HEATING COIL FOR INDUCTION HEATER

摘要

PROBLEM TO BE SOLVED: To provide an induction heater at a low cost by realizing a heating coil in a simple and inexpensive configuration. SOLUTION: An electric conductor 11 comprising a plurality of wires is wound in a spiral shape, an oxide film of the electric conductor 11 is provided on the surface of the plurality of wires, and an inexpensive induction heater is realized omitting a highly heat-resistant insulating material which has been necessary.