JPS5554501A - Production of wristwatch case - Google Patents
Production of wristwatch caseInfo
- Publication number
- JPS5554501A JPS5554501A JP12585878A JP12585878A JPS5554501A JP S5554501 A JPS5554501 A JP S5554501A JP 12585878 A JP12585878 A JP 12585878A JP 12585878 A JP12585878 A JP 12585878A JP S5554501 A JPS5554501 A JP S5554501A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- wristwatch case
- molding
- braze material
- sintering
- 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
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To achieve the improvement in the appearance of the wristwatch case which is sintered and forged and the improvement of its corrosion resistance by compounding powder or small lumps of braze material in metal powder in the fore- process of powder molding.
CONSTITUTION: Powder braze or small lumps of braze material are mixed in metal powder in the range up to 30% in the mixing process of powder. At the time when the molding sinters in this sintering process, the braze material completely fills the continuous pores from the inside and finally oozes to the surface layer, whereby the pore sealing is accelerated. In succession to the sintering process, the molding undergoes post-forging process and finishing process, whereby the wristwatch case is produced. By this sintering and forging method, the cost reduction effect of the wristwatch case is expected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12585878A JPS5554501A (en) | 1978-10-12 | 1978-10-12 | Production of wristwatch case |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12585878A JPS5554501A (en) | 1978-10-12 | 1978-10-12 | Production of wristwatch case |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5554501A true JPS5554501A (en) | 1980-04-21 |
Family
ID=14920677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12585878A Pending JPS5554501A (en) | 1978-10-12 | 1978-10-12 | Production of wristwatch case |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554501A (en) |
-
1978
- 1978-10-12 JP JP12585878A patent/JPS5554501A/en active Pending
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