| 摘要 |
PURPOSE:To attempt to shorten the slab's moving time from a heating zone to a cooling zone by heating the slab nipped with a nipping tool in the heating zone and by quenching the slab pulled rapidly into the cooling zone with hunging the pulling out bar to the nipping tool. CONSTITUTION:The nipping tool 10 is contacted to the slab (a) transfered by a convayer 5 to the front of the heating zone 6 and a cotter 11 is beaten to the certain nipping with a nail 12. A front door 13 is opened and the slab (a) is introduced to the zone 6 by rolls 5, 6 and the door is closed. After heating uniformly to the prescribed temp., a back door 15 is opened, a pulling out bar 14 connected to a operating chain 16 is advanced to hang to a lateral bar 17 of the tool 10. And the slab (a) is pulled out forcedly and rapidly, introduced to the cooling zone 8 and the door is closed. The bar 14 is removed, cooling water is supplied to a pressure room of each cooling chamber 8a by a pump 24 and is discharged to upper and lower surfaces of the slab (a) from the discharge hole to fill and fluidize in the chamber 8a and is flown out from the lower flowing out hole so as to cool the slab (a) in short time. Then the slab (a) is transferred to a convayer 9 by the rolls 8, 9. |
