EP0512254A3 - Process for uniform thermochemical treatment of steel pieces having difficult accessible areas - Google Patents
Process for uniform thermochemical treatment of steel pieces having difficult accessible areas Download PDFInfo
- Publication number
- EP0512254A3 EP0512254A3 EP19920105758 EP92105758A EP0512254A3 EP 0512254 A3 EP0512254 A3 EP 0512254A3 EP 19920105758 EP19920105758 EP 19920105758 EP 92105758 A EP92105758 A EP 92105758A EP 0512254 A3 EP0512254 A3 EP 0512254A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel pieces
- thermochemical treatment
- accessible areas
- mpa
- difficult accessible
- 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.)
- Granted
Links
- 238000011282 treatment Methods 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000000930 thermomechanical effect Effects 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
- C23C8/08—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
- C23C8/08—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Articles (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Housings And Mounting Of Transformers (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Fire-Extinguishing Compositions (AREA)
- Treatment Of Sludge (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4115135 | 1991-05-08 | ||
DE4115135A DE4115135C1 (en) | 1991-05-08 | 1991-05-08 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0512254A2 EP0512254A2 (en) | 1992-11-11 |
EP0512254A3 true EP0512254A3 (en) | 1993-03-24 |
EP0512254B1 EP0512254B1 (en) | 1996-06-19 |
EP0512254B2 EP0512254B2 (en) | 2000-01-19 |
Family
ID=6431301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92105758A Expired - Lifetime EP0512254B2 (en) | 1991-05-08 | 1992-04-03 | Process for uniform thermochemical treatment of steel pieces having difficult accessible areas |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0512254B2 (en) |
JP (1) | JP3258071B2 (en) |
AT (1) | ATE139579T1 (en) |
CZ (1) | CZ288263B6 (en) |
DE (2) | DE4115135C1 (en) |
ES (1) | ES2088515T5 (en) |
HU (1) | HU209457B (en) |
PL (1) | PL291528A1 (en) |
RU (1) | RU2052535C1 (en) |
TW (1) | TW223128B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4445154A1 (en) * | 1994-12-17 | 1996-06-20 | Fischer Artur Werke Gmbh | Process for producing an expansion anchor made of corrosion-resistant steel |
DE10062862C2 (en) * | 2000-12-16 | 2003-03-27 | Ald Vacuum Techn Ag | Device for the uniform thermochemical treatment of metallic workpieces with a reactive gas |
DE10109565B4 (en) | 2001-02-28 | 2005-10-20 | Vacuheat Gmbh | Method and device for partial thermochemical vacuum treatment of metallic workpieces |
DE10139620A1 (en) * | 2001-08-11 | 2003-02-27 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines and a method for hardening the same |
DE102004058838B4 (en) * | 2004-12-06 | 2007-11-29 | Schramm, Armin | Nozzle insert made of steel |
DE102005061781A1 (en) * | 2005-12-23 | 2007-06-28 | Schaeffler Kg | Injector for automotive fuel injection system has laser-cut micro detents in contact zone sidewall around piston |
DE102013006589A1 (en) * | 2013-04-17 | 2014-10-23 | Ald Vacuum Technologies Gmbh | Method and device for the thermochemical hardening of workpieces |
