GB475359A - Improvements in or relating to process for the cementation of steel and alloy steels - Google Patents

Improvements in or relating to process for the cementation of steel and alloy steels

Info

Publication number
GB475359A
GB475359A GB13718/36A GB1371836A GB475359A GB 475359 A GB475359 A GB 475359A GB 13718/36 A GB13718/36 A GB 13718/36A GB 1371836 A GB1371836 A GB 1371836A GB 475359 A GB475359 A GB 475359A
Authority
GB
United Kingdom
Prior art keywords
steel
cementation
oil
relating
alloy 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
GB13718/36A
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 GB475359A publication Critical patent/GB475359A/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
    • C23C8/60—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 solids, e.g. powders, pastes
    • C23C8/62—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 solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—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

In the cementation of steel and alloy steels, oil is mixed with a porous substance, such as kieselguhr, capable of sucking up the oil and serving as a binding and retaining means to form a paste-like mass into which the steels &c., previously heated up to the cementation temperature, is immersed to harden it. The steel &c. is left in the mass for a few minutes and then may be heated up to 720-900 DEG C., and then quenched. Oils containing nitrogen such as aniline oil or ortho-toluidine are preferably employed. An alloy steel containing 0,1-0,5 per cent of carbon, 4 of nickel, 0,3 of chromium, 0,5 of manganese and 0,35 of silicon is referred to.
GB13718/36A 1935-05-28 1936-05-14 Improvements in or relating to process for the cementation of steel and alloy steels Expired GB475359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475359X 1935-05-28

Publications (1)

Publication Number Publication Date
GB475359A true GB475359A (en) 1937-11-15

Family

ID=6541833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13718/36A Expired GB475359A (en) 1935-05-28 1936-05-14 Improvements in or relating to process for the cementation of steel and alloy steels

Country Status (1)

Country Link
GB (1) GB475359A (en)

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