MD3082G2 - Process for metal electrochemical protection from corrosion - Google Patents

Process for metal electrochemical protection from corrosion

Info

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
Application number
MDA20050224A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD3082F1 (en
Inventor
Вильгельм КОСОВ
Татьяна КОСОВА
Николае ТАРАН
Витали ПАВЛОВ
Александру МАТЮШЕНСКИЙ
Джулия ПАЛАМАРЧУК
Original Assignee
КОСОВ Вилгельм
Татьяна КОСОВА
Николае ТАРАН
Витали ПАВЛОВ
Александру МАТЮШЕНСКИЙ
Джулия ПАЛАМАРЧУК
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by КОСОВ Вилгельм, Татьяна КОСОВА, Николае ТАРАН, Витали ПАВЛОВ, Александру МАТЮШЕНСКИЙ, Джулия ПАЛАМАРЧУК filed Critical КОСОВ Вилгельм
Priority to MDA20050224A priority Critical patent/MD3082G2/en
Publication of MD3082F1 publication Critical patent/MD3082F1/en
Publication of MD3082G2 publication Critical patent/MD3082G2/en

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  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The invention relates to a process for metal electrochemical protection from corrosion and may be used for pipe and boiler protection.Summary of the invention consists in that the process provides for the anodic activation of the metal surface in acid medium at the potential corresponding to the active zone of the metal with direct current pulse, then the density of the direct current pulse Da is decreased up to the values corresponding to the potential of the passive zone, it is included the reverse current pulse, adjustable for width and it is established the ratio of densities of the direct and reverse current pulses Da/Dk equal to (3,5…6,0)·103 A/m3, with subsequent treatment of the formed oxide film in alcoholic solution containing passivated agent at the action of the periodic current with reverse pulse, adjustable for width at the potential of the passive zone.As passivated agent is used tannin and/or salts of the electronegative non-corrosive metals, in the quantity of 0,8…1,8 g/l and 1,5…4,0 g/l, correspondingly.
MDA20050224A 2005-08-08 2005-08-08 Process for metal electrochemical protection from corrosion MD3082G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20050224A MD3082G2 (en) 2005-08-08 2005-08-08 Process for metal electrochemical protection from corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20050224A MD3082G2 (en) 2005-08-08 2005-08-08 Process for metal electrochemical protection from corrosion

Publications (2)

Publication Number Publication Date
MD3082F1 MD3082F1 (en) 2006-06-30
MD3082G2 true MD3082G2 (en) 2007-01-31

Family

ID=36643908

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20050224A MD3082G2 (en) 2005-08-08 2005-08-08 Process for metal electrochemical protection from corrosion

Country Status (1)

Country Link
MD (1) MD3082G2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD192Z (en) * 2009-06-04 2010-11-30 Институт Прикладной Физики Академии Наук Молдовы Process for thermochemical treatment of steel articles
MD504Z (en) * 2011-10-19 2012-11-30 Институт Прикладной Физики Академии Наук Молдовы Process for manufacture of slightly soluble anode for cathodic protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2596571C2 (en) * 2014-09-30 2016-09-10 Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" Method for cathode protection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837900B1 (en) * 1969-11-14 1973-11-14
SU527928A1 (en) * 1974-07-15 1979-11-05 Предприятие П/Я А-7629 Method of metals protection from corrosion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837900B1 (en) * 1969-11-14 1973-11-14
SU527928A1 (en) * 1974-07-15 1979-11-05 Предприятие П/Я А-7629 Method of metals protection from corrosion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD192Z (en) * 2009-06-04 2010-11-30 Институт Прикладной Физики Академии Наук Молдовы Process for thermochemical treatment of steel articles
MD504Z (en) * 2011-10-19 2012-11-30 Институт Прикладной Физики Академии Наук Молдовы Process for manufacture of slightly soluble anode for cathodic protection

Also Published As

Publication number Publication date
MD3082F1 (en) 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