公开(公告)号：US20200215605A1

公开(公告)日：2020-07-09

申请号：US16637495

申请日：2018-08-08

Applicant: POSCO

Inventor： Kyung Shik OH ,  Young Hoon KANG ,  Joo Dong LEE ,  Ki Hwan JOUNG

IPC: B22D11/128

Abstract: Provided is a roller assembly which includes: a supporter configured to rotatably support a roller disposed in a movement path of a to-be-treated material; a fixed shaft attached to a rear surface of the supporter and having at least a stretchable portion; a body attached to the rear surface side of the supporter so as to surround the fixed shaft; and a plunger attached so as to connect the body and the fixed shaft and formed so that at least a portion thereof advances and retreats with respect to the movement path, a casting device provided with the roller assembly, and a roller separating method, wherein the roller assembly is capable of separating the roller from the movement path during emergency.

公开(公告)号：US20180250736A1

公开(公告)日：2018-09-06

申请号：US15760451

申请日：2015-10-23

Applicant: POSCO

Inventor： Kyung Shik OH ,  Young Hoon KANG ,  Joo Dong LEE ,  Ki Hwan JOUNG ,  Un Kwan CHO

IPC: B22D11/128 ,  B22D11/053 ,  B22D11/041 ,  B22D11/14 ,  B22D11/124

CPC classification number: B22D11/1281 ,  B22D11/041 ,  B22D11/053 ,  B22D11/12 ,  B22D11/1245 ,  B22D11/128 ,  B22D11/14 ,  B22D11/141

Abstract: Provided is vertical semi-continuous casting equipment including a guide device disposed under the mold to support the slab drawn from the plate, the guide device being configured to guide the descending of the slab. The guide device includes first and second guide parts including a plurality of guide rolls respectively disposed on both sides of a moving path of the plate under the mold to support the slab moving by the plate and guide the movement of the slab and a braking unit connected to each of the guide rolls to apply braking force to the guide roll that rotates by the movement of the slab. In accordance with an exemplary embodiment, the slab having the length longer than that of the slab in accordance with the related art may stably descend, the shaking of the slab may be prevented, and the casting speed may be stabilized.