Multilevel parts from agglomerated spherical metal powder
    351.
    发明授权
    Multilevel parts from agglomerated spherical metal powder 有权
    聚集球状金属粉末的多层部件

    公开(公告)号:US09101982B2

    公开(公告)日:2015-08-11

    申请号:US13140207

    申请日:2010-01-08

    Abstract: A method for the manufacture of a multilevel metal part, the method including the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfills the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere including hydrogen, d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99% TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.

    Abstract translation: 一种用于制造多层金属部件的方法,所述方法包括以下步骤:a)将聚集的球形金属粉末压实成绿色多层预型件,使得存在开放孔隙,其中,所述绿色多层预型件满足关系zg = zHVC·a b)去污绿色预成型件,c)在包括氢的气氛中烧结生坯预成型件,d)以高速压实将生坯预成型件压实至至少95%TD的密度,e)使部件致密化至密度 至少99%的TD。 还提供了多层金属部件。 该方法的优点在于,可以制造在整个部件上基本均匀的多层部件,其具有优异的公差,同时实际上具有全密度,从而具有优异的机械性能以及优异的腐蚀性能。

    Permanent magnet and manufacturing method thereof
    352.
    发明授权
    Permanent magnet and manufacturing method thereof 有权
    永磁体及其制造方法

    公开(公告)号:US09039920B2

    公开(公告)日:2015-05-26

    申请号:US13499616

    申请日:2011-03-28

    Abstract: There are provided a permanent magnet and a manufacturing method thereof enabling carbon content contained in magnet particles to be reduced in advance before sintering even when wet milling is employed. Coarsely-milled magnet powder is further milled by a bead mill in a solvent together with an organometallic compound expressed with a structural formula of M-(OR)X (M represents V, Mo, Zr, Ta Ti W or Nb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, X represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the magnet powder. Thereafter, a compact body of compacted magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius to perform hydrogen calcination process. Thereafter, through sintering process, a permanent magnet 1 is formed.

    Abstract translation: 提供永磁体及其制造方法,即使在使用湿磨时也能预先在烧结前减少磁体颗粒中含有的碳含量。 粗粉碎的磁粉通过珠磨机在溶剂中与结构式为M-(OR)X(M表示V,Mo,Zr,Ta Ti W或Nb表示的有机金属化合物)进一步研磨,R表示 由直链或支链烃构成的取代基,X表示任意的整数),以使有机金属化合物均匀地附着在磁铁粉末的粒子表面。 之后,在200〜900摄氏度的氢气氛中,将紧凑的致密体磁体保持数小时,进行氢煅烧。 此后,通过烧结处理,形成永磁体1。

    Method and atmosphere for extending belt life in sintering furnace
    353.
    发明授权
    Method and atmosphere for extending belt life in sintering furnace 有权
    烧结炉延长带寿命的方法和气氛

    公开(公告)号:US08986605B2

    公开(公告)日:2015-03-24

    申请号:US12966440

    申请日:2010-12-13

    Abstract: Disclosed herein is a method and gas atmosphere for a metal component in a continuous furnace. In one embodiment, the method and gas atmosphere comprises the use of an effective amount, or about 1 to about 10 percent volume of endo-gas, into an atmosphere comprising nitrogen and hydrogen. In another embodiment, there is provided a method sintering metal components in a furnace at a one or more operating temperatures comprising: providing a furnace comprising a belt comprising a wire mesh material wherein the metal components are supported thereupon; and sintering the components in the furnace in an atmosphere comprising nitrogen, hydrogen, and effective amount of endothermic gas at the one or more operating temperatures ranging from about 1800° F. to about 2200° F. wherein the amount of endothermic gas in the atmosphere is such that it is oxidizing to the wire mesh material and reducing to the metal components.

