公开(公告)号：US07465363B2

公开(公告)日：2008-12-16

申请号：US10540345

申请日：2004-01-28

申请人： Atsushi Sakamoto ,  Makoto Nakane ,  Hideki Nakamura ,  Akira Fukuno

发明人： Atsushi Sakamoto ,  Makoto Nakane ,  Hideki Nakamura ,  Akira Fukuno

IPC分类号： H01F1/058 ,  H01F1/059

CPC分类号： H01F1/0558 ,  C22C38/001 ,  C22C38/005 ,  C22C38/02 ,  C22C38/10 ,  C22C38/14 ,  H01F1/058 ,  H01F1/0593

摘要： A single phase consisting of a ThMn12 phase can be obtained by having the composition thereof represented by a general formula R(Fe100-y-wCowTiy)xSizAv (in the general formula, R is at least one element selected from rare earth elements (here the rare earth elements signify a concept inclusive of Y), Nd accounts for 50 mol % or more of R, and A is N and/or C) in which the molar ratios in the general formula are such that x=10 to 12.5, y=(8.3−1.7×z) to 12.3, z=0.1 to 2.3, v=0.1 to 3 and w=0 to 30, and the relation (Fe+Co+Ti+Si)/R>12 is satisfied.

摘要翻译： 由ThMn12相组成的单相可以通过使其组成由通式R（Fe100-y-wCowTiy）xSizAv表示（在通式中，R是选自稀土元素中的至少一种元素（这里是 稀土元素表示包括Y）的概念，Nd占R的50摩尔％以上，A是N和/或C），其中通式中的摩尔比使得x = 10〜12.5，y =（8.3-1.7×z）〜12.3，z = 0.1〜2.3，v = 0.1〜3，w = 0〜30，满足关系式（Fe + Co + Ti + Si）/R≥12。

公开(公告)号：US07297213B2

公开(公告)日：2007-11-20

申请号：US10745834

申请日：2003-12-24

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

IPC分类号： H01F1/057 ,  H01F1/058

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  H01F1/058

摘要： An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %

摘要翻译： 铁基稀土合金磁体具有由以下通式表示的组成：（Fe 1-m M t）100-xy z Q 其中T是选自Co和Ni中的至少一种元素;其中T是选自Co和Ni中的至少一种元素; Q是选自B和C中的至少一种元素; R是至少一种稀土元素，基本上不含La和Ce; 并且M是选自Ti，Zr和Hf中的至少一种金属元素，并且始终包括Ti。 在该公式中，摩尔分数x，y，z和m满足以下不等式：10 at％

公开(公告)号：US20070160863A1

公开(公告)日：2007-07-12

申请号：US10589360

申请日：2005-06-28

申请人： Ryuji Hamada ,  Takehisa Minowa

发明人： Ryuji Hamada ,  Takehisa Minowa

IPC分类号： H01F1/00 ,  B22F5/00

CPC分类号： H01F41/026 ,  C23C18/04 ,  C23C18/1212 ,  C23C18/122 ,  C23C18/1241 ,  C23C18/1254 ,  C23C18/127 ,  C23C24/08 ,  C23C24/085 ,  C23C26/00 ,  H01F1/0577 ,  H01F1/058 ,  H01F7/02 ,  Y10T428/12014

摘要： A corrosion resistant rare earth magnet is obtained by (i) applying a treating liquid comprising a flaky fine powder and a metal sol to a surface of R—T—M—B rare earth permanent magnet and then heating to form a composite film of flaky fine powder/metal oxide on the magnet surface; (ii) applying a treating liquid comprising a flaky fine powder and a silane and/or a partial hydrolyzate thereof to a surface of R—T—M—B rare earth permanent magnet and then heating a flaky fine powder/silane and/or partially hydrolyzed silane coating to form a composite film on the magnet surface; or (iii) applying a treating liquid comprising a flaky fine powder and an alkali silicate to a surface of R—T—M—B rare earth permanent magnet and then heating to form a composite film of flaky fine powder/alkali silicate glass on the magnet surface.

