RO87124B1 - Process for producing precision resistors - Google Patents
Process for producing precision resistorsInfo
- Publication number
- RO87124B1 RO87124B1 RO111319A RO11131983A RO87124B1 RO 87124 B1 RO87124 B1 RO 87124B1 RO 111319 A RO111319 A RO 111319A RO 11131983 A RO11131983 A RO 11131983A RO 87124 B1 RO87124 B1 RO 87124B1
- Authority
- RO
- Romania
- Prior art keywords
- film
- temperature
- salt
- precision resistors
- producing precision
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000919 ceramic Substances 0.000 abstract 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 abstract 1
- 206010070834 Sensitisation Diseases 0.000 abstract 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 abstract 1
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 abstract 1
- 150000001868 cobalt Chemical class 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 150000002505 iron Chemical class 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000001465 metallisation Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 1
- 150000002815 nickel Chemical class 0.000 abstract 1
- 230000008313 sensitization Effects 0.000 abstract 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
Landscapes
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
Unventia se refera la un procedeu pentru obtinerea unor rezistoare electrice de precizie prin depunerea unei pelicule metalice pe tronson ceramic cilindric si prelucrari uletrioare ale acestei pelicule. Procedeul, conform inventiei consta în degresarea sensibilizarea si actionarea tronsoanelor ceramice dupa care sunt introduse în solutia de metalizare ce contine 5.....50 g/1 dintr-o sare de nichel (Ni la puterea 2+)0.....50h/l dintr-o sare de cobalt (Co la puterea 2+), 1.....25 g/l dintr-o sare de fier (Fe la piterea2+), 10....50 g/l acetat de sodiu 10....50g/l hipofosfit de sodiu cu pH de 2....5 la o temperatura de 80.....98 degree C dupa care se realizeaza stabilizarea peliculei rezistive la o temperatura de 250....300 degree C si presiune de 10 la puterea -2 torri si prin aplicarea pe rezistor dupa operatia de ajustare valorica a unei suprasarcini egala cu de trei ori tensiunea nominala timp de 0,5....5 s.The invention relates to a process for obtaining precision electrical resistors by depositing a metal film on the cylindrical ceramic section and machining of this film. The process according to the invention consists in degreasing the sensitization and the action of the ceramic sections, after which they are introduced into the metallization solution containing 5 ... 50 g / l of a nickel salt (Ni at 2+ strength) 0 .... .50h / l of a cobalt salt (Co at 2+), 1 ... 25g / l of an iron salt (Fe at the pit2 +), 10-50 g / l of acetate sodium 10 ... 50 g / l sodium hypophosphite having a pH of 2 ... 5 at a temperature of 80 ..... 98 ° C, after which stabilization of the resistive film at a temperature of 250 ... .300 degree C and a pressure of 10 to -2 torr power and by application to the resistor after the value adjustment of an overload equal to three times the rated voltage for 0.5 .... 5 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO111319A RO87124B1 (en) | 1983-06-17 | 1983-06-17 | Process for producing precision resistors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO111319A RO87124B1 (en) | 1983-06-17 | 1983-06-17 | Process for producing precision resistors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO87124A2 RO87124A2 (en) | 1985-06-29 |
| RO87124B1 true RO87124B1 (en) | 1985-06-30 |
Family
ID=20113242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO111319A RO87124B1 (en) | 1983-06-17 | 1983-06-17 | Process for producing precision resistors |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO87124B1 (en) |
-
1983
- 1983-06-17 RO RO111319A patent/RO87124B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO87124A2 (en) | 1985-06-29 |
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