GB783702A - Method for treating the inside wall of a hollow body - Google Patents

Method for treating the inside wall of a hollow body

Info

Publication number
GB783702A
GB783702A GB508654A GB508654A GB783702A GB 783702 A GB783702 A GB 783702A GB 508654 A GB508654 A GB 508654A GB 508654 A GB508654 A GB 508654A GB 783702 A GB783702 A GB 783702A
Authority
GB
United Kingdom
Prior art keywords
gas
furnace
treating
inside wall
discharged
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
GB508654A
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
Priority to GB508654A priority Critical patent/GB783702A/en
Publication of GB783702A publication Critical patent/GB783702A/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

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

783,702. Cementation. POTTS, F. C., (Eidg. Waffenfabrik). Feb. 22, 1954, No. 5086/54. Class 72 [Also in Group XII] In a method for treating in a furnace the inside wall of one or several hollow bodies at a time by means of an active gas which is led through the body, the gas after having traversed the body at working temperature is discharged into the furnace chamber where it acts as a protective atmosphere. As shown, for nitriding firearm barrels, fresh ammonia gas is supplied, under pressure, through conduit 8 and via distributing pot 12 to barrels 21 whence it is discharged into furnace chamber 9 and finally escapes through outlet conduit 24. The fresh gas is heated to working temperature in coil 16, or outside the furnace. Carburizing with carbon monoxide is also referred to.
GB508654A 1954-02-22 1954-02-22 Method for treating the inside wall of a hollow body Expired GB783702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB508654A GB783702A (en) 1954-02-22 1954-02-22 Method for treating the inside wall of a hollow body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB508654A GB783702A (en) 1954-02-22 1954-02-22 Method for treating the inside wall of a hollow body

Publications (1)

Publication Number Publication Date
GB783702A true GB783702A (en) 1957-09-25

Family

ID=9789502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB508654A Expired GB783702A (en) 1954-02-22 1954-02-22 Method for treating the inside wall of a hollow body

Country Status (1)

Country Link
GB (1) GB783702A (en)

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