JPS5684464A - Hard exterior part for time piece - Google Patents

Hard exterior part for time piece

Info

Publication number
JPS5684464A
JPS5684464A JP16198279A JP16198279A JPS5684464A JP S5684464 A JPS5684464 A JP S5684464A JP 16198279 A JP16198279 A JP 16198279A JP 16198279 A JP16198279 A JP 16198279A JP S5684464 A JPS5684464 A JP S5684464A
Authority
JP
Japan
Prior art keywords
time piece
exterior part
hardness
resistance
nitride layers
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
JP16198279A
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 JP16198279A priority Critical patent/JPS5684464A/en
Publication of JPS5684464A publication Critical patent/JPS5684464A/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

Landscapes

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

Abstract

PURPOSE:To obtain a hard exterior part for time piece, having a high wear resistance, a high corrosion resistance, and a high scratching resistance, by forming one or more golden nitride layers of a specific thickness and a specific hardness on the surface of a time piece case composed of an Ni-based alloy with Cr and Al, having a given hardness. CONSTITUTION:A time piece case is manufactured from a Ni-based alloy containing 10-50wt% Cr and 1.0-6wt% Al and having a micro-Vickers hardness of 300- 900Hv. Then, on the time piece case, at least one of golden nitride layers of TiN, TaN, ZrN, HfN, etc., is formed by an ion plating method, for example, to obtain a hard exterior part for a time piece. The thickness of the nitride layers should be 0.1-20mum and the hardness should be 900-2,500Hv. Thus, a wear-resistance, scratch-proof, crack-proof even when fallen, and good lustrous exterior part for time piece can be obtained.
JP16198279A 1979-12-13 1979-12-13 Hard exterior part for time piece Pending JPS5684464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16198279A JPS5684464A (en) 1979-12-13 1979-12-13 Hard exterior part for time piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16198279A JPS5684464A (en) 1979-12-13 1979-12-13 Hard exterior part for time piece

Publications (1)

Publication Number Publication Date
JPS5684464A true JPS5684464A (en) 1981-07-09

Family

ID=15745770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16198279A Pending JPS5684464A (en) 1979-12-13 1979-12-13 Hard exterior part for time piece

Country Status (1)

Country Link
JP (1) JPS5684464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121314A2 (en) * 1983-04-04 1984-10-10 Borg-Warner Corporation High hardness hafnium nitride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121314A2 (en) * 1983-04-04 1984-10-10 Borg-Warner Corporation High hardness hafnium nitride

Similar Documents

Publication Publication Date Title
GB1500780A (en) Mcraly type coating alloy
GB1532801A (en) Metallic coatings
JPS5681670A (en) Exterior parts for watch
JPS5684464A (en) Hard exterior part for time piece
FR2454471B1 (en)
JPS569365A (en) Surface coated solid carbide alloy material
JPS5684469A (en) Exterior parts for watch
JPS5798671A (en) Hard external parts for timepiece
JPS5332888A (en) Case for hand watch
JPS563678A (en) Manufacture of dial plate of watch
JPS56152964A (en) Exterior decorative parts for watch
JPS54139815A (en) Sintered hard alloy having hardened surface layer
JPS5696073A (en) Hard exterior decorative parts for watch
JPS5696074A (en) Hard exterior decorative parts for watch
JPS55164069A (en) Manufacture of hand for time piece
GB1396898A (en) Method for making ferrous metal having highly improved resistances to corrosion at elevated temperatures and to oxidization
Dudko The Nature of the High Hardness of Vacuum Deposited Chromium
JPS537527A (en) Corrosion-resisting magnetic material
JPS6421060A (en) High-corrosion resistant product plated with al-cr alloy and its production
JPS5585695A (en) Ultra heat resisting ultra hard alloy
JPS57181392A (en) External parts made of metal for timepieces
JPS5633446A (en) Alloy
JPS5794599A (en) Silver plated film and electroplating method
JPS57152461A (en) Surface treatment of iron member for increasing corrosion and wear resistance
JPS5354059A (en) Sheathed parts for wrist watch