MANUFACTURE OF OXIDE PERMANENT MAGNET WITH HIGH IN

更新时间:2023-07-02 06:26:46 阅读: 评论:0

专利名称:MANUFACTURE OF OXIDE PERMANENT MAGNET WITH HIGH INSULATION
简约简历
阴超怎么检查>确定位置教学设计>极乐空间电影RESISTANCE
发明人:HONDA KEIICHI
申请号:JP10689981
世界上最长的路
保甲法申请日:19810710
公开号:JPS589303A同学聚会祝福语
公开日:
王羲之练字墨池的故事19830119
专利内容由知识产权出版社提供
摘要:PURPOSE:To make it possible to obtain excellent magnetism and high insulation resistance, by after mixing, sintering provisionally and crushing a mixture of BaO or SrO and Fe2O3 materials and adding to the mixture a Ba or Sr compound and then forming and sintering them. CONSTITUTION:In manufacturing oxide permanent magnets of magnetoplumbite type with a chemical formula: MO.Fe2O3 (M is Ba or Sr, and n is mol ratio by 5-6) their main ingredients and auxiliary ingredient added as needed are weighted, mixed, sintered provisionally and crushed. Then, after a Ba or Sr compound is added to the mixture, it is formed and sintered. Between Fe2O3 or Fe<2+> that is thereby left and a newly added compound of Ba or Sr solid pha reaction is developed to obtain a magnetoplumbite pha, in which the Fe2O3 ingredient is made as little as possible for much improving the insulation resistance of the sintered mixture. It is preferable to add the Ba or Sr compount in the amount of 0.05-3.0wt% of the ferrite.
申请人:TOUHOKU KINZOKU KOGYO KK
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