RO102362B1 - Procedeu de obtinere a contactelor electrice sinterizate din wolfram-argint - Google Patents
Procedeu de obtinere a contactelor electrice sinterizate din wolfram-argintInfo
- Publication number
- RO102362B1 RO102362B1 RO136044A RO13604488A RO102362B1 RO 102362 B1 RO102362 B1 RO 102362B1 RO 136044 A RO136044 A RO 136044A RO 13604488 A RO13604488 A RO 13604488A RO 102362 B1 RO102362 B1 RO 102362B1
- Authority
- RO
- Romania
- Prior art keywords
- sintered
- contacts
- powder
- silver
- wolfram
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 229910052709 silver Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000004332 silver Substances 0.000 title 1
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000004663 powder metallurgy Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000000754 repressing effect Effects 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Landscapes
- Contacts (AREA)
- Powder Metallurgy (AREA)
Abstract
Inventia de fata prezinta un procedeu de obtinere a contactelor sinterizate din W-Ag cu 35 ... 60% Ag utilizate drept contacte principale si de rupere în întrerupatoare automate de joasa tensiune si curenti pâna la 600 A. Pentru obtinerea contactelor sunt utilizate tehnici specifice metalurgiei pulberilor care consta în amestecarea pulberii de W cu pulbere de nichel sau cobalt si cu pulbere de argint, dozate conform compozitiei amestecurilor, presarea de comprimate, sinterizarea lor în atmosfera reducatoare sub punctul de topire al Ag, represarea comprimatelor sinterizate si apoi resinterizarea lor în atmosfera reducatoare sub punctul de topire al Ag. Contactele obtinute prin acest procedeu prezinta caracteristici functionale bune ceea cepermite utilizarea la întrerupatoare automate de joasa tensiune si curenti pâna la 600 A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO1988136044A RO102362A2 (ro) | 1988-11-24 | 1988-11-24 | Procedeu de obtinere a contactelor electrice sinterizate din wolfram-argint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO1988136044A RO102362A2 (ro) | 1988-11-24 | 1988-11-24 | Procedeu de obtinere a contactelor electrice sinterizate din wolfram-argint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO102362B1 true RO102362B1 (ro) | 1991-10-30 |
| RO102362A2 RO102362A2 (ro) | 1991-11-25 |
Family
ID=20122895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO1988136044A RO102362A2 (ro) | 1988-11-24 | 1988-11-24 | Procedeu de obtinere a contactelor electrice sinterizate din wolfram-argint |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO102362A2 (ro) |
-
1988
- 1988-11-24 RO RO1988136044A patent/RO102362A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO102362A2 (ro) | 1991-11-25 |
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