| 摘要 |
PURPOSE:To improve the efficiency of the coating process by a method wherein many metal pipes which are inserted with resin tubes are collected and supplied at the same time to pass through a coil for magnetic induction heating. CONSTITUTION:A main heating device 2 which uses magnetic induction, a transporting conveyer 3, a pipe end heating device 4 which uses magnetic induction and a taking out conveyer 5 are arranged in order in a series at the front of a feeding conveyer 1. Each conveyer 1, 3, 5 is provided with guides 6 on both sides to the transport direction, and many metal pipes A which are supplied so as to become the piled up condition are transported being kept holding at the gathered condition. |
