IT1030736B - Metodo per il trattamento a caldo di metalli ferrosi - Google Patents
Metodo per il trattamento a caldo di metalli ferrosiInfo
- Publication number
- IT1030736B IT1030736B IT28775/74A IT2877574A IT1030736B IT 1030736 B IT1030736 B IT 1030736B IT 28775/74 A IT28775/74 A IT 28775/74A IT 2877574 A IT2877574 A IT 2877574A IT 1030736 B IT1030736 B IT 1030736B
- Authority
- IT
- Italy
- Prior art keywords
- ferrous metals
- hot treatment
- hot
- treatment
- ferrous
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4996373A GB1471880A (en) | 1973-10-26 | 1973-10-26 | Furnace atmosphere for the heat treatment of ferrous metal |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1030736B true IT1030736B (it) | 1979-04-10 |
Family
ID=10454142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT28775/74A IT1030736B (it) | 1973-10-26 | 1974-10-25 | Metodo per il trattamento a caldo di metalli ferrosi |
Country Status (7)
Country | Link |
---|---|
US (1) | US4386972A (it) |
JP (1) | JPS5083211A (it) |
DE (1) | DE2450879A1 (it) |
FR (1) | FR2249179B1 (it) |
GB (1) | GB1471880A (it) |
IT (1) | IT1030736B (it) |
ZA (1) | ZA746775B (it) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
GB1575342A (en) * | 1977-04-27 | 1980-09-17 | Air Prod & Chem | Production of furnace atmospheres for the heat treatment of ferrous metals |
US4145232A (en) * | 1977-06-03 | 1979-03-20 | Union Carbide Corporation | Process for carburizing steel |
US4175986A (en) * | 1978-10-19 | 1979-11-27 | Trw Inc. | Inert carrier gas heat treating control process |
JPS55128577A (en) * | 1979-03-28 | 1980-10-04 | Taiyo Sanso Kk | Manufacture of carburizing-nitriding atmosphere gas |
JPS585259B2 (ja) * | 1980-04-22 | 1983-01-29 | 本田技研工業株式会社 | ガス浸炭方法及び装置 |
DE3038078A1 (de) * | 1980-10-08 | 1982-05-06 | Linde Ag, 6200 Wiesbaden | Verfahren und vorrichtung zum aufkohlen metallischer werkstuecke |
DE3230723A1 (de) * | 1982-08-18 | 1984-02-23 | Linde Ag, 6200 Wiesbaden | Verfahren zum herstellen einer gasatmosphaere fuer das gluehen metallischer werkstuecke |
US4512821A (en) * | 1982-12-20 | 1985-04-23 | Procedyne Corp. | Method for metal treatment using a fluidized bed |
US4540447A (en) * | 1983-06-09 | 1985-09-10 | Huck Manufacturing Company | Method of making a multigrip fastener and fastener made thereby |
DE3403987A1 (de) * | 1984-02-04 | 1985-10-10 | Nicolai, Stephan Peter, 4230 Wesel | Verfahren zur herstellung von halbsynthetischen schutz- und reaktionsgasen, insbesondere zur waermebehandlung von stahl- und metallwerkstoffen, bestehend aus einer mischung unterschiedlich waehlbarer mengen von stickstoff, wasserstoff, kohlenmonoxyd, kohlendioxyd sowie wasserdampf |
FR2586258B1 (fr) * | 1985-08-14 | 1987-10-30 | Air Liquide | Procede pour la cementation rapide et homogene d'une charge dans un four |
US4776901A (en) * | 1987-03-30 | 1988-10-11 | Teledyne Industries, Inc. | Nitrocarburizing and nitriding process for hardening ferrous surfaces |
DE3718240C1 (de) * | 1987-05-30 | 1988-01-14 | Ewald Schwing | Verfahren zur Waermebehandlung von metallischen Werkstuecken in einer gasdurchstroemten Wirbelschicht |
SE461533B (sv) * | 1987-09-28 | 1990-02-26 | Aga Ab | Saett att med en lans tillfoera en vid omgivningstemperaturen vaetskeformigt substans till en vaermebehandlingsugn |
FR2623209B1 (fr) * | 1987-11-17 | 1993-09-03 | Air Liquide | Procede de traitement thermique sous atmosphere gazeuse a base d'azote et d'hydrocarbure |
GB2233672A (en) * | 1989-06-30 | 1991-01-16 | Shell Int Research | High temperature treatment of stainless steals used in high temperature reactors |
US5133813A (en) * | 1990-07-03 | 1992-07-28 | Tokyo Heat Treating Company Ltd. | Gas-carburizing process and apparatus |
US5342455A (en) * | 1991-07-08 | 1994-08-30 | Air Products And Chemicals, Inc. | In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas |
US5259893A (en) * | 1991-07-08 | 1993-11-09 | Air Products And Chemicals, Inc. | In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas |
US5290480A (en) * | 1992-12-22 | 1994-03-01 | Air Products And Chemicals, Inc. | Process for producing furnace atmospheres by deoxygenating non-cryogenically generated nitrogen with dissociated ammonia |
NL9300901A (nl) * | 1993-05-26 | 1994-12-16 | Skf Ind Trading & Dev | Werkwijze voor het carbonitreren van staal. |
