HEATING APPARATUS FOR INDUCTION HEATING OF A FLAT STEEL STRIP IN A HOT ROLLING MILL Russian patent published in 2022 - IPC H05B6/06 B21B45/00 

FIELD: rolling.

SUBSTANCE: group of inventions relates to the field of rolling production and can be used for induction heating of a flat steel strip in a hot rolling mill. Heating apparatus is located between two groups of rolling stands of a hot rolling mill, and the flat steel strip is passed through the heating apparatus in the transport direction; wherein the heating apparatus includes several transverse field modules located one after the other along the strip transport direction, several longitudinal field modules located one after the other along the strip transport direction, a first current source for powering at least one transverse field module, and a second current source for powering at least one longitudinal field module, wherein each of said current sources has its own frequency converter, an electrically connected capacitor battery and a frequency input enabling setting of the nominal frequency. Also proposed are methods for induction heating of a flat steel strip using the above heating apparatus.

EFFECT: increase in the uniformity of heating of the strip in width and thickness.

15 cl, 10 dwg