GB359483A - Process for the cementation and hardening of iron, steel and alloys containing the same - Google Patents

Process for the cementation and hardening of iron, steel and alloys containing the same

Info

Publication number
GB359483A
GB359483A GB21671/30A GB2167130A GB359483A GB 359483 A GB359483 A GB 359483A GB 21671/30 A GB21671/30 A GB 21671/30A GB 2167130 A GB2167130 A GB 2167130A GB 359483 A GB359483 A GB 359483A
Authority
GB
United Kingdom
Prior art keywords
per cent
bath
iron
steel
cementation
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
GB21671/30A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB359483A publication Critical patent/GB359483A/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
    • 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)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Articles of iron, steel, or alloys with other metals such as nickel, chromium, vanadium, molybdenum and tungsten are treated in baths containing barium cyanide in admixture with not less than 40 per cent, and preferably more than 50 per cent, of barium chloride at a temperature of 850-950 DEG C. The bath may be prepared by adding up to 10 per cent, preferably 1-3 per cent, of alkali cyanide to barium chloride or to mixtures containing not less than 40 per cent of barium chloride. Other substances which lower the melting point of the bath such as sodium or potassium chloride and a small proportion of carbon 0,1-1,0 per cent may be added to the bath. To prevent access of air a layer of graphite or charcoal may be provided on the surface of the bath.
GB21671/30A 1929-07-22 1930-07-17 Process for the cementation and hardening of iron, steel and alloys containing the same Expired GB359483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE359483X 1929-07-22

Publications (1)

Publication Number Publication Date
GB359483A true GB359483A (en) 1931-10-19

Family

ID=6291197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21671/30A Expired GB359483A (en) 1929-07-22 1930-07-17 Process for the cementation and hardening of iron, steel and alloys containing the same

Country Status (1)

Country Link
GB (1) GB359483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113913820A (en) * 2021-11-02 2022-01-11 左全虎 Corrosion-resistant metal material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113913820A (en) * 2021-11-02 2022-01-11 左全虎 Corrosion-resistant metal material
CN113913820B (en) * 2021-11-02 2023-12-05 浦江展莱工艺品有限公司 Corrosion-resistant metal material

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