its use as wear resistant part of a wristwatch and method for its production
US6270907B1 (en) 1998-03-10 2001-08-07 Asulab S.A. Zirconia based article, use of such an article as a wear resistant exterior part for a wristwatch and method for obtaining such an article
US6905758B1 (en) * 1987-08-12 2005-06-14 Citizen Watch Co., Ltd. Decorative item and process for producing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897311A (en) * 1985-06-12 1990-01-30 Ngk Insulators, Ltd. Metal-ceramic composite bodies
US6905758B1 (en) * 1987-08-12 2005-06-14 Citizen Watch Co., Ltd. Decorative item and process for producing the same
EP0850900A1 (en) * 1996-12-23 1998-07-01 SMH Management Services AG Zirconia based article, its use as wear resistant part of a wristwatch and method for its production
US5928977A (en) * 1996-12-23 1999-07-27 Smh Management Services Ag Zirconia based ceramic article as wear-resistant exterior part for wristwatch
US6270907B1 (en) 1998-03-10 2001-08-07 Asulab S.A. Zirconia based article, use of such an article as a wear resistant exterior part for a wristwatch and method for obtaining such an article
US6368468B1 (en) 1998-03-10 2002-04-09 Asulab S.A. Zirconia based article, use of such an article as a wear resistant exterior part for a wristwatch and method for obtaining such an article
CN1327304C (en) * 1998-03-10 2007-07-18 阿苏拉布股份有限公司 Zirconium oxide matrix product, method for obtaining same and use thereof
EP0947490A1 (en) * 1998-03-12 1999-10-06 Asulab S.A. Zirconia based article, its use as wear resistant part of a wristwatch and method for its production

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