GB1397865A - Tungsten incandescent body containing dopant substances and procedure for its preparation - Google Patents
Tungsten incandescent body containing dopant substances and procedure for its preparationInfo
- Publication number
- GB1397865A GB1397865A GB1119873A GB1119873A GB1397865A GB 1397865 A GB1397865 A GB 1397865A GB 1119873 A GB1119873 A GB 1119873A GB 1119873 A GB1119873 A GB 1119873A GB 1397865 A GB1397865 A GB 1397865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- procedure
- preparation
- body containing
- containing dopant
- incandescent body
- 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
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052721 tungsten Inorganic materials 0.000 title abstract 3
- 239000010937 tungsten Substances 0.000 title abstract 3
- 239000002019 doping agent Substances 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 229910052716 thallium Inorganic materials 0.000 abstract 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 abstract 1
- 238000005491 wire drawing Methods 0.000 abstract 1
Classifications
-
- 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
- H01K1/10—Bodies of metal or carbon combined with other substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Radiation-Therapy Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUMA2339A HU163582B (enrdf_load_stackoverflow) | 1972-03-16 | 1972-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1397865A true GB1397865A (en) | 1975-06-18 |
Family
ID=10998565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1119873A Expired GB1397865A (en) | 1972-03-16 | 1973-03-07 | Tungsten incandescent body containing dopant substances and procedure for its preparation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3853492A (enrdf_load_stackoverflow) |
| AT (1) | AT316686B (enrdf_load_stackoverflow) |
| DE (1) | DE2246092A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2221812B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1397865A (enrdf_load_stackoverflow) |
| HU (1) | HU163582B (enrdf_load_stackoverflow) |
| NL (1) | NL7303655A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2839542B2 (ja) * | 1989-04-05 | 1998-12-16 | 株式会社東芝 | 耐振性タングステン線、それを用いた電球用フィラメントおよびハロゲン電球 |
| US5019330A (en) * | 1990-08-03 | 1991-05-28 | General Electric Company | Method of forming improved tungsten ingots |
| US6129890A (en) * | 1999-09-07 | 2000-10-10 | Osram Sylvania Inc. | Method of making non-sag tungsten wire |
| US6165412A (en) * | 1999-09-07 | 2000-12-26 | Osram Sylvania Inc. | Method of making non-sag tungsten wire for electric lamps |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2948609A (en) * | 1960-08-09 | Manufacture of metal articles from | ||
| US1602526A (en) * | 1922-09-15 | 1926-10-12 | Westinghouse Lamp Co | Control of crystal development in refractory metals |
| GB258642A (en) * | 1925-06-20 | 1926-09-20 | Edison Swan Electric Co Ltd | Improvements in and relating to tungsten wire |
| GB427757A (en) * | 1933-05-19 | 1935-04-30 | Yukitoshi Sakakura | Incandescence bodies and methods of making the same for use as filaments of incandescent electric lamps and for other purposes |
| NL132462C (enrdf_load_stackoverflow) * | 1963-09-20 | |||
| DE1533395A1 (de) * | 1966-03-11 | 1969-12-18 | Tokvo Shibaura Electric Co Ltd | Wolframstoffe mit verbesserter Biegsamkeit,Methode fuer deren Bearbeitung sowie aus diesen Stoffen hergestellte Bauteile |
| US3475159A (en) * | 1967-01-16 | 1969-10-28 | Dow Chemical Co | Method for preparing tungsten powders doped with refractory metal oxides |
| US3682720A (en) * | 1970-03-19 | 1972-08-08 | Sylvania Electric Prod | Manufacture of substantially non-sagging refractory metal wire |
| US3798008A (en) * | 1972-09-12 | 1974-03-19 | Egyesuelt Izzolampa | Retentive tungsten body containing 20{14 50 ppm titanium and/or zirconium |
-
1972
- 1972-03-16 HU HUMA2339A patent/HU163582B/hu unknown
- 1972-06-27 US US00266578A patent/US3853492A/en not_active Expired - Lifetime
- 1972-09-18 AT AT800072A patent/AT316686B/de active
- 1972-09-20 DE DE2246092A patent/DE2246092A1/de active Pending
-
1973
- 1973-03-07 GB GB1119873A patent/GB1397865A/en not_active Expired
- 1973-03-15 NL NL7303655A patent/NL7303655A/xx unknown
- 1973-03-15 FR FR7309382A patent/FR2221812B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3853492A (en) | 1974-12-10 |
| FR2221812B1 (enrdf_load_stackoverflow) | 1976-11-05 |
| FR2221812A1 (enrdf_load_stackoverflow) | 1974-10-11 |
| DE2246092A1 (de) | 1973-09-27 |
| NL7303655A (enrdf_load_stackoverflow) | 1973-09-18 |
| AT316686B (de) | 1974-07-25 |
| HU163582B (enrdf_load_stackoverflow) | 1973-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |