公开(公告)号：US20180161837A1

公开(公告)日：2018-06-14

申请号：US15578520

申请日：2015-09-18

Applicant: POSCO

Inventor： Young-Ju KO ,  Jea-Sook CHUNG ,  Suk-Cheol SONG ,  Kyeong-Mi PARK ,  Yong-Seok CHO ,  Young-Sup SHIM

IPC: B21B1/46 ,  B21B35/02 ,  B21B38/00 ,  B21B1/02

CPC classification number: B21B1/46 ,  B21B1/02 ,  B21B1/463 ,  B21B35/02 ,  B21B38/00 ,  B21B2001/028

Abstract: Provided is a continuous casting and rolling method, which includes: a continuous casting operation of producing a slab; and a rolling operation of pressing the slab after a front end portion of the slab passes a first rolling stand into which the front end portion of the slab, which is provided as a continuous body to the slab produced in the continuous casting operation, initially enters.

公开(公告)号：US20180297092A1

公开(公告)日：2018-10-18

申请号：US15768677

申请日：2016-06-27

Applicant: POSCO

Inventor： Jea-Sook CHUNG ,  Suk-Cheol SONG ,  Kyo-Sun PARK ,  Yong-Ki KIM ,  Yong-Seok CHO ,  Young-Sup SHIM ,  Young-Ju KO ,  Kyeong-Mi PARK

IPC: B21B1/46 ,  B21B37/76 ,  B21B45/02 ,  B21B38/04

Abstract: Provided is an endless rolling apparatus and method, which have improved cooling conditions for producing advanced high strength steel. The endless rolling apparatus includes: a continuous casting machine for casting a slab; and a cooling bed having at least one piece of water-cooling equipment and at least one rolling mill continuously connected to the continuous casting machine, wherein, in the cooling bed, an initial position (S) at which the water-cooling equipment is provided so as to manufacture advanced high strength steel through at least one water-cooling is defined by mathematical formula 1. Here, H is the thickness (mm) of a slab, V is the casting speed (m/sec) of the slab, h is the product thickness (mm), and t is the target arrival time (sec) until entry into the cooling bed.

公开(公告)号：US20160318081A1

公开(公告)日：2016-11-03

申请号：US15108551

申请日：2013-12-26

Applicant: POSCO

Inventor： Jea-Sook CHUNG ,  Il-Sin BAE ,  Young-Ju KO ,  Kyeong-Mi PARK ,  In-Jae LEE ,  Choong-Yun LEE ,  Suk-Cheol SONG ,  Seong-Yeon KIM ,  Jong-Yeon HWANG ,  Sang-Hyeon LEE

IPC: B21B1/46 ,  B22D11/126 ,  B21B45/00 ,  B21B1/26 ,  B21B37/74

CPC classification number: B21B1/463 ,  B21B1/26 ,  B21B37/74 ,  B21B45/004 ,  B22D11/126

Abstract: A hot rolling device, according to one embodiment of the present invention, may comprise: a cast part supply portion for producing a cast part; a hot roller, linked to the cast part supply portion, for receiving and hot-rolling the cast part; and a heating unit, arranged between the cast part supply portion and the hot roller, for reheating an outer surface portion in the widthwise direction of the cast part while latent heat is maintained in the center portion of the widthwise direction of the cast part from preheating.

Abstract translation: 根据本发明的一个实施例的热轧装置可以包括：用于制造铸造件的铸造件供应部分; 连接到铸造件供应部分的用于接收和热轧铸造件的热辊; 以及设置在铸造件供给部和热辊之间的加热单元，用于在铸造件的宽度方向上再加热外表面部分，同时在铸造件的宽度方向的中心部分中保持预热， 。