Coating solution for forming an insulation film on grain-oriented electrical steel sheet, method for manufacturing said coating solution, and method for forming an insulation film on grain-oriented electrical steel sheet by using the same

摘要

The present invention relates to a white coating composition of the grain-oriented electrical steel sheet , and a core made of a magnetic material nanoparticles , core comprising a cell having at least one functional group bonded to the surface of the core -shell nanoparticles from 0.05 to 70 % by weight; And 30 to 99.5 % by weight of phosphate ; doedoe compositions including the core - and -core made of a magnetic substance cells nanoparticles nanoparticles , characterized in that it includes the cell having at least one functional group bonded to the surface of the core to provide a white coating composition of the grain-oriented electrical steel sheet . Therefore, do not contain chromium oxide glass , while improving environmentally superior ability to tension applying tensile stress due to the insulating coating and corrosion resistance, it is also possible to produce an excellent grain-oriented electrical steel sheet . ;