COIL FOR ELECTROMAGNETIC INDUCTION HEATING, FIXING DEVICE, AND MANUFACTURING METHOD OF COIL FOR ELECTROMAGNETIC INDUCTION HEATING

摘要

PROBLEM TO BE SOLVED: To perform almost uniform heating in a wide range by using a stranded wire as the wire of a coil for electromagnetic heating and enabling intensive winding of the wire even in a bent and turned portion, and to perform efficient heating by suppressing heating in the outside of the prescribed range.;SOLUTION: A slave stranded wire is formed by stranding a plurality of strands, and a master stranded wire formed by stranding a plurality of the slave stranded wires is wound two or more times in a prescribed shape to form the coil 21 for electromagnetic heating. The shape of the coil has two parallel straight line portions A, and the bent and turned portion B which is continuous with them. The stranding pitch of the master stranded wire or the stranding pitches of the master stranded wire and the slave stranded wire are made larger than the stranding pitch of the straight line portion A in the bent and turned portion B.;COPYRIGHT: (C)2008,JPO&INPIT