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由于近代无线电电子工业的飞速发展,各种器件日趋微型化,要求大量的高导磁材料。由于高频或高速的使用环境,又对材料提出了一系列颇为苛刻的要求,例如彩色电视录相机之中心频率为9兆周,磁带与磁头相对速度38米/时,要求磁头用磁性材料在高频下有良好的磁特性,高的耐磨性,以达到传递信号灵敏,器件寿命长。目前北京钢铁研究院、上海钢研所及本所都在研制的Fe-Si-Al合金具有上述优越性,其工艺情况简介如下: 一、合金特点“Fe-Si-Al合金具有极高的耐磨性,高的电阻率 (约80～130μΩ-cm),并有
Due to the rapid development of modern wireless electronics industry, various devices are increasingly miniaturized, requiring a large number of high permeability materials. Due to the high-frequency or high-speed use of the environment, but also put forward a series of quite demanding materials, such as color TV video recorders center frequency of 9 trillion weeks, tape and head relative speed of 38 m / h, magnetic head At high frequencies have good magnetic properties, high wear resistance, in order to achieve the transfer of signal sensitivity, long device life. At present, Beijing Iron and Steel Research Institute, Shanghai Steel Research Institute and the Institute are in the development of Fe-Si-Al alloys with the above advantages, the process is summarized as follows: First, the alloy features "Fe-Si-Al alloy has a very high resistance Grinding, high resistivity (about 80 ~ 130μΩ-cm), and there