摘要翻译： 通过（i）将包含片状细粉末和金属溶胶的处理液施加到RTMB稀土永磁体的表面，然后加热形成片状细粉末/金属氧化物复合膜，得到耐腐蚀性稀土磁铁 磁铁表面; （ii）将包含片状细粉末和硅烷和/或其部分水解产物的处理液施加到RTMB稀土永磁体的表面，然后加热片状细粉/硅烷和/或部分水解的硅烷涂层，形成 磁铁表面复合膜; 或者（iii）在R-T-M-B稀土类永久磁铁的表面上涂敷含有薄片状细粉末和碱性硅酸盐的处理液，然后加热，形成片状的细粉末/碱性硅酸盐玻璃的复合膜。

公开(公告)号：US20070125452A1

公开(公告)日：2007-06-07

申请号：US11606088

申请日：2006-11-30

申请人： Koichi Hirota ,  Takehisa Minowa

发明人： Koichi Hirota ,  Takehisa Minowa

IPC分类号： H01F1/057 ,  H01F1/058

CPC分类号： H01F1/0577 ,  H01F1/0573 ,  H01F1/058 ,  H01F41/0273 ,  H01F41/0293

摘要： An R-T-B—C rare earth sintered magnet (R═Ce, Pr, Nd, Tb, or Dy; T=Fe) is obtained by mixing an R-T-B—C magnet matrix alloy with an R fluoride and an R-rich R-T-B—C sintering aid alloy, followed by pulverization, compaction and sintering. The sintered structure consists of an R2T14B type crystal primary phase and a grain boundary phase. The grain boundary phase consists essentially of 40-98 vol % of R—O1-x—F1+2x and/or R—Fy, 1-50 vol % of R—O, R—O—C or R—C compound phase, 0.05-10 vol % of R-T phase, 0.05-20 vol % of B-rich phase or M-B2 phase (M=Ti, V, Cr, Zr, Nb, Mo, Hf, Ta or W), and the balance of an R-rich phase.

摘要翻译： 将RTBC稀土烧结磁体（R-Ce，Pr，Nd，Tb或Dy; T = Fe）通过将RTBC磁体基质合金与R氟化物和富R的RTBC烧结助剂合金混合，然后粉碎 ，压实和烧结。 该烧结结构由R 2 S 14 N 14 B型晶体初相和晶界相组成。 晶界相基本上由40-98％（重量）的RO 1-x 1 -F 1 + 2 +和/或RF Y 1， -50体积％的RO，ROC或RC化合物相，0.05-10体积％的RT相，0.05-20体积％的富B相或MB 2相（M = Ti，V， Cr，Zr，Nb，Mo，Hf，Ta或W），余量为富R相。

公开(公告)号：US06818041B2

公开(公告)日：2004-11-16

申请号：US09952056

申请日：2001-09-14

申请人： Hiroyuki Tomizawa ,  Yuji Kaneko

发明人： Hiroyuki Tomizawa ,  Yuji Kaneko

IPC分类号： B22F100

CPC分类号： H01F1/0574 ,  H01F1/058

摘要： Magnetic alloy powder for a permanent magnet contains: R of about 20 mass percent to about 40 mass percent (R is Y, or at least one type of rare earth element); T of about 60 mass percent to about 79 mass percent (T is a transition metal including Fe as a primary component); and Q of about 0.5 mass percent to about 2.0 mass percent (Q is an element including B (boron) and C (carbon)). The magnetic alloy powder is formed by an atomize method, and the shape of particles of the powder is substantially spherical. The magnetic alloy powder includes a compound phase having Nd2Fe14B tetragonal structure as a primary composition phase. A ratio of a content of C to a total content of B and C is about 0.05 to about 0.90.

