ATE139330T1 - METHOD AND CONTINUOUS FURNACE FOR HEAT TREATING BATCHES OF WORKPIECES - Google Patents

METHOD AND CONTINUOUS FURNACE FOR HEAT TREATING BATCHES OF WORKPIECES

Info

Publication number
ATE139330T1
ATE139330T1 AT92101498T AT92101498T ATE139330T1 AT E139330 T1 ATE139330 T1 AT E139330T1 AT 92101498 T AT92101498 T AT 92101498T AT 92101498 T AT92101498 T AT 92101498T AT E139330 T1 ATE139330 T1 AT E139330T1
Authority
AT
Austria
Prior art keywords
furnace
floor
throughflow
workpieces
heat treating
Prior art date
Application number
AT92101498T
Other languages
German (de)
Inventor
Richard Cochius
Hans Helmut Dr-Ing Borggrefe
Original Assignee
Loi Thermprocess Gmbh
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 Loi Thermprocess Gmbh filed Critical Loi Thermprocess Gmbh
Application granted granted Critical
Publication of ATE139330T1 publication Critical patent/ATE139330T1/en

Links

Classifications

    • 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
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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
    • 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
    • F27B9/201—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 walking beam furnace
    • F27B9/202—Conveyor mechanisms therefor

Abstract

The workpiece charges are transported stepwise through the throughflow furnace lying on movable floor elements (12), and at each step they are individually lifted from below, beginning at the outlet side end (9) of the throughflow furnace, and displaced by one step. In this manner, even extremely heavy workpiece charges, such as coils, can be heat-treated in a throughflow furnace. Transport is effected by a transfer machine (13) which can travel in the longitudinal direction of the furnace, beneath the furnace floor (14) in a space (15) under the furnace, and which can engage through the furnace floor (14) with a lifting device (18). For this purpose the furnace floor has two apertures (20,21) running in the longitudinal direction of the furnace. The movable floor elements (12) form a closed upper floor which covers the apertures (20,21) of the furnace floor. The space (15) under the furnace is thus thermally insulated. <IMAGE>
AT92101498T 1991-02-06 1992-01-30 METHOD AND CONTINUOUS FURNACE FOR HEAT TREATING BATCHES OF WORKPIECES ATE139330T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4103454A DE4103454C2 (en) 1991-02-06 1991-02-06 Process and continuous furnace for the heat treatment of workpiece batches

Publications (1)

Publication Number Publication Date
ATE139330T1 true ATE139330T1 (en) 1996-06-15

Family

ID=6424422

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92101498T ATE139330T1 (en) 1991-02-06 1992-01-30 METHOD AND CONTINUOUS FURNACE FOR HEAT TREATING BATCHES OF WORKPIECES

Country Status (4)

Country Link
EP (1) EP0499850B1 (en)
AT (1) ATE139330T1 (en)
DE (2) DE4103454C2 (en)
ES (1) ES2089254T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632448A1 (en) * 1996-08-05 1998-02-12 Mannesmann Ag Process and plant for producing strip from low-carbon and ultra-low-carbon steels
DE102005056599B3 (en) * 2005-11-25 2007-05-24 Otto Junker Gmbh Furnace arrangement for heat-treating metal goods comprises pre-chamber doors that can be positioned so that metal goods can be fed continuously through opening in door

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996293A (en) * 1958-08-27 1961-08-15 Fallon John Furnaces for annealing and heat treatment of metals and other materials
DE1200851B (en) * 1961-07-21 1965-09-16 Brockmann & Bundt Ind Ofenbau Conveyor system for pacemaker ovens
DE1221260B (en) * 1965-04-23 1966-07-21 Universale Ind Ofenbau Gmbh Lifting conveyor furnace with underheating
FR2048101A5 (en) * 1969-06-05 1971-03-19 Issard Pierre Periodically advancing workpieces in pro- - gressive heating furnaces
DE2831251C2 (en) * 1978-07-15 1986-10-16 Smit Ovens Nijmegen B.V., Nijmegen Lifting plate furnace
DE3021275A1 (en) * 1980-06-06 1982-04-22 Wistra GmbH Thermoprozesstechnik, 4000 Düsseldorf LIFTING BAR OVEN WITH ADAPTERS
DE3030944C2 (en) * 1980-08-16 1985-09-19 Linco Gmbh, 5205 St Augustin Fireproof thermal insulation panel
DE3105064C2 (en) * 1981-02-12 1983-07-07 Thyssen Grillo Funke GmbH, 4650 Gelsenkirchen Process for the heat treatment of metal strip wound into coils
DE3208132C2 (en) * 1982-03-06 1985-02-14 Didier Engineering Gmbh, 4300 Essen Pusher oven
US4586898A (en) * 1984-12-14 1986-05-06 Btu Engineering Corporation Multi-zone furnace system
JPS61285381A (en) * 1985-06-12 1986-12-16 大同特殊鋼株式会社 Vacuum furnace with partial section heating chamber
JPH01252886A (en) * 1988-03-31 1989-10-09 Central Glass Co Ltd Heat working furnace and heat treatment effected thereby

Also Published As

Publication number Publication date
EP0499850A1 (en) 1992-08-26
EP0499850B1 (en) 1996-06-12
ES2089254T3 (en) 1996-10-01
DE4103454C2 (en) 1993-10-21
DE59206515D1 (en) 1996-07-18
DE4103454A1 (en) 1992-08-13

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee