| 摘要 |
<p>PURPOSE:To perform a vibration proof steel plate manufacturing apparatus which can uniformly heat a whole steel plate and has a heater with a small time constant by providing as an induction heater for heating conductor plates such as a steel plate or the like in which a polymer material is inserted. CONSTITUTION:A polymer material 4 made, for example, of polypropylene, nylon, etc., to be supplied by a payoff reel 3 for a polymer material is sandwiched between supplied steel plates 2A and 2B with laminating rollers 5, and the plates 2A, 2B are heated by an induction heater 11 to melt the material 4. Thereafter, the plates 2A, 2B are adhered through the material 4 by pressure adhering rollers 7, cooled by a cooling furnace 8, then dried by a drying furnace 9, and wound on a winding roll 10. The heater 11 generates an eddy current in the plates 2A, 2B by supplying a high frequency current 12 to its solenoid coil 12, and the plates 2A, 2B are heated by the Joule heat of the eddy current.</p> |
