公开(公告)号：US06978531B1

公开(公告)日：2005-12-27

申请号：US09674589

申请日：1999-03-04

Applicant: Deung-Mo Che ,  Sang-Il Lee ,  Yeoung-Rin Min

Inventor： Deung-Mo Che ,  Sang-Il Lee ,  Yeoung-Rin Min

IPC: B21B1/00 ,  B21B1/22 ,  B21B1/46 ,  B21B15/00 ,  B21B45/00

CPC classification number: B21B1/466 ,  B21B1/224 ,  B21B15/0085 ,  B21B45/004 ,  B21B2201/14 ,  Y10T29/49991

Abstract: Disclosed is a method for manufacturing hot rolled steel sheets. The method includes the steps of passing molten steel through a continuous caster (11) having a mold after having been passed through a ladle (91) and a tundish (92) to manufacture a slab; cutting the slab to predetermined lengths using a cutter (14a) to form a plurality of cut slabs; heating the cut slabs to a predetermined temperature in a first heating furnace (15a) descaling the cut slabs heated in the first heating furnace; rolling the slabs in a reduction unit (13) to a predetermined thickness to form a plurality of flat bars; heating the flat bars to a predetermined temperature in a second heating furnace (15b); coiling the flat bars by a coiling station (16a) while the flat bars are maintained in a heated state; uncoiling the flat bars by an uncoiler (16b); and rolling the flat bars to a predetermined thickness in a finishing mill.

Abstract translation: 公开了一种热轧钢板的制造方法。 该方法包括以下步骤：在已经通过钢包（91）和中间包（92）之后使钢水通过具有模具的连续铸造机（11）以制造板坯; 使用切割器（13a）将所述板坯切割成预定长度以形成多个切割的板坯; 在第一加热炉（15a）中将切割的板坯加热到预定温度，除去在第一加热炉中加热的切割的板坯; 将还原单元（13）中的板坯轧制到预定厚度以形成多个扁钢条; 在第二加热炉（15b）中将扁钢条加热到预定温度; 当扁平条保持在加热状态时，通过卷取站（16a）卷绕扁条; 通过开卷机（16a）将所述扁平条开卷; 并在精轧机中将扁钢轧制成预定厚度。