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    • 1. 发明授权
    • R-FE-B permanent magnet materials and process of producing the same
    • R-FE-B永磁材料及其制造方法
    • US5788782A
    • 1998-08-04
    • US512951
    • 1995-08-09
    • Yuji KanekoNaoyuki IshigakiKoki Tokuhara
    • Yuji KanekoNaoyuki IshigakiKoki Tokuhara
    • B22F9/02C22C1/04H01F1/057H01F1/032
    • C22C1/0441B22F9/023H01F1/0573H01F1/0577B22F2998/00B22F2999/00
    • It is an object of the present invention to provide R-Fe-B permanent magnet materials having a good oxidation resistance and magnetic characteristics, and a process of producing the same capable of pulverizing efficiently, whereby an R-Fe-B molten alloy having a specific composition is casted into a cast piece having a specific plate thickness and a structure, in which an R-rich phase is finely separated below 5 .mu.m, by a strip casting process, the cast piece is subjected to a Hydrogenation for spontaneous decay, and thereafter, an alloy powder is dehydrogenated and stabilized for pulverization so as to fractionize crystal grains of a main phase constituting an alloy ingot, thereby the powder having a uniform grain distribution can be produced at an efficiency of about twice as much as the conventional process, and the R-rich phase and an R.sub.2 Fe.sub.14 B phase are also fractionized at the time of pulverization, thus by magnetization by pressing after the orientation using a pulse magnetic field, a high performance R-Fe-B permanent magnet having, a good oxidation resistance and magnetic characteristics of the magnet alloy, particularly, a total value A+B of a maximum energy product value (BH) max (MGOe); A and a characteristic value; B of a coercive force iHc (kOe) of 59 or more and the squareness of demagnetization curve {(Br.sup.2 /4)/(BH) max} of 1.01 to 1.045 is obtained.
    • 本发明的目的是提供具有良好的抗氧化性和磁特性的R-Fe-B永磁材料及其制造方法,其能够有效地粉碎,由此制备具有 将特定组合物通过带材流延法铸造成具有特定板厚度和其中富含R相细微分离的结构的铸件,将铸片进行氢化自发衰变, 然后,将合金粉末脱氢稳定化,进行粉碎,以使构成合金锭的主相的晶粒分级,由此可以以常规方法的大约两倍的效率制造具有均匀晶粒分布的粉末 ,并且在粉碎时还分解富R相和R2Fe14B相,因此通过使用脉冲磁性fie在定向后通过压制而磁化 ld是具有良好的抗氧化性和磁性合金的磁特性的高性能R-Fe-B永磁体,特别是最大能量乘积值(BH)max(MGOe)的总值A + B。 A和特征值; 得到59以上的矫顽力iHc(kOe)的B和1.01〜1.045的退磁曲线{(Br2 / 4)/(BH)max}的矩形度。
    • 2. 发明授权
    • Process for producing alloy powder material for R-Fe-B permanent magnets
and alloy powder for adjusting the composition therefor
    • 制造用于R-Fe-B永磁体的合金粉末材料和用于调整其组成的合金粉末的方法
    • US5387291A
    • 1995-02-07
    • US032101
    • 1993-03-17
    • Yuji KanekoKoki Tokuhara
    • Yuji KanekoKoki Tokuhara
    • H01F1/057H01F1/02
    • H01F1/0577H01F1/0571
    • A process for producing a starting powder material for use in the fabrication of high performance R--Fe--B permanent magnets comprising an R.sub.2 Fe.sub.14 B compound as the principal phase, which is characterized by adding 70% by weight or less of a specified alloy powder for adjusting the composition comprising an R.sub.2 Fe.sub.17 compound to a specified principal phase R--Fe--B alloy powder comprising an R.sub.2 Fe.sub.14 B compound as the principal phase. This process enables production of a starting alloy powder material considerably reduced in contents of the unfavorable B-rich and R-rich phases which impair the magnetic properties of the final magnet, because the starting powder blend allows the B-rich and R-rich compounds in the principal phase alloy powder to react with the R.sub.2 Fe.sub.17 compound being incorporated in the alloy powder for adjusting the composition.
    • 一种用于制造用于制造以R 2 Fe 14 B化合物为主相的高性能R-Fe-B永磁体的起始粉末材料的方法,其特征在于加入70重量%或更少的用于调节的特定合金粉末 该组合物包含R2Fe17化合物与包含R2Fe14B化合物作为主相的指定主相R-Fe-B合金粉末。 由于起始粉末混合物允许富含B的富含R的化合物,所以这种方法能够生产显着减少不利的富B相和富R相的含量的起始合金粉末材料,从而损害最终磁体的磁特性 在主相合金粉末中与掺入合金粉末中的R2Fe17化合物反应以调节组成。
    • 3. 发明授权
    • Fabrication methods for R-Fe-B permanent magnets
    • R-Fe-B永磁体的制造方法
    • US5666635A
    • 1997-09-09
    • US523928
    • 1995-09-06
    • Yuji KanekoNaoyuki Ishigaki
    • Yuji KanekoNaoyuki Ishigaki
    • B22F3/12B22F3/00H01F1/057H01F1/08H01F41/00B22F1/00
    • B22F3/004H01F1/0577B22F2999/00
    • This invention, using finely ground powders obtained by either a ingot grinding method, a Ca reduction diffusion method or a strip casting method, proposes a fabrication method for high-performance R--Fe--B permanent magnets with excellent press packing characteristics, a high degree of orientation of the magnetization direction of each crystallite and a total sum of A, (BH)max (MGOe) and B, iHc (kOe), A+B greater than 59.5. Here, cast alloys or ground alloys are coarse ground by mechanical grinding or by a H.sub.2 absorption and decomposition method, and then fine ground by either mechanical grinding or by a jet mill grinding process to yield R--Fe--B fine powders with an average particle size of 1.0 .mu.m.about.10 .mu.m. These powders are then packed into a mold at a packing density of 1.4.about.3.5 g/cm.sup.3, a pulsed magnetic field with a field intensity greater than 10 kOe is applied so as to repeatedly invert the magnetization direction, and finally cold isostatic pressing is performed in a static magnetic field.
    • 本发明使用通过锭磨法,Ca还原扩散法或带铸造法获得的细磨粉末,提出了一种高性能R-Fe-B永磁体的制造方法,其具有优异的压制包装特性,高度 每个微晶的磁化方向的取向和A,(BH)max(MGOe)和B,iHc(kOe),A + B的总和大于59.5。 这里,铸造合金或地面合金通过机械研磨或H2吸收分解法粗磨,然后通过机械研磨或喷射磨研磨法精细研磨,得到具有平均粒子的R-Fe-B细粉 尺寸为1.0亩,差异为10亩。 然后将这些粉末以1.4DIFFERENCE 3.5g / cm 3的填充密度包装在模具中,施加场强大于10kOe的脉冲磁场,以反复反转磁化​​方向,最后进行冷等静压 在静态磁场中。
    • 4. 发明授权
    • Rare earth magnet material and method for producing the same
    • 稀土磁铁材料及其制造方法
    • US09242296B2
    • 2016-01-26
    • US13384901
    • 2010-09-10
    • Yuji KanekoYukio Takada
    • Yuji KanekoYukio Takada
    • B22F3/12H01F1/057B22F1/00B22F3/24C22C33/02H01F41/02
    • B22F1/0088B22F3/24C22C33/0278H01F1/0577H01F41/0246H01F41/0293
    • A method for producing a rare earth magnet material which allows efficient Dy or the like diffusion into an inside thereof. This method includes a preparation step of preparing a powder mixture of magnet powder including one or more rare earth elements including neodymium, boron, and the remainder being iron; and neodymium fluoride powder; a heating step of heating a compact of the powder mixture and causing oxygen around magnet powder particles to react with the fluoride powder, thereby obtaining a lump rare earth magnet material in which neodymium oxyfluoride is wholly distributed. The fluoride powder traps oxygen enclosed in the powder mixture and fixes the oxygen as stable NdOF. When Dy is diffused into this rare earth magnet material, Dy smoothly enters into its inside without being oxidized at grain boundaries. Consequently, coercivity of the entire rare earth magnet material can be efficiently increased without wasting scarce Dy.
    • 一种稀土类磁铁材料的制造方法,其特征在于,能够有效地将Dy等扩散到内部。 该方法包括制备包括一种或多种稀土元素的磁粉的粉末混合物的制备步骤,所述稀土元素包括钕,硼,其余为铁; 和氟化钕粉末; 加热粉末混合物的粉末并使磁体粉末颗粒周围的氧与氟化物粉末反应的加热步骤,从而获得其中全氟分布有氟化钕的块状稀土磁体材料。 氟化物粉末将氧气封闭在粉末混合物中并固定氧气作为稳定的NdOF。 当Dy扩散到这种稀土磁体材料中时,Dy平滑地进入其内部而不在晶界处被氧化。 因此,可以有效地提高整个稀土磁体材料的矫顽力,而不会浪费稀少的Dy。
    • 7. 发明申请
    • Replication system having the capability to accept commands at a standby-system site before completion of updating thereof
    • 复制系统具有在完成更新之前在备用系统站点接受命令的能力
    • US20050289197A1
    • 2005-12-29
    • US11148411
    • 2005-06-09
    • Masaki KanJun-ichi YamatoYuji Kaneko
    • Masaki KanJun-ichi YamatoYuji Kaneko
    • G06F12/00
    • G06F11/2097G06F11/2023G06F11/2038G06F11/2048
    • A replication system rapidly switches from a normal-system site to a standby-system site in the event of a problem and reliably maintains functions, and moreover, reduces drops in performance. A first site provides system functions that accompany writing and reading of data. A relay transfer device receives update information from the first site, causes completion of processes for replication in the first site, and continuously executes processes for successively transferring the update information to a second site. The second site receives the update information of the first site and applies this update information to itself to retain a replica of the data of the first site. If, when executing a write request command or a read request command to provide at least a portion of the system functions, the second site has not yet retained the most recent data that are the target of the command, the second site acquires the necessary update information and then executes the command.
    • 在发生问题的情况下,复制系统可以从普通系统站点快速切换到备用系统站点,并可靠地维护功能,此外,降低性能下降。 第一个站点提供与数据的写入和读取相关的系统功能。 中继传送装置从第一站点接收更新信息,导致在第一站点进行复制处理,并连续执行将更新信息连续传送到第二站点的处理。 第二站点接收第一站点的更新信息,并将此更新信息应用于其自身以保留第一站点的数据的副本。 如果当执行写入请求命令或读取请求命令以提供系统功能的至少一部分时,第二站点尚未保留作为命令目标的最新数据,则第二站点获取必要的更新 信息,然后执行命令。
    • 8. 发明授权
    • Magnetic alloy powder for permanent magnet and method for producing the same
    • 用于永磁体的磁性合金粉末及其制造方法
    • US06818041B2
    • 2004-11-16
    • US09952056
    • 2001-09-14
    • Hiroyuki TomizawaYuji Kaneko
    • Hiroyuki TomizawaYuji Kaneko
    • B22F100
    • H01F1/0574H01F1/058
    • 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.
    • 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。
    • 10. 发明授权
    • Electric discharge machining power supply, and electric discharge machining method
    • 放电加工电源,放电加工方法
    • US06423920B1
    • 2002-07-23
    • US09762062
    • 2001-02-01
    • Yuji KanekoDaisuke SadsmitsuZhanbo Gu
    • Yuji KanekoDaisuke SadsmitsuZhanbo Gu
    • B23H102
    • B23H1/022B23H2300/20B23H2300/22
    • A power supply (100) and a method for electric discharge machining by repeatedly providing a current pulse to a working gap (3) formed between a tool electrode (1) and a workpiece (2) includes a d.c. power source (E), first switching elements (Tr1-Trn) connected between the d.c. power source and the working gap, capacitors (C1-C8) connected in parallel with the working gap, second switching elements (67) for controlling current flow from the capacitor to the working gap, a detector (50) for detecting start of an electric discharge, and a controller (20) for controlling the first switching elements and the second switching elements in response to the detector. Current is supplied from the d.c. power source through the first switching elements to the working gap only for a first time interval (&tgr; ON) starting from the commencement of electric discharge, and a current is supplied from the capacitor through the second switching elements to the working gap for only a second time interval (T) is shorter than the first time interval, starting from the commencement of an electric discharge.
    • 通过对形成在工具电极(1)和工件(2)之间的工作间隙(3)重复提供电流脉冲的电源(100)和放电加工方法包括直流电。 电源(E),连接在直流电源之间的第一开关元件(Tr1-Trn)。 电源和工作间隙,与工作间隙并联连接的电容器(C1-C8),用于控制从电容器到工作间隙的电流的第二开关元件(67),用于检测电 放电,以及用于响应于检测器控制第一开关元件和第二开关元件的控制器(20)。 电流由d.c.提供。 电源通过第一开关元件到工作间隙,仅从放电开始开始的第一时间间隔(& tgr; ON),并且电流从电容器通过第二开关元件提供到工作间隙,仅用于 从放电开始开始,第二时间间隔(T)比第一时间间隔短。