发明名称 LOW-COST RARE EARTH MAGNET
摘要 PURPOSE:To reduce manufacturing cost by using a Nd-Pr-Tm alloy manufactured by reducing neodymium (Nd), praseodymium (Pr) and an oxide of a transition metal (Tm) through a molten-salt electrolytic process as a raw material for a rare earth magnet. CONSTITUTION:Fe, Ni, Co, Cu, Zr are added to a Nd-Pr-Tm alloy manufactured by adding an oxide of a transition metal (Tm) to a mixture, in which each oxide of neodymium (Nd) and praseodymium (Pr) is not separated and the ratio of these mixture of Nd/Pr is made constant, and through a molten-salt electrolytic process to which crystal stone, etc. are added, and slight Nd and Fr for adjusting a composition are added lastly. The mixture is dissolved in an argon gas atmosphere, and a sheet is manufactured by using a twin roll. Epoxy resin is added and kneaded to a material obtained by crushing the sheet acquired, pressed in a magnetic field, and cured. Accordingly, a permanent magnet, cost thereof is low, can be obtained.
申请公布号 JPS6086805(A) 申请公布日期 1985.05.16
申请号 JP19830195854 申请日期 1983.10.19
申请人 SUWA SEIKOSHA KK 发明人 TOMITA TADAHARU
分类号 C22C38/00;H01F1/053;H01F1/08 主分类号 C22C38/00
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