| 摘要 |
PURPOSE:To apply a dip cooling to a hot rolled product for an optional duration corresponding to the material quality of the product, at cooling the just hot rolled strip coil on the way of transportation, by arranging a speed variable subsidiary conveying line along a cooling tank. CONSTITUTION:A main conveying line 1 is a power free conveyer in which a hanger 21 equipped with a detachable metallic attachment 21b travels at a constant speed. Beneath this line 1 and above a cooling tank 4, a subsidiary conveying line 5 is arranged; when a coil 3 comes to a transferring position, the coil 3 is disconnected by a drop lifter 7 and is brought down; then, the coil 3 is transferred by a feeder 7. At the same time as the coil 3 is transferred, it is dip cooled; at the end of this dip cooling, the coil 3 is returned to the main conveying line 1 by a feeder 9 and an upper lifter 10. The speed of subsidiary conveying line 5 is made variable; if a long hour cooling impractical by this speed variation range is needed, the coil 3 is stopped by a stopper 8 for an optional duration. |
