MD192Z - Process for thermochemical treatment of steel articles - Google Patents
Process for thermochemical treatment of steel articles Download PDFInfo
- Publication number
- MD192Z MD192Z MDS20090103A MDS20090103A MD192Z MD 192 Z MD192 Z MD 192Z MD S20090103 A MDS20090103 A MD S20090103A MD S20090103 A MDS20090103 A MD S20090103A MD 192 Z MD192 Z MD 192Z
- Authority
- MD
- Moldova
- Prior art keywords
- thermochemical treatment
- steel articles
- steel
- hcl
- article
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910017912 NH2OH Inorganic materials 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Resistance Heating (AREA)
Abstract
The invention relates to the steel treatment processes, in particular a process for thermochemical treatment of steel articles.The process, according to the invention, includes the anode heating of the article up to a temperature of 400…950°C for 3…5 minutes, in an electrolyte containing, g/l: NH4Cl 40…60, NH2OH·HCl 0.05…0.10, N2H4·HCl 0.1…1.0, water - the rest, at a current voltage of 100…220 V and a density of 1.0…2.5 A/cm2, afterwards the article is quenched in an aqueous solution containing 50…100 g/l of sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20090103A MD192Z (en) | 2009-06-04 | 2009-06-04 | Process for thermochemical treatment of steel articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20090103A MD192Z (en) | 2009-06-04 | 2009-06-04 | Process for thermochemical treatment of steel articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD192Y MD192Y (en) | 2010-04-30 |
| MD192Z true MD192Z (en) | 2010-11-30 |
Family
ID=43569609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDS20090103A MD192Z (en) | 2009-06-04 | 2009-06-04 | Process for thermochemical treatment of steel articles |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD192Z (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD561Z (en) * | 2012-02-08 | 2013-06-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for anticorrosion machining of steel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD336Z (en) * | 2010-03-03 | 2011-09-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for thermochemical machining of metal articles |
| MD614Z (en) * | 2012-07-03 | 2013-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for chemicothermal treatment of steel products |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU502963A1 (en) * | 1974-06-24 | 1976-02-15 | Новолипецкий Металлургический Завод | The method of processing electrical steel |
| SU969761A1 (en) * | 1980-02-20 | 1982-10-30 | Институт Прикладной Физики Ан Мсср | Method and electrolyte for decarburizing steel |
| MD783G2 (en) * | 1996-12-09 | 1998-05-31 | Mihail Zaguralschi | Steel pickling solution |
| RU2242543C2 (en) * | 2003-02-11 | 2004-12-20 | Воронежский государственный технический университет | Method for electrochemical etching of steel band |
| MD2959C2 (en) * | 2004-06-29 | 2006-08-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for steel article working for anticorrosive superficial layer obtaining |
| MD3082G2 (en) * | 2005-08-08 | 2007-01-31 | КОСОВ Вилгельм | Process for metal electrochemical protection from corrosion |
| MD3077C2 (en) * | 2004-06-29 | 2007-01-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical treatment |
| MD3122C2 (en) * | 2005-04-13 | 2007-05-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical treatment |
| MD3288C2 (en) * | 2005-06-03 | 2007-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for dimensional electrochemical working of hard tungsten-cobalt alloys |
| MD3289C2 (en) * | 2005-07-05 | 2007-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical working |
| MD3316C2 (en) * | 2005-12-06 | 2007-12-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for electrochemical pickling of tungsten |
| MD3457G2 (en) * | 2007-03-19 | 2008-07-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for electrochemical activation of tungsten-free hard alloy surface for low-temperature brazing |
| MD3481G2 (en) * | 2006-06-19 | 2008-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for metal electrochemical working |
| MD3708G2 (en) * | 2007-05-23 | 2009-04-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for enhancing the corrosion resistance of steel |
| MD3917C2 (en) * | 2006-09-20 | 2009-12-31 | Dinano Ecotechnology Llc | Process for thermochemical processing of carboniferous raw material |
-
2009
- 2009-06-04 MD MDS20090103A patent/MD192Z/en not_active IP Right Cessation
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU502963A1 (en) * | 1974-06-24 | 1976-02-15 | Новолипецкий Металлургический Завод | The method of processing electrical steel |
| SU969761A1 (en) * | 1980-02-20 | 1982-10-30 | Институт Прикладной Физики Ан Мсср | Method and electrolyte for decarburizing steel |
| MD783G2 (en) * | 1996-12-09 | 1998-05-31 | Mihail Zaguralschi | Steel pickling solution |
| RU2242543C2 (en) * | 2003-02-11 | 2004-12-20 | Воронежский государственный технический университет | Method for electrochemical etching of steel band |
| MD3077C2 (en) * | 2004-06-29 | 2007-01-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical treatment |
| MD2959C2 (en) * | 2004-06-29 | 2006-08-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for steel article working for anticorrosive superficial layer obtaining |
| MD3122C2 (en) * | 2005-04-13 | 2007-05-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical treatment |
| MD3288C2 (en) * | 2005-06-03 | 2007-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for dimensional electrochemical working of hard tungsten-cobalt alloys |
| MD3289C2 (en) * | 2005-07-05 | 2007-11-30 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for steel dimensional electrochemical working |
| MD3082G2 (en) * | 2005-08-08 | 2007-01-31 | КОСОВ Вилгельм | Process for metal electrochemical protection from corrosion |
| MD3316C2 (en) * | 2005-12-06 | 2007-12-31 | Институт Прикладной Физики Академии Наук Молдовы | Electrolyte for electrochemical pickling of tungsten |
| MD3481G2 (en) * | 2006-06-19 | 2008-10-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for metal electrochemical working |
| MD3917C2 (en) * | 2006-09-20 | 2009-12-31 | Dinano Ecotechnology Llc | Process for thermochemical processing of carboniferous raw material |
| MD3457G2 (en) * | 2007-03-19 | 2008-07-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for electrochemical activation of tungsten-free hard alloy surface for low-temperature brazing |
| MD3708G2 (en) * | 2007-05-23 | 2009-04-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for enhancing the corrosion resistance of steel |
Non-Patent Citations (1)
| Title |
|---|
| Паршутин В.В. Коррозионное и электрохимическое поведение псевдосплавов на основе вольфрама и их компонентов. Электронная обработка материалов, 2008, № 6 с. 31. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD561Z (en) * | 2012-02-08 | 2013-06-30 | Институт Прикладной Физики Академии Наук Молдовы | Process for anticorrosion machining of steel |
Also Published As
| Publication number | Publication date |
|---|---|
| MD192Y (en) | 2010-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK4Y | Short term patent expired |