RU2651841C2 (en) * | 2015-12-23 | 2018-04-24 | Олег Владимирович Ольшанский | Method for processing metal parts under conditions of acoustic resonant action of flow of compressible air and gaseous chemical reagents and device for implementation thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB749992A (en) * | 1951-09-21 | 1956-06-06 | United States Steel Corp | Methods for nitriding metallic surfaces |
US2779697A (en) * | 1955-09-26 | 1957-01-29 | United States Steel Corp | Method of nitriding metallic surfaces |
GB1309257A (en) * | 1970-02-18 | 1973-03-07 | Millingford Eng Co Ltd | Method of nitriding hollow bodies |
JPS52145343A (en) * | 1976-05-29 | 1977-12-03 | Kiyoichi Ogawa | Pressurized nitriding |
DE2851983A1 (en) * | 1978-12-01 | 1980-06-04 | Degussa | METHOD FOR CARBONING HOLLOW BODIES, IN PARTICULAR NOZZLES |
EP0485686A1 (en) * | 1990-11-15 | 1992-05-20 | Degussa Aktiengesellschaft | Method of nitriding steel articles under pressure |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB114446A (en) * | 1917-01-27 | 1918-03-27 | British Carbonizing Company Lt | Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles. |
US4160680A (en) * | 1976-11-05 | 1979-07-10 | Sola Basic Industries, Inc. | Vacuum carburizing |
-
1991
- 1991-05-08 DE DE4115135A patent/DE4115135C1/de not_active Expired - Lifetime
- 1991-08-26 PL PL29152891A patent/PL291528A1/en unknown
- 1991-08-28 TW TW080106842A patent/TW223128B/zh active
- 1991-12-09 HU HU913870A patent/HU209457B/en not_active IP Right Cessation
-
1992
- 1992-04-03 EP EP92105758A patent/EP0512254B2/en not_active Expired - Lifetime
- 1992-04-03 ES ES92105758T patent/ES2088515T5/en not_active Expired - Lifetime
- 1992-04-03 AT AT92105758T patent/ATE139579T1/en active
- 1992-04-03 DE DE59206595T patent/DE59206595D1/en not_active Expired - Lifetime
- 1992-05-06 CZ CS19921375A patent/CZ288263B6/en not_active IP Right Cessation
- 1992-05-06 JP JP11353092A patent/JP3258071B2/en not_active Expired - Fee Related
- 1992-05-07 RU SU925011449A patent/RU2052535C1/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB749992A (en) * | 1951-09-21 | 1956-06-06 | United States Steel Corp | Methods for nitriding metallic surfaces |
US2779697A (en) * | 1955-09-26 | 1957-01-29 | United States Steel Corp | Method of nitriding metallic surfaces |
GB1309257A (en) * | 1970-02-18 | 1973-03-07 | Millingford Eng Co Ltd | Method of nitriding hollow bodies |
JPS52145343A (en) * | 1976-05-29 | 1977-12-03 | Kiyoichi Ogawa | Pressurized nitriding |
DE2851983A1 (en) * | 1978-12-01 | 1980-06-04 | Degussa | METHOD FOR CARBONING HOLLOW BODIES, IN PARTICULAR NOZZLES |
EP0485686A1 (en) * | 1990-11-15 | 1992-05-20 | Degussa Aktiengesellschaft | Method of nitriding steel articles under pressure |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, unexamined applications, Field C, Band 5, Nr. 124, 11. August 1981 THE PATENT OFFICE JAPANESE GOVERNMENT Seite 6 C 66 * |
Also Published As
Publication number | Publication date |
---|---|
HU913870D0 (en) | 1992-02-28 |
ATE139579T1 (en) | 1996-07-15 |
TW223128B (en) | 1994-05-01 |
HUT61056A (en) | 1992-11-30 |
CS137592A3 (en) | 1992-12-16 |
RU2052535C1 (en) | 1996-01-20 |
JP3258071B2 (en) | 2002-02-18 |
ES2088515T3 (en) | 1996-08-16 |
JPH05132753A (en) | 1993-05-28 |
EP0512254A2 (en) | 1992-11-11 |
ES2088515T5 (en) | 2000-05-01 |
DE59206595D1 (en) | 1996-07-25 |
EP0512254B2 (en) | 2000-01-19 |
PL291528A1 (en) | 1992-11-16 |
EP0512254B1 (en) | 1996-06-19 |
CZ288263B6 (en) | 2001-05-16 |
HU209457B (en) | 1994-06-28 |
DE4115135C1 (en) | 1992-02-27 |
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