FR2446457B1 - CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS - Google Patents

CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS

Info

Publication number
FR2446457B1
FR2446457B1 FR7931166A FR7931166A FR2446457B1 FR 2446457 B1 FR2446457 B1 FR 2446457B1 FR 7931166 A FR7931166 A FR 7931166A FR 7931166 A FR7931166 A FR 7931166A FR 2446457 B1 FR2446457 B1 FR 2446457B1
Authority
FR
France
Prior art keywords
moufle
diffusion
furnace
implementing
continuous processing
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
FR7931166A
Other languages
French (fr)
Other versions
FR2446457A1 (en
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.)
DELEMONT SA
Original Assignee
DELEMONT SA
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 DELEMONT SA filed Critical DELEMONT SA
Publication of FR2446457A1 publication Critical patent/FR2446457A1/en
Application granted granted Critical
Publication of FR2446457B1 publication Critical patent/FR2446457B1/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
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0043—Muffle furnaces; Retort furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/08—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated through chamber walls
    • F27B9/082—Muffle furnaces
    • F27B9/084—Muffle furnaces the muffle being fixed and in a single piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2476—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by air cushion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
FR7931166A 1979-01-12 1979-12-19 CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS Expired FR2446457B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH31479A CH627262A5 (en) 1979-01-12 1979-01-12 Method of continuous treatment by diffusion of metal articles, and muffle furnace for implementing the method

Publications (2)

Publication Number Publication Date
FR2446457A1 FR2446457A1 (en) 1980-08-08
FR2446457B1 true FR2446457B1 (en) 1987-08-28

Family

ID=4184178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931166A Expired FR2446457B1 (en) 1979-01-12 1979-12-19 CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS

Country Status (4)

Country Link
CH (1) CH627262A5 (en)
DE (1) DE2950967A1 (en)
FR (1) FR2446457B1 (en)
IT (1) IT1130207B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933423C2 (en) * 1989-10-06 1994-12-22 Nokia Deutschland Gmbh Device for heat treatment, in particular for LCD substrate plates
DE4112772A1 (en) * 1991-04-19 1992-10-22 Loi Ind Ofenanlagen Treatment furnace for components - with valves between flow channel and furnace controlling amt. of gas into certain areas of furnace
DE10348811A1 (en) * 2003-10-21 2005-06-02 Degussa Ag muffle furnace

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR442842A (en) * 1912-04-23 1912-09-10 Marcel Demongeot Heated bogie hearth oven
US3615082A (en) * 1969-09-02 1971-10-26 Btu Eng Corp Furnace muffle
LU65915A1 (en) * 1972-08-17 1974-02-21

Also Published As

Publication number Publication date
IT1130207B (en) 1986-06-11
FR2446457A1 (en) 1980-08-08
IT8019089A0 (en) 1980-01-08
DE2950967A1 (en) 1980-07-24
DE2950967C2 (en) 1987-06-04
CH627262A5 (en) 1981-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse