Electric heating – Metal heating – Of cylinders
Patent
1986-10-08
1989-01-03
Paschall, M. H.
Electric heating
Metal heating
Of cylinders
219 1071, 219 1043, 219 1057, H05B 506
Patent
active
047958723
ABSTRACT:
The present invention concerns an electromagnetic induction heating apparatus which is suitable for electromagnetic induction heating a strip which is to be treated such as metal strip. The apparatus incorporates magnetic flux diverting mechanism in the vicinity of both edges of the passing strip which diverts a part of an alternating magnetic flux transversing the strip. In consequence, it is possible to eliminate the generation of extremely high temperature regions at the edge portions of the strip to be treated which is caused by the concentration of magnetic flux, ensuring uniform heating temperature distributions over the entire strip.
REFERENCES:
patent: 2448012 (1948-08-01), Baker
patent: 2448690 (1948-09-01), Storm
patent: 3444346 (1969-05-01), Russell et al.
patent: 4075450 (1978-02-01), Lavins, Jr.
patent: 4185183 (1980-01-01), Kamimoto
patent: 4468549 (1984-08-01), Arnosky
Scherg, the German publication entitled, "Uber die Anwendbarkeit . . . ect." Elektrowarme Institut . . . ect. (AIF) pp. 55-62.
Article: TFX A Big Step Forward in the Continuous Heat Treatment of Metal Strip-"Light Metal Age", vol. 40, Nos. 11 and 12 (Dec., 1982).
Hagisawa Nobuyasu
Ikeda Hiroshi
Nippon Light Metal Company Limited
Paschall M. H.
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