目前,作为Fe-Si系磁性材料使用的大多是含有3%Si的电磁钢板。尽管人们知道增加硅含量是提高性能的有力手段,但是苦于高硅电磁钢板不能轧制。最近,日本钢管公司技术开发本部利用细化Fe-6.5Si合金的铁素体相,使其易于轧制,同时采用了特殊的轧制方法,从而轧制成功了硅含量高达6.5%的磁性 At present, most of the magnetic materials used as Fe-Si based magnetic materials are electromagnetic steel sheets containing 3% of Si. Although people know that increasing the silicon content is a powerful way to improve performance, but suffer from high silicon steel can not be rolled. Recently, Nippon Steel Pipe Co., Ltd., a technology development division, used a refined ferrite phase of Fe-6.5Si alloy to make it easy to roll while using a special rolling method to successfully roll a magnet with a silicon content as high as 6.5%