ATE12951T1 - Umweltfreundliches verfahren zum aufkohlen von stahl im salzbad. - Google Patents

Umweltfreundliches verfahren zum aufkohlen von stahl im salzbad.

Info

Publication number
ATE12951T1
ATE12951T1 AT81110690T AT81110690T ATE12951T1 AT E12951 T1 ATE12951 T1 AT E12951T1 AT 81110690 T AT81110690 T AT 81110690T AT 81110690 T AT81110690 T AT 81110690T AT E12951 T1 ATE12951 T1 AT E12951T1
Authority
AT
Austria
Prior art keywords
salt
alkaline earth
carburizing
steel
earth halide
Prior art date
Application number
AT81110690T
Other languages
English (en)
Inventor
Heinrich Dipl-Ing Michel
Alexander Pralea
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Application granted granted Critical
Publication of ATE12951T1 publication Critical patent/ATE12951T1/de

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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/52—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 liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
    • C23C8/54—Carbo-nitriding
    • C23C8/56—Carbo-nitriding 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/44—Carburising
    • C23C8/46—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
AT81110690T 1980-12-23 1981-12-22 Umweltfreundliches verfahren zum aufkohlen von stahl im salzbad. ATE12951T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3048607A DE3048607C2 (de) 1980-12-23 1980-12-23 Cyanidfreies Verfahren zum Aufkohlen von Stahl und Zugabesalz zur Durchführung des Verfahrens
EP81110690A EP0054962B1 (de) 1980-12-23 1981-12-22 Umweltfreundliches Verfahren zum Aufkohlen von Stahl im Salzbad

Publications (1)

Publication Number Publication Date
ATE12951T1 true ATE12951T1 (de) 1985-05-15

Family

ID=6120037

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81110690T ATE12951T1 (de) 1980-12-23 1981-12-22 Umweltfreundliches verfahren zum aufkohlen von stahl im salzbad.

Country Status (4)

Country Link
EP (1) EP0054962B1 (de)
AT (1) ATE12951T1 (de)
CH (1) CH647002A5 (de)
DE (2) DE3048607C2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6165597A (en) * 1998-08-12 2000-12-26 Swagelok Company Selective case hardening processes at low temperature
US6093303A (en) 1998-08-12 2000-07-25 Swagelok Company Low temperature case hardening processes
US6547888B1 (en) 2000-01-28 2003-04-15 Swagelok Company Modified low temperature case hardening processes
DE102006026883B8 (de) * 2006-06-09 2007-10-04 Durferrit Gmbh Verfahren zum Härten von Edelstahl und Salzschmelze zur Durchführung des Verfahrens
DE102007051949B3 (de) 2007-10-31 2009-03-12 Durferrit Gmbh Verfahren zum Härten von Oberflächen von Werkstücken aus Edelstahl und Verwendung einer Salzschmelze zur Durchführung des Verfahrens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053243A (de) * 1900-01-01
US1952090A (en) * 1931-07-11 1934-03-27 American Cyanamid Co Case-hardening metals

Also Published As

Publication number Publication date
DE3170212D1 (en) 1985-05-30
EP0054962B1 (de) 1985-04-24
DE3048607C2 (de) 1983-07-07
EP0054962A1 (de) 1982-06-30
DE3048607A1 (de) 1982-07-01
CH647002A5 (de) 1984-12-28

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee