DE1040701B - Verfahren zur Herstellung einer aus einem gepressten und gesinterten Gemisch bestehenden Vorratskathode - Google Patents
Verfahren zur Herstellung einer aus einem gepressten und gesinterten Gemisch bestehenden VorratskathodeInfo
- Publication number
- DE1040701B DE1040701B DEN14060A DEN0014060A DE1040701B DE 1040701 B DE1040701 B DE 1040701B DE N14060 A DEN14060 A DE N14060A DE N0014060 A DEN0014060 A DE N0014060A DE 1040701 B DE1040701 B DE 1040701B
- Authority
- DE
- Germany
- Prior art keywords
- mixture
- pressed
- sintered
- cathode
- powder
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title description 5
- 150000004645 aluminates Chemical class 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000003870 refractory metal Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US608130A US2929133A (en) | 1956-09-05 | 1956-09-05 | Dispenser cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1040701B true DE1040701B (de) | 1958-10-09 |
Family
ID=24435167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN14060A Pending DE1040701B (de) | 1956-09-05 | 1957-08-30 | Verfahren zur Herstellung einer aus einem gepressten und gesinterten Gemisch bestehenden Vorratskathode |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2929133A (OSRAM) |
| BE (1) | BE560502A (OSRAM) |
| DE (1) | DE1040701B (OSRAM) |
| FR (1) | FR1201432A (OSRAM) |
| GB (1) | GB816997A (OSRAM) |
| NL (1) | NL101006C (OSRAM) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055763A (en) * | 1958-07-10 | 1962-09-25 | Jack R Kreigh | Metal-aggregate product |
| CH396213A (de) * | 1961-01-10 | 1965-07-31 | Ciba Geigy | Verfahren zur Herstellung von Anoden für Elektrolytkondensatoren |
| US3275435A (en) * | 1963-11-01 | 1966-09-27 | Gen Electric | Method of production of a dispenser cathode |
| US3269804A (en) * | 1963-11-01 | 1966-08-30 | Gen Electric | Dispenser cathode and method for the production thereof |
| DE1539156B2 (de) * | 1965-06-30 | 1976-09-23 | Siemens AG, 1000 Berlin und 8000 München | Getterpumpanordnung fuer elektronenstrahlroehren und verfahren zum herstellen von getterfaehigen sinterformkoerpern |
| US3558966A (en) * | 1967-03-01 | 1971-01-26 | Semicon Associates Inc | Directly heated dispenser cathode |
| FR2469792A1 (fr) * | 1979-11-09 | 1981-05-22 | Thomson Csf | Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode |
| US4837480A (en) * | 1988-03-28 | 1989-06-06 | Hughes Aircraft Company | Simplified process for fabricating dispenser cathodes |
| DE3913338C2 (de) * | 1989-04-22 | 1999-12-02 | Aeg Elektronische Roehren Gmbh | Einbettmasse, insbesondere für Kathoden von Elektronenröhren, Verfahren zur Herstellung einer solchen Einbettmasse und Verwendung einer solchen Einbettmasse |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT187993B (de) * | 1953-11-18 | 1956-12-10 | Philips Nv | Kathodenkörper für eine elektrische Entladungsröhre |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1552310A (en) * | 1923-07-24 | 1925-09-01 | Gen Electric | Electrode for discharge tubes |
| US1720000A (en) * | 1926-07-28 | 1929-07-09 | Westinghouse Lamp Co | Vibration and sag resistant filament |
| US1883898A (en) * | 1928-12-14 | 1932-10-25 | Westinghouse Electric & Mfg Co | Thermionic cathode |
| US1895354A (en) * | 1929-10-23 | 1933-01-24 | Gen Electric | Resintered hard metal composition |
| US2179960A (en) * | 1931-11-28 | 1939-11-14 | Schwarzkopf Paul | Agglomerated material in particular for electrical purposes and shaped bodies made therefrom |
| US2246166A (en) * | 1939-02-02 | 1941-06-17 | Gen Electric | Sintered hard-metal alloy for implements and tools |
| BE515834A (OSRAM) * | 1951-11-29 |
-
0
- BE BE560502D patent/BE560502A/xx unknown
- NL NL101006D patent/NL101006C/xx active
-
1956
- 1956-09-05 US US608130A patent/US2929133A/en not_active Expired - Lifetime
-
1957
- 1957-08-30 GB GB27384/57A patent/GB816997A/en not_active Expired
- 1957-08-30 DE DEN14060A patent/DE1040701B/de active Pending
- 1957-09-03 FR FR1201432D patent/FR1201432A/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT187993B (de) * | 1953-11-18 | 1956-12-10 | Philips Nv | Kathodenkörper für eine elektrische Entladungsröhre |
Also Published As
| Publication number | Publication date |
|---|---|
| GB816997A (en) | 1959-07-22 |
| US2929133A (en) | 1960-03-22 |
| NL101006C (OSRAM) | |
| FR1201432A (fr) | 1959-12-30 |
| BE560502A (OSRAM) |
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