Oxidation resistant metallic materials
    1.
    发明授权
    Oxidation resistant metallic materials 失效
    耐氧化金属材料

    公开(公告)号:US5800152A

    公开(公告)日:1998-09-01

    申请号:US737993

    申请日:1997-02-14

    摘要: Metallic materials which possess suitable characteristics for serving as an intermediate layer between a thermal barrier coating and a matrix substrate, or as a separator for a solid oxide fuel cell, contain 15 to 40 wt % Cr, 5 to 15 wt % W, 0.01 to 1 wt % M (where M is one or more than two elements chosen from Y, Hf, Ce, La, Nd, and Dy), 0.001 to 0.01 wt % B and a balance of Fe. The average value of the coefficient of thermal expansion of the metallic material is in a range from more than 12.0.times.10.sup.-6 /K to less than 13.0.times.10.sup.-6 /K in a temperature range from room temperature to 1,000.degree. C., and the value is close to that of stabilized zirconia. The metallic materials display excellent high temperature oxidation resistance.

    摘要翻译: PCT No.PCT / JP96 / 00914 Sec。 371日期1997年2月14日 102(e)日期1997年2月14日PCT提交1996年4月3日PCT公布。 公开号WO96 / 31634 日期1996年10月10日具有适合作为隔热涂层和基体基板之间的中间层的特性的金属材料,或作为固体氧化物型燃料电池用隔板,含有15〜40重量%的Cr,5〜15重量% %W,0.01〜1重量%M(其中M为选自Y,Hf,Ce,La,Nd和Dy中的一种或多于两种元素),0.001至0.01重量%B,余量为Fe。 在室温至1000℃的温度范围内,金属材料的热膨胀系数的平均值在大于12.0×10 -6 / K至小于13.0×10 -6 / K的范围内, 值接近稳定氧化锆的值。 金属材料显示出优异的高温抗氧化性。

    Fabrication methods and equipment for granulated powders
    2.
    发明授权
    Fabrication methods and equipment for granulated powders 失效
    造粒粉末的制造方法和设备

    公开(公告)号:US5662943A

    公开(公告)日:1997-09-02

    申请号:US641772

    申请日:1996-04-30

    摘要: The purpose of this invention is to present fabrication methods and equipment for granulated powders whereby, the reaction between the R--Fe--B-type or R--Co-type rare earth containing alloy powders and the binder is controlled, the residual oxygen and carbon content of the sintered products after sintering is reduced, and whereby it is possible to obtain isotropic or anisotropic granulated powders having good powder flowability and lubrication properties when molding. After stirring a slurry of rare earth containing alloy powders formed by adding a binder consisting of water and at least one of either methyl cellulose, polyacryl amide or polyvinyl alcohol, and mixing, oriented liquid droplets are formed by applying a magnetic field to the slurry to orientate the said powder particles and spraying within the chamber of a spray dryer apparatus. By instantaneously dry solidifying these anisotropic granulated powders, it is possible to fabricate spherical granulated powders with good magnetic properties and a high flowability whereby the flowability and lubrication properties of the powder at the time of compression molding are improved, as well as improving the molding cycle and the dimensional precision of the molded product.

    摘要翻译: 本发明的目的是提供造粒粉末的制造方法和设备,由此控制R-Fe-B型或R-Co型稀土合金粉末与粘合剂之间的反应,残余氧和碳 烧结后的烧结体的含量降低,由此可以获得成型时具有良好的粉末流动性和润滑性的各向同性或各向异性的造粒粉末。 在搅拌通过添加由水组成的粘合剂和甲基纤维素,聚丙烯酰胺或聚乙烯醇中的至少一种形成的粘合剂粉末和混合取向液滴形成浆料后,通过向浆料施加磁场而形成 使所述粉末颗粒定向并在喷雾干燥设备的室内喷雾。 通过瞬时干燥固化这些各向异性粒状粉末,可以制造具有良好磁性能和高流动性的球形颗粒粉末,从而提高压缩模制时粉末的流动性和润滑性能,以及改善成型周期 和模制产品的尺寸精度。

    Radial anisotropic cylinder type ferrite magnets and their manufacturing
methods and motors
    3.
    发明授权
    Radial anisotropic cylinder type ferrite magnets and their manufacturing methods and motors 失效
    径向各向异性圆柱型铁氧体磁铁及其制造方法和电机

    公开(公告)号:US5506557A

    公开(公告)日:1996-04-09

    申请号:US146190

    申请日:1994-01-18

    摘要: A high performance radial anisotropic cylinder-shape ferrite magnet for use in a motor to lower its noise and enable miniaturization thereof is formed of an integrated one-piece body formed of sintered Sr and/or Ba ferrite powders and has an axially-extending slit that is created before the body is sintered to reduce internal stress due to shrinkage. The slit can extend in parallel to both the axial and radial directions of the body, diagonally to both the axial and radial directions, or diagonally to the radial direction and parallel to the axial direction. The slit can be filled with a resin material.

