EP0192933A3 - Process for heat treating, especially of metallic work pieces, and apparatus therefor - Google Patents

Process for heat treating, especially of metallic work pieces, and apparatus therefor Download PDF

Info

Publication number
EP0192933A3
EP0192933A3 EP86100308A EP86100308A EP0192933A3 EP 0192933 A3 EP0192933 A3 EP 0192933A3 EP 86100308 A EP86100308 A EP 86100308A EP 86100308 A EP86100308 A EP 86100308A EP 0192933 A3 EP0192933 A3 EP 0192933A3
Authority
EP
European Patent Office
Prior art keywords
heat treating
work pieces
atmosphere
apparatus therefor
metallic work
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.)
Withdrawn
Application number
EP86100308A
Other languages
German (de)
French (fr)
Other versions
EP0192933A2 (en
Inventor
Otto Rastelli
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.)
Aichelin GmbH Germany
Original Assignee
Aichelin GmbH Germany
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 Aichelin GmbH Germany filed Critical Aichelin GmbH Germany
Publication of EP0192933A2 publication Critical patent/EP0192933A2/en
Publication of EP0192933A3 publication Critical patent/EP0192933A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • 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
    • 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
    • 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
    • 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
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40—Arrangements of controlling or monitoring devices
    • 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
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • F27B19/04—Combinations of furnaces of kinds not covered by a single preceding main group arranged for associated working
    • 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
    • F27B9/16—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 circular or arcuate path
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences
    • F27D2019/0062—Regulation involving the control of the conveyor movement, e.g. speed or sequences control of the workpiece stay in different zones
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0068—Regulation involving a measured inflow of a particular gas in the enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1539—Metallic articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)

Abstract

Bei einem Verfahren zum Wärmebehandeln von insbe­ sondere metallischen Werkstücken in einer eine entspre­ chende Atmosphäre enthaltenen Ofenkammer (21) wird die Atmosphäre auf die jeweilige Prozeßtemperatur aufgeheizt. Die Werkstücke werden in die Ofenkammer (21) eingegeben und verbleiben dort für eine vorbestimmte Zeit. Gleichzeitig werden die Zustandsgrößen und die Zusammensetzung der Ofenatmosphäre geregelt bzw. gesteuert. In a method for heat treating insbe special metallic workpieces in one furnace chamber (21) containing the atmosphere Atmosphere heated to the respective process temperature. The workpieces are placed in the furnace chamber (21) and stay there for a predetermined time. At the same time the state variables and the composition of the Furnace atmosphere regulated or controlled.

Um quasi gleichzeitig Chargen behandeln zu können, die eine unterschiedliche Verweilzeit erfordern, wird jede Charge nach Ablauf einer für sie spezifischen Verweilzeit in der Ofen­ kammer (21) von den übrigen Chargen unabhängig aus der Ofenkammer entnommen. In order to be able to treat batches almost simultaneously, the each batch will require a different dwell time after a specific dwell time in the oven chamber (21) from the other batches independently from the Oven chamber removed.

EP86100308A 1985-02-22 1986-01-11 Process for heat treating, especially of metallic work pieces, and apparatus therefor Withdrawn EP0192933A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3506131 1985-02-22
DE3506131A DE3506131C1 (en) 1985-02-22 1985-02-22 Process for the heat treatment of in particular metallic workpieces and device for carrying out the process

Publications (2)

Publication Number Publication Date
EP0192933A2 EP0192933A2 (en) 1986-09-03
EP0192933A3 true EP0192933A3 (en) 1988-08-31

Family

ID=6263222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100308A Withdrawn EP0192933A3 (en) 1985-02-22 1986-01-11 Process for heat treating, especially of metallic work pieces, and apparatus therefor

Country Status (6)

Country Link
EP (1) EP0192933A3 (en)
JP (1) JPS61231121A (en)
DE (1) DE3506131C1 (en)
DK (1) DK34286A (en)
NO (1) NO860197L (en)
PL (1) PL258076A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640325C1 (en) * 1986-11-26 1988-02-04 Ipsen Ind Internat Gmbh Device for the heat treatment of metallic workpieces in a carbonizing atmosphere
US4763880A (en) * 1987-04-03 1988-08-16 Holcroft/Loftus Inc. Rotary hearth multi-chamber, multi-purpose furnace system
US5187670A (en) * 1990-11-05 1993-02-16 Caterpillar Inc. Control system for scheduling parts in a heat-treating process
DE4431608C5 (en) * 1994-09-06 2004-02-05 Aichelin Gmbh Method and device for heat treating metallic workpieces
DE19928990C2 (en) * 1999-06-24 2002-04-11 Siemens Ag rotary kiln
DE102012019653A1 (en) 2012-10-08 2014-04-10 Ipsen International Gmbh Gas-tight protective gas-blast industrial furnace, in particular chamber furnace, pusher furnace, rotary hearth furnace or ring hearth furnace
CN112964067A (en) * 2021-02-23 2021-06-15 内蒙古工业大学 Charging equipment for metallurgical furnace
AT524549B1 (en) * 2021-10-15 2022-07-15 Ebner Ind Ofenbau industrial furnace plant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216910B (en) * 1960-03-05 1966-05-18 Erich Menzel Loading and unloading device for rotary hearths for heating billets, splits or similar parts
FR1560499A (en) * 1967-02-15 1969-03-21
JPS5494412A (en) * 1978-01-09 1979-07-26 Sumitomo Metal Ind Ltd Operation control method of continuous heating furnace including rotary furnace
US4288062A (en) * 1979-08-09 1981-09-08 Holcroft Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace
EP0049488A1 (en) * 1980-10-04 1982-04-14 Linde Aktiengesellschaft Method of and apparatus for decarburizing or neutrally annealing metal workpieces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8421677U1 (en) * 1984-07-20 1985-01-03 Ipsen Industries International Gmbh, 4190 Kleve TURNING OVENS FOR HEAT TREATMENT OF METAL WORKPIECES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216910B (en) * 1960-03-05 1966-05-18 Erich Menzel Loading and unloading device for rotary hearths for heating billets, splits or similar parts
FR1560499A (en) * 1967-02-15 1969-03-21
JPS5494412A (en) * 1978-01-09 1979-07-26 Sumitomo Metal Ind Ltd Operation control method of continuous heating furnace including rotary furnace
US4288062A (en) * 1979-08-09 1981-09-08 Holcroft Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace
EP0049488A1 (en) * 1980-10-04 1982-04-14 Linde Aktiengesellschaft Method of and apparatus for decarburizing or neutrally annealing metal workpieces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 3, Nr. 114 (C-59), 21. September 1979, Seite 93 C 59; & JP-A-54 94 412 (SUMITOMO KINZOKU KOGYO K.K.) 26-07-1979 *

Also Published As

Publication number Publication date
NO860197L (en) 1986-08-25
PL258076A1 (en) 1986-12-16
DK34286A (en) 1986-08-23
JPH0465889B2 (en) 1992-10-21
DK34286D0 (en) 1986-01-22
EP0192933A2 (en) 1986-09-03
DE3506131C1 (en) 1986-05-22
JPS61231121A (en) 1986-10-15

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Inventor name: RASTELLI, OTTO