JPS5798651A - Hard external parts for watch - Google Patents
Hard external parts for watchInfo
- Publication number
- JPS5798651A JPS5798651A JP17519380A JP17519380A JPS5798651A JP S5798651 A JPS5798651 A JP S5798651A JP 17519380 A JP17519380 A JP 17519380A JP 17519380 A JP17519380 A JP 17519380A JP S5798651 A JPS5798651 A JP S5798651A
- Authority
- JP
- Japan
- Prior art keywords
- watch
- external parts
- watchcase
- tic
- hard external
- 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.)
- Granted
Links
Abstract
PURPOSE: To obtain hard external parts for a watch with superior impact resistance by working TiC contg. a specified percentage each of Ni, Cr, Mo and Fe.
CONSTITUTION: This invention relates external parts for a watch, especially the watchcase. A composition consisting of, by wt., 5.0W30% Ni, 4.0W15% Cr, 2W 10% Mo, <5% Fe and the balance TiC with inevitable impurities is sintered at about 1,500W1,700°C after HIP treatment, and this sintered body is subjected to electric spark machining, polishing and mirror finishing. The resulting watchcase has about 140W160kg/mm2 deflective strength and about Hv 1,000W1,500 hardness, and the surface shows brilliant luster.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17519380A JPS5798651A (en) | 1980-12-11 | 1980-12-11 | Hard external parts for watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17519380A JPS5798651A (en) | 1980-12-11 | 1980-12-11 | Hard external parts for watch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5798651A true JPS5798651A (en) | 1982-06-18 |
JPH0158262B2 JPH0158262B2 (en) | 1989-12-11 |
Family
ID=15991910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17519380A Granted JPS5798651A (en) | 1980-12-11 | 1980-12-11 | Hard external parts for watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5798651A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62297442A (en) * | 1986-05-28 | 1987-12-24 | アルストム | Protective blade end for titanium blade and method for soldering the same |
-
1980
- 1980-12-11 JP JP17519380A patent/JPS5798651A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62297442A (en) * | 1986-05-28 | 1987-12-24 | アルストム | Protective blade end for titanium blade and method for soldering the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0158262B2 (en) | 1989-12-11 |
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