GB480166A - Improvements in the gaseous cementation of steel - Google Patents

Improvements in the gaseous cementation of steel

Info

Publication number
GB480166A
GB480166A GB2203136A GB2203136A GB480166A GB 480166 A GB480166 A GB 480166A GB 2203136 A GB2203136 A GB 2203136A GB 2203136 A GB2203136 A GB 2203136A GB 480166 A GB480166 A GB 480166A
Authority
GB
United Kingdom
Prior art keywords
gas
cementation
steel
hydrogen
gaseous
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
GB2203136A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB480166A publication Critical patent/GB480166A/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

Abstract

Gas for the cementation of steel is produced by removing substantially the whole of the carbon dioxide and water vapour from producer gas, water gas or other gas containing carbon monoxide and hydrogen, adding to the gas so produced olefinic products, and finally passing the mixture over a suitable catalyst, such as nickel and at a temperature, e.g. 150-200 DEG C., such that the olefines are transformed into saturated hydrocarbons and low enough to avoid reaction between the carbon monoxide and hydrogen. Specification 480,103 is referred to.
GB2203136A 1936-07-10 1936-08-10 Improvements in the gaseous cementation of steel Expired GB480166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808083T 1936-07-10

Publications (1)

Publication Number Publication Date
GB480166A true GB480166A (en) 1938-02-10

Family

ID=9252765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2203136A Expired GB480166A (en) 1936-07-10 1936-08-10 Improvements in the gaseous cementation of steel

Country Status (2)

Country Link
FR (1) FR808083A (en)
GB (1) GB480166A (en)

Also Published As

Publication number Publication date
FR808083A (en) 1937-01-28

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