MD3708G2 - Procedeu de mărire a rezistenţei oţelului la coroziune - Google Patents

Procedeu de mărire a rezistenţei oţelului la coroziune

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Publication number
MD3708G2
MD3708G2 MDA20070148A MD20070148A MD3708G2 MD 3708 G2 MD3708 G2 MD 3708G2 MD A20070148 A MDA20070148 A MD A20070148A MD 20070148 A MD20070148 A MD 20070148A MD 3708 G2 MD3708 G2 MD 3708G2
Authority
MD
Moldova
Prior art keywords
steel
enhancing
machining
corrosion resistance
nh4cl
Prior art date
Application number
MDA20070148A
Other languages
English (en)
Russian (ru)
Other versions
MD3708F1 (ro
Inventor
Владимир ПАРШУТИН
Валентин МИХАЙЛОВ
Эмиль ПАСИНКОВСКИ
Василе АГАФИЙ
Original Assignee
Институт Прикладной Физики Академии Наук Молдовы
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 Институт Прикладной Физики Академии Наук Молдовы filed Critical Институт Прикладной Физики Академии Наук Молдовы
Priority to MDA20070148A priority Critical patent/MD3708G2/ro
Publication of MD3708F1 publication Critical patent/MD3708F1/ro
Publication of MD3708G2 publication Critical patent/MD3708G2/ro

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  • Heat Treatment Of Articles (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Invenţia se referă la tratamentul termochimic al pieselor din oţel, poate fi folosită în industria constructoare de maşini şi în construcţia aparatelor pentru mărirea rezistenţei la coroziune a pieselor maşinilor, sculelor şi utilajului tehnologic.Procedeul de mărire a rezistenţei oţelului la coroziune constă în aceea că piesa din oţel mai întâi se supune alierii cu scântei electrice cu un metal rezistent la coroziune, cu timpul specific de aliere de 1 min/cm2, la un regim cu energia descărcării electrice în diapazonul 0,3…4,0 J. Apoi se efectuează tratarea termochimică, care constă în încălzirea anodică a piesei timp de 30 s într-un electrolit, ce conţine compuşi azotici NH4Cl 100 g/L şi NH4OH 50 g/L sau NH4Cl 110 g/L şi NaNO3 110 g/L, până la temperatura de 750°C, la tensiunea dintre electrozi de 150…220 V, cu intensitatea curentului electric de 1…15 A/cm2, şi răcirea ulterioară a piesei la aer.
MDA20070148A 2007-05-23 2007-05-23 Procedeu de mărire a rezistenţei oţelului la coroziune MD3708G2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20070148A MD3708G2 (ro) 2007-05-23 2007-05-23 Procedeu de mărire a rezistenţei oţelului la coroziune

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20070148A MD3708G2 (ro) 2007-05-23 2007-05-23 Procedeu de mărire a rezistenţei oţelului la coroziune

Publications (2)

Publication Number Publication Date
MD3708F1 MD3708F1 (ro) 2008-09-30
MD3708G2 true MD3708G2 (ro) 2009-04-30

Family

ID=39812063

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20070148A MD3708G2 (ro) 2007-05-23 2007-05-23 Procedeu de mărire a rezistenţei oţelului la coroziune

Country Status (1)

Country Link
MD (1) MD3708G2 (ro)

Cited By (2)

* Cited by examiner, † Cited by third party
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
MD307Z (ro) * 2010-04-27 2011-07-31 Институт Прикладной Физики Академии Наук Молдовы Inhibitor de coroziune a oţelului în apă

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD561Z (ro) * 2012-02-08 2013-06-30 Институт Прикладной Физики Академии Наук Молдовы Procedeu de tratament anticoroziv al oţelului
MD614Z (ro) * 2012-07-03 2013-10-31 Институт Прикладной Физики Академии Наук Молдовы Procedeu de prelucrare termochimică a pieselor din oţel
MD685Z (ro) * 2013-02-13 2014-05-31 Институт Прикладной Физики Академии Наук Молдовы Procedeu de obţinere a acoperirii multistrat prin metoda alierii cu scântei electrice

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2959B1 (ro) * 2004-06-29 2006-01-31 Institutul De Fizica Aplicata Al Academiei De Stiinte A Republicii Moldova Procedeu de prelucrare a pieselor din otel pentru obtinerea stratului superficial anticorosiv

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2959B1 (ro) * 2004-06-29 2006-01-31 Institutul De Fizica Aplicata Al Academiei De Stiinte A Republicii Moldova Procedeu de prelucrare a pieselor din otel pentru obtinerea stratului superficial anticorosiv

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Гитлевич А.Е., Михайлов В.В., Парканский Н.Я., Ревуцкий В.М. Электроискровое легирование металлических поверхностей. Кишинев, 1985 *
Паршутин В.В., Ревенко В.Г., Пасиновский Е.А., Шкурпело А.И., Житару Р.П. Влияние способа ввода азота на электрохимическое, коррозионное поведение и физико-механические свойства модифицированных поверхностей сталей. Электронная обработка материалов, 2004, № 4. c. 14-33 *
Чернова Г.П., Богдашкина Н.Л., Паршутин В.В. и др. Электрохимическое и коррозионное поведение стали 40Х, азотированной в «электролитной плазме». Защита металлов, 1984, № 3. c. 406-411 *

Cited By (2)

* Cited by examiner, † Cited by third party
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
MD307Z (ro) * 2010-04-27 2011-07-31 Институт Прикладной Физики Академии Наук Молдовы Inhibitor de coroziune a oţelului în apă

Also Published As

Publication number Publication date
MD3708F1 (ro) 2008-09-30

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