FR3081884B1 - Procede de cementation basse pression d'une piece comprenant de l'acier - Google Patents
Procede de cementation basse pression d'une piece comprenant de l'acier Download PDFInfo
- Publication number
- FR3081884B1 FR3081884B1 FR1854876A FR1854876A FR3081884B1 FR 3081884 B1 FR3081884 B1 FR 3081884B1 FR 1854876 A FR1854876 A FR 1854876A FR 1854876 A FR1854876 A FR 1854876A FR 3081884 B1 FR3081884 B1 FR 3081884B1
- Authority
- FR
- France
- Prior art keywords
- rate
- low pressure
- part including
- period
- neutral gas
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 4
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000005255 carburizing Methods 0.000 abstract 2
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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- C23C8/80—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Procédé de cémentation d'une pièce d'acier réalisant 1 à 30 cycles (C1, C2, C3, C4) consécutifs, chaque cycle (C1, C2, C3, C4) comprenant une étape (10) d'injection de gaz cémentant de manière à faire croître le taux surfacique de carbone jusqu'à un taux supérieur (14) prédéterminé, le gaz cémentant étant injecté à un débit compris entre 1000 Nl/h et 3000 Nl/h, à une température comprise entre 950°C et 1050°C, pendant une durée (t1), et une étape (12) d'injection d'un gaz neutre, de manière à faire décroître le taux surfacique de carbone de la pièce jusqu'à un taux inférieur (22) prédéterminé, l'étape d'injection de gaz neutre comprenant une première phase d'injection de gaz neutre, à un débit compris entre 1000 à 10000 Nl/h, pendant une durée (t2), suivie d'une deuxième phase d'injection de gaz neutre, à un débit compris entre 500 Nl/h et 3000 Nl/h, pendant une durée (t3).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1854876A FR3081884B1 (fr) | 2018-06-05 | 2018-06-05 | Procede de cementation basse pression d'une piece comprenant de l'acier |
PCT/FR2019/051338 WO2019234352A1 (fr) | 2018-06-05 | 2019-06-05 | Procédé de cémentation basse pression d'une pièce comprenant de l'acier |
CN201980037596.3A CN112218970A (zh) | 2018-06-05 | 2019-06-05 | 含钢的工件的低压渗碳方法 |
US15/734,542 US11293087B2 (en) | 2018-06-05 | 2019-06-05 | Method for low-pressure carburizing of a workpiece comprising steel |
EP19735366.7A EP3802904A1 (fr) | 2018-06-05 | 2019-06-05 | Procédé de cémentation basse pression d'une pièce comprenant de l'acier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1854876A FR3081884B1 (fr) | 2018-06-05 | 2018-06-05 | Procede de cementation basse pression d'une piece comprenant de l'acier |
FR1854876 | 2018-06-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3081884A1 FR3081884A1 (fr) | 2019-12-06 |
FR3081884B1 true FR3081884B1 (fr) | 2021-05-21 |
Family
ID=63896272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1854876A Active FR3081884B1 (fr) | 2018-06-05 | 2018-06-05 | Procede de cementation basse pression d'une piece comprenant de l'acier |
Country Status (5)
Country | Link |
---|---|
US (1) | US11293087B2 (fr) |
EP (1) | EP3802904A1 (fr) |
CN (1) | CN112218970A (fr) |
FR (1) | FR3081884B1 (fr) |
WO (1) | WO2019234352A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113502449A (zh) * | 2021-06-04 | 2021-10-15 | 中航力源液压股份有限公司 | 一种15Cr14Co12Mo5Ni2VW高强度不锈钢低压渗碳热处理方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4306919A (en) * | 1980-09-04 | 1981-12-22 | Union Carbide Corporation | Process for carburizing steel |
FR2678287B1 (fr) * | 1991-06-26 | 1993-10-29 | Etudes Constructions Mecaniques | Procede et four de cementation a basse pression. |
FR2801059B1 (fr) | 1999-11-17 | 2002-01-25 | Etudes Const Mecaniques | Procede de trempe apres cementation a basse pression |
US6547888B1 (en) * | 2000-01-28 | 2003-04-15 | Swagelok Company | Modified low temperature case hardening processes |
FR2821362B1 (fr) | 2001-02-23 | 2003-06-13 | Etudes Const Mecaniques | Procede de cementation basse pression |
DE10254846B4 (de) * | 2002-11-25 | 2011-06-16 | Robert Bosch Gmbh | Verfahren zum Einsatzhärten von Bauteilen aus Warmarbeitsstählen mittels Unterdruckaufkohlung |
US7208052B2 (en) * | 2003-12-23 | 2007-04-24 | Rolls-Royce Corporation | Method for carburizing steel components |
FR2884523B1 (fr) * | 2005-04-19 | 2008-01-11 | Const Mecaniques Sa Et | Procede et four de carbonitruration a basse pression |
US8696830B2 (en) * | 2010-07-21 | 2014-04-15 | Kenneth H. Moyer | Stainless steel carburization process |
FR3029938B1 (fr) * | 2014-12-11 | 2019-04-26 | Ecm Technologies | Procede et four de carbonitruration a basse pression |
US10494708B2 (en) * | 2015-04-02 | 2019-12-03 | Sikorsky Aircraft Corporation | Carburization of steel components |
-
2018
- 2018-06-05 FR FR1854876A patent/FR3081884B1/fr active Active
-
2019
- 2019-06-05 US US15/734,542 patent/US11293087B2/en active Active
- 2019-06-05 WO PCT/FR2019/051338 patent/WO2019234352A1/fr unknown
- 2019-06-05 EP EP19735366.7A patent/EP3802904A1/fr active Pending
- 2019-06-05 CN CN201980037596.3A patent/CN112218970A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019234352A1 (fr) | 2019-12-12 |
US11293087B2 (en) | 2022-04-05 |
EP3802904A1 (fr) | 2021-04-14 |
FR3081884A1 (fr) | 2019-12-06 |
US20210230732A1 (en) | 2021-07-29 |
CN112218970A (zh) | 2021-01-12 |
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