GB813192A - Apparatus for carburising in a closed cycle in the gaseous phase - Google Patents

Apparatus for carburising in a closed cycle in the gaseous phase

Info

Publication number
GB813192A
GB813192A GB24273/56A GB2427356A GB813192A GB 813192 A GB813192 A GB 813192A GB 24273/56 A GB24273/56 A GB 24273/56A GB 2427356 A GB2427356 A GB 2427356A GB 813192 A GB813192 A GB 813192A
Authority
GB
United Kingdom
Prior art keywords
container
work
closed
fan
valve
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
GB24273/56A
Inventor
Georges Membrez
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.)
Four Electr Delemont SA Du
Original Assignee
Four Electr Delemont SA Du
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
Priority to CH322729D priority Critical patent/CH322729A/en
Priority to FR1155414D priority patent/FR1155414A/en
Application filed by Four Electr Delemont SA Du filed Critical Four Electr Delemont SA Du
Priority to GB24273/56A priority patent/GB813192A/en
Publication of GB813192A publication Critical patent/GB813192A/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
    • 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
    • C23C8/28—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 more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding 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

813,192. Cementation. FOUR ELECTRIQUE DELEMONT S.A. DU. Aug. 8, 1956. No. 24273/56. Class 72 [Also in Group XII] Apparatus for carburizing metal articles in a closed circuit in the gaseous phase comprises a closed container 4 disposed in a furnace 1, a sleeve 5 in said container having a perforated base and a cover 7 carrying the work 11, a centrifugal fan 18, and a mass of activated carbon 27. In operation, the container 4 is evacuated by a pump 25, valve 26 is closed, and valve 24 opened to allow air to pass though a drier 23 into the container, valve 22 being then closed. The fan then continuously circulates the enclosed air around the sleeve 5, over the activated carbon 22 to produce CO, up over the work and back to the fan through a hole 8 in the cover. 7. The CO carburizes the work producing CO 2 which reacts with the activated carbon to produce CO again. Ammonia may be introduced into the container for simultaneous nitriding of the work. In a modification, Fig. 2 (not shown), the fan is disposed below the carbon mass.
GB24273/56A 1954-11-18 1956-08-08 Apparatus for carburising in a closed cycle in the gaseous phase Expired GB813192A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH322729D CH322729A (en) 1954-11-18 1954-11-18 Closed cycle gas carburizing process and installation for implementing the process
FR1155414D FR1155414A (en) 1954-11-18 1956-08-06 Closed cycle gas carburizing process and installation for its implementation
GB24273/56A GB813192A (en) 1954-11-18 1956-08-08 Apparatus for carburising in a closed cycle in the gaseous phase

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH322729T 1954-11-18
FR1155414T 1956-08-06
GB24273/56A GB813192A (en) 1954-11-18 1956-08-08 Apparatus for carburising in a closed cycle in the gaseous phase

Publications (1)

Publication Number Publication Date
GB813192A true GB813192A (en) 1959-05-13

Family

ID=41591800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24273/56A Expired GB813192A (en) 1954-11-18 1956-08-08 Apparatus for carburising in a closed cycle in the gaseous phase

Country Status (3)

Country Link
CH (1) CH322729A (en)
FR (1) FR1155414A (en)
GB (1) GB813192A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210316263A1 (en) * 2018-08-09 2021-10-14 Greenbone Ortho S.P.A. System for chemical transformation of 3d state materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210316263A1 (en) * 2018-08-09 2021-10-14 Greenbone Ortho S.P.A. System for chemical transformation of 3d state materials

Also Published As

Publication number Publication date
FR1155414A (en) 1958-04-28
CH322729A (en) 1957-06-30

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