JPS57164979A - Production of external parts for timepieces - Google Patents

Production of external parts for timepieces

Info

Publication number
JPS57164979A
JPS57164979A JP5158381A JP5158381A JPS57164979A JP S57164979 A JPS57164979 A JP S57164979A JP 5158381 A JP5158381 A JP 5158381A JP 5158381 A JP5158381 A JP 5158381A JP S57164979 A JPS57164979 A JP S57164979A
Authority
JP
Japan
Prior art keywords
plating
alloy
zinc
plated
corrosion resistance
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
JP5158381A
Other languages
Japanese (ja)
Inventor
Yoshio Morita
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 JP5158381A priority Critical patent/JPS57164979A/en
Publication of JPS57164979A publication Critical patent/JPS57164979A/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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
    • C23C14/025—Metallic sublayers

Landscapes

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

Abstract

PURPOSE:To obtain zinc external parts of a golden color easily without using gold by wet plating three layers of Cu, Ni, Cr beforehand on a zinc die cast alloy watch in the stage of forming a TiN film by ion plating on said watch. CONSTITUTION:In order to maintain the basic corrosion resistance of a zinc alloy base material, Cu and Ni are plated as undercoating and Cr is plated as top coating. A TiN alloy is plated on the zinc alloy base material applied with the three layers of the plating. At this time, a zinc alloy has a low m.p. and therefore if it is heated in a vacuum, its vapor pressure hampers the PVD. In order to prevent this, it is necessary to cover to zinc alloy completely with the undercoating plating so that no parts of the alloy expose. This entails coating Cu of good leveling characteristic thereon to prevent the formation of pinholes and to electrodeposit of Ni of relatively good corrosion resistance thereon. The Cr plating is required for the purpose of improving corrosion resistance and TiN platability.
JP5158381A 1981-04-06 1981-04-06 Production of external parts for timepieces Pending JPS57164979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5158381A JPS57164979A (en) 1981-04-06 1981-04-06 Production of external parts for timepieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5158381A JPS57164979A (en) 1981-04-06 1981-04-06 Production of external parts for timepieces

Publications (1)

Publication Number Publication Date
JPS57164979A true JPS57164979A (en) 1982-10-09

Family

ID=12890954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5158381A Pending JPS57164979A (en) 1981-04-06 1981-04-06 Production of external parts for timepieces

Country Status (1)

Country Link
JP (1) JPS57164979A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105420769A (en) * 2015-12-24 2016-03-23 张颖 Tourist souvenir furnishing article
CN109576705A (en) * 2018-12-15 2019-04-05 惠州Tcl移动通信有限公司 Processing method, metal shell and the mobile terminal of metal shell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5379577A (en) * 1976-12-24 1978-07-14 Tsuneo Nishida Case elements for timepiece
JPS54110941A (en) * 1978-02-20 1979-08-30 Matsushita Refrigeration Corrosion control of zinc metal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5379577A (en) * 1976-12-24 1978-07-14 Tsuneo Nishida Case elements for timepiece
JPS54110941A (en) * 1978-02-20 1979-08-30 Matsushita Refrigeration Corrosion control of zinc metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105420769A (en) * 2015-12-24 2016-03-23 张颖 Tourist souvenir furnishing article
CN109576705A (en) * 2018-12-15 2019-04-05 惠州Tcl移动通信有限公司 Processing method, metal shell and the mobile terminal of metal shell

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