    Abstract translation: 本文公开了连续炉中的金属成分的方法和气体气氛。 在一个实施方案中,所述方法和气体气氛包括使用有效量(或约1至约10体积%的内含气体)到包含氮气和氢气的气氛中。 在另一个实施方案中,提供了一种在一个或多个操作温度下在炉中烧结金属组分的方法,包括:提供包括包含金属丝网材料的带的炉子,其中金属组分被支撑在其上; 以及在约1800°F至约2200°F的一个或多个操作温度下,在包括氮气,氢气和有效量的吸热气体的气氛中烧结炉中的组分。其中吸入气体在大气中的量 使得其对金属丝网材料氧化并且还原成金属成分。

    Method for fabricating fine reduced iron powders
    355.
    发明授权
    Method for fabricating fine reduced iron powders 有权
    微细还原铁粉的制造方法

    公开(公告)号:US08940075B2

    公开(公告)日:2015-01-27

    申请号:US13439118

    申请日:2012-04-04

    Abstract: A method for fabricating fine reduced iron powders comprises the following steps: heating fine iron oxide powders having a mean particle size of smaller than 20 μm to a reduction temperature of over 700° C. to reduce the fine iron oxide powder into iron powders that are partially sintered into iron powder agglomerates; and performing a crushing-spheroidizing process on the iron powder agglomerates to obtain individual iron powders having a mean particle size of smaller than 20 μm. The method can reduce iron oxide powers into iron powders having a rounded shape and a high packing density and a high tap density, which are suitable for the metal injection molding process and the inductor fabrication process. The reduced iron powder may further be processed using an annealing process and a second crushing-spheroidizing process in sequence to further increase the sphericity, packing density, and tap density of the reduced iron powder.

    Abstract translation: 一种制造精细还原铁粉的方法包括以下步骤:将平均粒度小于20μm的细小氧化铁粉末加热至700℃以上的还原温度,将氧化铁粉末还原成铁粉末, 部分烧结成铁粉团块; 对铁粉凝聚体进行破碎球化,得到平均粒径小于20μm的各种铁粉。 该方法可以将铁氧化物的功率降低为适合于金属注射成型工艺和电感器制造工艺的具有圆形形状和高填充密度和高振实密度的铁粉末。 还原铁粉可以进一步使用退火工艺和第二破碎球化工艺进行处理,以进一步提高还原铁粉的球形度,填充密度和振实密度。

    Preparation method of Ruthenium(Ru) powder for preparation of Ruthenium target
    360.
    发明申请
    Preparation method of Ruthenium(Ru) powder for preparation of Ruthenium target 审中-公开
    用于制备钌靶的钌(Ru)粉末的制备方法

    公开(公告)号:US20140123810A1

    公开(公告)日:2014-05-08

    申请号:US14115597

    申请日:2012-01-31

    Abstract: The present invention is related to a manufacturing method of high purity and refined Ru (Ruthenium) powder produced by using a waste Ru target. Yield of the target and physical properties of a thin film are improved by producing tremendously refined in which oxygen content of the target is decreased, and a crystal particle size is reduced.In order to obtain these merits, powder having a hollow inside is produced by applying plasma to a waste Ru target. Carbon impurities are selectively removed through a atmospheric heat process and Ru powder is oxidized. Thereby, Ru oxide (RuOx) powder is produced. High purity and refined Ru powder is acquired through a hydrogen atmospheric heat process after pulverizing the produced Ru oxide (RuOx) powder into refined shape.

    Abstract translation: 本发明涉及通过使用废Ru靶产生的高纯度和精制的Ru(钌)粉末的制造方法。 通过生产目标的氧含量降低,并且晶粒尺寸减小的极好的精炼来提高目标的产率和薄膜的物理性能。 为了获得这些优点,通过向废物Ru靶施加等离子体来制造具有中空的粉末。 通过大气热处理选择性去除碳杂质,并且Ru粉末被氧化。 由此,生成Ru氧化物(RuOx)粉末。 将生成的Ru氧化物(RuOx)粉末粉碎成精炼形状后,通过氢气大气热处理获得高纯度和精制的Ru粉末。

Patent Agency Ranking