DE3787360T2 - Uhrengehäuseteil. - Google Patents
Uhrengehäuseteil.Info
- Publication number
- DE3787360T2 DE3787360T2 DE87119033T DE3787360T DE3787360T2 DE 3787360 T2 DE3787360 T2 DE 3787360T2 DE 87119033 T DE87119033 T DE 87119033T DE 3787360 T DE3787360 T DE 3787360T DE 3787360 T2 DE3787360 T2 DE 3787360T2
- Authority
- DE
- Germany
- Prior art keywords
- machined
- watch case
- base part
- workpiece
- hard metal
- 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
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 238000009792 diffusion process Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 7
- 229910009043 WC-Co Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 13
- 238000009760 electrical discharge machining Methods 0.000 description 7
- 238000005476 soldering Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 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)
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 |
|---|---|
| DE3787360D1 DE3787360D1 (de) | 1993-10-14 |
| DE3787360T2 true DE3787360T2 (de) | 1994-01-13 |
Family
ID=18050356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE87119033T Expired - Fee Related DE3787360T2 (de) | 1986-12-29 | 1987-12-22 | Uhrengehäuseteil. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0273359B1 (enExample) |
| JP (1) | JPS63168585A (enExample) |
| KR (1) | KR940001046B1 (enExample) |
| DE (1) | DE3787360T2 (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60221874T2 (de) * | 2001-09-21 | 2008-01-17 | Citizen Holdings Co., Ltd., Nishitokyo | Externes teil einer uhr und verfahren zu herstellung des teils |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50126468A (enExample) * | 1974-03-26 | 1975-10-04 | ||
| JPS53149149A (en) * | 1977-06-01 | 1978-12-26 | Hitachi Ltd | Diffusion welding method |
| US4252862A (en) * | 1977-06-10 | 1981-02-24 | Nobuo Nishida | Externally ornamental golden colored part |
| JPS5588991A (en) * | 1978-12-27 | 1980-07-05 | Seiko Epson Corp | Production of external decorative parts for portable watch |
| GB2094034B (en) * | 1981-02-20 | 1985-01-30 | Citizen Watch Co Ltd | Structure of watch case |
| JPS58128281A (ja) * | 1982-01-27 | 1983-07-30 | Hitachi Ltd | 超硬合金と鋼との拡散接合方法 |
| US4702769A (en) * | 1982-05-21 | 1987-10-27 | Toshiba Tungaloy Co., Ltd. | Sintered alloy for decoration |
-
1986
- 1986-12-29 JP JP61314191A patent/JPS63168585A/ja active Granted
-
1987
- 1987-12-22 DE DE87119033T patent/DE3787360T2/de not_active Expired - Fee Related
- 1987-12-22 EP EP87119033A patent/EP0273359B1/en not_active Expired - Lifetime
- 1987-12-29 KR KR1019870015209A patent/KR940001046B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63168585A (ja) | 1988-07-12 |
| EP0273359A2 (en) | 1988-07-06 |
| KR880008097A (ko) | 1988-08-30 |
| EP0273359B1 (en) | 1993-09-08 |
| EP0273359A3 (en) | 1989-05-10 |
| JPH0575277B2 (enExample) | 1993-10-20 |
| KR940001046B1 (ko) | 1994-02-08 |
| DE3787360D1 (de) | 1993-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |