INDUKTIONSOFEN ZUM BEHANDELN VON ELEKTRISCH LEITFÄHIGEN STREIFEN, BLÄTTERN, PLATTEN UND FELDWICKLUNG DAFÜR

The invention concerns a furnace for thermal treatment of electrically conductive strips, sheets, plates, in particular made of metal, which move in the furnace consisting of an enclosed volume maintained under a gas atmosphere, which comprises a heating section with at least one field winding formed by a pair of half-field windings with transverse and pseudo-transverse flux. In the heating section (5), at least two walls (9) of the furnace comprise each an opening (10) facing each of the two half-field windings (11a, 11b) and two panels (12) transparent to the magnetic flux cover respectively said openings (10), said panels (12) including at their periphery (14) a shape adapted to constitute a barrier to the thermal radiation of the strip without providing impermeability to the gas, and each half-field winding (11a, 11b) is accommodated in a chamber (8a, 8b) delimited by walls projecting outwards of the furnace, said chambers being tightly isolated from ambient air but communicating with the inner volume of the furnace.