Abstract: Both an apparatus and method are provided for electromagnetically braking a flow of molten metal during a continuous casting operation. The apparatus includes an electric electromagnetic inductor of the traveling-magnetic-field polyphase stator-type connected to a source of electrical power. The inductor is mounted on a casting plant opposite one face of the product being cast, and has two or three phase windings. The electrical power supply of the apparatus includes two or three elementary DC sources, each of which can be adjusted in terms of current intensity independent of one another. Each of the elementary electrical DC sources is connected to one, and only one of the phase windings of the inductor. The arrangement of the apparatus allows a flow of molten, ferromagnetic metal such as steel to be adjustably braked by merely adjusting the parameters of the source of electrical supply.
Abstract: An electromagnetic inductor for producing a rotating magnetic field for use with an ingot mold for continuous casting of metal and provided with an apparatus for sensing the upper level of liquid metal in the mold. The inductor, of the static polyphase type, comprises an annular magnetic yoke provided with a plurality of radially inwardly projecting poles having each an exciter winding and at least two adjacent poles are spaced further in the circumferential direction of the yoke from each other than the other pole. The yoke may be provided in the region between these two poles with a cutout and beneath the cutout with a portion of increased thickness. The inductor may be used around an ingot mold for the continuous casting of metal provided with a gamma ray emitter and a gamma ray receiver located at opposite sides of the mold for detecting the position of the level of the cast liquid metal.