RO86771B1 - Procedeu de lustruire electrochimica a otelurilor inoxidabile si a acoperirilor de nichel - Google Patents
Procedeu de lustruire electrochimica a otelurilor inoxidabile si a acoperirilor de nichelInfo
- Publication number
- RO86771B1 RO86771B1 RO109469A RO10946982A RO86771B1 RO 86771 B1 RO86771 B1 RO 86771B1 RO 109469 A RO109469 A RO 109469A RO 10946982 A RO10946982 A RO 10946982A RO 86771 B1 RO86771 B1 RO 86771B1
- Authority
- RO
- Romania
- Prior art keywords
- nickel
- polishing
- anode
- stainless steels
- stainless steel
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract 14
- 229910052759 nickel Inorganic materials 0.000 title abstract 7
- 238000005498 polishing Methods 0.000 title abstract 5
- 229910001220 stainless steel Inorganic materials 0.000 title abstract 4
- 238000000576 coating method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000010935 stainless steel Substances 0.000 abstract 2
- 238000003287 bathing Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 239000011133 lead Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Landscapes
- Chemical Treatment Of Metals (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Prezenta inventie se refera la un procedeu de lustruire electrochimica a otelurilor inoxidabile si a nichelului, respectiv a acoperirilor de nichel mat si semilucios. Piesele care urmeaza sa fie lustruite se suspenda la anod, iar catodul poate fi din nichel, inox sau plumb. Pentru obtinerea unui litru de solutie de lustruire, se amesteca: 940 ml acid sulfuric de densitate 1,53 g/cm3, 9 g sulfat feros, 25 ml apa oxigenata de 30-38%, 35 ml glicerina. Conditiile de lucru pentru lustruirea inoxului sunt: temperatura 80 degree C, densitatea de curent de 20-40 A/dm2, timp de mentinere a pieselor în baie 2-5 minute. Conditiile de lucru pentru lustruirea nichelului sau acoperirilor cu nichel sunt: temperatura 20-30 degree C, densitatea de curent 20-40A/dm2, timp de mentinere a pieselor în baie-cîteva secunde pîna la cel mult un minut, depinzînd si de grosimea stratului de nichel depus. La suprafata de contact anod-electrolit se formeaza pelicula subtire vîscoasa, cu rezistenta electrica mare, prin care curentul va trece preferential, dizolvînd proeminentele. Suprafetele lustruite dupa aceasta metoda prezinta un luciu oglinda care nu dispare sub actiunea agentilor atmosferici.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109469A RO86771B1 (ro) | 1982-12-24 | 1982-12-24 | Procedeu de lustruire electrochimica a otelurilor inoxidabile si a acoperirilor de nichel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109469A RO86771B1 (ro) | 1982-12-24 | 1982-12-24 | Procedeu de lustruire electrochimica a otelurilor inoxidabile si a acoperirilor de nichel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86771A2 RO86771A2 (ro) | 1985-04-17 |
| RO86771B1 true RO86771B1 (ro) | 1985-05-01 |
Family
ID=20112425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109469A RO86771B1 (ro) | 1982-12-24 | 1982-12-24 | Procedeu de lustruire electrochimica a otelurilor inoxidabile si a acoperirilor de nichel |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86771B1 (ro) |
-
1982
- 1982-12-24 RO RO109469A patent/RO86771B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86771A2 (ro) | 1985-04-17 |
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