FR2283243A1 - PROCESS FOR NITRURING IRON AND STEEL IN SALT BATHS - Google Patents

PROCESS FOR NITRURING IRON AND STEEL IN SALT BATHS

Info

Publication number
FR2283243A1
FR2283243A1 FR7526174A FR7526174A FR2283243A1 FR 2283243 A1 FR2283243 A1 FR 2283243A1 FR 7526174 A FR7526174 A FR 7526174A FR 7526174 A FR7526174 A FR 7526174A FR 2283243 A1 FR2283243 A1 FR 2283243A1
Authority
FR
France
Prior art keywords
nitruring
iron
steel
salt baths
baths
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
Application number
FR7526174A
Other languages
French (fr)
Other versions
FR2283243B1 (en
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2283243A1 publication Critical patent/FR2283243A1/en
Application granted granted Critical
Publication of FR2283243B1 publication Critical patent/FR2283243B1/fr
Granted 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
    • C23C8/40—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
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding 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)
  • Processing Of Solid Wastes (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
FR7526174A 1974-08-29 1975-08-25 PROCESS FOR NITRURING IRON AND STEEL IN SALT BATHS Granted FR2283243A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2441310A DE2441310C3 (en) 1974-08-29 1974-08-29 Process for nitriding iron and steel in salt baths

Publications (2)

Publication Number Publication Date
FR2283243A1 true FR2283243A1 (en) 1976-03-26
FR2283243B1 FR2283243B1 (en) 1978-04-07

Family

ID=5924348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7526174A Granted FR2283243A1 (en) 1974-08-29 1975-08-25 PROCESS FOR NITRURING IRON AND STEEL IN SALT BATHS

Country Status (14)

Country Link
JP (1) JPS5150241A (en)
AR (1) AR201799A1 (en)
AT (1) AT349046B (en)
BR (1) BR7505152A (en)
CA (1) CA1058064A (en)
CH (1) CH616455A5 (en)
DE (1) DE2441310C3 (en)
ES (1) ES440319A1 (en)
FR (1) FR2283243A1 (en)
GB (1) GB1507904A (en)
IN (1) IN145225B (en)
IT (1) IT1041591B (en)
SE (1) SE7509535L (en)
ZA (1) ZA755450B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002484A1 (en) * 1987-09-14 1989-03-23 Alcoa Aluminio Do Nordeste S/A - Alconor Process for the thermal treatment of metal alloys
WO2012146839A1 (en) 2011-03-11 2012-11-01 H.E.F. Molten-salt bath for nitriding mechanical steel parts, and implementation method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1576143A (en) * 1977-07-20 1980-10-01 Brico Eng Sintered metal articles
US4938452A (en) * 1988-12-10 1990-07-03 Aisan Kogyo Kabushiki Kaisha Air control device for internal combustion engine
DE4119820C1 (en) * 1991-06-15 1992-09-03 Goetz Dr. 5400 Koblenz De Baum Treatment of iron@ (alloys) on same support - comprises nitriding in molten alkali metal cyanate and quenching in hot aq. salt bath
DE4324740C1 (en) * 1993-07-23 1994-06-16 Degussa Prodn of salt mixture for hardening of steel parts - by pressing together potassium cyanate, potassium carbonate and sodium carbonate.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220595A1 (en) * 1973-03-05 1974-10-04 Degussa
FR2234380A1 (en) * 1973-06-20 1975-01-17 Stephanois Rech Mecanique Cent Regenerating cyanate-carbonate molten salt baths - by adding amide pretreated to liberate ammonia

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220595A1 (en) * 1973-03-05 1974-10-04 Degussa
FR2234380A1 (en) * 1973-06-20 1975-01-17 Stephanois Rech Mecanique Cent Regenerating cyanate-carbonate molten salt baths - by adding amide pretreated to liberate ammonia

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002484A1 (en) * 1987-09-14 1989-03-23 Alcoa Aluminio Do Nordeste S/A - Alconor Process for the thermal treatment of metal alloys
WO2012146839A1 (en) 2011-03-11 2012-11-01 H.E.F. Molten-salt bath for nitriding mechanical steel parts, and implementation method
US9611534B2 (en) 2011-03-11 2017-04-04 H.E.F. Molten-salt bath for nitriding mechanical parts made of steel, and implementation method

Also Published As

Publication number Publication date
GB1507904A (en) 1978-04-19
DE2441310B2 (en) 1977-09-22
IT1041591B (en) 1980-01-10
IN145225B (en) 1978-09-09
SE7509535L (en) 1976-03-01
BR7505152A (en) 1976-08-03
CH616455A5 (en) 1980-03-31
DE2441310A1 (en) 1976-03-11
AR201799A1 (en) 1975-04-15
CA1058064A (en) 1979-07-10
FR2283243B1 (en) 1978-04-07
AT349046B (en) 1979-03-12
ZA755450B (en) 1976-07-28
JPS5150241A (en) 1976-05-01
ATA665875A (en) 1978-08-15
ES440319A1 (en) 1977-03-16
DE2441310C3 (en) 1978-05-18

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