Inductor for generating an electromagnetic alternating field

摘要

The invention relates to an inductor for generating an electromagnetic alternating field, especially for heating a fireproof ceramic part of a mold. The inductor comprises windings (5) and a current-conducting connection line (10) which extends in the alternating field of the windings (5). The windings (5) and the connection line (10) are cooled. In order to improve the efficiency of the inductor (1), the connection line (10) comprises at least one longitudinal slot (13) or is constructed out of at least one strand (21) whose outer diameter is smaller than or comparable to the penetration depth of the electromagnetic alternating field.