RARE-EARTH MAGNET PRODUCTION METHOD
    1.
    发明申请
    RARE-EARTH MAGNET PRODUCTION METHOD 有权
    稀土磁铁生产方法

    公开(公告)号:US20150287530A1

    公开(公告)日:2015-10-08

    申请号:US14436959

    申请日:2013-10-17

    Abstract: A method for manufacturing a rare-earth magnet, through hot deformation processing, having a high degree of orientation at the entire area thereof and high remanence, without increasing processing cost including a step of press-forming powder as a rare-earth magnetic material to form a compact S; and a step of performing hot deformation processing to the compact S, thus manufacturing the rare-earth magnet C. The hot deformation processing includes two steps of extruding and upsetting. The extruding is to place a compact S in a die Da, and apply pressure to the compact S′ in a heated state with an extrusion punch PD so as to reduce the thickness for extrusion to prepare the rare-earth magnet intermediary body S″ having a sheet form, and the upsetting is to apply pressure to the rare-earth magnet intermediary body S″ in the thickness direction to reduce the thickness, thus manufacturing the rare-earth magnet C.

    Abstract translation: 一种通过热变形加工制造稀土磁体的方法,其在整个区域具有高取向度和高剩磁,而不增加加工成本,包括将粉末作为稀土磁性材料的压制成形步骤 形成一个紧凑的S; 以及对压块S进行热变形处理的步骤,从而制造稀土磁体C.热变形处理包括两个挤压和镦锻步骤。 挤出是将小型S放入模具Da中,并用挤压冲头PD在加热状态下对压块S'施加压力,以便减小挤出厚度,从而制备出稀土磁体中间体S“,具有 薄片形式,并且镦粗是在厚度方向上向稀土磁体中间体S“施加压力以减小厚度,从而制造稀土磁体C.

    METHOD OF PRODUCTION OF RARE EARTH MAGNET
    2.
    发明申请
    METHOD OF PRODUCTION OF RARE EARTH MAGNET 审中-公开
    生产稀土磁铁的方法

    公开(公告)号:US20130323111A1

    公开(公告)日:2013-12-05

    申请号:US13982533

    申请日:2011-02-21

    Abstract: The present invention provides a method of production of a rare earth magnet which achieves high magnetization by hot working and at the same time secures high coercivity.A method of production of the present invention is a method for producing an R-T-B-based rare earth magnet comprising: molding a powder of an R-T-B-based rare earth alloy (R: rare earth element, T: Fe or Fe part of which is substituted by Co) to form a bulk; then hot working the bulk; and before the molding, mixing with the powder of an R-T-B-based rare earth alloy either a metal which forms a liquid phase in copresence with R at a temperature lower than the hot working temperature, or an alloy which forms a liquid phase at a temperature lower than the hot working temperature.

    Abstract translation: 本发明提供一种通过热加工实现高磁化强度并且同时确保高矫顽力的稀土类磁体的制造方法。 本发明的制造方法是一种RTB系稀土类磁体的制造方法,其特征在于,将RTB系稀土类合金(R:稀土元素,T:Fe或Fe的一部分取代为 由Co)形成散装; 然后热加工散装; 在成型之前,与RTB系稀土合金的粉末混合,或者在低于热加工温度的温度下与R形成液相的金属或在温度下形成液相的合金 低于热工作温度。

    Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium
    5.
    发明申请
    Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium 审中-公开
    六角铁氧体磁粉,其制造方法和磁记录介质

    公开(公告)号:US20060051624A1

    公开(公告)日:2006-03-09

    申请号:US11253604

    申请日:2005-10-20

    CPC classification number: G11B5/70678 G11B5/714 Y10T428/2982

    Abstract: A hexagonal ferrite magnetic powder having an average tabular diameter of from 15 to 30 nm, a coercive force (Hc) of from 2,000 to 5,000 Oe (from 160 to 400 kA/m) and a saturated magnetization (σs) of equal to or more than [the average tabular diameter (nm)×0.37+45] A·m2/kg. This magnetic powder is obtained by melting a starting material containing a material which has a composition within the hatched region (1) in the triangular phase diagram shown in FIG. 1 and quenching the molten product to obtain an amorphous product, subjecting the amorphous product to a thermal treatment, acid treatment, and washing. Also, a magnetic recording medium is obtained by adding this magnetic powder to the magnetic layer and coating it on the support.

