最近几年,电工磁性材料方面的进步与其生产工艺沿着两个相互竞争方向的发展密切相关。一方面是合金冶炼、热轧及冷轧与最后阶段的热处理相结合的传统方法。另一方面是利用向高速旋转的冷却辊表面浇铸合金熔液,获得迅速冷却的带材的方法。这两种方法竞争开发出具有高磁感、低磁损的新型电工材料,使传统的含Si3％的硅钢得以完善。 In recent years, advances in electrical magnetic materials have been closely linked to the development of their manufacturing processes in two competing directions. On the one hand the traditional method of combining smelting, hot rolling and cold rolling with the last stage of heat treatment. On the other hand, it is a method of obtaining a rapidly cooled ribbon by casting an alloy melt on the surface of a cooling roll rotating at a high speed. These two methods compete to develop a new type of electrical material with high magnetic induction and low magnetic loss so that the conventional Si3% -containing silicon steel can be improved.