GB1308959A - Case hardening - Google Patents
Case hardeningInfo
- Publication number
- GB1308959A GB1308959A GB1463870A GB1463870A GB1308959A GB 1308959 A GB1308959 A GB 1308959A GB 1463870 A GB1463870 A GB 1463870A GB 1463870 A GB1463870 A GB 1463870A GB 1308959 A GB1308959 A GB 1308959A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inhibitor
- atmosphere
- article
- carbonitriding
- march
- 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
- 239000003112 inhibitor Substances 0.000 abstract 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005256 carbonitriding Methods 0.000 abstract 2
- 238000005255 carburizing Methods 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 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
- C23C8/28—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 more than one element being applied in one step
- C23C8/30—Carbo-nitriding
- C23C8/32—Carbo-nitriding of ferrous surfaces
-
- 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
- C23C8/20—Carburising
- C23C8/22—Carburising 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)
Abstract
1308959 Carburizing or carbonitriding steels UNION CARBIDE CORP 26 March 1970 [26 March 1969] 14638/70 Heading C7U A carbon steel article having a carbon content of 0À1-0À4% is case hardened by heating at a temperature of 1450-1750F in a carburizing atmosphere comprising a gaseous hydrocarbon, the atmosphere being contacted with a sooting inhibitor heated to at least 200F prior to or during exposure of the article to the atmosphere, the inhibitor comprising one or more of the elements Ba, Ca and Sr in the form of metal, alloy, oxide, hydronide or halide. The inhibitor may be dusted in finely divided form over the surface of the article or the atmosphere may be passed over a heated bed of the inhibitor prior to coming into contact with the article or the inhibitor may be incorporated in the walls of the furnace. The atmosphere may include 2-12% by volume of gaseous hydrocarbon such as methane, ethane, propane or natural gas, and may include a minor amount of ammonia for carbonitriding
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81080569A | 1969-03-26 | 1969-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1308959A true GB1308959A (en) | 1973-03-07 |
Family
ID=25204746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1463870A Expired GB1308959A (en) | 1969-03-26 | 1970-03-26 | Case hardening |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3663315A (en) |
| JP (1) | JPS4924327B1 (en) |
| BR (1) | BR7017741D0 (en) |
| FR (1) | FR2040026A5 (en) |
| GB (1) | GB1308959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022726A (en) * | 1973-07-02 | 1975-03-11 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2163476A1 (en) * | 1971-12-21 | 1973-07-12 | Jenaer Glaswerk Schott & Gen | PROCESS FOR INCREASING THE MECHANICAL STRENGTH OF GLASS-METAL FUSIONS BY CARBURIZING IRON AND IRON ALLOYS |
| GB1471880A (en) * | 1973-10-26 | 1977-04-27 | Air Prod & Chem | Furnace atmosphere for the heat treatment of ferrous metal |
| FR2288785A2 (en) * | 1974-10-21 | 1976-05-21 | Air Liquide | Gas mixtures for heat treating steel - esp. for controlled carburisation |
| JPS5178714A (en) * | 1974-12-28 | 1976-07-08 | Kobe Steel Ltd | Kofunmatsutaino kanetsuhoho |
| US4049472A (en) * | 1975-12-22 | 1977-09-20 | Air Products And Chemicals, Inc. | Atmosphere compositions and methods of using same for surface treating ferrous metals |
| US4415379A (en) * | 1981-09-15 | 1983-11-15 | The Boc Group, Inc. | Heat treatment processes |
| US4547228A (en) * | 1983-05-26 | 1985-10-15 | Procedyne Corp. | Surface treatment of metals |
| US4776901A (en) * | 1987-03-30 | 1988-10-11 | Teledyne Industries, Inc. | Nitrocarburizing and nitriding process for hardening ferrous surfaces |
| DE10003526A1 (en) * | 2000-01-27 | 2001-08-09 | Messer Griesheim Gmbh Frankfur | Process for the carbonitriding of high-carbon and high-alloy steels |
| RU2235146C2 (en) * | 2002-02-26 | 2004-08-27 | ОАО "Тульский проектно-конструкторский технологический институт машиностроения" | Method for making articles of metals and alloys having laminate structure caused by contrast concentrations of alloying elements such as carbon and nitrogen embedded into metal by chemical and heat treatment |
| GB2492054A (en) * | 2011-06-13 | 2012-12-26 | Charles Malcolm Ward-Close | Adding or removing solute from a metal workpiece and then further processing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1848958A (en) * | 1932-03-08 | Generated in the habdening pttbnace | ||
| US246861A (en) * | 1881-09-13 | Paul atjbe | ||
| US1958575A (en) * | 1930-06-02 | 1934-05-15 | Nitralloy Corp | Process for hardening iron, steel, and cast iron alloys by nitriding |
| US1932032A (en) * | 1932-01-28 | 1933-10-24 | Surface Combustion Corp | Continuous carburizing process |
| US2089545A (en) * | 1935-07-12 | 1937-08-10 | John A Dow | Method of producing gas for the carburization of steel |
| US2240146A (en) * | 1938-10-06 | 1941-04-29 | Harold J Ness | Carburizing ferrous metals |
| GB573085A (en) * | 1943-10-20 | 1945-11-06 | Birmingham Electr Furnaces Ltd | Improvements in the production of gaseous atmospheres for the cementation of iron and steel |
-
1969
- 1969-03-26 US US810805A patent/US3663315A/en not_active Expired - Lifetime
-
1970
- 1970-03-25 BR BR217741/70A patent/BR7017741D0/en unknown
- 1970-03-26 GB GB1463870A patent/GB1308959A/en not_active Expired
- 1970-03-26 JP JP45024914A patent/JPS4924327B1/ja active Pending
- 1970-03-26 FR FR7010916A patent/FR2040026A5/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022726A (en) * | 1973-07-02 | 1975-03-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2040026A5 (en) | 1971-01-15 |
| US3663315A (en) | 1972-05-16 |
| BR7017741D0 (en) | 1973-04-26 |
| JPS4924327B1 (en) | 1974-06-21 |
| DE2013827A1 (en) | 1970-10-08 |
| DE2013827B2 (en) | 1975-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |