GB114446A - Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles. - Google Patents

Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles.

Info

Publication number
GB114446A
GB114446A GB138817A GB138817A GB114446A GB 114446 A GB114446 A GB 114446A GB 138817 A GB138817 A GB 138817A GB 138817 A GB138817 A GB 138817A GB 114446 A GB114446 A GB 114446A
Authority
GB
United Kingdom
Prior art keywords
case
hardening
iron
gas
carburization
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
GB138817A
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.)
BRITISH CARBONIZING Co LT
Original Assignee
BRITISH CARBONIZING Co LT
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 BRITISH CARBONIZING Co LT filed Critical BRITISH CARBONIZING Co LT
Priority to GB138817A priority Critical patent/GB114446A/en
Publication of GB114446A publication Critical patent/GB114446A/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

Abstract

114,446. Fennell, W., and British Carbonizing Co. Jan. 27, 1917, Case-hardening. - Iron and steel articles are case-hardened by means of carburizing material in the presence of gas or vapour under substantial pressure, which may be of the order of 15 lb. per square inch, generated within the case-hardening chamber. The gas or vapour may be such as to assist the case-hardening operation, and may for example be coal gas or carbon monoxide evolved from coal or from carbon and metallic oxides in the carburizing material. The operation may be carried out in a rotary muffle. On completion of the process, the articles are withdrawn into a cooling liquid.
GB138817A 1917-01-27 1917-01-27 Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles. Expired GB114446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB138817A GB114446A (en) 1917-01-27 1917-01-27 Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB138817A GB114446A (en) 1917-01-27 1917-01-27 Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles.

Publications (1)

Publication Number Publication Date
GB114446A true GB114446A (en) 1918-03-27

Family

ID=32243196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB138817A Expired GB114446A (en) 1917-01-27 1917-01-27 Improvements in or relating to the Carburization and Case-hardening of Iron and Steel Articles.

Country Status (1)

Country Link
GB (1) GB114446A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115135C1 (en) * 1991-05-08 1992-02-27 Degussa Ag, 6000 Frankfurt, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115135C1 (en) * 1991-05-08 1992-02-27 Degussa Ag, 6000 Frankfurt, De

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