DE832773C - Bonnet furnace - Google Patents

Bonnet furnace

Info

Publication number
DE832773C
DE832773C DEO1336A DEO0001336A DE832773C DE 832773 C DE832773 C DE 832773C DE O1336 A DEO1336 A DE O1336A DE O0001336 A DEO0001336 A DE O0001336A DE 832773 C DE832773 C DE 832773C
Authority
DE
Germany
Prior art keywords
furnace
bonnet
goods
base
stacked
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
DEO1336A
Other languages
German (de)
Inventor
Heinrich Bangert
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.)
Ofag Ofenbau A G
Original Assignee
Ofag Ofenbau A G
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 Ofag Ofenbau A G filed Critical Ofag Ofenbau A G
Priority to DEO1336A priority Critical patent/DE832773C/en
Application granted granted Critical
Publication of DE832773C publication Critical patent/DE832773C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/663Bell-type furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Tunnel Furnaces (AREA)

Description

Zur Wärmebehandlung von Stapelgut, wie 111;°chen, sind Ilaubeirglühöfen in Anwendung, bei %\-eichen das Glühgut unter einer Haube, die mit feuerfestem Material ausgekleidet ist, aufeinander-11,-schichtet ist. Die Beheizung erfolgt mittelbar ,°ntt@eder durch Gasbrenner oder Strahlrohre, \veIc he in der abhebbaren Haube angeordnet sind. Das Glühgut ist innerhalb des Ofens zusätzlich tnit einer Schutzhaube aus Blech abgedeckt. Gegen den Zutritt von Außenluft sorgen besondere Dichttiligen. Insbesondere hei Ofen von großen Al)-lnessIlligen hat dieseN\'ärmelxllatl<llutlg den großen Nachteil, <laß die inneren Teile und besonders die zutiefst liegenden erst sehr spät die gewünschte Glühtemperatur annehmen. Dies hat zur Folge, (1a1.) die Ränder unnötig und manchmal sogar schädlich lange Zeit auf der Glühtemperatur gehalten werden und daher die im Beispiel geliallliten Bleche unterschiedlicheEigenschaften aufdie ihre Verwendungsfähigkeit in Frage stellen und oft eine Nachbehandlung erfordern. Die I?rfindung beseitigt diese Nachteile und ge-@@ ährleistet an allen Stellen des Stapels eine gleichmäßige Wärmebehandlung. Gemäß der Erfindung Wird dies dadurch erreicht, daß im Auflagesockel desGlühgutes eine zusätzliche regelbare elektrische Heizeinrichtung angeordnet ist, welche die Er- \\-ärintitig des unteren Teils des Stapels in dem erforderlichen .laße g:stattet. Das fertige Gut hat jetzt überall gleiche Eigenschaften und eine achlreliandlullg ist x-olll;ommen unnötig. I11 der Zeichnung ist eine zN#,-eckmäßige Aus- führungsform der Erfindung schematisch darge- stellt. Auf dem Sockel t des Ofens sind die Bleche a aufgestapelt utld mit der Schutzhaube 3 abgedeckt, welche auf ihrer Auflage gegen den Zutritt von Luft durch @atid allgedichtet ist. Auf der Sohle 4 des Ofens k:lnilnt (lie mit feuerfestem .Material ausgekleidete I l<itilx# ; zur Auflage. Zur Abdichtung diern:ll gilt- kinllen h, die mit Sand ge- füllt sitld. In den @eiten@@<inden der Ilaul)e 5 be- finden sich die (iasl)r.ullncr7 Lind die Strahlrohre H. Im Sockel t ist dic- elektrische Zusatzheizung g elllgf llattt. Ilaubeir annealing furnaces are used for the heat treatment of stacked goods, such as 111; ° chen, in the case of% \ - calibration the annealed goods are layered on top of one another under a hood that is lined with refractory material. The heating takes place indirectly, either through gas burners or radiant tubes, some of which are arranged in the removable hood. The annealing material is additionally covered inside the furnace with a protective hood made of sheet metal. Special sealing devices prevent the ingress of outside air. Particularly in the furnace of large Al) elements, this sleeve type has the great disadvantage that the inner parts, and especially the deepest parts, do not reach the desired annealing temperature until very late. This has the consequence (1a1.) That the edges are unnecessarily and sometimes even detrimentally kept at the annealing temperature for a long time and therefore the sheet metal sheets in the example have different properties which call their usability into question and often require post-treatment. The invention eliminates these disadvantages and ensures uniform heat treatment at all points on the stack. According to the invention, this is achieved in that an additional adjustable electrical Heating device is arranged, which the \\ - arintitig of the lower part of the stack in the required .laße g: equips. The finished good now has the same properties and one everywhere achlreliandlullg is definitely unnecessary. I11 of the drawing is a zN #, - angular shape embodiment of the invention shown schematically represents. On the base t of the stove are the Sheets a stacked up with the protective cover 3 covered which on their edition against the Access of air is sealed by @atid. on the sole 4 of the furnace k: lnilnt (lie with refractory .Material lined I l <itilx #; to the edition. To the Sealing diern: ll applies- kinllen h, which are covered with sand fills sitld. In the @pages @@ <inden der Ilaul) e 5 the (iasl) r.ullncr7 and the radiant tubes H. In the base t there is the electrical auxiliary heating g elllgf llattt.

Claims (1)

PATl:NTANst1HUotr: Etaulrenglüliofeti finit Gasbeheizung für Bleche oder anderes Stapelgut, dadurch gekennzeichnet, daß zur gleichmäßigen Erwärmung des aufgestapelten Gutes eine elektrische Zusatzheizung (9) iln Sockel (1) des Ofens angeordnet ist.PATl: NTANst1HUotr: Etaulrenglüliofeti finit gas heating for metal sheets or other stackable goods, characterized in that for uniform heating of the stacked goods an additional electrical heater (9) in the base (1) of the furnace is arranged.
DEO1336A 1950-12-12 1950-12-12 Bonnet furnace Expired DE832773C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO1336A DE832773C (en) 1950-12-12 1950-12-12 Bonnet furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO1336A DE832773C (en) 1950-12-12 1950-12-12 Bonnet furnace

Publications (1)

Publication Number Publication Date
DE832773C true DE832773C (en) 1952-02-28

Family

ID=7349508

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO1336A Expired DE832773C (en) 1950-12-12 1950-12-12 Bonnet furnace

Country Status (1)

Country Link
DE (1) DE832773C (en)

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