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公开(公告)号：US5167914A
公开(公告)日：1992-12-01
申请号：US704100
申请日：1991-05-22
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , H01F1/0571 , H01F1/0572
摘要： An (Fe, Co)-B-R tetragonal type magnet having a high corrosion resistance, which has a boundary phase stabilized by Co and Al against corrosion, and which consists essentially of:0.2-3.0 at % Dy and 12-17 at % of the sum of Nd and Dy;5-10 at % B;0.5-13 at % Co;0.5-4 at % Al; andthe balance being at least 65 at % Fe.0.1-1.0 at % of Ti and/or Nb may be present. Alloy powders therefor can be also stabilized.
摘要翻译： 具有高耐蚀性的（Fe，Co）-BR四方型磁体，其具有由Co和Al稳定的边界相对于腐蚀，并且其基本上由以下组成：0.2-3.0原子％的Dy和12-17at％的 Nd和Dy的总和; 5-10％B; 0.5-13 at％Co; 0.5-4at％Al; 余量至少为65原子％Fe。 可以存在0.1-1.0at％的Ti和/或Nb。 合金粉末也可以稳定。
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公开(公告)号：US5230749A
公开(公告)日：1993-07-27
申请号：US728037
申请日：1991-07-08
IPC分类号： H01F1/057
CPC分类号： H01F1/0577
摘要： A magnetically anisotropic sintered permanent magnet of the FeCoBR system (R is sum of R.sub.1 and R.sub.2) wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2, and the balance of other rare earth elements exclusive of R.sub.1,said system consisting essentially of, by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B up to 35% of Co, and the balance being Fe. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W) may be present.
摘要翻译： FeCoBR系的磁各向异性烧结永磁体（R为R1和R2的和），其中：R1为Dy，Tb，Gd，Ho，Er，Tm和/或Yb，R2包含80原子％以上的Nd， Pr在R2中的余量以及不包括R1的其它稀土元素的余量，所述体系基本上由原子百分比组成，R1为0.05〜5％，R为12.5〜20％，B〜4％〜20％ 的Co，余量为Fe。 可以存在附加元素M（Ti，Zr，Hf，Cr，Mn，Ni，Ta，Ge，Sn，Sb，Bi，Mo，Nb，Al，V，W）。
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公开(公告)号：US4859255A
公开(公告)日：1989-08-22
申请号：US165371
申请日：1988-02-29
CPC分类号： H01F1/0577
摘要： A magnetically anisotropic sintered permanent magnet of the FeCoBR system (R is sum of R.sub.1 and R.sub.2) wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2, and the balance of other rare earth elements exclusive of R.sub.1,said system consisting essentially of, by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B up to 35% of Co, and the balance being Fe. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W) may be present.
摘要翻译： FeCoBR系的磁各向异性烧结永磁体（R为R1和R2的和），其中：R1为Dy，Tb，Gd，Ho，Er，Tm和/或Yb，R2包含80原子％以上的Nd， Pr在R2中的余量以及不包括R1的其它稀土元素的余量，所述体系基本上由原子百分比组成，R1为0.05〜5％，R为12.5〜20％，B〜4％〜20％ 的Co，余量为Fe。 可以存在附加元素M（Ti，Zr，Hf，Cr，Mn，Ni，Ta，Ge，Sn，Sb，Bi，Mo，Nb，Al，V，W）。
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公开(公告)号：US4601875A
公开(公告)日：1986-07-22
申请号：US532471
申请日：1983-09-15
CPC分类号： C22C1/0441 , H01F1/0577 , Y10T29/49076
摘要： Permanent magnetic materials of the Fe-B-R type are produced by:preparing an metallic powder having a mean particle size of 0.3-80 microns and a composition of, by atomic percent, 8-30% R (rare earth elements), 2-28% B, and the balance Fe, compacting, sintering at a temperature of 900-1200 degrees C., and aging at a temperature ranging from 350 degrees C. to the temperature for sintering. Co and additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) may be present.
摘要翻译： 通过以下方式制备Fe-BR型永久磁性材料：制备平均粒径为0.3-80微米的金属粉末，原子百分比为8-30％的R（稀土元素），2-28 ％B，余量为Fe，压实，烧结温度为900-1200摄氏度，并在350摄氏度至烧结温度下老化。 可以存在Co和附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。
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公开(公告)号：US5110377A
公开(公告)日：1992-05-05
申请号：US523338
申请日：1990-05-14
CPC分类号： H01F1/0577 , B22F3/24 , C22C1/0441
摘要： A process for producing permanent magnet materials, which comprises the steps of:forming an alloy powder having a mean particle size of 0.3-80 microns and composed of, in atomic percentage, 8-30% R (provided that R is at least one of rare earth elements including Y), 2-28% B, and the balance being Fe and inevitable impurities,sintering the formed body at a temperature of 900.degree.-1200.degree. C.,subjecting the sintered body to a primary heat treatment at a temperature of 750.degree.-1000.degree. C.,then cooling the resultant body to a temperature of no higher than 680.degree. C. at a cooling rate of 3.degree.-2000.degree. C./min, andfurther subjecting the thus cooled body to a secondary heat treatment at a temperature of 480.degree.-700.degree. C.35 MGOe, 40 MGOe or higher energy product can be obtained with specific compositions.
