DE917198C - Device for all-round inductive heating of closed hollow cylinders - Google Patents

Device for all-round inductive heating of closed hollow cylinders

Info

Publication number
DE917198C
DE917198C DEA8171D DEA0008171D DE917198C DE 917198 C DE917198 C DE 917198C DE A8171 D DEA8171 D DE A8171D DE A0008171 D DEA0008171 D DE A0008171D DE 917198 C DE917198 C DE 917198C
Authority
DE
Germany
Prior art keywords
heating
hollow cylinders
inductive heating
closed hollow
jacket
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
DEA8171D
Other languages
German (de)
Inventor
Dr-Ing Karl Schoenbacher
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA8171D priority Critical patent/DE917198C/en
Application granted granted Critical
Publication of DE917198C publication Critical patent/DE917198C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating

Description

Die a11seitige induktive Aufheizung von geschlossenen Hohlzylindern bereitet nahezu unüberwindliche Schwierigkeiten, wenn die Erwärmung gleichzeitig erfolgen soll, da, in diesem Falle bewegliche Spulenteile angewendet werden müßten, was zu mancherlei. Komplikationen führt. Sind außerdem die Wandstärken des Zylindermantels und der Stirnseiten verschieden, so ist die richtige Energieverteilung eine sehr schwierige Aufgabe.The outside inductive heating of closed hollow cylinders causes almost insurmountable difficulties when warming at the same time should be done, since, in this case, movable coil parts would have to be used, what a lot. Complications. Are also the wall thicknesses of the cylinder jacket and the end faces different, the correct distribution of energy is very important difficult task.

Nun ist es beispielsweise bei Anlaßvorgängen oder beim Ausglühen ähnlicher Teile belanglos, wenn. dlie Aufheizung des Mantels und der Deckflächen nacheinander geschieht. Erfindungsgemäß wird. daher der Zylindermantel vorerst in einer normalen Zylinderspule auf die gewünschte Z"empe@ratur gebracht und dann erst, z. B. durch planparallele Spulen, die Deckseiten. Die erfindungsgemäße Aufteilung der Glühprozesse ,gestattet in einfachster Weise einen Fließbetricb in der Fertigung, besonders bei vorschubweiser Glühung, wie dies in Füg. i beispielsweise angedeutet ist. Durch den zylindrischen Induktor i, bei dem ein keiner Weise auf die Länge der Glühkörper Rücksicht zu nehmen ist; wie dies bei Einzelbehandlung der Stücke der Fall wäre, werden die Stücke eng anein@andergerei,ht durch einen. Vorschub 3 hindurchgeschoben. Nach erfolgter Aufheizung des Mantels werden die Stücke mit einem am zweckmäßigsten rechtwinklig angeordneten zweiten Vorschub q. weiterbewegt durch den Induktor 2, der die Stirnseiten beheizt. Dieser Induktor 2. kann. beispielsweise in ähnlicher geeigneter Weise ausgeführt werden, wie die: induktiven Heizleitungen für die Härtung von Panzerplatten, also bifil.ar mit dazwischen gepackten Eisenblechen, oder aber .die Heizleitungen umfassen die Zylinderstücke über Mantel und Deckfläche, wobei zur Verhinderung einer weiteren Herzung des Mantels die Leiter hier stark verbreitert werden. Sollten die Stücke nach Beendigung des Erwärmungsvorganges ziemlich gleichmäßig durchgewärmt sein, dann ist sogar eine nachträgliche leichte Zusatzheizung der Mantelflächen nicht unerwünscht.It is more similar, for example, for starting processes or for annealing Share irrelevant if. dlie heating of the jacket and the top surfaces one after the other happens. According to the invention. hence the cylinder jacket for the time being in a normal Cylinder coil brought to the desired temperature and only then, e.g. through plane-parallel coils, the cover sides. The division of the annealing processes according to the invention , allows in the simplest way a flow operation in production, especially in advance annealing, as shown in Füg. i is indicated for example. By the cylindrical inductor i, in which one doesn’t affect the length of the incandescent body Consideration is to be taken; as would be the case with individual treatment of the pieces, if the pieces get close to one another, ht by one. Feed 3 pushed through. After the jacket has been heated up, the pieces are most convenient with one at right angles arranged second feed q. moved on by inductor 2, which heats the front sides. This inductor 2. can. for example in a similar way be carried out in a suitable manner, such as the: inductive heating cables for hardening from armor plates, i.e. bifil.ar with iron sheets packed in between, or else .The heating lines encompass the cylinder pieces over the jacket and top surface, with the ladder is greatly widened here to prevent further corrugation of the jacket will. The pieces should be fairly even after the heating process is complete be warmed through, then there is even a subsequent slight additional heating of the jacket surfaces not undesirable.

