| 摘要 |
PROBLEM TO BE SOLVED: To make simple the insulating treatment of the induction heating coil and facilitate exchange of the slide rail, and prevent damages due to the difference of the heat shrinkage. SOLUTION: An insulating tube 25 is inserted in the coaxial direction inside the induction coil 9 and cross-sectionally trapezoidal cut-out parts 25a are formed on the upper and lower inner face of the insulating tube 25 in the axial direction, and a cross-sectionally trapezoidal slide rail 26 of insulating nature is inserted in and supported by these cut-out parts 25a so as to protrude inward from the insulating tube 25, and the slide rail 26 is split in the axial direction, and the slide rail 26 prevents contact of the induction heating coil 9 and a heated material 3 passing through internal of the coil. COPYRIGHT: (C)2004,JPO&NCIPI
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