INDUCTION-ARC FURNACE FOR HEATING STRIP STEEL LESS THAN 3 mm THICK, AND FOR HOMOGENIZATION OF TEMPERATURE TO DESIRED VALUE FOR NEXT STAGE OF HOT ROLLING Russian patent published in 1995 - IPC

FIELD: heating engineering. SUBSTANCE: induction furnace has number of toroidal coils supplied with power at intermediate frequency with intermediate feed rollers reduced in size in strip feed direction relative to mentioned coils so that rollers are spaced apart at shorter distance. Provision is also made for magnetic flux concentrators arranged better in pairs on inductor and mounted for transverse displacement relative to forward movement of strip and also, in plane perpendicular to it. EFFECT: more uniform heating of strip. 7 cl, 2 dwg