IT1041591B - PROCEDURE FOR THE NITRURATION OF IRON AND STEEL IN SALT BATHS - Google Patents

PROCEDURE FOR THE NITRURATION OF IRON AND STEEL IN SALT BATHS

Info

Publication number
IT1041591B
IT1041591B IT69115/75A IT6911575A IT1041591B IT 1041591 B IT1041591 B IT 1041591B IT 69115/75 A IT69115/75 A IT 69115/75A IT 6911575 A IT6911575 A IT 6911575A IT 1041591 B IT1041591 B IT 1041591B
Authority
IT
Italy
Prior art keywords
nitruration
iron
procedure
steel
salt baths
Prior art date
Application number
IT69115/75A
Other languages
Italian (it)
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 IT1041591B publication Critical patent/IT1041591B/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
    • C23C8/40—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)
IT69115/75A 1974-08-29 1975-08-21 PROCEDURE FOR THE NITRURATION OF IRON AND STEEL IN SALT BATHS IT1041591B (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 (1)

Publication Number Publication Date
IT1041591B true IT1041591B (en) 1980-01-10

Family

ID=5924348

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69115/75A IT1041591B (en) 1974-08-29 1975-08-21 PROCEDURE FOR THE NITRURATION OF 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)

Families Citing this family (6)

* 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
BR8705165A (en) * 1987-09-14 1989-04-11 Alcoa Aluminio Do Nordeste S A PROCESS FOR THERMAL TREATMENT OF METALLIC ALLOYS
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.
FR2972459B1 (en) 2011-03-11 2013-04-12 Hydromecanique & Frottement FOUNDED SALT BATHS FOR NITRIDING STEEL MECHANICAL PARTS, AND METHOD FOR IMPLEMENTING THE SAME

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU805954A3 (en) * 1973-03-05 1981-02-15 Дегусса (Фирма) Method of regenerating carbonate-containing salt melts for nitriding and/or carburization of metallic articles
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

Also Published As

Publication number Publication date
ATA665875A (en) 1978-08-15
CH616455A5 (en) 1980-03-31
FR2283243B1 (en) 1978-04-07
DE2441310B2 (en) 1977-09-22
AR201799A1 (en) 1975-04-15
FR2283243A1 (en) 1976-03-26
DE2441310C3 (en) 1978-05-18
ES440319A1 (en) 1977-03-16
DE2441310A1 (en) 1976-03-11
GB1507904A (en) 1978-04-19
SE7509535L (en) 1976-03-01
JPS5150241A (en) 1976-05-01
ZA755450B (en) 1976-07-28
IN145225B (en) 1978-09-09
AT349046B (en) 1979-03-12
CA1058064A (en) 1979-07-10
BR7505152A (en) 1976-08-03

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940831