리사이클성이 우수한 무방향성 전기 강판

• Main Authors: OKUBO TOMOYUKI, UESAKA MASANORI, ODA YOSHIHIKO
• Format: Patent
• Language: Korean
• Published: 22.07.2019
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INDUCTANCES; 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; TRANSFORMERS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

C : 0.0050 mass％ 이하, Si : 1.0 ∼ 5.0 mass％, Mn : 0.03 ∼ 3.0 mass％, P : 0.2 mass％ 이하, S : 0.005 mass％ 이하, Al : 0.05 mass％ 이하, N : 0.0050 mass％ 이하, O : 0.010 mass％ 이하, Ti : 0.0030 mass％ 이하, Nb : 0.0030 mass％ 이하, B : 0.0005 ∼ 0.0050 mass％ 를 함유하고, 잔부가 Fe 및 불가피적 불순물로 이루어지는 성분 조성을 갖는, 리사이클성이 우수할 뿐만 아니라 응력 제거 어닐링 후의 철손 특성도 우수한 무방향성 전기 강판. A non-oriented electrical steel sheet which has a chemical composition comprising C: not more than 0.0050 mass%, Si: 1.0-5.0 mass%, Mn: 0.03-3.0 mass%, P: not more than 0.2 mass%, S: not more than 0.005 mass%, Al: not more than 0.05 mass%, N: not more than 0.0050 mass%, O: not more than 0.010 mass%, Ti: not more than 0.0030 mass%, Nb: not more than 0.0030 mass%, B: 0.0005-0.0050 mass% and the remainder being Fe and inevitable impurities, and is excellent in not only the recyclability but also the iron loss property after stress-relief annealing.