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 PROCESSInfo
- 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
Links
- 238000000034 method Methods 0.000 title 2
- 238000009792 diffusion process Methods 0.000 title 1
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)
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)
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)
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 |
-
1979
- 1979-01-12 CH CH31479A patent/CH627262A5/en not_active IP Right Cessation
- 1979-12-18 DE DE19792950967 patent/DE2950967A1/en active Granted
- 1979-12-19 FR FR7931166A patent/FR2446457B1/en not_active Expired
-
1980
- 1980-01-08 IT IT19089/80A patent/IT1130207B/en active
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 |