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METHOD FOR PRODUCING QUICKLY CRYSTALLIZED ALLOY FOR MAGNET 发明授权

2023-10-19 1860 359K 0

专利信息

申请日期 2025-07-12 申请号 RU2003137805
公开(公告)号 RU2255833C1 公开(公告)日 2005-07-10
公开国别 RU 申请人省市代码 全国
申请人 NEOMAKS KO LTD
简介 FIELD : production of quickly cooled magnetic alloy for making nano-composite magnets and magnets with binder used in electric motors, sensors and so on. SUBSTANCE : method comprises steps of preparing melt and forming quickly crystallized alloy. Composition of melt has common formula : (Fe1-m Tm) 100-x-y-z Qx Ry Mz where T is Co and(or) Ni; Q is B and/or) C; R - rare earth element; M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au, Pb; mole fractions x, y, z and m satisfy next inequalities : 10 at.% ≤ x ≤ 35 at.%; 2 at.% ≤ y ≤ 10 at.%; 0 at.% ≤ z ≤ 10 at.%; 0 ≤ m ≤ 0.5. At stage of producing quickly solidified alloy, melt is poured onto guiding member whose guiding surface is inclined relative to horizontal plane. Melt flowing down on guiding surface is fed through opening at least of one casting duct onto contact zone of cooling roll surface. EFFECT : possibility for providing uniform structure of magnetic alloy. 33 cl, 6 dwg, 3 tbl, 2 ex


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