Zur Aufrechterhaltung eines Fließbetriebes ist die Bedingung, daß die beiden. Vorschübe gleiche Stückzahlen liefern, einzuhalten. Die Leistungen der Induktoren i und 2 sind demgemäß ab:zustimmen. Soll die .gleichmäßige Durchwärmung der Hohlkörper angestrebt werden, dann: kann erfindungsgemäß der Heizvorgang in mehrere Stufen unterteilt werden, etwa Heizvorgang i, Heizvorgang 2..., Heizvorgang i, Heizvorgang 2 usw. Nach diesem Heizprogramm ergibt sich je nach der Vielstufigkeit des Verfahrens eine mehr oder minder genaue Gleichzeitigkeit des Heizprozesses für die Mantel- und Stirnflächen.To maintain continuous operation, the condition is that the two. Deliver feeds of the same number of pieces, to be adhered to. The services of the Inductors i and 2 are accordingly from: agree. Should the .even heating the hollow body are sought, then: according to the invention, the heating process in several stages can be subdivided, such as heating process i, heating process 2 ..., heating process i, heating process 2 etc. According to this heating program, depending on the number of stages of the process a more or less precise simultaneity of the heating process for the mantle and end faces.

Claims (2)

PATENTANSPRÜCHE: i. Vorrichtung zur allseitigen induktiven Aufheizung von geschlossenen, Hohlzylindern, gekennzeichnet durch eine nacheinanderfolgende Aufheiz.ung der Mantel- und Stirnseiten. PATENT CLAIMS: i. Device for all-round inductive heating of closed, hollow cylinders, characterized by successive heating of the jacket and front sides. 2. Vorrichtung nach Anspruch i zur reihenweisen Aufheizung, gekennzeichnet durch Vorschubeinrichtungen, die ruckweise die Hohlzylinder :durch die Heizvorrichtungen bewegen, wobei die Längen, der Heizvortichtungen einem ganzen Vielfachen der Länge der Mantel- bzw. Stirnseiten entsprechen.2. Apparatus according to claim i for rows Heating, characterized by feed devices that jerk the hollow cylinder : move through the heating devices, the lengths of the heating devices being one correspond to whole multiples of the length of the shell or face sides.
DEA8171D 1943-06-16 1943-06-16 Device for all-round inductive heating of closed hollow cylinders Expired DE917198C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA8171D DE917198C (en) 1943-06-16 1943-06-16 Device for all-round inductive heating of closed hollow cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA8171D DE917198C (en) 1943-06-16 1943-06-16 Device for all-round inductive heating of closed hollow cylinders

Publications (1)

Publication Number Publication Date
DE917198C true DE917198C (en) 1954-08-26

Family

ID=6921431

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA8171D Expired DE917198C (en) 1943-06-16 1943-06-16 Device for all-round inductive heating of closed hollow cylinders

Country Status (1)

Country Link
DE (1) DE917198C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039672B (en) * 1956-09-18 1958-09-25 Alfons Mall K G Maschinen U Me Device for the heat treatment of hollow bodies by induction
US3437778A (en) * 1965-12-01 1969-04-08 Aeg Elotherm Gmbh Apparatus for inductively heating electrically conducting workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039672B (en) * 1956-09-18 1958-09-25 Alfons Mall K G Maschinen U Me Device for the heat treatment of hollow bodies by induction
US3437778A (en) * 1965-12-01 1969-04-08 Aeg Elotherm Gmbh Apparatus for inductively heating electrically conducting workpieces

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