Posco Co., Ltd

Posco

Chang-Ho Kim

Jong-Tae Park

Seong-Cheol Hong

Ki-Young Min

Se-Min Park

Oho-Cheal Kwon

Hyun-Chul Park

Oh-Yeoul Kwon

Dong-geun Kim

Won-Gul Lee

Woo-Sin Kim

Jung-Moon Kang

Sang-Uk Ha

An alien substance removing apparatus according to one embodiment of the present invention may comprise: a hood unit provided adjacent to an electrical steel sheet and for collecting an alien substance generated in the electrical steel sheet by laser irradiation; and a scraping unit coupled to the hood unit and scraping and removing the alien substance attached to one surface of the hood unit facing the electrical steel sheet.

Alien substance removing apparatus and electrical steel sheet manufacturing facility having thereof

A foreign substance capturing apparatus according to an embodiment of the present invention may comprise: a capturing body unit having an inlet port for introducing the air including magnetic foreign substances and an outlet port for discharging the air from which the magnetic foreign substances have been removed; and a magnetic isolation unit connected to the capturing body unit, including a magnetic member for isolating, by an attractive force, the magnetic foreign substances from the air flowing in the capturing body unit, and provided with a nonmagnetic member surrounding the magnetic member.

Foreign substance capture apparatus and facility for manufacturing electrical steel sheet including same

A foreign substance collecting apparatus according to one embodiment of the present disclosure may comprise: a collection body unit formed with a suction port through which air including foreign substances flows in and a discharge port through which air removed of the foreign substances is discharged; and a mixing unit provided inside the collection body unit and disposed on a flow passage of the air, and forming a vortex in washing water contained therein by inducing a rotary flow of the air.

Foreign substance collecting apparatus and electrical steel sheet manufacturing facility including same

A grain-orientation electrical steel sheet according to an exemplary embodiment of the present invention includes a linear groove formed in a direction intersecting with the rolling direction, the groove includes the gradient section and the uniform section on a cross section including the transverse direction of the groove and the rolling surface normal direction of the steel sheet, and a length of the gradient section (GS) and the length of the uniform section (US) satisfy Equation 1 below.0.1≤[GSL]/[USL]≤0.5  [Equation 1]

Grain-oriented electrical steel sheet and magnetic domain refinement method thereof

Growing community of inventors

Pohang-si, South Korea

Chang-Ho Kim