CH334219A - Procédé pour la nitruration des aciers et appareillage pour la mise en oeuvre de ce procédé - Google Patents
Procédé pour la nitruration des aciers et appareillage pour la mise en oeuvre de ce procédéInfo
- Publication number
- CH334219A CH334219A CH334219DA CH334219A CH 334219 A CH334219 A CH 334219A CH 334219D A CH334219D A CH 334219DA CH 334219 A CH334219 A CH 334219A
- Authority
- CH
- Switzerland
- Prior art keywords
- nitrided
- ammonia
- catalyst
- gas
- contact
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000005121 nitriding Methods 0.000 title claims description 11
- 229910000831 Steel Inorganic materials 0.000 title claims description 9
- 239000010959 steel Substances 0.000 title claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 41
- 229910021529 ammonia Inorganic materials 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 20
- 238000010494 dissociation reaction Methods 0.000 claims description 11
- 230000005593 dissociations Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH318544T | 1953-07-22 | ||
| CH334219T | 1954-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH334219A true CH334219A (fr) | 1958-11-15 |
Family
ID=25736194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH334219D CH334219A (fr) | 1953-07-22 | 1954-04-21 | Procédé pour la nitruration des aciers et appareillage pour la mise en oeuvre de ce procédé |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE529986A (en)van) |
| CH (1) | CH334219A (en)van) |
| FR (1) | FR1110793A (en)van) |
| GB (1) | GB763515A (en)van) |
-
1954
- 1954-04-21 CH CH334219D patent/CH334219A/fr unknown
- 1954-06-29 BE BE529986D patent/BE529986A/xx unknown
- 1954-07-14 GB GB2061454A patent/GB763515A/en not_active Expired
- 1954-07-15 FR FR1110793D patent/FR1110793A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1110793A (fr) | 1956-02-16 |
| BE529986A (en)van) | 1957-08-02 |
| GB763515A (en) | 1956-12-12 |
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