EP 0081400 B1 19860827 - MAGNETIC INDUCTION-HEATING DEVICE FOR RECTANGULAR METALLIC FLAT PRODUCTS MOVING LENGTHWISE
Title (en)
MAGNETIC INDUCTION-HEATING DEVICE FOR RECTANGULAR METALLIC FLAT PRODUCTS MOVING LENGTHWISE
Publication
Application
Priority
FR 8121238 A 19811113
Abstract (en)
[origin: US4481397A] Magnetic induction heating apparatus for flat, rectangular metal products travelling in the direction of their longitudinal axis, comprising at least one inductor mounted so as to rotate about an axis perpendicular to a wide face of the metal product and comprising at least two magnetic poles having polar surfaces sweeping out an annular area as the inductor rotates about the perpendicular axis. In order to effectuate the homogeneous heating of the metal product in the transverse direction, the polar surface of each magnetic pole has the shape of a curvilinear triangle with a truncated apex directed toward the axis of rotation of the inductor, two concave sides which are symmetric with respect to a straight line passing through the truncated apex and perpendicular to the axis of rotation, and a convex side of circular arc centered about the axis of rotation having a radius of curvature essentially equal to the external radius of the annular area sweep by the polar surfaces of the magnetic poles.
IPC 1-7
IPC 8 full level
H05B 6/10 (2006.01); H05B 6/02 (2006.01); H05B 6/36 (2006.01)
CPC (source: EP US)
H05B 6/102 (2013.01 - EP US); H05B 6/365 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE GB IT LI LU
DOCDB simple family (publication)
EP 0081400 A1 19830615; EP 0081400 B1 19860827; DE 3272924 D1 19861002; FR 2516641 A1 19830520; FR 2516641 B1 19840127; JP S5894789 A 19830606; JP S623554 B2 19870126; US 4481397 A 19841106
DOCDB simple family (application)
EP 82401998 A 19821028; DE 3272924 T 19821028; FR 8121238 A 19811113; JP 19788382 A 19821112; US 44109482 A 19821112