| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a heating coil with an entirely stabilized shape in a short time and efficiently after a coil conductor is wound. <P>SOLUTION: A coil conductor 5 is constituted by twisting a plurality of strands 1 provided with an insulation layer 3 and a fusion layer 4 around a conductor 2, and is provided with an insulation coating layer 7 on its outer periphery. The fusion layer 4 is softened and fused by heating with electric conduction to the coil conductor 5 after the coil conductor 5 is wound. When the electric conduction to the coil conductor 5 is stopped, the fusion layer 4 is solidified again so that the shape of the coil conductor 5 is stabilized, so as to form a fusion part 26, at which the adjacent fusion layers 4 are coupled and fixed to each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
