[go: up one dir, main page]

PL353217A1 - Method for nitro-carburization of metal workpieces - Google Patents

Method for nitro-carburization of metal workpieces

Info

Publication number
PL353217A1
PL353217A1 PL00353217A PL35321700A PL353217A1 PL 353217 A1 PL353217 A1 PL 353217A1 PL 00353217 A PL00353217 A PL 00353217A PL 35321700 A PL35321700 A PL 35321700A PL 353217 A1 PL353217 A1 PL 353217A1
Authority
PL
Poland
Prior art keywords
treatment
carburization
nitro
carbon dioxide
carbon
Prior art date
Application number
PL00353217A
Other languages
Polish (pl)
Other versions
PL195105B1 (en
Inventor
Hans-Peter Schmidt
Original Assignee
Messer Griesheim Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Messer Griesheim Gmbh filed Critical Messer Griesheim Gmbh
Publication of PL353217A1 publication Critical patent/PL353217A1/en
Publication of PL195105B1 publication Critical patent/PL195105B1/en

Links

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

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)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention relates to a known method for nitro-carburization of metal workpieces, whereby the workpieces are treated in a treatment chamber with a treatment atmosphere containing nitrogen, carbon monoxide and hydrogen at treatment temperature, whereby carbon dioxide is used as carbon contributor to generate the treatment atmosphere. The invention aims at modifying said method so as to be able to regulate as much as possible the type and volume of nitride formation. To this end, a gas flow (1; 21) containing carbon dioxide is introduced into a reactor (4; 24) connected upstream from the treatment chamber (6; 27) and modified therein into a carburizing gas (5; 25) by reaction with a hydrogen contributor (2; 22) at a reaction temperature above treatment temperature, said gas having a higher carbon activity at treatment temperature than the gas flow (1; 21) containing carbon dioxide.
PL00353217A 1999-08-25 2000-08-04 Method for nitro-carburization of metal workpieces PL195105B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940370A DE19940370C2 (en) 1999-08-25 1999-08-25 Process for nitrocarburizing metallic workpieces
PCT/EP2000/007576 WO2001014611A1 (en) 1999-08-25 2000-08-04 Method for nitro-carburization of metal workpieces

Publications (2)

Publication Number Publication Date
PL353217A1 true PL353217A1 (en) 2003-11-03
PL195105B1 PL195105B1 (en) 2007-08-31

Family

ID=7919599

Family Applications (1)

Application Number Title Priority Date Filing Date
PL00353217A PL195105B1 (en) 1999-08-25 2000-08-04 Method for nitro-carburization of metal workpieces

Country Status (7)

Country Link
EP (1) EP1230415B1 (en)
AT (1) ATE257865T1 (en)
CZ (1) CZ298996B6 (en)
DE (2) DE19940370C2 (en)
ES (1) ES2214316T3 (en)
PL (1) PL195105B1 (en)
WO (1) WO2001014611A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6801111B2 (en) * 2002-08-21 2004-10-05 Square D Company Latch for an electrical device
US7621201B2 (en) * 2008-03-05 2009-11-24 Gm Global Technology Operations, Inc. Hot forming tools for aluminum and magnesium sheets
DE102023133600A1 (en) * 2022-12-01 2024-06-06 Gottfried Pöckl Process for nitriding components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3071318D1 (en) * 1979-07-09 1986-02-13 Ford Motor Co Method of heat treating ferrous workpieces
JPH01129957A (en) * 1987-11-13 1989-05-23 Toyota Motor Corp Surface treatment for maraging steel
DE3937699A1 (en) * 1989-11-13 1991-05-16 Thaelmann Schwermaschbau Veb Producing epsilon carbonitride coatings on ferrous components - by controlling gas mixt. compsn. with respect to nitriding and carburising indices required to produce predetermined coating compsn.
DE4229803A1 (en) * 1992-09-11 1994-03-17 Iva Industrieoefen Verfahren A Control of nitriding and nitro:carburising atmospheres - by oxygen probe using fully dissociated gas as reference gas
DE19514932A1 (en) * 1995-04-22 1996-10-24 Ipsen Ind Int Gmbh Method and device for regulating the CO content of an oven atmosphere for carburizing and carbonitriding metallic workpieces
DE19652125C1 (en) * 1996-12-14 1998-04-30 Volker Dipl Ing Leverkus Nitriding or carbonitriding atmosphere regulation
DE19719225C1 (en) * 1997-05-07 1998-08-06 Volker Dipl Ing Leverkus Method and apparatus for controlling a nitriding or nitro-carburising atmosphere

Also Published As

Publication number Publication date
EP1230415A1 (en) 2002-08-14
CZ2002645A3 (en) 2003-02-12
DE19940370A1 (en) 2001-03-01
DE19940370C2 (en) 2001-07-12
PL195105B1 (en) 2007-08-31
ATE257865T1 (en) 2004-01-15
DE50005043D1 (en) 2004-02-19
ES2214316T3 (en) 2004-09-16
CZ298996B6 (en) 2008-04-02
EP1230415B1 (en) 2004-01-14
WO2001014611A1 (en) 2001-03-01

Similar Documents

Publication Publication Date Title
CA2054036C (en) Development process of a thermal treatment atmosphere and thermal treat ment plant
MX247872B (en) Denitrification method.
PL341933A1 (en) Method of obtaining aqueous solution of hydrogen peroxide directly from elementary oxygen and hydrogen and apparatus therefor
MXPA02007348A (en) Modified low temperature case hardening processes.
IN2003CH01437A (en)
SG46675A1 (en) Method for controlling the coversion of iron-containing reactor feed into iron carbide
CA2374804A1 (en) Process for nitrous oxide purification
CA2355797A1 (en) Process of treating a stainless steel matrix
CA2326239A1 (en) Low pressure carbonitriding method for metal alloy parts
PL353217A1 (en) Method for nitro-carburization of metal workpieces
US5906803A (en) Process for removing ammonia from gasification gas
EP0512254A3 (en) Process for uniform thermochemical treatment of steel pieces having difficult accessible areas
US4699656A (en) Deoxidation of molten copper
JPH02217459A (en) Heat-treating method of sulgs by carburization, carbonitriding or heating before hardening and equipment therefor
EP1081094A3 (en) Process for reforming methane with carbon dioxide
RU2109080C1 (en) Plant for gas low-temperature thermochemical treatment of steels and alloys
CA1133809A (en) Method of nitriding steel
WO2002057393A8 (en) A method of producing synthesis gas from a regeneration of spent cracking catalyst
RU1349318C (en) Method of nitriding steel articles
TW200700315A (en) Pefining method of carbon dioxide
MX9400013A (en) PROCEDURE FOR PRODUCING OVEN ATMOSPHERES THROUGH THE DEOXYGENATION OF NITROGEN NON-CRYOGENICALLY GENERATED WITH DISSOCIATED AMMONIA.
JPS60194014A (en) Iron material heat treatment
RU1779225C (en) Method for annealing iron powder
US20040231753A1 (en) Method for carburizing and carbonitriding steel by carbon oxide
JPS56100111A (en) Manufacture of iron nitride