MD3082G2 - Procedeu de protecţie electrochimică a metalelor contra coroziunii - Google Patents
Procedeu de protecţie electrochimică a metalelor contra coroziuniiInfo
- Publication number
- MD3082G2 MD3082G2 MDA20050224A MD20050224A MD3082G2 MD 3082 G2 MD3082 G2 MD 3082G2 MD A20050224 A MDA20050224 A MD A20050224A MD 20050224 A MD20050224 A MD 20050224A MD 3082 G2 MD3082 G2 MD 3082G2
- Authority
- MD
- Moldova
- Prior art keywords
- potential
- metal
- corrosion
- current pulse
- reverse
- Prior art date
Links
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Invenţia se referă la un procedeu de protecţie electrochimică a metalelor contra coroziunii şi poate fi utilizată pentru protecţia conductelor şi cazanelor.Esenţa invenţiei constă în aceea că procedeul prevede activarea anodică a suprafeţei metalului în mediu acid la potenţialul ce corespunde zonei active a metalului cu impuls direct al curentului, apoi densitatea impulsului curentului direct Da se micşorează până la valorile, ce corespund potenţialului zonei pasive, se include impulsul de curent invers, reglabil după durată şi se stabileşte raportul densităţilor impulsurilor de curent direct şi invers Da/Dk egal cu (3,5...6,0)·103 A/m2, cu tratarea ulterioară a peliculei de oxid formate în soluţie de alcool ce conţine agent de pasivizare la acţiunea curentului periodic cu impuls invers reglabil după durată la potenţialul zonei pasive.În calitate de agent de pasivizare se utilizează tanin şi/sau săruri ale metalelor electronegative rezistente la coroziune, în cantitate de 0,8...1,8 g/l şi, corespunzător, de 1,5...4,0 g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20050224A MD3082G2 (ro) | 2005-08-08 | 2005-08-08 | Procedeu de protecţie electrochimică a metalelor contra coroziunii |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20050224A MD3082G2 (ro) | 2005-08-08 | 2005-08-08 | Procedeu de protecţie electrochimică a metalelor contra coroziunii |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD3082F1 MD3082F1 (ro) | 2006-06-30 |
| MD3082G2 true MD3082G2 (ro) | 2007-01-31 |
Family
ID=36643908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20050224A MD3082G2 (ro) | 2005-08-08 | 2005-08-08 | Procedeu de protecţie electrochimică a metalelor contra coroziunii |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD3082G2 (ro) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD192Z (ro) * | 2009-06-04 | 2010-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Procedeu de prelucrare termochimică a pieselor din oţel |
| MD504Z (ro) * | 2011-10-19 | 2012-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Procedeu de fabricare a anodului puţin solubil pentru protecţie catodică |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2596571C2 (ru) * | 2014-09-30 | 2016-09-10 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" | Способ катодной защиты |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4837900B1 (ro) * | 1969-11-14 | 1973-11-14 | ||
| SU527928A1 (ru) * | 1974-07-15 | 1979-11-05 | Предприятие П/Я А-7629 | Способ защиты металлов от коррозии |
-
2005
- 2005-08-08 MD MDA20050224A patent/MD3082G2/ro not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4837900B1 (ro) * | 1969-11-14 | 1973-11-14 | ||
| SU527928A1 (ru) * | 1974-07-15 | 1979-11-05 | Предприятие П/Я А-7629 | Способ защиты металлов от коррозии |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD192Z (ro) * | 2009-06-04 | 2010-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Procedeu de prelucrare termochimică a pieselor din oţel |
| MD504Z (ro) * | 2011-10-19 | 2012-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Procedeu de fabricare a anodului puţin solubil pentru protecţie catodică |
Also Published As
| Publication number | Publication date |
|---|---|
| MD3082F1 (ro) | 2006-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |