公开(公告)号：US20030136468A1

公开(公告)日：2003-07-24

申请号：US10203023

申请日：2002-08-05

发明人： Hirokazu Kanekiyo ,  Satoshi Hirosawa

IPC分类号： B22D011/00 ,  H01F001/055

CPC分类号： B82Y25/00 ,  B22D11/0611 ,  C22C1/0441 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0571 ,  H01F1/0578 ,  H01F1/0579 ,  H01F1/058

摘要： A melt of an iron-based rare earth material alloy, represented by (Fe1-mTm)100-x-y-zQxRyMz, is prepared. T is Co and/or Ni; Q is B and/or C; R is selected from Y (yttrium) and the rare earth elements; M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb; 10nullxnull30 at %; 2%nully

摘要翻译： 制备由（Fe1-mTm）100-x-y-zQxRyMz表示的铁基稀土材料合金的熔体。 T是Co和/或Ni; Q是B和/或C; R选自Y（钇）和稀土元素; M选自Al，Si，Ti，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb; 10 <= x <= 30 at％; 2％<= y <10 at％; 0 <= z <= 10 at％，0 <= m <= 0.5。 熔体被供给到引导件上以在其上形成熔体流，并将熔体移动到熔融/冷却辊接触区域上，在该区域中，熔体被冷却辊快速冷却以形成快速固化的合金。 待进料到导向器上的熔体的氧浓度以质量百分比控制在约3,000ppm或更低。

公开(公告)号：US20030217786A1

公开(公告)日：2003-11-27

申请号：US10360753

申请日：2003-02-10

申请人： TDK CORPORATION

发明人： Teruo Mori ,  Shiro Tomizawa

IPC分类号： H01F001/055

CPC分类号： H01L41/20

摘要： Restoring magnetostriction characteristics without causing fusion of rod. By performing heat treatment on a giant magnetostrictive material within the temperature range of 750 to 860null C., working distortion is removed while bleeding of an R-rich phase on a rod surface is prevented.

摘要翻译： 恢复磁致伸缩特性而不引起杆的熔化。 通过在750〜860℃的温度范围内对巨磁致伸缩材料进行热处理，可以防止工作变形，同时防止在棒表面上析出富R相。

公开(公告)号：US20020011279A1

公开(公告)日：2002-01-31

申请号：US09930281

申请日：2001-08-16

发明人： Shinya Sakurada ,  Tomohisa Arai ,  Masami Okamura ,  Keisuke Hashimoto ,  Takahiro Hirai

IPC分类号： H01F001/055

CPC分类号： H01F1/059

摘要： A magnetic material has a composition expressed by the following general formula, general formula: null(R1XR21-X)YBZT1-Y-Znull1-QNQ (where, R1 is at least one kind of element selected from rare earth elements, R2 is at least one kind of element selected from Zr, Hf, Ti and Sc, T is at least one kind of element selected from Fe and Co, and X, Y, Z and Q designate numerical values satisfying 0.5nullX

摘要翻译： 磁性材料具有由以下通式表示的组成：通用式： in-line-formula> {（R1XR21-X）YBZT1-YZ} 1-QNQ

公开(公告)号：US20030037845A1

公开(公告)日：2003-02-27

申请号：US10266245

申请日：2002-10-08

发明人： Akira Arai ,  Hiroshi Kato

IPC分类号： H01F001/055

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  Y10S977/775 ,  Y10S977/777 ,  Y10S977/838

摘要： Disclosed herein is magnetic powder which can provide a magnet having a high magnetic flux density and excellent magnetizability and reliability especially excellent heat resistance property (heat stability). The magnetic powder is composed of an alloy composition represented by Rx(Fe1-yCoy)100-x-z-wBzSi(where R is at least one kind of rare-earth element, x is 8.1-9.4 at %, y is 0-0.30, z is 4.6-6.8 at %, and w is 0.2-3.0 at %), the magnetic powder being constituted from a composite structure having a soft magnetic phase and a hard magnetic phase, wherein the magnetic powder has characteristics in which, when the magnetic powder is formed into an isotropic bonded magnet by mixing with a binding resin and then molding it, the irreversible susceptibility (nullirr which is measured by using an intersection of a demagnetization curve in the J-H diagram representing the magnetic characteristics at the room temperature and a straight line which passes the origin in the J-H diagram and has a gradient nullJ/H of null3.8null10null6 H/m as a starting point is less than 5.0null10null7 H/m, and the intrinsic coercive force (HCJ) of the magnet at the room temperature is in the range of 406-717 kA/m.

摘要翻译： 这里公开了可提供具有高磁通密度和优异的磁化性和可靠性，特别是优异的耐热性（热稳定性）的磁体的磁性粉末。 磁性粉末由Rx（Fe1-yCoy）100-xz-wBzSi（其中R是至少一种稀土元素，x为8.1-9.4at％，y为0-0.30， z为4.6〜6.8原子％，w为0.2〜3.0原子％），磁性粉末由具有软磁性相和硬磁性相的复合结构构成，其特征在于， 粉末通过与粘合树脂混合然后成型而形成为各向同性粘结磁体，其不可逆磁化率（通过使用表示室温下的磁特性的JH图中的退磁曲线与直线 在JH图中通过原点并具有-3.8×10-6H / m的梯度xJ / H作为起始点的线小于5​​.0×10 -7 H / m，并且该固有矫顽力（HCJ）为 磁铁在室温下在406-717 kA / m的范围内。

公开(公告)号：US20020017338A1

公开(公告)日：2002-02-14

申请号：US09901104

申请日：2001-07-10

发明人： Gang Li

IPC分类号： H01F001/055

CPC分类号： B82Y25/00 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/0579 ,  H01F1/058

摘要： A rapidly solidified alloy is produced by quenching and solidifying a melt of an alloy having a general formula represented by (Fe1-mTm)100-x-y-zQxRyMz where T denotes at least one kind of element selected from the group consisting of Co and Ni, Q denotes at least one kind of element selected from the group consisting of B and C, R denotes at least one kind of rare earth element, and M denotes at least one kind of element selected from the group consisting of Nb and Mo, and the mole fractions x, y, z, and m respectively satisfy 2nullxnull28 (atom %), 8nullynull30 (atom %), 0.1nullz

摘要翻译： 通过淬火和固化具有由（Fe1-mTm）100-xy-zQxRyMz表示的通式的合金的熔体来制造快速凝固的合金，其中T表示选自Co和Ni中的至少一种元素， Q表示选自B和C中的至少一种元素，R表示至少一种稀土元素，M表示选自Nb和Mo中的至少一种元素， 摩尔分数x，y，z和m分别满足2 <= x <= 28（原子％），8 <= y <= 30（原子％），0.1 <= z <1.0（原子％）， = m <= 0.5（原子％）。 然后将快速凝固的合金粉碎并烧结以制造稀土永磁体。 将冷却速度控制在102K /秒至104K /秒的范围内，使得合金结构均匀，并且添加的元素M均匀分散。

公开(公告)号：US20040244876A1

公开(公告)日：2004-12-09

申请号：US10494677

申请日：2004-05-03

发明人： Kenji Konishi ,  Kazumasa Shintani

IPC分类号： H01F001/055

CPC分类号： H01F1/0558 ,  C22C1/0441 ,  H01F1/0555 ,  H01F1/0557

摘要： The present invention relates to a SmnullCo based magnet alloy useful as a raw material for producing magnets having high magnetic properties, such as sintered or bonded magnets, methods for producing such an alloy, and sintered or bonded magnets having excellent corrosion resistance and high magnetic properties, such as high coercivity and good squareness. The magnetic alloy is composed of an alloy represented by the formula RM with 32.5 to 35.5 wt % R such as Sm and the balance of M such as Co, wherein ratio (B/A) of the X-ray diffraction intensity (B) corresponding to the (119) plane of R2M7 phase to the X-ray diffraction intensity (A) corresponding to the (111) plane of RM5 phase is not higher than 0.1.

摘要翻译： 本发明涉及可用作生产具有高磁性的磁体的原料的Sm-Co基磁体合金，例如烧结或粘结磁体，制造这种合金的方法，以及具有优异的耐腐蚀性和高的烧结或粘结磁体 磁性，如矫顽力高，矩形度好。 磁性合金是由式RM表示的合金，32.5〜35.5％（重量）的R，如Sm，剩余的M，如Co，其中相应的X射线衍射强度（B）的比例（B / A） 到相对于RM5相的（111）面的X射线衍射强度（A）相对于R2M7相的（119）面，不高于0.1。

公开(公告)号：US20030190250A1

公开(公告)日：2003-10-09

申请号：US10363381

申请日：2003-02-27

发明人： Teruo Mori ,  Takeshi Nomura ,  Seigo Tokoro ,  Naomichi Umehara

IPC分类号： B22F003/10 ,  H01F001/055

CPC分类号： C22C28/00 ,  B22F3/1007 ,  B22F3/101 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0441 ,  H01F1/0557 ,  H01L41/20 ,  H01L41/47 ,  B22F3/15 ,  B22F3/24 ,  B22F3/02 ,  B22F2202/05 ,  B22F2201/013 ,  B22F2201/10

摘要： A method for manufacturing a sintered compact includes the steps of preparing an alloy powder having a composition represented by Expression 1: RTW (where, R is at least one kind of rare earth metal, T is at least one kind of transition metal, and w defines a relation of 1

摘要翻译： 制造烧结体的方法包括以下步骤：制备由表达式1表示的组成的合金粉末：RTW（其中，R为至少一种稀土金属，T为至少一种过渡金属，w 定义1

公开(公告)号：US20030062098A1

公开(公告)日：2003-04-03

申请号：US10151096

申请日：2002-05-21

发明人： Kazuaki Sakaki ,  Koji Sato ,  Takahiro Hashimoto ,  Takehisa Minowa

IPC分类号： H01F001/00 ,  H01F001/055

CPC分类号： H01F1/0551 ,  B22F2009/041 ,  B22F2998/00 ,  C22C1/0441 ,  H01F1/055 ,  H01F1/0558 ,  B22F9/04

摘要： An alloy powder for bonded rare earth magnets is prepared by melting an alloy consisting essentially of 20-30 wt % of Sm or a mixture of rare earth elements (inclusive of Y) containing at least 50 wt % of Sm, 10-45 wt % of Fe, 1-10 wt % of Cu, 0.5-5 wt % of Zr, and the balance of Co, quenching the melt by a strip casting technique, to form a rare earth alloy strip containing at least 20% by volume of equiaxed crystals with a grain size of 1-200 nullm and having a gage of 0.05-3 mm, and heat treating the strip in a non-oxidizing atmosphere at 1000-1300null C. for 0.5-20 hours, followed by aging treatment and grinding.

摘要翻译： 通过熔融基本上由20-30重量％的Sm组成的合金或含有至少50重量％的Sm，10〜45重量％的Sm的稀土元素（包括Y）的混合物来制备用于粘结稀土磁体的合金粉末， 的Fe，1-10重量％的Cu，0.5-5重量％的Zr，余量为Co，通过带材浇铸技术使熔体淬火，形成含有至少20体积％等轴的稀土合金条 晶粒尺寸为1-200μm，表面积为0.05-3mm，并在非氧化性气氛中在1000-1300℃下热处理该条带0.5-20小时，然后进行时效处理和研磨 。

公开(公告)号：US20040079446A1

公开(公告)日：2004-04-29

申请号：US10642276

申请日：2003-08-18

发明人： Ryosuke Kogure ,  Hirokazu Kanekiyo ,  Takeshi Nishiuchi ,  Satoshi Hirosawa

IPC分类号： H01F001/055

CPC分类号： H01F1/015 ,  H01F1/0571

摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMc where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %nullanull10 at %, 4.7 at %nullbnull18 at % and 0 at %nullcnull9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.

摘要翻译： 制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体，得到一种由Fe100-ab-cREaAbTMc表示的快速固化的合金，其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb中的至少一种稀土元素， Dy，Ho，Er和Tm，并且包括至少约90原子％的La; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5原子％<= a <= 10原子％，4.7原子％<= b <= 18原子％和0原子％<= c <= 9原子％ 并在至少约70vol％的快速凝固合金中生产具有NaZn13型晶体结构的复合相。

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。