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48 条记录 (耗时 0.014 秒)

    Metal-based powder compositions containing silicon carbide as an alloying powder
    1.
    发明申请
    Metal-based powder compositions containing silicon carbide as an alloying powder 审中-公开

    公开(公告)号：US20040226403A1

    公开(公告)日：2004-11-18

    申请号：US10734048

    申请日：2003-12-10

    申请人： Hoeganaes Corporation

    发明人： Kalathur S. Narasimhan ,  Nikhilesh Chawla

    IPC分类号： C22C001/05

    CPC分类号： C22C33/0228 ,  B22F2998/10 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10 ,  B22F9/082 ,  B22F3/12

    摘要： Metallurgical powder compositions are provided that include silicon carbide to enhance the strength, ductility, and machine-ability of the compacted and sintered parts made therefrom. The compositions generally contain a metal powder, such as an iron-based powder, that constitutes the major portion of the composition. A silicon carbide-containing powder is blended with the metal powder, preferably in the form of a silicon carbide powder. Optionally, common alloying powders, lubricants, binding agents, and other powder metallurgy additives can be blended into the metallurgical composition. The metallurgical powder composition is used by compacting it in a die cavity to produce a nullgreennull compact that is then sintered, preferably at relatively high temperatures.

    Terminal electrode compositions for multilayer ceramic capacitors
    4.
    发明申请
    Terminal electrode compositions for multilayer ceramic capacitors 失效
    多层陶瓷电容器的端电极组合物

    公开(公告)号：US20040144205A1

    公开(公告)日：2004-07-29

    申请号：US10670669

    申请日：2003-09-25

    发明人： Hisashi Matsuno ,  Hiroyuki Soshi

    IPC分类号： C22C001/05

    CPC分类号： H01G4/2325

    摘要： The present invention relates to terminal electrode compositions for multilayer ceramic capacitors. More specifically, it relates to terminal electrode compositions for multilayer ceramic capacitors which have a metal oxide component selected from SnO2, V2O5 and MoO3. The compositions can be fired at a low temperature in a nitrogen atmosphere.

    摘要翻译： 本发明涉及多层陶瓷电容器的端子电极组合物。 更具体地，本发明涉及具有选自SnO 2，V 2 O 5和MoO 3的金属氧化物组分的多层陶瓷电容器的端子电极组合物。 组合物可以在氮气气氛中在低温下烧制。

    Nanomaterials of composite metal oxides
    5.
    发明申请
    Nanomaterials of composite metal oxides 审中-公开
    复合金属氧化物纳米材料

    公开(公告)号：US20030047028A1

    公开(公告)日：2003-03-13

    申请号：US10214353

    申请日：2002-08-08

    发明人： Toyoki Kunitake ,  Izumi Ichinose ,  Rie Takaki ,  Junhui He

    IPC分类号： C22C029/00 ,  C22C001/05

    CPC分类号： C01G23/053 ,  C01B13/32 ,  C01P2002/02 ,  C01P2006/16 ,  C01P2006/90

    摘要： Exchangeable metal ions are removed from an amorphous composite metal oxide and different metal ions are introduced to manufacture a nanomaterial of composite metal oxide. Based on this method, it is possible to reliably form composite metal oxide nanomaterials over a wide range of compositions.

    摘要翻译： 从非晶复合金属氧化物中除去可交换的金属离子，引入不同的金属离子以制造复合金属氧化物的纳米材料。 基于该方法，可以在宽范围的组合物下可靠地形成复合金属氧化物纳米材料。

    Niobium powder, sintered body thereof, and capacitor using the same
    6.
    发明申请
    Niobium powder, sintered body thereof, and capacitor using the same 有权
    铌粉末，其烧结体和使用其的电容器

    公开(公告)号：US20020064476A1

    公开(公告)日：2002-05-30

    申请号：US09925686

    申请日：2001-08-10

    申请人： SHOWA DENKO K.K.

    发明人： Kazuhiro Omori ,  Kazumi Naito

    IPC分类号： B22F001/00 ,  C22C001/05 ,  B22F001/02

    CPC分类号： H01G9/0525 ,  B22F2998/00 ,  C22C1/045 ,  H01G9/028 ,  B22F1/0088 ,  B22F1/0096

    摘要： A niobium powder comprising at least one element selected from the group consisting of chromium, molybdenum, tungsten, boron, aluminum, gallium, indium, thallium, cerium, neodymium, titanium, rhenium, ruthenium, rhodium, palladium, silver, zinc, silicon, germanium, tin, phosphorus, arsenic, bismuth, rubidium, cesium, magnesium, strontium, barium, scandium, yttrium, lanthanum, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, hafnium, vanadium, osmium, iridium, platinum, gold, cadmium, mercury, lead, selenium and tellurium; a sintered body of the niobium powder; and a capacitor comprising a sintered body as one electrode, a dielectric material formed on the surface of the sintered body, and counter electrode provided on the dielectric material.

