POSCO Holdings Inc.
Composition for non-oriented electrical steel sheet, method of manufacturing non-oriented electrical steel sheet product, and non-oriented electrical steel sheet product

Abstract:

A non-oriented electrical steel sheet composition, a manufacturing method of the non-oriented electrical steel sheet product, and a non-oriented electrical steel sheet product are provided, and the non-oriented electrical steel sheet composition includes a first composition including a soluble epoxy resin and an inorganic nanoparticle of SiO.sub.2, TiO.sub.2, ZnO, or combinations thereof, and an inorganic additive of phosphoric acid (H.sub.3PO.sub.4), sodium hydroxide (NaOH), or a combination thereof, wherein the inorganic nanoparticle is substituted in a terminal substituent group of the soluble epoxy resin, and the epoxy resin is a multifunctional epoxy resin in which there are three or more epoxy groups.