公开(公告)号：US10239143B2

公开(公告)日：2019-03-26

申请号：US15107281

申请日：2014-12-22

Applicant: POSCO

Inventor： Seung-Ho Lim ,  Yeong-Seon Park ,  Seong-Yeon Kim ,  Ki-Hwan Kim ,  Ji-Won Yu

IPC: B23K7/06 ,  B23K7/10 ,  B22D11/126 ,  B23K7/00 ,  B23K101/18 ,  B23K103/04 ,  B23K103/06

Abstract: A slab scarfing apparatus comprises: an upper nozzle unit having an upper surface nozzle for scarfing an edge portion of the upper surface of a slab and having a first side nozzle scarfing an upper edge portion of the side surface of the slab and moving together with the upper surface nozzle; a lower nozzle unit having a lower nozzle for scarfing an edge portion of the lower surface of the slab and having a second side nozzle scarfing a lower edge portion of the side surface of the slab and moving together with the lower nozzle; and a moving apparatus for moving the upper nozzle unit and the lower nozzle unit to allow the upper nozzle unit and the lower nozzle unit to be adjacent to or to be spaced apart from an edge portion of the slab. A method of controlling the apparatus is provided.