JPS5458466A - Production of watch case - Google Patents

Production of watch case

Info

Publication number
JPS5458466A
JPS5458466A JP12485277A JP12485277A JPS5458466A JP S5458466 A JPS5458466 A JP S5458466A JP 12485277 A JP12485277 A JP 12485277A JP 12485277 A JP12485277 A JP 12485277A JP S5458466 A JPS5458466 A JP S5458466A
Authority
JP
Japan
Prior art keywords
impurities
case
inclusions
vessel
specified
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
JP12485277A
Other languages
Japanese (ja)
Inventor
Kotaro Kashima
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP12485277A priority Critical patent/JPS5458466A/en
Publication of JPS5458466A publication Critical patent/JPS5458466A/en
Pending legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To produce high guality watch case by forming case prototype long- length casting relieved of impurities by melting and arc-remelting raw materials to obtain the material.
CONSTITUTION: Specified raw material, such as nickel base alloy and stainless steel, is melted in a vacuum high frequency induction heating furnace to make crude bar. This crude bar is remelted by discharge in vacuum atmosphere or argon gas atmosphere or the like and is collected in a vessel. At the same time, by pouring the molten metal into a water-cooled mold placed underneath the vessel, impurities and inclusions are suspended up in the vessel, and specified case prototype long- length material 1 for watch case is formed by casting. When the material 1 is cut to a specified thickness by linear discharge electrolysis, case prototypes 3... without containing impurities and inclusions are manufactured. Thus, by cutting, grinding and pressing the prototypes 3..., high quality watch cases without scars due to impurities and inclusions may be obtained
COPYRIGHT: (C)1979,JPO&Japio
JP12485277A 1977-10-18 1977-10-18 Production of watch case Pending JPS5458466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12485277A JPS5458466A (en) 1977-10-18 1977-10-18 Production of watch case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12485277A JPS5458466A (en) 1977-10-18 1977-10-18 Production of watch case

Publications (1)

Publication Number Publication Date
JPS5458466A true JPS5458466A (en) 1979-05-11

Family

ID=14895679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12485277A Pending JPS5458466A (en) 1977-10-18 1977-10-18 Production of watch case

Country Status (1)

Country Link
JP (1) JPS5458466A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117131A (en) * 1974-07-01 1976-02-10 Kabel Metallwerke Ghh
JPS5183561A (en) * 1975-01-18 1976-07-22 Eiko Business Machine Co Tokeikeesuno seizohoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117131A (en) * 1974-07-01 1976-02-10 Kabel Metallwerke Ghh
JPS5183561A (en) * 1975-01-18 1976-07-22 Eiko Business Machine Co Tokeikeesuno seizohoho

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