摘要翻译： 用于永磁体的磁性合金粉末包含：R为约20质量％至约40质量％（R为Y或至少一种稀土元素）; T为约60质量％至约79质量％（T为包含Fe为主要成分的过渡金属）; 和Q为约0.5质量％至约2.0质量％（Q为包含B（硼）和C（碳）的元素）。 磁性合金粉末通过雾化法形成，粉末的形状基本上是球形的。 磁性合金粉末包括具有Nd 2 Fe 14 B四方晶系的化合物相作为主要组成相。 C与B和C的总含量之比为约0.05至约0.90。

公开(公告)号：US06790296B2

公开(公告)日：2004-09-14

申请号：US09986390

申请日：2001-11-08

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  B22F2009/041 ,  B22F2998/10 ,  H01F1/0571 ,  H01F1/0578 ,  H01F1/0579 ,  H01F1/058 ,  B22F9/008 ,  B22F9/04 ,  B22F9/007

摘要： A method of making a material alloy for an iron-based rare earth magnet includes the step of forming a melt of an alloy with a composition of (Fe1-mTm)100-x-y-z-n(B1-pCp)xRyTizMn. T is Co and/or Ni; R is at least one element selected from Y (yttrium) and the rare earth elements; and M is at least one element selected from Al, Si, V, Cr, Mn, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, wherein the following inequalities are satisfied: 10

摘要翻译： 一种制备铁基稀土磁体的材料合金的方法包括以（Fe1-mTm）100-x-y-z-n（B1-pCp）xRyTizMn的组成形成合金熔体的步骤。 T是Co和/或Ni; R是选自Y（钇）和稀土元素中的至少一种元素; 并且M是选自Al，Si，V，Cr，Mn，Ni，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb中的至少一种元素，其中以下 满足不等式：10

公开(公告)号：US20040168747A1

公开(公告)日：2004-09-02

申请号：US10481015

申请日：2003-12-17

发明人： Hiroyuki Tomizawa ,  Yuji Kaneko

IPC分类号： H01F001/058

CPC分类号： H01F1/058 ,  H01F1/0578 ,  H01F41/0266

摘要： The step of preparing a rapidly solidified alloy by rapidly quenching a melt of an R-T-B-C based rare-earth alloy (where R is at least one of the rare-earth elements including Y, T is a transition metal including iron as its main ingredient, B is boron, and C is carbon) and the step of thermally treating and crystallizing the rapidly solidified alloy are included. The step of thermally treating results in producing a first compound phase with an R2Fe14B type crystal structure and a second compound phase having a diffraction peak at a site with an interplanar spacing d of 0.295 nm to 0.300 nm (i.e., where 2nullnull30 degrees). An intensity ratio of the diffraction peak of the second compound phase to that of R2Fe14B type crystals representing a (410) plane is at least 10%. The present invention provides an R-T-B-C based rare-earth alloy magnetic material, including carbon (C) as an indispensable element but exhibiting excellent magnetic properties, and makes it possible to recycle rare-earth magnets.

摘要翻译： 通过快速淬火RTBC型稀土合金（其中R是包括Y，T中的至少一种稀土元素）的熔体制备快速固化的合金的步骤是以铁为主要成分的过渡金属B 是硼，C是碳），并且包括热处理和结晶快速固化的合金的步骤。 热处理的步骤导致产生具有R2Fe14B型晶体结构的第一化合物相和在具有0.295nm至0.300nm的晶面间距d的位置具有衍射峰的第二化合物相（即，其中2θ= 30度） 。 第二化合物相的衍射峰与代表（410）面的R2Fe14B型晶体的衍射峰的强度比为至少10％。 本发明提供了一种R-T-B-C系稀土合金磁性材料，其包含碳（C）作为不可缺少的元素，但具有优异的磁特性，并且可以回收稀土类磁体。

