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DE902064C - Compensated bundle body - Google Patents

Compensated bundle body

Info

Publication number
DE902064C
DE902064C DEA11815D DEA0011815D DE902064C DE 902064 C DE902064 C DE 902064C DE A11815 D DEA11815 D DE A11815D DE A0011815 D DEA0011815 D DE A0011815D DE 902064 C DE902064 C DE 902064C
Authority
DE
Germany
Prior art keywords
gap
workpiece
heated
aperture
bundling body
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
DEA11815D
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 DEA11815D priority Critical patent/DE902064C/en
Application granted granted Critical
Publication of DE902064C publication Critical patent/DE902064C/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
    • H05B6/36Coil arrangements
    • H05B6/365Coil arrangements using supplementary conductive or ferromagnetic pieces

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Description

Es ist bekannt, bei der Erwärmung von Werkstücken mit Hochfrequenz die Erwärmung ausschließlich auf den zu erwärmenden, Teil des Werkstückes zu beschränken. Zu diesem Zweck wird ein aus gut leitendem Werkstoff bestehender Körper benutzt, der in enger Kopplung mit der Induktor= spule steht und die um die zu erwärmende Stelle liegenden Teile! des Werkstückes abdeckt bis auf einen Spalt, welcher den Bündelungskörper einseitig auftrennt.It is known when heating workpieces with high frequency to limit the heating exclusively to the part of the workpiece to be heated. A body made of highly conductive material is used for this purpose, which is in close coupling with the inductor coil and the one around the one to be heated Place lying parts! of the workpiece covers up to a gap, which the Bundling body separates on one side.

Es hat sich gezeigt, daß durch den Spalt, der an sich für die Wirkung des Bündelungskörpers erforderlich ist, eine gewisse Verzerrung insofern auftritt, als der in der Nähe des Spaltes, liegende Teil der zu erwärmenden Stelle weniger stark erwärmt wird als die anderen Stellen.. Der Bündelungskörper blendet gewissermaßen in der Nähe des Spaltes zu wenig ab. Gemäß der Erfindung soll diese Einwirkung des Spaltes auf die Blendenwirkung kompensiert werden. Um dies zu erreichen, kann entweder die Blende bzw. der Bündelungskörper um seine Achse relativ zum Werkstück gedreht werden, man kann aber auch die Blende am Spalt die zu erwärmende Werkstücksstelle so weit überdecken lassen, daß sich ein nahezu geschlossener, kreisförmiger Stromverlauf an. der Blendenäffnung ergibt.It has been shown that through the gap, which in itself is responsible for the effect of the bundling body is required, a certain distortion occurs insofar as than the part of the area to be heated near the gap, less is much warmed up than the other places .. The bundling body blinds to a certain extent too little in the vicinity of the gap. According to the invention, this action of the Gap to be compensated for the diaphragm effect. To do this you can either the diaphragm or the bundling body rotated about its axis relative to the workpiece but you can also use the aperture at the gap where the workpiece is to be heated Can be covered so far that an almost closed, circular current flow at. the aperture results.

In der Zeichnung ist für, die zweite Möglichkeit ein Ausführungsbeispiel dargestellt. Die Blende i, die das zu erhitzende Werkstück z in der Umgebung der zu erhitzenden kreisförmigen Stelle 3 abdeckt, besitzt zwei Ausweitungen q., welche die zu erhitzende Stelle 3 in der Nähe des Spaltes 5 etwas, überdecken. Hierdurch wird der in der Blende i verlaufende, Strom, welcher durch Linienzug 6 schematisch dargestellt ist, in der Nähe des Spaltes mehr an die Blendenöffnung herangedrückt und sorgt so für eine entsprechend intensive Erhitzung der Stelle 3 auch in der Nähe des Spaltes 5.The drawing shows an exemplary embodiment for the second possibility shown. The aperture i, which the workpiece to be heated z in the vicinity of the to be heated circular point 3 covers, has two expansions q. Which the point to be heated 3 in the vicinity of the gap 5, cover something. Through this becomes the current running in the diaphragm i, which is shown schematically by the line 6 is shown, pushed closer to the aperture in the vicinity of the gap and thus ensures a correspondingly intensive heating of the point 3 also in the Near the gap 5.

Eine ähnliche Wirkung läßt sich auch noch dadurch erreichen, daß man für den Stromverlauf am Spalt in der Nähe der Blendenöffnung besonders günstige, Bedingungen: schafft, beispielsweise dadurch, daß man den Widerstand der Blende an dieser Stelle 6 niedrig macht.A similar effect can also be achieved by particularly favorable for the current flow at the gap near the aperture, Conditions: creates, for example, by the resistance of the diaphragm makes 6 low at this point.

Claims (3)

PATEN TANSPR-LC,HE: i. PATEN TANSPR-LC, HE: i. Bündelungskörper, dadurch gekennzeichnet, daß die Einwirkung des Spaltes auf die Blendenwirkung kompensiert ist. z. Bün.delungskörper nach Anspruch i, dadurch gekennzeichnet, daß die Blende, während der Erwärmung um ihre Achse relativ zum Werkstück gedreht wird. Bundling body, characterized in that that the effect of the gap on the diaphragm effect is compensated. z. Bundling body according to claim i, characterized in that the screen, during the heating to its axis is rotated relative to the workpiece. 3. Bündelungskörper nach Anspruch i, dadurch gekennzeichnet, daß die Blende am Spalt die zu erwärmende Werkstücksstelle so weit überdeckt, daß sich ein nahezu geschlossener, der Form der zu erhitzenden Werkstücksstelle angepaßter Stromverlauf an der Blendenöffnung ergibt.3. bundling body according to claim i, characterized in that the aperture at the gap is the workpiece point to be heated covered so far that there is an almost closed shape, the shape of the to be heated Workpiece location adapted current curve at the aperture results.
DEA11815D 1940-08-22 1940-08-22 Compensated bundle body Expired DE902064C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA11815D DE902064C (en) 1940-08-22 1940-08-22 Compensated bundle body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA11815D DE902064C (en) 1940-08-22 1940-08-22 Compensated bundle body

Publications (1)

Publication Number Publication Date
DE902064C true DE902064C (en) 1954-01-18

Family

ID=6922352

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA11815D Expired DE902064C (en) 1940-08-22 1940-08-22 Compensated bundle body

Country Status (1)

Country Link
DE (1) DE902064C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939223C (en) * 1944-05-06 1956-02-16 Telefunken Gmbh Device for heating metal bodies by high-frequency eddy currents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939223C (en) * 1944-05-06 1956-02-16 Telefunken Gmbh Device for heating metal bodies by high-frequency eddy currents

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