JPS559941B2 - - Google Patents
Info
- Publication number
- JPS559941B2 JPS559941B2 JP9783873A JP9783873A JPS559941B2 JP S559941 B2 JPS559941 B2 JP S559941B2 JP 9783873 A JP9783873 A JP 9783873A JP 9783873 A JP9783873 A JP 9783873A JP S559941 B2 JPS559941 B2 JP S559941B2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/402—Non-consumable electrodes; C-electrodes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0031—Matrix based on refractory metals, W, Mo, Nb, Hf, Ta, Zr, Ti, V or alloys thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/04—Incandescent bodies characterised by the material thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12021—All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00285939A US3853491A (en) | 1972-09-01 | 1972-09-01 | Tungsten filament having uniform concentration gradient of thoria particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4987167A JPS4987167A (US20080094685A1-20080424-C00004.png) | 1974-08-21 |
| JPS559941B2 true JPS559941B2 (US20080094685A1-20080424-C00004.png) | 1980-03-13 |
Family
ID=23096340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9783873A Expired JPS559941B2 (US20080094685A1-20080424-C00004.png) | 1972-09-01 | 1973-09-01 |
Country Status (8)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016446A (en) * | 1975-01-31 | 1977-04-05 | Westinghouse Electric Corporation | Refractory-oxide-based incandescible radiators and method of making |
| US4086087A (en) * | 1976-12-27 | 1978-04-25 | Lisa Marie Morris | Process for the preparation of powdered metal parts |
| DE3309069C1 (de) * | 1983-03-14 | 1984-06-20 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Elektrode,insbesondere fuer WIG-Schweissverfahren |
| US5590386A (en) * | 1995-07-26 | 1996-12-31 | Osram Sylvania Inc. | Method of making an alloy of tungsten and lanthana |
| JP5086503B2 (ja) * | 2001-02-02 | 2012-11-28 | 株式会社東芝 | トリウムタングステン線の製造方法 |
| JP3640947B2 (ja) * | 2002-10-07 | 2005-04-20 | 株式会社東芝 | イオン源、イオン注入装置、半導体装置の製造方法 |
| WO2005073418A1 (ja) * | 2004-01-30 | 2005-08-11 | Nippon Tungsten Co., Ltd. | タングステン系焼結体およびその製造方法 |
| US7648933B2 (en) | 2006-01-13 | 2010-01-19 | Dynamic Abrasives Llc | Composition comprising spinel crystals, glass, and calcium iron silicate |
| JP5414828B2 (ja) * | 2012-04-12 | 2014-02-12 | 株式会社東芝 | トリウムタングステン合金、トリウムタングステン線、トリウムタングステン線コイル、ならびに電子管用陰極構体 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1082933A (en) * | 1912-06-19 | 1913-12-30 | Gen Electric | Tungsten and method of making the same for use as filaments of incandescent electric lamps and for other purposes. |
| US2798808A (en) * | 1953-02-02 | 1957-07-09 | Westinghouse Electric Corp | Method of introducing zirconia into tungsten powder preliminary to forming electrodes |
| US2846339A (en) * | 1953-10-21 | 1958-08-05 | Honeywell Regulator Co | Method of forming an electron emitting body |
| US3278281A (en) * | 1957-09-13 | 1966-10-11 | Westinghouse Electric Corp | Thoriated tungsten filament or wire and method of making same |
| US3105290A (en) * | 1958-12-18 | 1963-10-01 | Westinghouse Electric Corp | Cathode for electron discharge device |
| AT261237B (de) * | 1963-11-20 | 1968-04-10 | Egyesuelt Izzolampa | Verfahren zur Herstellung von zumindest einen Zusatz enthaltenden, auf pulvermetallurgischem Wege erhaltenen Metallkörpern |
| US3475159A (en) * | 1967-01-16 | 1969-10-28 | Dow Chemical Co | Method for preparing tungsten powders doped with refractory metal oxides |
-
1972
- 1972-09-01 US US00285939A patent/US3853491A/en not_active Expired - Lifetime
-
1973
- 1973-08-23 FR FR7330601A patent/FR2197994B1/fr not_active Expired
- 1973-08-28 BE BE135016A patent/BE804110A/xx unknown
- 1973-08-28 GB GB4042473A patent/GB1451234A/en not_active Expired
- 1973-08-28 DE DE732343278A patent/DE2343278C3/de not_active Expired
- 1973-08-31 NL NL7312096A patent/NL7312096A/xx unknown
- 1973-09-01 JP JP9783873A patent/JPS559941B2/ja not_active Expired
- 1973-09-03 BR BR6820/73A patent/BR7306820D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE804110A (fr) | 1973-12-17 |
| JPS4987167A (US20080094685A1-20080424-C00004.png) | 1974-08-21 |
| FR2197994A1 (US20080094685A1-20080424-C00004.png) | 1974-03-29 |
| DE2343278A1 (de) | 1974-03-21 |
| DE2343278B2 (de) | 1978-07-20 |
| FR2197994B1 (US20080094685A1-20080424-C00004.png) | 1976-05-07 |
| GB1451234A (en) | 1976-09-29 |
| US3853491A (en) | 1974-12-10 |
| NL7312096A (US20080094685A1-20080424-C00004.png) | 1974-03-05 |
| BR7306820D0 (pt) | 1974-06-27 |
| DE2343278C3 (de) | 1979-03-08 |
