AT349046B - Umweltfreundliches verfahren zum nitrieren von eisen und stahl in salzbaedern - Google Patents

Umweltfreundliches verfahren zum nitrieren von eisen und stahl in salzbaedern

Info

Publication number
AT349046B
AT349046B AT665875A AT665875A AT349046B AT 349046 B AT349046 B AT 349046B AT 665875 A AT665875 A AT 665875A AT 665875 A AT665875 A AT 665875A AT 349046 B AT349046 B AT 349046B
Authority
AT
Austria
Prior art keywords
saltbeds
nitrating
iron
steel
environmentally friendly
Prior art date
Application number
AT665875A
Other languages
English (en)
Other versions
ATA665875A (de
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
Publication of ATA665875A publication Critical patent/ATA665875A/de
Application granted granted Critical
Publication of AT349046B publication Critical patent/AT349046B/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
    • C23C8/42—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)
AT665875A 1974-08-29 1975-08-28 Umweltfreundliches verfahren zum nitrieren von eisen und stahl in salzbaedern AT349046B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2441310A DE2441310C3 (de) 1974-08-29 1974-08-29 Verfahren zum Nitrieren von Eisen und Stahl in Salzbädern

Publications (2)

Publication Number Publication Date
ATA665875A ATA665875A (de) 1978-08-15
AT349046B true AT349046B (de) 1979-03-12

Family

ID=5924348

Family Applications (1)

Application Number Title Priority Date Filing Date
AT665875A AT349046B (de) 1974-08-29 1975-08-28 Umweltfreundliches verfahren zum nitrieren von eisen und stahl in salzbaedern

Country Status (14)

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

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 (pt) * 1987-09-14 1989-04-11 Alcoa Aluminio Do Nordeste S A Processo para o tratamento termico de ligas metalicas
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 (de) * 1993-07-23 1994-06-16 Degussa Verfahren zur Herstellung eines Härtesalzes in stückiger Form
FR2972459B1 (fr) * 2011-03-11 2013-04-12 Hydromecanique & Frottement Bains de sels fondus pour la nitruration de pieces mecaniques en acier, et un procede de mise en oeuvre

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU805954A3 (ru) * 1973-03-05 1981-02-15 Дегусса (Фирма) Способ регенерации карбонатсодержащихСОлЕВыХ РАСплАВОВ дл НиТРиРОВАНи и/или НАуглЕРОжиВАНи МЕТАлличЕСКиХиздЕлий
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
CH616455A5 (en) 1980-03-31
BR7505152A (pt) 1976-08-03
FR2283243A1 (fr) 1976-03-26
ES440319A1 (es) 1977-03-16
GB1507904A (en) 1978-04-19
JPS5150241A (en) 1976-05-01
AR201799A1 (es) 1975-04-15
DE2441310A1 (de) 1976-03-11
ZA755450B (en) 1976-07-28
IT1041591B (it) 1980-01-10
FR2283243B1 (de) 1978-04-07
DE2441310C3 (de) 1978-05-18
SE7509535L (sv) 1976-03-01
IN145225B (de) 1978-09-09
CA1058064A (en) 1979-07-10
DE2441310B2 (de) 1977-09-22
ATA665875A (de) 1978-08-15

Similar Documents

Publication Publication Date Title
AT315216B (de) Verfahren und Konverter zum Frischen von Roheisen zu Stahl
AT372703B (de) Verfahren zum konzentrieren von eisen
AT298535B (de) Verfahren zum Frischen von Roheisen zu Stahl
AT334935B (de) Doppelauslass-lanze zum frischen von stahl bei konverter-prozessen
AT350992B (de) Verfahren und vorrichtung zum kuehlen von warmgewalztem stahldraht
AT310893B (de) Verfahren zur Verfestigung der Oberfläche von Werkstücken aus Eisen und Stahl
ATA241775A (de) Verfahren zum kontinuierlichen vorwaermen und einschmelzen von eisenmineralien
ATA14975A (de) Verfahren zum einschmelzen von eisenschwamm
AT337920B (de) Verfahren und anordnung zur regelung des stranggiessprozesses beim vergiessen von stahl
AT333230B (de) Verfahren zum walzen von metallstabmaterial
AT349046B (de) Umweltfreundliches verfahren zum nitrieren von eisen und stahl in salzbaedern
AT347993B (de) Verfahren zum haerten von werkstuecken aus stahl und vorrichtung zur durchfuehrung des verfahrens
AT332580B (de) Verfahren und einrichtung zum kontinuierlichen stranggiessen von unberuhigtem oder halbberuhigtem stahl
ATA1017473A (de) Verfahren und anlage zum stranggiessen von stahl
AT306268B (de) Verfahren zum Stranggießen von Stahl
AT355887B (de) Verfahren zum korrosionsschutz von eisen und stahl
AT320884B (de) Verfahren zum Feinen und Gießen von Stahl
AT347994B (de) Verfahren zum nitrieren von metallen
AT299412B (de) Verfahren zum wetterfesten Abdichten von Eisen- und Stahlaußenflächen
AT304987B (de) Verfahren zur Oberflächenbehandlung von Eisen und Stahl
ATA333074A (de) Verfahren zur phosphatierung von eisen und stahl
AT321055B (de) Verfahren zur Phosphatierung von Eisen und Stahl
ATA150075A (de) Verfahren zum entschwefeln von geschmolzenem eisen
AT336053B (de) Statisches verfahren zur steuerung der frischreaktionen von stahlroheisen in einem sauerstoffaufblas- konverter
CH437389A (de) Verfahren zum Herstellen von Roheisen in einem Drehofen

Legal Events

Date Code Title Description
ELA Expired due to lapse of time