    Abstract translation: 平均片状直径为15〜30nm,矫顽力(Hc)为2,000〜5000Oe(160〜400kA / m),饱和磁化强度(sigmas)等于或等于 比[平均片状直径(nm)×0.37±45] Am 2 / kg。 该磁性粉末是通过将含有在阴影区域(1)内的组成的材料的原料熔化成图3所示的三角形相,得到的。 1并淬火熔融产物以获得无定形产物,对无定形产物进行热处理,酸处理和洗涤。 此外,通过将该磁性粉末添加到磁性层并将其涂覆在载体上而获得磁记录介质。

    Turbo machines
    7.
    发明授权

    公开(公告)号:US06435819B1

    公开(公告)日:2002-08-20

    申请号:US09925539

    申请日:2001-08-10

    Abstract: For improving characteristic uprising at the right-hand side of head-flow rate characteristic of a turbo machine, as well as for suppressing increase of vibration and/or noises thereof, a plurality of first grooves 24 in direction of gradient in pressure of fluid are formed on an inner flow surface of a casing, for connecting an inlet side of blades of an impeller and an area on the inner flow surface of the casing where the impeller blades reside in, over an inner circumference of the casing. Also, second grooves 25 in a circumferential direction are formed in an area on the inner flow surface of the casing where the impeller blades reside in, for communicating the first grooves in the circumferential direction of the casing.

    Process for producing a sliding member and a process for producing a
composite layer member
    8.
    发明授权
    Process for producing a sliding member and a process for producing a composite layer member 失效
    滑动构件的制造方法以及复合层构件的制造方法

    公开(公告)号:US5761592A

    公开(公告)日:1998-06-02

    申请号:US650352

    申请日:1996-05-20

    CPC classification number: B22F7/062 F16D23/025 B22F2998/00

    Abstract: A process for producing a sliding member employs a base material having a covering surface and pores, and a layer material comprising a constitutive component for reacting with a constitutive component of the base material. Initially, the layer material comes into contact with at least part of the covering surface of the base material. Next, the both are heated to the sintering temperature of the base material. Thus, a molten liquid occurs at the boundary between the base material and the layer material. Since the solidus temperature of the molten liquid increases with the reaction proceeding, the molten liquid can solidify early to seal the pores at the covering surface of the base material early. Therefore, the layer material remains on the covering surface of the base material, the remaining layer material comes to constitute a sliding surface.

    Abstract translation: 用于制造滑动构件的方法采用具有覆盖表面和孔的基材,以及包含用于与基材的构成成分反应的组成成分的层材料。 最初,层材料与基材的至少一部分覆盖表面接触。 接下来,将两者加热至基材的烧结温度。 因此,在基材和层材料之间的边界处发生熔融液体。 由于熔融液的固相线温度随着反应进行而增加,所以熔融液体可以提早凝固,以便早期密封基材的覆盖表面的孔。 因此,层材料残留在基材的覆盖面上,残留的层材料构成滑动面。

    Solder and soldering method for sintered metal parts
    10.
    发明授权
    Solder and soldering method for sintered metal parts 失效
    烧结金属零件的焊接和焊接方法

    公开(公告)号:US4857695A

    公开(公告)日:1989-08-15

    申请号:US139633

    申请日:1987-12-30

    CPC classification number: B23K35/32 B23K35/302 B23K35/3033 B23K35/3093

    Abstract: Provided herein is a solder for sintered metal parts which is composed of Fe and/or Cr 5.about.40%, Si and/or B 1.about.5%, Cu 20.about.65%, Mn 5.about.30%, and Ni 20% and up, and optional flux 1.about.6% (by weight). The solder may lack either or both of Cu and Mn. Provided also herein is a process for soldering sintered metal parts with the solder. The solder joins parts very well with a minimum of infiltration into and corrosion to the sintered metal parts.

    Abstract translation: 本文提供了一种用于烧结金属部件的焊料,其由Fe和/或Cr 5差异40%,Si和/或B 1差5%,Cu 20差65%,Mn 5差30%和Ni 20%组成, 和可选助熔剂1差异6%(重量)。 焊料可能会缺少Cu和Mn中的一种或两种。 本文还提供了用焊料焊接烧结金属部件的方法。 焊料非常好地接合部件,同时对烧结金属部件进行最少的渗透和腐蚀。

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