JPH0575277B2 - - Google Patents
Info
- Publication number
- JPH0575277B2 JPH0575277B2 JP61314191A JP31419186A JPH0575277B2 JP H0575277 B2 JPH0575277 B2 JP H0575277B2 JP 61314191 A JP61314191 A JP 61314191A JP 31419186 A JP31419186 A JP 31419186A JP H0575277 B2 JPH0575277 B2 JP H0575277B2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- base member
- cemented carbide
- watch frame
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 38
- 238000009792 diffusion process Methods 0.000 claims description 25
- 238000005245 sintering Methods 0.000 claims description 23
- 238000003754 machining Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910009043 WC-Co Inorganic materials 0.000 claims description 3
- 238000001513 hot isostatic pressing Methods 0.000 description 9
- 238000005219 brazing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009760 electrical discharge machining Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/08—Hermetic sealing of openings, joints, passages or slits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Powder Metallurgy (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314191A JPS63168585A (ja) | 1986-12-29 | 1986-12-29 | 時計枠用加工素材およびその製造方法 |
| DE87119033T DE3787360T2 (de) | 1986-12-29 | 1987-12-22 | Uhrengehäuseteil. |
| EP87119033A EP0273359B1 (de) | 1986-12-29 | 1987-12-22 | Uhrengehäuseteil |
| KR1019870015209A KR940001046B1 (ko) | 1986-12-29 | 1987-12-29 | 시계 케이스용 가공소재 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61314191A JPS63168585A (ja) | 1986-12-29 | 1986-12-29 | 時計枠用加工素材およびその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63168585A JPS63168585A (ja) | 1988-07-12 |
| JPH0575277B2 true JPH0575277B2 (de) | 1993-10-20 |
Family
ID=18050356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61314191A Granted JPS63168585A (ja) | 1986-12-29 | 1986-12-29 | 時計枠用加工素材およびその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0273359B1 (de) |
| JP (1) | JPS63168585A (de) |
| KR (1) | KR940001046B1 (de) |
| DE (1) | DE3787360T2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003027777A1 (fr) * | 2001-09-21 | 2003-04-03 | Citizen Watch Co., Ltd. | Boîtier de montre et procédé de fabrication |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50126468A (de) * | 1974-03-26 | 1975-10-04 | ||
| JPS53149149A (en) * | 1977-06-01 | 1978-12-26 | Hitachi Ltd | Diffusion welding method |
| JPS5588991A (en) * | 1978-12-27 | 1980-07-05 | Seiko Epson Corp | Production of external decorative parts for portable watch |
| JPS58128281A (ja) * | 1982-01-27 | 1983-07-30 | Hitachi Ltd | 超硬合金と鋼との拡散接合方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252862A (en) * | 1977-06-10 | 1981-02-24 | Nobuo Nishida | Externally ornamental golden colored part |
| GB2094034B (en) * | 1981-02-20 | 1985-01-30 | Citizen Watch Co Ltd | Structure of watch case |
| US4702769A (en) * | 1982-05-21 | 1987-10-27 | Toshiba Tungaloy Co., Ltd. | Sintered alloy for decoration |
| JPS6240357A (ja) * | 1985-08-14 | 1987-02-21 | Seiko Instr & Electronics Ltd | 溶射ケ−スの製造方法 |
-
1986
- 1986-12-29 JP JP61314191A patent/JPS63168585A/ja active Granted
-
1987
- 1987-12-22 EP EP87119033A patent/EP0273359B1/de not_active Expired - Lifetime
- 1987-12-22 DE DE87119033T patent/DE3787360T2/de not_active Expired - Fee Related
- 1987-12-29 KR KR1019870015209A patent/KR940001046B1/ko not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50126468A (de) * | 1974-03-26 | 1975-10-04 | ||
| JPS53149149A (en) * | 1977-06-01 | 1978-12-26 | Hitachi Ltd | Diffusion welding method |
| JPS5588991A (en) * | 1978-12-27 | 1980-07-05 | Seiko Epson Corp | Production of external decorative parts for portable watch |
| JPS58128281A (ja) * | 1982-01-27 | 1983-07-30 | Hitachi Ltd | 超硬合金と鋼との拡散接合方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940001046B1 (ko) | 1994-02-08 |
| DE3787360D1 (de) | 1993-10-14 |
| EP0273359A2 (de) | 1988-07-06 |
| EP0273359B1 (de) | 1993-09-08 |
| DE3787360T2 (de) | 1994-01-13 |
| JPS63168585A (ja) | 1988-07-12 |
| KR880008097A (ko) | 1988-08-30 |
| EP0273359A3 (en) | 1989-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |