일방향성 전자 강판 및 그 제조 방법

• Main Authors: KATAOKA TAKASHI, FUJII HIROYASU, OKUMURA SHUNSUKE, USHIGAMI YOSHIYUKI, TAKEBAYASHI SEIKI
• Format: Patent
• Language: Korean
• Published: 08.09.2021
• Subjects: BASIC ELECTRIC ELEMENTS; 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 MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INDUCTANCES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAGNETS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSFORMERS

이 일방향성 전자 강판은, 강판과, 상기 강판 상에 배치된 절연 피막과, 상기 강판과 상기 절연 피막의 계면에서 상기 강판 상의 일부에, 상기 절연 피막에 감입되어 존재하는 스피넬을 갖고, 상기 스피넬의 양이, 상기 강판의 표면의 단위 면적당, 5 내지 50mg/㎡인 것을 특징으로 한다. This grain-oriented electrical steel sheet includes a steel sheet, an insulation coating disposed on the steel sheet, and a spinel present at a part on the steel sheet at an interface between the steel sheet and the insulation coating by being fitted into the insulation coating, in which an amount of the spinel is 5 to 50 mg/m2 per unit area of a surface of the steel sheet.