公开(公告)号：US20040168746A1

公开(公告)日：2004-09-02

申请号：US10481025

申请日：2003-12-17

发明人： Hiroyuki Tomizawa ,  Koji Nakahara ,  Yuji Kaneko

IPC分类号： H01F001/058

CPC分类号： H01F1/057 ,  H01F1/0578 ,  H01F1/058 ,  H01F41/0253

摘要： The present invention is a production method of an R-T-B-C rare earth alloy (R is at least one element selected from the group consisting of rare earth elements and yttrium, T is a transition metal including iron as a main component, B is boron, and C is carbon). An R-T-B bonded magnet containing a resin component, or an R-T-B sintered magnet with a resin film formed on the surface thereof is prepared, and a solvent alloy containing a rare earth element R and a transition metal element T is prepared. Thereafter, the R-T-B bonded magnet is molten together with the solvent alloy. In this way, a rare earth alloy can be recovered from a spent bonded magnet or a defective one generated in a production process stage, and a rapidly quenched alloy magnet can be obtained. As a result, magnet powder is recovered from the R-T-B magnet, and the recycling of a magnet including a resin component can be realized.

摘要翻译： 本发明是RTBC稀土类合金的制造方法（R为选自稀土元素和钇中的至少一种元素，T为以铁为主要成分的过渡金属，B为硼，C为 是碳）。 制备含有树脂组分的R-T-B粘结磁体或其表面上形成有树脂膜的R-T-B烧结磁体，并制备含有稀土元素R和过渡金属元素T的溶剂合金。 此后，R-T-B粘结磁体与溶剂合金一起熔融。 以这种方式，可以从废粘结磁体或在生产工艺阶段产生的缺陷合金中回收稀土合金，并且可以获得快速淬火的合金磁体。 结果，从R-T-B磁体中回收磁铁粉末，能够实现包含树脂成分的磁体的再循环。

公开(公告)号：US06706124B2

公开(公告)日：2004-03-16

申请号：US09863902

申请日：2001-05-24

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  H01F1/058

摘要： An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %

摘要翻译： 铁系稀土类合金磁铁具有由通式（Fe1-mTm）100-x-y-zQxRyMz表示的组成，其中T为选自Co和Ni中的至少一种元素; Q是选自B和C中的至少一种元素; R是至少一种稀土元素，基本上不含La和Ce; 并且M是选自Ti，Zr和Hf中的至少一种金属元素，并且始终包括Ti。 在该公式中，摩尔分数x，y，z和m满足以下不等式：10 at％

公开(公告)号：US20040025974A1

公开(公告)日：2004-02-12

申请号：US10397713

申请日：2003-03-26

发明人： Don Lee ,  John Stanley Hilton ,  Baozhi Cui ,  Shiqiang Liu

IPC分类号： H01F001/055

CPC分类号： B82Y25/00 ,  H01F1/0551 ,  H01F1/0556 ,  H01F1/0558 ,  H01F1/0571 ,  H01F1/0576 ,  H01F1/0578 ,  H01F1/0579 ,  H01F1/058 ,  H01F1/059 ,  H01F41/0266

摘要： Nanocrystalline and nanocomposite rare earth permanent magnet materials and methods for making the magnets are provided. The magnet materials can be isotropic or anisotropic and do not have a rare-earth rich phase. The magnet materials comprise nanometer scale grains and possesses a potential high maximum energy product, a high remancence, and a high intrinsic coercivity. The magnet materials having these properties are produced by using methods including magnetic annealing and rapid heat processing.

摘要翻译： 提供了纳米晶体和纳米复合稀土永磁材料及其制造方法。 磁体材料可以是各向同性的或各向异性的，并且不具有富稀土相。 磁体材料包括纳米尺度的晶粒，并且具有潜在的高最大能量积，高余辉和高固有矫顽力。 具有这些特性的磁体材料通过使用包括磁性退火和快速热处理的方法来制备。