MD4720B1 - Procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent - Google Patents
Procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent Download PDFInfo
- Publication number
- MD4720B1 MD4720B1 MDA20190001A MD20190001A MD4720B1 MD 4720 B1 MD4720 B1 MD 4720B1 MD A20190001 A MDA20190001 A MD A20190001A MD 20190001 A MD20190001 A MD 20190001A MD 4720 B1 MD4720 B1 MD 4720B1
- Authority
- MD
- Moldova
- Prior art keywords
- inductive
- trivalent chromium
- capacitive
- electrolyte
- limits
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 title abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052804 chromium Inorganic materials 0.000 title abstract 3
- 239000011651 chromium Substances 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000000151 deposition Methods 0.000 title 1
- 230000008021 deposition Effects 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 abstract 2
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 abstract 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 abstract 1
- MYHXWQZHYLEHIU-UHFFFAOYSA-N oxalic acid;sulfuric acid Chemical compound OS(O)(=O)=O.OC(=O)C(O)=O MYHXWQZHYLEHIU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Abstract
Invenţia se referă la galvanotehnică, şi anume la un procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent.Procedeul, conform invenţiei, include depunerea acoperirii de crom dintr-un electrolit oxalat-sulfat, care conţine, g/l: Cr2(SO4)3·6H2O - 150...200, NiSO4·7H2O - 1...10, Na2С4H4О6·2H2O - 1...3, Na2C2O4 - 25...30, Na2SO4 - cel mult 80, la un pH de 0,8...1,0, o temperatură a electrolitului de 30...50°C şi o densitate a curentului catodic de 3,0...5,0 kA/m2, cu utilizarea unei surse de curent trifazat şi a unui dispozitiv inductiv-capacitiv, conectat consecutiv în circuitul de alimentare a băii galvanice, totodată dispozitivul este format din două blocuri - capacitiv şi inductiv, conectate paralel între ele, blocul inductiv având inductanţa în limitele 0,1…10,0 H, iar blocul capacitiv având capacitatea sumară în limitele 0,001…0,11 F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20190001A MD4720C1 (ro) | 2019-01-02 | 2019-01-02 | Procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20190001A MD4720C1 (ro) | 2019-01-02 | 2019-01-02 | Procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD4720B1 true MD4720B1 (ro) | 2020-10-31 |
| MD4720C1 MD4720C1 (ro) | 2021-05-31 |
Family
ID=73196638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20190001A MD4720C1 (ro) | 2019-01-02 | 2019-01-02 | Procedeu de depunere a acoperirilor din electrolit pe bază de crom trivalent |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD4720C1 (ro) |
-
2019
- 2019-01-02 MD MDA20190001A patent/MD4720C1/ro not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MD4720C1 (ro) | 2021-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| TC4A | Change of name of proprietor (patent for invention) |
Owner name: INSTITUTIA PUBLICA UNIVERSITATEA DE STAT DIN MOLDOVA, MD STR. A. MATEEVICI NR. 60, MD-2009, CHISINAU, REPUBLICA MOLDOVA Free format text: PREVIOUS NAME OF PROPRIETOR: INSTITUTUL DE FIZICA APLICATA, MD STR. ACADEMIEI NR. 5, MD-2028, CHISINAU, REPUBLICA MOLDOVA |
|
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) |