US5431746A (en) * | 1993-08-30 | 1995-07-11 | Sps Technologies, Inc. | Method for making thin magnetic strips |
US5527399A (en) * | 1993-08-30 | 1996-06-18 | The Arnold Engineering Company | Magnetic strips and methods for making the same |
US5554230A (en) * | 1995-06-01 | 1996-09-10 | Surface Combustion, Inc. | Low dew point gas generator cooling system |
NZ314334A (en) * | 1996-04-19 | 1997-09-22 | Boc Group Inc | Method of heat treating a metal with nitrogen rich gas preheated and then having oxygen-reactive gas added |
JP3909902B2 (ja) * | 1996-12-17 | 2007-04-25 | 株式会社小松製作所 | 高耐面圧用鋼部品およびその製造方法 |
US6159306A (en) * | 1998-10-26 | 2000-12-12 | Barbour; George E. | Carburizing device and method of using the same |
US6287393B1 (en) * | 1999-09-03 | 2001-09-11 | Air Products And Chemicals, Inc. | Process for producing carburizing atmospheres |
US7276209B2 (en) * | 2003-05-12 | 2007-10-02 | Atmosphere Engineering Co., Llc | Air-gas mixing systems and methods for endothermic gas generators |
EP1739200A1 (fr) * | 2005-06-28 | 2007-01-03 | UGINE & ALZ FRANCE | Bande en acier inoxydable austenitique présentant un aspect de surface brillant et d'excellentes caractéristiques mécaniques |
EP2541177A3 (en) * | 2005-11-23 | 2014-09-24 | Surface Combustion, Inc. | Fluid delivery system for an atmospheric furnace used for treating one or more articles |
JP4191745B2 (ja) * | 2006-04-07 | 2008-12-03 | Ntn株式会社 | 浸炭窒化方法、機械部品の製造方法および機械部品 |
US20080149226A1 (en) * | 2006-12-26 | 2008-06-26 | Karen Anne Connery | Method of optimizing an oxygen free heat treating process |
US8075420B2 (en) * | 2009-06-24 | 2011-12-13 | Acushnet Company | Hardened golf club head |
JP6555470B2 (ja) * | 2015-06-25 | 2019-08-07 | 学校法人トヨタ学園 | 浸炭制御方法 |
CN112301308A (zh) * | 2020-11-03 | 2021-02-02 | 江苏丰东热处理及表面改性工程技术研究有限公司 | 碳氮共渗热处理方法及其制得的合金零件 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1975541A (en) * | 1933-06-07 | 1934-10-02 | Frank T Bowles | Means for preserving food stuffs |
GB816051A (en) * | 1954-12-18 | 1959-07-08 | Renault | Improvements in or relating to a process for preparing a gas suitable for the case hardening of steel |
DE1608632B1 (de) * | 1962-03-21 | 1969-09-11 | Suedwestfalen Ag Stahlwerke | Verfahren zur Herstellung besonders zaeher,borhaltiger Staehle |
GB1039906A (en) * | 1963-06-13 | 1966-08-24 | Werner Theodor Schaurte | Method of producing nuts and bolts |
DE1433735B1 (de) * | 1963-09-21 | 1969-09-04 | Werner Goehring | Verfahren zur Erzielung einer Ofenatmosphaere,mit der eine oxydationsfreie Waermebehandlung von Werkstuecken aus Stahl unter gleichzeitiger Beeinflussung des Kohlenstoffgehalts durchfuehrbar ist |
CH448673A (fr) * | 1965-12-09 | 1967-12-15 | Four Electr Delemont Sa Du | Procédé de cémentation gazeuse d'acier |
US3620518A (en) * | 1967-03-23 | 1971-11-16 | Degussa | Process and device for the treatment of surfaces of workpieces in an annealing furnace |
US3663315A (en) * | 1969-03-26 | 1972-05-16 | Union Carbide Corp | Gas carburization and carbonitriding |
DE2133284C3 (de) * | 1970-07-09 | 1975-11-27 | Fabrica De Utilaje Si Piese De Schimb Metalotehnica, Tirgu-Mures (Rumaenien) | Verfahren zum Weichnitrieren von Stahl und Gußeisen |
GB1351234A (en) * | 1970-07-21 | 1974-04-24 | Nissan Motor | Process for forming a soft nitride layer in a metal surface |
US4035203A (en) * | 1973-12-21 | 1977-07-12 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for the heat-treatment of steel and for the control of said treatment |
US3950192A (en) * | 1974-10-30 | 1976-04-13 | Monsanto Company | Continuous carburizing method |
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 |
-
1973
- 1973-10-26 GB GB4996373A patent/GB1471880A/en not_active Expired
-
1974
- 1974-10-25 DE DE19742450879 patent/DE2450879A1/de not_active Ceased
- 1974-10-25 IT IT28775/74A patent/IT1030736B/it active
- 1974-10-25 ZA ZA00746775A patent/ZA746775B/xx unknown
- 1974-10-26 JP JP49123855A patent/JPS5083211A/ja active Pending
- 1974-10-28 FR FR7435925A patent/FR2249179B1/fr not_active Expired
-
1981
- 1981-03-13 US US06/243,230 patent/US4386972A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ZA746775B (en) | 1975-11-26 |
GB1471880A (en) | 1977-04-27 |
FR2249179B1 (it) | 1979-03-16 |
DE2450879A1 (de) | 1975-04-30 |
JPS5083211A (it) | 1975-07-05 |
FR2249179A1 (it) | 1975-05-23 |
US4386972A (en) | 1983-06-07 |
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