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    • 4. 发明公开
    • 자기특성이 우수한 방향성 전기강판 및 이의 제조방법
    • 具有优异磁性的面向导电的电工钢板及其制造方法
    • KR1020140012363A
    • 2014-02-03
    • KR1020120079014
    • 2012-07-19
    • 주식회사 포스코
    • 심호경김지현
    • B23K20/04B32B37/12B32B15/01
    • The present invention relates to a grain-oriented electrical steel sheet which is used for an iron core material of a generator and a transformer etc., and a method for manufacturing the same. According to the present invention to achieve the above purpose, a method for manufacturing a grain-oriented electrical steel sheet comprises: (a) a step for preparing a grain-oriented electrical steel sheet of 2 or more; (b) a step for attaching an insulating adhesive to more than one side between two sides which are mutually opposing of the grain-oriented electrical steel sheet of 2 or more; (c) a step for obtaining a grain-oriented electrical steel sheet laminate by arranging the grain-oriented electrical steel sheet of 2 or more on top of each other in order to interpose the insulating adhesive between the grain-oriented electrical steel sheets; (d) a step for manufacturing a grain-oriented electrical steel sheet by bonding and heating the grain-oriented electrical steel sheet laminate at 200-350°C after rolling the grain-oriented electrical steel sheet laminate with roll separating force of 2-4 N/mm2 for 1-2 hours; and (e) a step for forming an insulating layer by coating the insulating adhesive in an upper side and a lower side of the manufactured grain-oriented electrical steel sheet.
    • 本发明涉及一种用于发电机和变压器等的铁芯材料的方向性电磁钢板及其制造方法。 根据本发明,为了实现上述目的,一种方向性电磁钢板的制造方法包括:(a)制造2以上的方向性电磁钢板的工序; (b)将绝缘性粘合剂附着在与所述方向性电磁钢板相互相对的2个以上的两侧以上的一侧以上的工序; (c)为了将绝缘性粘合剂插入到取向电工钢板之间,通过将2个以上的方向电磁钢板彼此顶面配置而获得方向性电磁钢板层叠体的工序; (d)通过在取向电磁钢板层压体的辊分离力为2-4的条件下,在200-350℃下对晶粒取向电工钢板层压体进行粘合加热来制造方向性电磁钢板的工序 N / mm2 1-2小时; 和(e)通过在所制造的晶粒取向电工钢板的上侧和下侧涂覆绝缘粘合剂来形成绝缘层的步骤。