ES439220A1 - Method of producing a heat-treatment gas - Google Patents

Method of producing a heat-treatment gas

Info

Publication number
ES439220A1
ES439220A1 ES439220A ES439220A ES439220A1 ES 439220 A1 ES439220 A1 ES 439220A1 ES 439220 A ES439220 A ES 439220A ES 439220 A ES439220 A ES 439220A ES 439220 A1 ES439220 A1 ES 439220A1
Authority
ES
Spain
Prior art keywords
producing
heat
liquid
treatment gas
hydrocarbons
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
Application number
ES439220A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Messer Griesheim GmbH
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 ES439220A1 publication Critical patent/ES439220A1/en
Expired legal-status Critical Current

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
    • C23C8/08—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
    • 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
    • C23C8/28—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)
  • Materials Engineering (AREA)
  • Mechanical 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)

Abstract

Procedure for obtaining a protective atmosphere with a defined effect of carburation, based on argon and/or nitrogen and hydrocarbons, characterized by the fact that it undergoes an inter-accumulation and evaporation process with a liquid protective gas of composition constant, formed by a previous phase of mixing and dissolving the hydrocarbons in liquid argon and/or liquid nitrogen. (Machine-translation by Google Translate, not legally binding)
ES439220A 1974-07-20 1975-07-07 Method of producing a heat-treatment gas Expired ES439220A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2435026A DE2435026A1 (en) 1974-07-20 1974-07-20 PROCESS FOR PRODUCING A PROTECTIVE GAS WITH DEFINED CARBON EFFECT

Publications (1)

Publication Number Publication Date
ES439220A1 true ES439220A1 (en) 1977-02-16

Family

ID=5921107

Family Applications (1)

Application Number Title Priority Date Filing Date
ES439220A Expired ES439220A1 (en) 1974-07-20 1975-07-07 Method of producing a heat-treatment gas

Country Status (8)

Country Link
AT (1) AT346378B (en)
BE (1) BE831329A (en)
DE (1) DE2435026A1 (en)
ES (1) ES439220A1 (en)
FR (1) FR2278385A1 (en)
GB (1) GB1505727A (en)
NL (1) NL7508512A (en)
SE (1) SE7507804L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737610C2 (en) * 1977-08-20 1983-10-27 Messer Griesheim Gmbh, 6000 Frankfurt Process for the production of a protective gas for the heat treatment of ferrous metals
FR2515979B1 (en) * 1981-11-06 1986-07-25 Union Gaz Modernes METHOD AND INSTALLATION FOR OBTAINING A HOMOGENEOUS GAS MIXTURE, IN DETERMINED PROPORTIONS, FROM A CARRIER GAS AND A LIQUID ENRICHING ADDITIVE
FR2702495B1 (en) * 1993-03-10 1995-04-28 Air Liquide Diluted solutions of silane in liquid nitrogen.
DE10321414B4 (en) * 2003-05-13 2008-12-18 Robert Bosch Gmbh Process for the heat treatment of metallic workpieces in chamber furnaces
EP2578704A1 (en) * 2011-10-07 2013-04-10 Linde Aktiengesellschaft Method and system for carburizing or carbonitriding a component and correspondingly treated component

Also Published As

Publication number Publication date
SE7507804L (en) 1976-01-21
GB1505727A (en) 1978-03-30
DE2435026A1 (en) 1976-02-05
AT346378B (en) 1978-11-10
NL7508512A (en) 1976-01-22
FR2278385B1 (en) 1979-05-11
FR2278385A1 (en) 1976-02-13
BE831329A (en) 1975-11-03
ATA481475A (en) 1978-03-15

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