    摘要翻译: PCT No.PCT / JP93 / 00319 Sec。 371日期1994年1月18日 102(e)日期1994年1月18日PCT 1993年3月17日PCT公布。 公开号WO93 / 19020 PCT 日本9月30日,1993年。用于电机降低噪声并使其小型化的用于电动机的高性能径向各向异性圆柱形铁氧体磁体由形成为Sr和/或Ba铁氧体粉末的一体化整体形成, 具有在被烧结之前产生的轴向延伸狭缝,以减少由于收缩引起的内部应力。 狭缝可以平行于主体的轴向和径向方向两者沿轴向和径向方向,或者与半径方向对角并且平行于轴向方向延伸。 狭缝可以填充树脂材料。

    Powder material for rare earth-iron-boron based permanent magnets
    4.
    发明授权
    Powder material for rare earth-iron-boron based permanent magnets 失效
    稀土 - 铁硼永磁体用粉末材料

    公开(公告)号:US5281250A

    公开(公告)日:1994-01-25

    申请号:US838092

    申请日:1992-02-20

    CPC分类号: H01F1/0573 H01F1/0571

    摘要: A powder for producing permanent magnets, comprising a blend of powders [A] and [B] or [C] wherein:alloy powder [A] has an R.sub.2 Fe.sub.14 B phase and contains, in atomic percent, from 11 to 13% of at least one rare element, R, inclusive of Y, from 4 to 12% of B, and the balance Fe; or optionally, said powder has an R.sub.2 (Fe,Co).sub.14 B phase, an R.sub.2 (Fe,Ni).sub.14 B phase or an R.sub.2 (Fe,Co,Ni).sub.14 B phase, containing at least one selected from the group consisting of 10% or less of Co and 3% or less of Ni as a partially substitute for Fe;powder [B] is an intermetallic compound having an intermetallic compound phase of R with Fe or Co inclusive of an R.sub.3 Co phase (provided that Co may be partially substituted for by Fe), containing, in atomic percent, from 13 to 45% of at least one rare element, R, inclusive of Y, and the balance Co (provided that Co may be partially substituted for by Fe),powder [C] is an intermetallic compound having an intermetallic compound phase of R with Fe or Co inclusive of an R.sub.3 Co phase (provided that Co may be partially substituted for by Fe) and an R.sub.2 Fe.sub.14 B phase, containing, in atomic percent, from 13 to 45% of at least one rare element, R, inclusive of Y, 12% or less of B and the Co (provided that Co may be partially substituted for by Fe).

    摘要翻译: 一种用于制造永磁体的粉末,其包含粉末(A)和(B)或(C)的混合物,其中:合金粉末(A)具有R2Fe14B相,原子百分比含有11至13%的至少一种 稀有元素R,包括Y,B的4〜12%,余量为Fe; 或任选地,所述粉末具有R2(Fe,Co)14B相,R2(Fe,Ni)14B相或R2(Fe,Co,Ni)14B相,其含有选自10% 以下的Co和3%以下的Ni作为Fe的部分替代物; 粉末(B)是具有与Fe或Co的金属间化合物相的金属间化合物,包括R3Co相(其中Co可以部分被Fe取代),原子百分比含有13〜45%的 至少一种稀有元素R(包括Y)和余量Co(条件是Co可以部分被Fe取代),粉末(C)是金属间化合物的金属间化合物,其中R与Fe或Co包括 R3Co相(其中Co可以被Fe部分取代)和R2Fe14B相,其中原子百分比含有13至45%的至少一种稀有元素R,包括Y,12%或更少的B和 Co(Co可以部分地被Fe代替)。

    Magnetic field generator for MRI
    5.
    发明授权
    Magnetic field generator for MRI 失效
    磁场发生器用于MRI

