소둔 분리제용 산화마그네슘 및 방향성 전자강판

• Main Authors: KITAGAKI MASAKI, HIRATSU YUTAKA, KAMEI TADASUKE
• Format: Patent
• Language: Korean
• Published: 05.12.2018
• Subjects: CHEMISTRY; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INORGANIC CHEMISTRY; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

본 발명은, 자기 특성 및 절연 특성이 뛰어난 방향성 전자강판을 얻기 위한 소둔 분리제용 산화마그네슘을 제공하는 것을 과제로 한다. 상기 과제를 해결하기 위한 본 발명은, 브레인 비표면적이 2.5×10∼ 7.0×10m·kg및 CAA가 50∼170초인 소둔 분리제용 산화마그네슘이다. An object of the present invention is to provide magnesium oxide for an annealing separator which is useful for obtaining grain-oriented electromagnetic steel sheets with excellent magnetic properties and insulating properties. To resolve the above object, an aspect of the present invention resides in magnesium oxide for an annealing separator having a Blaine specific surface area of 2.5 × 10 3 to 7.0 × 10 3 m 2 ·kg -1 and CAA of 50 to 170 seconds.