专利名称：MANUFACTURE OF OXIDE PERMANENT MAGNET WITH HIGH INSULATION
辩论赛pptRESISTANCE
发明人：HONDA KEIICHI
申请号：JP10689981
申请日：19810710别哭了宝贝dj
公开号：JPS589303A
公开日：
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疫情下的中国
英语建议信19830119
专利内容由知识产权出版社提供肠组词组
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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.
写作业英文
申请人：TOUHOKU KINZOKU KOGYO KK
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