GB374096A - Improvements in the nitrogenisation of iron, steel and alloys thereof - Google Patents
Improvements in the nitrogenisation of iron, steel and alloys thereofInfo
- Publication number
- GB374096A GB374096A GB6006/31A GB600631A GB374096A GB 374096 A GB374096 A GB 374096A GB 6006/31 A GB6006/31 A GB 6006/31A GB 600631 A GB600631 A GB 600631A GB 374096 A GB374096 A GB 374096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- nitrogenizing
- container
- alloys
- steel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In a process of nitrogenizing iron, steel, and alloys thereof, the nitrogenization is effected by a gaseous nitrogenizing agent to which has been added an organic compound containing nitrogen. Aliphatic aromatic and heterocyclic compounds may be used such as carbocyclic compounds containing one or more nitroradicals, e.g. nitrobenzene and mono-nitrotoluene, amino compounds, e.g. aniline phenylene-diamine and alpha-naphthylamine, and heterocyclic compounds containing nitrogen in the ring, e.g. pyridine and quinoline. The gaseous nitrogenizing agent may be passed through the organic nitrogen compound which is heated to a temperature just below its boiling point. In an example an alloy containing 95,5 per cent of iron, 1 of aluminium, 1,7 of chromium, 0,1 of molybdenum, 0,3 of carbon, 0,5 of manganese, 0,3 of silicon, and the remainder phosphorus sulphur &c. was placed in a closed container and ammonia which was bubbled through nitrobenzene was then passed through the container, the container being heated to 460 DEG C. for 4 hours.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374096XA | 1930-02-26 | 1930-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB374096A true GB374096A (en) | 1932-05-26 |
Family
ID=21894186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6006/31A Expired GB374096A (en) | 1930-02-26 | 1931-02-26 | Improvements in the nitrogenisation of iron, steel and alloys thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB374096A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1507109A1 (en) * | 2003-08-11 | 2005-02-16 | Eagle Industry Co., Ltd. | Capacity control valve |
| EP1544318A1 (en) * | 2002-07-09 | 2005-06-22 | Langen Li | Atmosphere heat treatment cocatalyst, method of its application, heat treatment method and heat treatment atmosphere of using the cocatalyst |
-
1931
- 1931-02-26 GB GB6006/31A patent/GB374096A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1544318A1 (en) * | 2002-07-09 | 2005-06-22 | Langen Li | Atmosphere heat treatment cocatalyst, method of its application, heat treatment method and heat treatment atmosphere of using the cocatalyst |
| EP1544318A4 (en) * | 2002-07-09 | 2008-12-31 | Langen Li | Atmosphere heat treatment cocatalyst, method of its application, heat treatment method and heat treatment atmosphere of using the cocatalyst |
| EP1507109A1 (en) * | 2003-08-11 | 2005-02-16 | Eagle Industry Co., Ltd. | Capacity control valve |
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