GB629879A - Improvements in or relating to the carburization of iron and iron alloys - Google Patents

Improvements in or relating to the carburization of iron and iron alloys

Info

Publication number
GB629879A
GB629879A GB3475047A GB3475047A GB629879A GB 629879 A GB629879 A GB 629879A GB 3475047 A GB3475047 A GB 3475047A GB 3475047 A GB3475047 A GB 3475047A GB 629879 A GB629879 A GB 629879A
Authority
GB
United Kingdom
Prior art keywords
iron
agent
atmosphere
decomposition
furnace
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.)
Expired
Application number
GB3475047A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3475047A priority Critical patent/GB629879A/en
Publication of GB629879A publication Critical patent/GB629879A/en
Expired 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
    • C23C8/06—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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Ferrous metals are carburized by a liquid agent consisting of at least two different liquids, a major component giving a mildly carburizing atmosphere and a minor component giving a strongly carburizing atmosphere on decomposition at the carburizing temperature. The agent may consist of 98 to 80 per cent by volume of methyl alcohol and 2-20 per cent of benzene or toluene and the amounts of either may be varied during the treatment. The two components may be mixed in one container and fed to the furnace through a single tube or may be in separate containers and fed to the furnace through a single tube or two separate tubes. The atmosphere produced by decomposition of the agent may be agitated by a fan.
GB3475047A 1947-12-30 1947-12-30 Improvements in or relating to the carburization of iron and iron alloys Expired GB629879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3475047A GB629879A (en) 1947-12-30 1947-12-30 Improvements in or relating to the carburization of iron and iron alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3475047A GB629879A (en) 1947-12-30 1947-12-30 Improvements in or relating to the carburization of iron and iron alloys

Publications (1)

Publication Number Publication Date
GB629879A true GB629879A (en) 1949-09-29

Family

ID=10369509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3475047A Expired GB629879A (en) 1947-12-30 1947-12-30 Improvements in or relating to the carburization of iron and iron alloys

Country Status (1)

Country Link
GB (1) GB629879A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008763B (en) * 1954-01-29 1957-05-23 Wild Barfield Electr Furnaces Process for the preparation of atmospheres for the gas cementation of iron alloys
DE1167152B (en) * 1957-12-26 1964-04-02 Renault Process for carburizing steel using methyl alcohol and gas mixtures containing it
US3201290A (en) * 1960-06-17 1965-08-17 Maag Zahnraeder & Maschinen Ag Process for automatically controlled carburizing of the surface layer of steel articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008763B (en) * 1954-01-29 1957-05-23 Wild Barfield Electr Furnaces Process for the preparation of atmospheres for the gas cementation of iron alloys
DE1167152B (en) * 1957-12-26 1964-04-02 Renault Process for carburizing steel using methyl alcohol and gas mixtures containing it
US3201290A (en) * 1960-06-17 1965-08-17 Maag Zahnraeder & Maschinen Ag Process for automatically controlled carburizing of the surface layer of steel articles

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