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1. 发明申请

US20030102055A1 Low iron loss and low noise grain-oriented electrical steel sheet and a method for producing the same 有权
标题翻译：低铁损和低噪音晶粒取向电工钢板及其制造方法
公开(公告)号：US20030102055A1
公开(公告)日：2003-06-05
申请号：US10288784
申请日：2002-11-06
申请人： Nippon Steel Corporation
发明人： Masahiro Fujikura , Satoshi Arai , Mosato Mizokami , Hisashi Mogi , Takeshi Kubota
IPC分类号： H01F001/14
CPC分类号： C21D8/1294 , B23K2103/04 , C21D8/1288 , H01F1/14775
摘要： The object of the present invention is to provide a low iron loss and low noise grain-oriented electrical steel sheet for securing both low core loss and low noise of a transformer at the same time. The present invention relates to a grain-oriented electrical steel sheet containing Si: 1.0-4.0 wt % produced by controlling, with regard to nullO, which is defined as a 0-p value when a grain-oriented electrical steel sheet is magnetized up to a saturated magnetic flux density, and null17, which is defined as the value obtained by subtracting a 0-p value at the magnetization magnetic flux density of 1.7 T from a 0-p value at a saturated magnetic flux density, nullOC and null17, which are absolute values deviated by forming a tension film and a forsterite film, and nullOL and null17L, which are absolute values deviated by irradiating laser after the film formation, in adequate ranges respectively, and further controlling null17, which is a 0-p value at the magnetization magnetic flux density of 1.7 T, in the most appropriate range, when measuring a 0-p value of magnetostriction vibration in the rolling direction.
摘要翻译：本发明的目的是提供一种用于同时确保变压器的低铁损和低噪声的低铁损和低噪音晶粒取向电工钢板。本发明涉及一种含有Si：1.0-4.0wt％的晶粒取向电工钢板，其对于epsiO，通过控制方向性电磁钢板被磁化时定义为0-p值饱和磁通密度和epsi17，其定义为通过以饱和磁通密度εiOC和epsi17从0-p值减去1.7T的磁化磁通密度的0-p值获得的值，其中εi 是通过形成张力膜和镁橄榄石膜而偏离的绝对值，分别在成膜后通过照射激光而偏离的绝对值的epsiOL和epsi17L分别在适当的范围内，并进一步控制lambd17，其为0-p值当测量轧制方向上的磁致伸缩振动的0-p值时，磁化磁通密度为1.7T，处于最合适的范围内。

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