PL324543A1 - Method of thermally treating iron alloy workpieces in an active atmosphere of high-carbon potential - Google Patents

Method of thermally treating iron alloy workpieces in an active atmosphere of high-carbon potential

Info

Publication number
PL324543A1
PL324543A1 PL98324543A PL32454398A PL324543A1 PL 324543 A1 PL324543 A1 PL 324543A1 PL 98324543 A PL98324543 A PL 98324543A PL 32454398 A PL32454398 A PL 32454398A PL 324543 A1 PL324543 A1 PL 324543A1
Authority
PL
Poland
Prior art keywords
iron alloy
thermally treating
carbon potential
treating iron
alloy workpieces
Prior art date
Application number
PL98324543A
Inventor
Gianluca Porto
Massimo Beltramo
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of PL324543A1 publication Critical patent/PL324543A1/en

Links

Classifications

    • 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
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Carbon And Carbon Compounds (AREA)
PL98324543A 1997-01-29 1998-01-28 Method of thermally treating iron alloy workpieces in an active atmosphere of high-carbon potential PL324543A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97TO000065A IT1291479B1 (en) 1997-01-29 1997-01-29 PROCESS OF HEAT TREATMENT OF METALLIC PIECES WITH A FERROUS BASE IN AN ACTIVE ATMOSPHERE WITH A HIGH CARBON POTENTIAL.

Publications (1)

Publication Number Publication Date
PL324543A1 true PL324543A1 (en) 1998-08-03

Family

ID=11415278

Family Applications (1)

Application Number Title Priority Date Filing Date
PL98324543A PL324543A1 (en) 1997-01-29 1998-01-28 Method of thermally treating iron alloy workpieces in an active atmosphere of high-carbon potential

Country Status (9)

Country Link
EP (1) EP0856587A1 (en)
JP (1) JPH10298735A (en)
KR (1) KR19980070837A (en)
CN (1) CN1197036A (en)
BR (1) BR9800455A (en)
CA (1) CA2228074A1 (en)
ID (1) ID19683A (en)
IT (1) IT1291479B1 (en)
PL (1) PL324543A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620518A (en) * 1967-03-23 1971-11-16 Degussa Process and device for the treatment of surfaces of workpieces in an annealing furnace
GB1598826A (en) * 1977-03-11 1981-09-23 Boc Ltd Heat treatment of metals
DE3630833A1 (en) * 1986-09-10 1988-03-17 Linde Ag METHOD AND DEVICE FOR HEAT TREATING METAL WORKPIECES
US5364476A (en) * 1993-11-08 1994-11-15 Surface Combustion, Inc. Industrial variable carbon potential gas generator
US5441581A (en) * 1994-06-06 1995-08-15 Praxair Technology, Inc. Process and apparatus for producing heat treatment atmospheres
DE19545764C2 (en) * 1995-12-07 2000-02-17 Linde Ag Process for producing protective gas for a heat treatment furnace and heat treatment plant

Also Published As

Publication number Publication date
KR19980070837A (en) 1998-10-26
ITTO970065A1 (en) 1998-07-29
BR9800455A (en) 1999-06-29
ID19683A (en) 1998-07-30
JPH10298735A (en) 1998-11-10
CN1197036A (en) 1998-10-28
IT1291479B1 (en) 1999-01-11
CA2228074A1 (en) 1998-07-29
EP0856587A1 (en) 1998-08-05

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