FIELD: railroad transport, mechanical engineering.
SUBSTANCE: between lower end surface of multi-coil, multi-layer inductive coil and its heat insulation a slit air space is made in form of disk with central opening, in which along middle line of circle three flat sickle-shaped heads of air-guiding branch pipes are placed having multiple radially-directed recesses for forced letting through of cooling air. Cooling air forms protective air screen, preventing transfer of heat to multi-coil, multi-layer inductive coil from subject foot.
EFFECT: fast and balanced heating of working portion of foot to 600°C and higher.
3 dwg
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