ELECTRICAL STEEL SHEET

• Main Authors: TAKAHASHI MASARU, FUJII HIROYASU, TAKEDA KAZUTOSHI, YAMAZAKI SHUICHI
• Format: Patent
• Language: English; Korean
• Published: 24.07.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CORRECTING FLUIDS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; FILLING PASTES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; USE OF MATERIALS THEREFOR; WOODSTAINS

전자 강판(1)은 전자강의 모재(2)와, 모재(2)의 표면에 형성된 절연 피막(3)을 포함한다. 절연 피막(3)은 Al, Zn, Mg 및 Ca로 이루어지는 군에서 선택된 1종 이상의 인산염을 함유한다. 절연 피막(3) 중의 P 원자의 물질량(mol)에 대한 Fe 원자의 물질량(mol)의 비율이 0.1 초과 0.65 이하이다. An electrical steel sheet (1) includes a base material (2) of electrical steel, and an insulating film (3) formed on a surface of the base material (2). The insulating film (3) contains a phosphate of one or more selected from the group consisting of Al, Zn, Mg and Ca. A proportion of an amount by mole (mol) of Fe atoms relative to an amount by mole (mol) of P atoms in the insulating film (3) is more than 0.1 nor more than 0.65.