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公开(公告)号：US4975129A
公开(公告)日：1990-12-04
申请号：US249654
申请日：1988-09-27
CPC分类号： H01F1/0577
摘要： A magnetically anisotropic sintered permanent magnet of the FeBR system in which R is sum of R.sub.1 and R.sub.2 wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2 and the balance of at least one of other rare earth elements exclusive of R.sub.1,said system comprising by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B, and the balance being Fe with impurities. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W,) may be present.
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公开(公告)号：US4826546A
公开(公告)日：1989-05-02
申请号：US85226
申请日：1987-08-13
CPC分类号： H01F1/0577 , B22F3/24 , C22C1/0441
摘要： A process for producing permanent magnet materials, which comprises the steps of:forming an alloy powder having a mean particle size of 0.3-80 microns and composed of, in atomic percentage, 8-30% R (provided that R is at least one of rare earth elements including Y), 2-28% B, and the balance being Fe and inevitable impurities,sintering the formed body at a temperature of 900.degree.-1200.degree. C.,subjecting the sintered body to a primary heat treatment at a temperature of 750.degree.-1000.degree. C.,then cooling the resultant body to a temperature of no higher than 680.degree. C. at a cooling rate of 3.degree.-2000.degree. C./min, andfurther subjecting the thus cooled body to a secondary heat treatment at a temperature of 480.degree.-700.degree. C.35 MGOe, 40 MGOe or higher energy product can be obtained with specific compositions.
摘要翻译： 一种生产永磁材料的方法，包括以下步骤：形成平均粒度为0.3-80微米的合金粉末，原子百分比为8-30％R（条件是R为至少一种 包括Y）的稀土元素，2-28％B，余量为Fe和不可避免的杂质，在900-112℃的温度下烧结成形体，使烧结体在温度下进行一次热处理 750℃-1000℃，然后以3℃-2000℃/ min的冷却速度将所得体冷却至不高于680℃的温度，并进一步将如此冷却的体进行二次 在480°-700℃的温度下进行热处理。可以获得具有特定组成的35MGOe，40MGOe或更高能量的产品。
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公开(公告)号：US4773950A
公开(公告)日：1988-09-27
申请号：US532473
申请日：1983-09-15
CPC分类号： H01F1/0577
摘要： A magnetically anisotropic sintered permanent magnet of the FeBR system in which R is sum of R.sub.1 and R.sub.2 wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2 and the balance of at least one of other rare earth elements exclusive of R.sub.1,said system comprising by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B, and the balance being Fe with impurities. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W,) may be present.
摘要翻译： 一种FeBR系的磁各向异性烧结永磁体，其中R为R1和R2之和，其中：R1为Dy，Tb，Gd，Ho，Er，Tm和/或Yb，R2包含80原子％以上的Nd和 Pr中的至少一种，余量为除R1以外的其他稀土元素中的至少一种，所述体系包含原子百分比为0.05〜5％的R1，12.5〜20％的R，4〜20％的B，余量 是杂质的铁。 可以存在附加元素M（Ti，Zr，Hf，Cr，Mn，Ni，Ta，Ge，Sn，Sb，Bi，Mo，Nb，Al，V，W）。
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公开(公告)号：US5194098A
公开(公告)日：1993-03-16
申请号：US876902
申请日：1992-04-30
申请人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
发明人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
CPC分类号： H01F1/057 , C22C1/0441 , H01F1/0577
摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of an Fe-B-R intermetallic compound which may be a tetragonal system, wherein at least 50 at % of R consists of Nd and/or Pr, and anisotropic sintered permanent magnets consisting essentially of 8-30 at % R, 2028 at %, B and the balance being Fe with impurities. These magnetic materials and permanent magnets may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf), thus providing Fe-B-R-M type materials and magnets.
摘要翻译： Fe，B和R（稀土元素）的磁性材料，其具有可以是四方晶系的Fe-BR金属间化合物的主相，其中至少50原子％的R由Nd和/或Pr组成，并且各向异性烧结 基本上由8-30at％R，2028at％，B组成的永磁体，余量为Fe和杂质。 这些磁性材料和永磁体可以含有附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf） 型材和磁铁。
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公开(公告)号：US4770723A
公开(公告)日：1988-09-13
申请号：US13165
申请日：1987-02-10
申请人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
发明人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
CPC分类号： C22C1/0441 , H01F1/057 , H01F1/0577
摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of Fe--B--R intermetallic compound(s) of tetragonal system, and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe--B--R--M type materials and magnets.
摘要翻译： 包含具有四方晶系的Fe-BR金属间化合物的主相的Fe，B和R（稀土元素）的磁性材料和基本上由原子百分比组成的烧结各向异性永久磁体，其含量为8-30％R 至少一种稀土元素包括Y），2-28％B，余量为Fe与杂质。 这些可以含有Fe-B-R-M型材料和磁铁的附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。
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