RO98735B1 - Process for obtaining sintered electric contacts of silver-black lead - Google Patents
Process for obtaining sintered electric contacts of silver-black leadInfo
- Publication number
- RO98735B1 RO98735B1 RO129981A RO12998187A RO98735B1 RO 98735 B1 RO98735 B1 RO 98735B1 RO 129981 A RO129981 A RO 129981A RO 12998187 A RO12998187 A RO 12998187A RO 98735 B1 RO98735 B1 RO 98735B1
- Authority
- RO
- Romania
- Prior art keywords
- contacts
- silver
- electric contacts
- graphite
- black lead
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000004663 powder metallurgy Methods 0.000 abstract 1
- 239000010970 precious metal Substances 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
- Contacts (AREA)
Abstract
Inventia de fata prezinta un procedeu de realizare a contactelor electrice sinterizate din argint-oxid de cupru-grafit utilizate la echiparea aparatajului electrotehnic de joasa tensiune. Pentru obtinerea contactelor electrice sunt utilizate tehnici specifice metalurgiei pulberilor, care constau în amestecarea mecanica a componentelor, dozate, conform compozitiei dorite, presarea în dublu strat a contactelor, sinterizarea în vid sau atmosfera protectoare si calibrare la forma si cotele finale. Contactele electrice din Ag-CuO-C prezinta, fata de contactele clasice din argint-grafit, avantajele unei economii însemnate de metal pretios, precum si caracteristici îmbunatatite de ardere.The present invention provides a process for making sintered copper-graphite silver-sintered contacts used to equip low-voltage electrotechnical apparatus. For the purpose of obtaining the electrical contacts are used techniques specific to powder metallurgy, which consist in the mechanical mixing of the components, dosed, according to the desired composition, double-pressing of the contacts, vacuum sintering or protective atmosphere and calibration to the shape and the final quotas. Ag-CuO-C electrical contacts show, compared to classical silver-graphite contacts, the benefits of a significant precious metal economy, as well as improved burning characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129981A RO98735B1 (en) | 1987-10-06 | 1987-10-06 | Process for obtaining sintered electric contacts of silver-black lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129981A RO98735B1 (en) | 1987-10-06 | 1987-10-06 | Process for obtaining sintered electric contacts of silver-black lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO98735B1 true RO98735B1 (en) | 1990-04-30 |
Family
ID=40906830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO129981A RO98735B1 (en) | 1987-10-06 | 1987-10-06 | Process for obtaining sintered electric contacts of silver-black lead |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO98735B1 (en) |
-
1987
- 1987-10-06 RO RO129981A patent/RO98735B1/en unknown
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