FR2356104A1 - Procede et dispositif pour faire circuler un gaz de traitement chauffe - Google Patents

Procede et dispositif pour faire circuler un gaz de traitement chauffe

Info

Publication number
FR2356104A1
FR2356104A1 FR7619107A FR7619107A FR2356104A1 FR 2356104 A1 FR2356104 A1 FR 2356104A1 FR 7619107 A FR7619107 A FR 7619107A FR 7619107 A FR7619107 A FR 7619107A FR 2356104 A1 FR2356104 A1 FR 2356104A1
Authority
FR
France
Prior art keywords
chamber
heat treating
treating furnace
pulsate
gas
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.)
Granted
Application number
FR7619107A
Other languages
English (en)
Other versions
FR2356104B1 (fr
Inventor
Ronald D Rogers
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.)
Ikon Office Solutions Inc
Original Assignee
Ikon Office Solutions Inc
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 Ikon Office Solutions Inc filed Critical Ikon Office Solutions Inc
Priority to FR7619107A priority Critical patent/FR2356104A1/fr
Publication of FR2356104A1 publication Critical patent/FR2356104A1/fr
Application granted granted Critical
Publication of FR2356104B1 publication Critical patent/FR2356104B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Furnace Details (AREA)

Abstract

La présente invention concerne un four de traitement par la chaleur et un procédé de traitement thermochimique d'une charge métallique disposée dans l'enceinte d'un four chauffé en présence d'un gaz. Ce four comprend des moyens pour donner au gaz dans l'enceinte un mouvement de va-et-vient, alors qu'il s'écoule de ladite entrée jusqu'à ladite sortie, ce qui fait que la circulation de gaz à l'intérieur de l'enceinte est une circulation oscillatoire et que le trajet du gaz au voisinage de la pièce charge est oscillatoire. Application aux traitements par un gaz chaud tels que carburation, décarburation, réduction et nitruration.
FR7619107A 1976-06-23 1976-06-23 Procede et dispositif pour faire circuler un gaz de traitement chauffe Granted FR2356104A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7619107A FR2356104A1 (fr) 1976-06-23 1976-06-23 Procede et dispositif pour faire circuler un gaz de traitement chauffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619107A FR2356104A1 (fr) 1976-06-23 1976-06-23 Procede et dispositif pour faire circuler un gaz de traitement chauffe

Publications (2)

Publication Number Publication Date
FR2356104A1 true FR2356104A1 (fr) 1978-01-20
FR2356104B1 FR2356104B1 (fr) 1982-05-14

Family

ID=9174778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7619107A Granted FR2356104A1 (fr) 1976-06-23 1976-06-23 Procede et dispositif pour faire circuler un gaz de traitement chauffe

Country Status (1)

Country Link
FR (1) FR2356104A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438688A1 (fr) * 1978-10-14 1980-05-09 Ipsen Ind Int Gmbh Four industriel de traitement thermique de pieces metalliques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835931A (fr) * 1938-03-30 1939-01-05 Procédé pour la cémentation gazeuse de pièces en acier
FR1164640A (fr) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Procédé pour la cémentation, la nitruration et la carbonitruration de pièces en acier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835931A (fr) * 1938-03-30 1939-01-05 Procédé pour la cémentation gazeuse de pièces en acier
FR1164640A (fr) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Procédé pour la cémentation, la nitruration et la carbonitruration de pièces en acier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438688A1 (fr) * 1978-10-14 1980-05-09 Ipsen Ind Int Gmbh Four industriel de traitement thermique de pieces metalliques

Also Published As

Publication number Publication date
FR2356104B1 (fr) 1982-05-14

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse