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一、前言随着我国国防尖端技术,电子和仪表工业的迅速发展,对永磁材料提出了越来越高的要求。近几年来,我国在“独立自主、自力更生”的方针指引下。铸造铝镍钴永磁合金在科研和生产上都有了很大的进展。为了获得铝镍钴合金的更高性能,目前在许多科研生产部门已经掌握了制取具有柱状晶结构的铸造工艺。在制取这种晶体择优取向的高
I. Introduction With the rapid development of China’s defense-leading technology, electronics and instrumentation industry, higher and higher requirements have been put forward on permanent magnetic materials. In recent years, our country is guided by the principle of “independence, self-reliance”. Cast aluminum nickel-cobalt permanent magnet alloy in scientific research and production have made great progress. In order to obtain the higher performance of Alnico, many research and production departments have now mastered the production of a columnar crystal structure of the casting process. The preferred orientation of this crystal is high