| 摘要 |
PURPOSE:To execute satisfactory rolling without the generation of web waving and material deterioration, etc. by heating a web during rolling so that the difference between the web temp. and flange temp. is diminished. CONSTITUTION:Induction heaters are constituted of inductors 13a, 13a and coils 13a', 13a', inductors 13b, 13b and coils 13b', 13b', inductors 13c, 13c and coils 13c', 13c' provided above and below the web 11. The inductor 13a is attached to or spaced from one round part and the inductor 13c is attached to or spaced from the other round part when a screw rod 17 is rotated by a motor 18. The extents of the movement thereof are detected by a selsyn 19. The difference between the web temp. and flange temp. is thereby diminished and the generation of the web waving, material deterioration, etc. is prevented. |