    公开(公告)号:US5621324A

    公开(公告)日:1997-04-15

    申请号:US146191

    申请日:1994-01-18

    摘要: A magnet field generating apparatus for MRI, comprising:a plurality of permanent magnet assemblies disposed continuously around the angular inner circumference of a hexagonal tubular yoke to provide a uniform magnetic field at the center portion of the hollow space inside said permanent magnet assemblies; the permanent magnet assemblies forming a main magnetic field by a pair of oppositely disposed permanent magnet assemblies which are trapezoidal or square in cross-section; other pairs of permanent magnet assemblies having a triangular or square cross-section; each of the pairs of oppositely disposed permanent magnet assemblies has a side surface in contact with a part of the inner peripheral surface of the yoke and forms a plurality of permanent magnet blocks which are magnetized perpendicularly to the side surface in contact with the yoke so that the permanent magnet assemblies are magnetized perpendicularly to the side surface thereof in contact with the yoke; magnetic pole pieces disposed on each surface of the pair of oppositely disposed permanent magnet assemblies; and permanent magnet piece projections having the same magnetizing direction as the plurality of permanent magnet assemblies are respectively disposed on each surface of the paired oppositely disposed permanent magnet assemblies on which no magnetic pole piece is disposed.

    摘要翻译: PCT No.PCT / JP93 / 00320 Sec。 371日期1994年1月18日 102(e)日期1994年1月18日PCT 1993年3月17日PCT公布。 公开号WO93 / 18707 日期:1993年9月30日磁共振成像磁场产生装置,包括:多个永磁体组件,其围绕六边形管状磁轭的角内圆周连续设置,以在所述永磁体内部的中空空间的中心部分提供均匀的磁场 磁铁组件 所述永磁体组件通过一对相对设置的永磁体组件形成主磁场,所述永磁体组件是梯形或正方形的横截面; 其他成对的具有三角形或正方形横截面的永磁体组件; 每对相对设置的永磁体组件具有与磁轭的内周表面的一部分接触的侧表面,并且形成多个垂直于与磁轭接触的侧表面磁化的永磁体块,使得 永磁体组件被垂直于其与轭的接触的侧表面磁化; 设置在一对相对设置的永磁体组件的每个表面上的磁极片; 并且具有与多个永磁体组件相同的磁化方向的永磁体片突起分别设置在不设置磁极片的成对相对设置的永久磁铁组件的每个表面上。

    Alloy powders for bond magnet and bond magnet
    6.
    发明授权
    Alloy powders for bond magnet and bond magnet 失效
    用于粘结磁体和粘结磁体的合金粉末

    公开(公告)号:US5529603A

    公开(公告)日:1996-06-25

    申请号:US196186

    申请日:1994-06-17

    摘要: It is an object of the present invention to provide a fire resistance bond magnet having superior temperature properties and most suitable for convergence use in picture tubes for display and high precision television, and alloy powders for bond magnet, without containing Co which is restricted in resources. The flame retardancy bond magnet having superior temperature properties and most suitable for convergence use in picture tubes for display and high precision television can be provided at low cost without containing Co, by using the alloy powders for bond magnet consisting of Al-Ni-Cu-(Ti, Nb)-Fe without Co, and having an isotropy and mean particle sizes of 10 .mu.m to 200 .mu.m, and kneading, molding and curing the 20 wt % to 80 wt % alloy powders together with a chlorine flame retardant, a flame retardant assistant such as antimony trioxide and zinc boric acid and a binder.

    摘要翻译: PCT No.PCT / JP93 / 00864 Sec。 371日期:1994年6月17日 102(e)日期1994年6月17日PCT提交1993年6月25日PCT公布。 公开号WO94 / 00259 日本1994年1月6日。本发明的目的是提供一种耐火粘结磁体,其具有优异的温度特性,最适合用于显示器和高精度电视机的显像管和用于粘结磁体的合金粉末, 含有限制资源的公司。 具有优异的温度特性并且最适合于用于显示器和高精度电视机的显像管的会聚使用的阻燃粘结磁体可以以低成本提供,不含Co,通过使用由Al-Ni-Cu- (Ti,Nb)-Fe,并具有各向同性,平均粒径为10μm〜200μm,并将20重量%〜80重量%的合金粉末与氯阻燃剂一起捏合,成型和固化, 阻燃助剂如三氧化锑和硼酸锌和粘合剂。