Posco

Posco Co., Ltd

Won-Seog Bong

Jong-Tae Park

Jung-Woo Kim

Yong-Soo Kim

Bongwoo Ha

Taeyoung No

Heon-Jo Choi

Jae-Hoon Kim

Jae-Kwan Kim

Sang-Ho Uhm

Tae Young No

Ji-Hyun Kim

Changhoon Choi

Heon Jo Choi

Chung-Ha Kim

Jung Woo Kim

An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.

Electrical steel sheet adhesive coating composition, electrical steel sheet product, and manufacturing method therefor

The present invention has been made in an effort to provide an adhesive coating composition capable of adhering (fastening) a non-oriented electrical steel sheet without using a conventional fastening method such as welding, clamping, or interlocking, a non-oriented electrical steel sheet stack to which the same is applied, and a manufacturing method thereof. According to an exemplary embodiment of the present invention, an adhesive coating composition includes: 40 to 99 wt % of a first component containing a water-soluble resin; and 1 to 60 wt % of a second component containing a composite metal phosphate.

Adhesive coating composition for non-oriented electrical steel sheet, and method for manufacturing non-oriented electrical steel sheet

There are provided a method for manufacturing an electrical steel sheet laminated core having reduced core loss and improved strength, and a laminated core produced by the manufacturing method. The method includes: stacking electrical steel sheets to obtain a lamination; and welding an outer surface of the lamination, wherein during the welding, a welding wire having a resistivity of 6.5&#xd7;10&#x3a9;m or greater, a relative permeability of less than 1.02, and a melting point lower than that of the electrical steel sheets is used as a welding material.

Method for manufacturing electrical steel sheet laminated core having reduced core loss and increased strength, and laminated core produced by the same

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Incheon, South Korea

Won-Seog Bong