CH615948A5 - - Google Patents

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Publication number
CH615948A5
CH615948A5 CH263075A CH263075A CH615948A5 CH 615948 A5 CH615948 A5 CH 615948A5 CH 263075 A CH263075 A CH 263075A CH 263075 A CH263075 A CH 263075A CH 615948 A5 CH615948 A5 CH 615948A5
Authority
CH
Switzerland
Prior art keywords
gas
gas mixture
conveyor
furnace
workpieces
Prior art date
Application number
CH263075A
Other languages
German (de)
English (en)
Inventor
Wolfgang Kieferle
Original Assignee
Hawera Probst Kg Hartmetall
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
Priority claimed from DE2412982A external-priority patent/DE2412982B2/de
Priority claimed from DE19742457605 external-priority patent/DE2457605A1/de
Application filed by Hawera Probst Kg Hartmetall filed Critical Hawera Probst Kg Hartmetall
Publication of CH615948A5 publication Critical patent/CH615948A5/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
    • C23C8/06—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
CH263075A 1974-03-18 1975-03-03 CH615948A5 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2412982A DE2412982B2 (de) 1974-03-18 1974-03-18 Verfahren zum Kern- und/oder Oberflächenhärten von Werkstücken aus Stahl sowie Vorrichtung zur Durchführung des Verfahrens
DE19742457605 DE2457605A1 (de) 1974-12-05 1974-12-05 Vorrichtung zum kern- und/oder oberflaechenhaerten von werkstuecken aus stahl

Publications (1)

Publication Number Publication Date
CH615948A5 true CH615948A5 (fi) 1980-02-29

Family

ID=25766820

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263075A CH615948A5 (fi) 1974-03-18 1975-03-03

Country Status (12)

Country Link
US (1) US4006042A (fi)
JP (1) JPS50131805A (fi)
AT (1) AT347993B (fi)
BR (1) BR7501562A (fi)
CA (1) CA1052669A (fi)
CH (1) CH615948A5 (fi)
DD (1) DD116264A5 (fi)
ES (1) ES435749A1 (fi)
FR (1) FR2264889B1 (fi)
GB (1) GB1489106A (fi)
IT (1) IT1034237B (fi)
NL (1) NL7503114A (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5170136A (en) * 1974-12-17 1976-06-17 Tomio Tate Henseirooshoshinai gasushintanho
JPS5277836A (en) * 1975-12-23 1977-06-30 Fujikoshi Kk Surface treatment of martensitic stainless steel
US4123294A (en) * 1977-01-28 1978-10-31 General Motors Corporation Method of separating ferritic steel or ductile iron from certain nonferrous metals
JPS55128577A (en) * 1979-03-28 1980-10-04 Taiyo Sanso Kk Manufacture of carburizing-nitriding atmosphere gas
EP0033403A1 (en) * 1980-01-31 1981-08-12 Ford Motor Company Method of treating the surfaces of high carbon steel bodies and bodies of high carbon steel
GB2076023B (en) * 1980-05-02 1983-08-03 Air Prod & Chem Gas carburising
IT1171606B (it) * 1981-10-23 1987-06-10 Italtractor Procedimento per trattamento termico di cementazione ad alta temperatura con atmosfera cementante prodotta in situ tempra diretta rinvenimento alle estremita' di distensione totale di boccole per catenarie di trattori o mezzi cingolati
US4495004A (en) * 1983-10-20 1985-01-22 Italtractor Itm Spa Process for high-temperature carburizing treatment of track bushes for tractors or tracked vehicles
US20090173417A1 (en) * 2008-01-08 2009-07-09 Soren Wiberg Method for annealing or hardening of metals
EP2087955A1 (en) * 2008-01-08 2009-08-12 Linde Aktiengesellschaft Sintering of steel in an atmosphere comprising nitrogen and carbon monoxide
EP2578704A1 (en) * 2011-10-07 2013-04-10 Linde Aktiengesellschaft Method and system for carburizing or carbonitriding a component and correspondingly treated component

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524362A (en) * 1939-01-28 1940-08-05 Shell Marketing Company Ltd Improvements in the case hardening of ferrous metals or ferrous alloys
US2934330A (en) * 1953-04-09 1960-04-26 Metallurg Processes Co Apparatus for producing controlled furnace atmospheres
US2975083A (en) * 1959-11-05 1961-03-14 William E Engelhard Carburizing procedure
US3185463A (en) * 1960-07-18 1965-05-25 Metallurg D Esperance Longdoz Apparatus for conditioning air and gases for annealing steel plates and the like
DE1433735B1 (de) * 1963-09-21 1969-09-04 Werner Goehring Verfahren zur Erzielung einer Ofenatmosphaere,mit der eine oxydationsfreie Waermebehandlung von Werkstuecken aus Stahl unter gleichzeitiger Beeinflussung des Kohlenstoffgehalts durchfuehrbar ist
US3397875A (en) * 1966-05-20 1968-08-20 Leeds & Northrup Co Apparatus for maintaining a carburizing atmosphere during heat treatment

Also Published As

Publication number Publication date
DD116264A5 (fi) 1975-11-12
FR2264889A1 (fi) 1975-10-17
AT347993B (de) 1979-01-25
CA1052669A (en) 1979-04-17
NL7503114A (nl) 1975-09-22
FR2264889B1 (fi) 1979-03-16
BR7501562A (pt) 1975-12-16
JPS50131805A (fi) 1975-10-18
AU7913475A (en) 1976-09-23
ES435749A1 (es) 1977-05-01
US4006042A (en) 1977-02-01
IT1034237B (it) 1979-09-10
GB1489106A (en) 1977-10-19
ATA200775A (de) 1978-06-15

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PL Patent ceased