日语字典
专利名称：MANUFACTURE OF OXIDE PERMANENT MAGNET WITH HIGH INSULATION
无论如何的英文
RESISTANCE
发明人：HONDA KEIICHIgolgo
外文参考文献格式申请号：JP10689981cabrio
航行英文申请日：19810710
公开号：JPS589303A
公开日：
广州礼仪公司19830119
专利内容由知识产权出版社提供
美国之声中文网摘要：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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