DE902064C - Compensated bundle body - Google Patents
Compensated bundle bodyInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/365—Coil 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)
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)
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 |
-
1940
- 1940-08-22 DE DEA11815D patent/DE902064C/en not_active Expired
Cited By (1)
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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