RO81744B1 - Material de electrozi pentru comutatoare-descarcatoare de inalta tensiune si curenti fosrte inalti si procedeu de obtinere a acestuia - Google Patents
Material de electrozi pentru comutatoare-descarcatoare de inalta tensiune si curenti fosrte inalti si procedeu de obtinere a acestuiaInfo
- Publication number
- RO81744B1 RO81744B1 RO106164A RO10616481A RO81744B1 RO 81744 B1 RO81744 B1 RO 81744B1 RO 106164 A RO106164 A RO 106164A RO 10616481 A RO10616481 A RO 10616481A RO 81744 B1 RO81744 B1 RO 81744B1
- Authority
- RO
- Romania
- Prior art keywords
- dischargers
- obtaining
- electrode material
- same
- current switches
- Prior art date
Links
- 239000007772 electrode material Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 5
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- 229910052759 nickel Inorganic materials 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
- Conductive Materials (AREA)
Abstract
Inventia se refera la un material de electrozi pentru comutatoare-descarcatoare de înalta tensiune si curenti foarte înalti si la un procedeu de obtinere a acestuia. materialul, conform inventiei, contine minimum 85% W, plu nichel si cupru în raportul %Ni/%Cu=5/1...1,5/1. El se obtine prin sinterizarea în prezenta unei faze lichide, la 1300...1600 degree C, timp de 10...20 min si un palier intermediar de 60...180 min, la 900 degree C, în atmosfera statica de hidrogen, a unor comprimate obtinute prin presarea cu 0,5...10 tf/cm2 a unui amestec omogenizat de pulberi de wolfram, nichel si cupru cu granulatie initiala sub 45 miu m si granulatie "falsa" 125...400 miu m. Sinterizarea comprimatelor este însotita de o contractie foarte puternica, ce determina în conditii optime, obtinerea unei structuri foarte compacte (peste 99% din densitatea teoretica) si rezistente, fara nici o comprimare ulterioara.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81106164A RO81744A2 (ro) | 1981-12-29 | 1981-12-29 | Material de electrozi pentru comutatoare-descarcatoare de inalta tensiune si curenti fosrte inalti si procedeu de obtinere a acestuia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81106164A RO81744A2 (ro) | 1981-12-29 | 1981-12-29 | Material de electrozi pentru comutatoare-descarcatoare de inalta tensiune si curenti fosrte inalti si procedeu de obtinere a acestuia |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81744B1 true RO81744B1 (ro) | 1983-05-30 |
| RO81744A2 RO81744A2 (ro) | 1983-06-01 |
Family
ID=20110854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81106164A RO81744A2 (ro) | 1981-12-29 | 1981-12-29 | Material de electrozi pentru comutatoare-descarcatoare de inalta tensiune si curenti fosrte inalti si procedeu de obtinere a acestuia |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81744A2 (ro) |
-
1981
- 1981-12-29 RO RO81106164A patent/RO81744A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81744A2 (ro) | 1983-06-01 |
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