MD2959C2 - Process for steel article working for anticorrosive superficial layer obtaining - Google Patents
Process for steel article working for anticorrosive superficial layer obtaining Download PDFInfo
- Publication number
- MD2959C2 MD2959C2 MDA20040161A MD20040161A MD2959C2 MD 2959 C2 MD2959 C2 MD 2959C2 MD A20040161 A MDA20040161 A MD A20040161A MD 20040161 A MD20040161 A MD 20040161A MD 2959 C2 MD2959 C2 MD 2959C2
- Authority
- MD
- Moldova
- Prior art keywords
- article
- anticorrosive
- superficial layer
- layer obtaining
- steel article
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000011089 mechanical engineering Methods 0.000 abstract 1
- 235000010288 sodium nitrite Nutrition 0.000 abstract 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to the thermochemical treatment of steel articles and may be used in the mechanical engineering and instrument engineering for increasing the corrosive resistance of the machine parts, tools and machine-tool attachments.The process for steel article working for anticorrosive superficial layer obtaining includes the thermochemical treatment consisting in the anodic heating of the article into an electrolyte, containing nitric compounds, and cooling thereof up to the ambient temperature. The anodic heating of the article into an electrolyte is carried out up to the temperature of 720…750°C, maintaining it at said temperature during 3…7 min, and cooling of the article is carried out by submergence thereof in the aqueous solution of sodium nitrite with the concentration of 10…30 g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20040161A MD2959C2 (en) | 2004-06-29 | 2004-06-29 | Process for steel article working for anticorrosive superficial layer obtaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20040161A MD2959C2 (en) | 2004-06-29 | 2004-06-29 | Process for steel article working for anticorrosive superficial layer obtaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD2959B1 MD2959B1 (en) | 2006-01-31 |
| MD2959C2 true MD2959C2 (en) | 2006-08-31 |
Family
ID=35767497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20040161A MD2959C2 (en) | 2004-06-29 | 2004-06-29 | Process for steel article working for anticorrosive superficial layer obtaining |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD2959C2 (en) |
Cited By (3)
| 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 |
| MD561Z (en) * | 2012-02-08 | 2013-06-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for anticorrosion machining of steel |
| MD614Z (en) * | 2012-07-03 | 2013-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for chemicothermal treatment of steel products |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD3708G2 (en) * | 2007-05-23 | 2009-04-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for enhancing the corrosion resistance of steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU969761A1 (en) * | 1980-02-20 | 1982-10-30 | Институт Прикладной Физики Ан Мсср | Method and electrolyte for decarburizing steel |
-
2004
- 2004-06-29 MD MDA20040161A patent/MD2959C2/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU969761A1 (en) * | 1980-02-20 | 1982-10-30 | Институт Прикладной Физики Ан Мсср | Method and electrolyte for decarburizing steel |
Non-Patent Citations (3)
| Title |
|---|
| В.Г. Ревенко, Г.П. Чернова, В.В. Паршутин, Н.Л. Богдашкина, Н.Д. Томашов, П.Н. Белкин, Е.А. Пасинковский. Влияние параметров процесса азотирования в электролите на защитные свойства конверсионных покрытий. Защита металлов, 1988, № 2, c. 204 – 210 * |
| Ревенко, Г.П. Чернова, В.В. Паршутин, Богдашкина Н.Л., Томашов Н.Д., Белкин П.Н., Пасинковский Е.А. Влияние параметров процесса азотирования в * |
| электролите на защитные свойства конверсионных покрытий. Защита металлов, 1988, № 2. С. 204 - 210. * |
Cited By (3)
| 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 |
| MD561Z (en) * | 2012-02-08 | 2013-06-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for anticorrosion machining of steel |
| MD614Z (en) * | 2012-07-03 | 2013-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for chemicothermal treatment of steel products |
Also Published As
| Publication number | Publication date |
|---|---|
| MD2959B1 (en) | 2006-01-31 |
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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 |