RO82632B1 - Procedeu de obtinere a pulberilor magnetice de culoare neagra - Google Patents
Procedeu de obtinere a pulberilor magnetice de culoare neagraInfo
- Publication number
- RO82632B1 RO82632B1 RO105213A RO10521381A RO82632B1 RO 82632 B1 RO82632 B1 RO 82632B1 RO 105213 A RO105213 A RO 105213A RO 10521381 A RO10521381 A RO 10521381A RO 82632 B1 RO82632 B1 RO 82632B1
- Authority
- RO
- Romania
- Prior art keywords
- black magnetic
- magnetic powders
- obtaining black
- suspension
- obtaining
- Prior art date
Links
- 239000006247 magnetic powder Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 1
- 230000005587 bubbling Effects 0.000 abstract 1
- 230000001066 destructive effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Landscapes
- Compounds Of Iron (AREA)
Abstract
Procedeul de obtinere a pulberilor magnetice de culoare neagra, folosite ca revelatori în controlul de fectoscopic nedistructiv, prin oxidare cu aer a sarurilor de Fe la 2+ în solutie amoniacala la pH=9...10 urmata de o eventuala încalzire la fierbere a suspensiei obtinute limpede 1...2h, în scopul simplificarii fluxului de obtinere a unor pulberi calitativ superioare, efectueaza barbotarea prin suspensia obtinuta a unui curent de aer cu un debit de 5 l/min timp de 1...3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81105213A RO82632A2 (ro) | 1981-09-01 | 1981-09-01 | Procedeu de obtinere a pulberilor magnetice de culoare neagra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81105213A RO82632A2 (ro) | 1981-09-01 | 1981-09-01 | Procedeu de obtinere a pulberilor magnetice de culoare neagra |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO82632B1 true RO82632B1 (ro) | 1983-09-30 |
| RO82632A2 RO82632A2 (ro) | 1983-10-15 |
Family
ID=20110399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81105213A RO82632A2 (ro) | 1981-09-01 | 1981-09-01 | Procedeu de obtinere a pulberilor magnetice de culoare neagra |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO82632A2 (ro) |
-
1981
- 1981-09-01 RO RO81105213A patent/RO82632A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO82632A2 (ro) | 1983-10-15 |
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