    摘要翻译： 包含选自铬，钼，钨，硼，铝，镓，铟，铊，铈，钕，钛，铼，钌，铑，钯，银，锌，硅中的至少一种元素的铌粉末， 锗，锑，铽，铋，ium，镱，bium，ium，bium，bium，ium，ium，mium，mium， 钒，锇，铱，铂，金，镉，汞，铅，硒和碲; 铌粉末的烧结体; 以及电容器，其包括作为一个电极的烧结体，形成在所述烧结体的表面上的电介质材料和设置在所述电介质材料上的对电极。

    Pre-alloyed iron based powder
    8.
    发明申请
    Pre-alloyed iron based powder 审中-公开
    预合金铁基粉末

    公开(公告)号：US20030233911A1

    公开(公告)日：2003-12-25

    申请号：US10208819

    申请日：2002-08-01

    发明人： Ulf Engstrom ,  Sigurd Berg

    IPC分类号： C22C001/05

    CPC分类号： C22C38/004 ,  B22F2998/10 ,  C22C33/0264 ,  C22C38/04 ,  C22C38/20 ,  C22C38/22 ,  B22F9/082 ,  C22C33/0207 ,  B22F3/02 ,  B22F3/10 ,  B22F1/0003

    摘要： The invention concerns a new pre alloyed steel powder comprising in addition to iron and inevitable impurities, by wt %, 1.3-1.7% by weight of Cr, 0.15-0.3% by weight of Mo, 0.09-0.3% by weight of Mn, not larger than 0.01 by weight of C, not larger than 0.25% of O.

    摘要翻译： 本发明涉及一种新的预合金钢粉，除了铁和不可避免的杂质外，还含有重量百分比为1.3-1.7％（重量）的Cr，0.15-0.3％（重量）的Mo，0.09-0.3％（重量）的Mn， 大于0.01重量％的C，不大于0.25的O.

    Sintered alloy having wear resistance for valve seat and method for manufacturing the same
    9.
    发明申请
    Sintered alloy having wear resistance for valve seat and method for manufacturing the same 审中-公开
    具有阀座耐磨性的烧结合金及其制造方法

    公开(公告)号：US20030233910A1

    公开(公告)日：2003-12-25

    申请号：US10334941

    申请日：2002-12-31

    发明人： Lim Ho Jeong ,  Kwang Ho Song ,  Jung Seok Oh ,  Jong Dae Lim

    IPC分类号： C22C001/05

    CPC分类号： C22C38/22 ,  C22C33/0228 ,  C22C33/0242 ,  C22C33/0278 ,  C22C38/04 ,  C22C38/24 ,  C22C38/30 ,  C22C38/60

    摘要： A sintered alloy having an improved wear resistance and a workability for a valve seat. The alloy contains iron as a main component, carbon, silicon, chromium, molybdenum, cobalt, maganese, lead, vanadium, advantageously boron nitride, and tungsten. The strength, wear resistance, and material properties are improved by a sub-zero treatment. Sintered alloy with wear resistance used for a valve seat comprises Fe as a main component, C of 1.2 to 1.7 wt %, Cr of 3.5 to 5.0 wt %, Mo of 2.0 to 4.0 wt %, V of 3.0 to 5.0 wt %, W of 7.0 to 10.0 wt %, Co of 2.0 to 3.5 wt %, boron nitride of 0.1 to 1.0 wt %, S of 0.2 to 0.4 wt %, Mn of 0.2 to 0.5 wt %, advantageously 0.2 to 0.6% Si, and Pb of 10.0 to 15.0 wt %. Sintered alloy for an valve seat is manufactured by a sub-zero treatment so that the amount of metallic particles separated from a base matrix decreases and a size of the separated metallic particle becomes small.

    摘要翻译： 具有改进的耐磨性和阀座的可加工性的烧结合金。 该合金含有铁作为主要成分，碳，硅，铬，钼，钴，锰，铅，钒，有利地是氮化硼和钨。 通过次零处理改善了强度，耐磨性和材料性能。 用于阀座的耐磨性的烧结合金包括Fe作为主要成分，C为1.2〜1.7重量％，Cr为3.5〜5.0重量％，Mo为2.0〜4.0重量％，V为3.0〜5.0重量％，W 为7.0〜10.0重量％，Co为2.0〜3.5重量％，氮化硼为0.1〜1.0重量％，S为0.2〜0.4重量％，Mn为0.2〜0.5重量％，Si为0.2〜0.6重量％，Pb为 10.0〜15.0重量％。 通过零下处理制造用于阀座的烧结合金，使得从基础基体分离的金属颗粒的量减少，并且分离的金属颗粒的尺寸变小。

    Iron-based mixed powder for powder metallurgy and iron-based sintered compact
    10.
    发明申请
    Iron-based mixed powder for powder metallurgy and iron-based sintered compact 失效
    用于粉末冶金和铁基烧结体的铁基混合粉末

    公开(公告)号：US20030075016A1

    公开(公告)日：2003-04-24

    申请号：US10080234

    申请日：2002-02-21

    申请人： Kawasaki Steel Corporation

    发明人： Satoshi Uenosono ,  Junichi Ohta ,  Akio Sonobe

    IPC分类号： C22C001/05

    CPC分类号： C22C33/0228 ,  B22F2003/023 ,  B22F2998/00 ,  B22F1/0096

    摘要： In order to improve machinability of a sintered compact, a phosphate compound of an alkali earth metal (calcium phosphate compound or the like) is mixed with an iron-based powder, or an alkali earth metal fluoride (calcium fluoride, or the like) is further mixed with the iron-based powder. Alternatively, the alkali earth metal fluoride, together with a graphite powder, is preferably fixed to recesses of the iron-based powder.

    摘要翻译： 为了提高烧结体的机械加工性，将碱土金属（磷酸钙化合物等）的磷酸盐化合物与铁系粉末或碱土金属氟化物（氟化钙等）混合， 进一步与铁基粉末混合。 或者，碱土金属氟化物与石墨粉末一起优选固定在铁基粉末的凹部上。