GB1223952A - Method of carburising steels in cyanide-free fused salt baths - Google Patents

Method of carburising steels in cyanide-free fused salt baths

Info

Publication number
GB1223952A
GB1223952A GB4095068A GB4095068A GB1223952A GB 1223952 A GB1223952 A GB 1223952A GB 4095068 A GB4095068 A GB 4095068A GB 4095068 A GB4095068 A GB 4095068A GB 1223952 A GB1223952 A GB 1223952A
Authority
GB
United Kingdom
Prior art keywords
bath
cyanide
silicon
carburising
steels
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
GB4095068A
Inventor
Karl Ulrich Baumgart
Hans Wilfried Troelenberg
Hermann Karl Bernd Hering
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.)
HAERTOL WERK
Original Assignee
HAERTOL WERK
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 HAERTOL WERK filed Critical HAERTOL WERK
Priority to GB4095068A priority Critical patent/GB1223952A/en
Publication of GB1223952A publication Critical patent/GB1223952A/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
    • C23C8/40—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
    • C23C8/44—Carburising
    • C23C8/46—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)
  • Carbon And Carbon Compounds (AREA)

Abstract

1,223,952. Carburizing steel. H€RTOLWERK VEB. Aug.27, 1968, No.40950/68. Heading C7U. Steel is carburized in a cyanide - free bath to which is added elemental carbon, silicon carbide, and elemental silicon or a silicon alloy. The bath may be formed from chlorides and carbonates of the alkali and alkaline earth metals, and silicon carbide, alkali carbonate and silicon or a silicon alloy may be added together to the bath in powder or pressed form-carbon, preferably as flake graphite, may be added to the bath together with, or separately from the other additives. The bath is operated at 750‹ to 1200‹C., preferably 900‹ to 1000‹ C.
GB4095068A 1968-08-27 1968-08-27 Method of carburising steels in cyanide-free fused salt baths Expired GB1223952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4095068A GB1223952A (en) 1968-08-27 1968-08-27 Method of carburising steels in cyanide-free fused salt baths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4095068A GB1223952A (en) 1968-08-27 1968-08-27 Method of carburising steels in cyanide-free fused salt baths

Publications (1)

Publication Number Publication Date
GB1223952A true GB1223952A (en) 1971-03-03

Family

ID=10417405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4095068A Expired GB1223952A (en) 1968-08-27 1968-08-27 Method of carburising steels in cyanide-free fused salt baths

Country Status (1)

Country Link
GB (1) GB1223952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002905A1 (en) * 1981-02-18 1982-09-02 Kerridge David Henry Fused salt bath composition
EP0088526A1 (en) * 1982-02-23 1983-09-14 National Research Development Corporation Fused salt bath composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002905A1 (en) * 1981-02-18 1982-09-02 Kerridge David Henry Fused salt bath composition
EP0088526A1 (en) * 1982-02-23 1983-09-14 National Research Development Corporation Fused salt bath composition

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