자성 특성이 우수한 무배향 전기 강판(non-oriented electrical steel sheet) 및 이의 제조방법

• Main Authors: LV XUEJUN, LIU BAOJUN, SHEN KANYI, ZHANG FENG, ZONG ZHENYU, WANG BO, SUN YEZHONG
• Format: Patent
• Language: Korean
• Published: 12.05.2020
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

자성 특성이 우수한 무배향 전기 강판(non-oriented electrical steel sheet) 및 이의 제조방법에 관한 것으로, 화학 조성의 질량 백분율은 다음과 같다: C: 0-0.005%; Si: 2.1-3.2%, Mn: 0.2-1.0%, P: 0-0.2%, Al: 0.2-1.6%, N: 0-0.005%, Ti: 0-0.005%, Cu: 0-0.2% 및 Fe과 불가피한 불순물은 균형을 맞춤; 동시에, (MnS 형성을 위한 S 함량 + CuS 형성을 위한 S 함량) / 강철의 S 함량은 0.2 이하여야 한다. 본 발명의 무배향 전기 강판(non-oriented electrical steel sheet)의 제조방법은 간단하고 편리하며, 철강의 화학 조성은 제어가 쉽고 제조공정이 안정적이며 기술 요구 사항을 쉽게 구현할 수 있다. Disclosed are a non-oriented electrical steel sheet with excellent magnetic properties and a manufacturing method thereof, wherein the mass percentage of the chemical components thereof are: C: 0-0.005%; Si: 2.1-3.2%, Mn: 0.2-1.0%, P: 0-0.2%, Al: 0.2-1.6%, N: 0-0.005%, Ti: 0-0.005%, Cu: 0-0.2%, and the balance of Fe and inevitable impurities; and at the same time, (the S content for forming MnS + the S content for forming CuxS)/the S content in the steel is required to be less than or equal to 0.2. The process for manufacturing the non-oriented electrical steel sheet of the present invention is simple and convenient, the chemical components of the steel are easy to control, the manufacturing process is stable, and the technical requirements are easy to realize.