利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

48 条记录 (耗时 0.017 秒)

    Metal-based powder compositions containing silicon carbide as an alloying powder
    31.
    发明申请
    Metal-based powder compositions containing silicon carbide as an alloying powder 失效
    含有碳化硅作为合金粉末的金属粉末组合物

    公开(公告)号：US20020073803A1

    公开(公告)日：2002-06-20

    申请号：US10008065

    申请日：2001-11-05

    申请人： Hoeganaes Corporation

    发明人： Kalathur S. Narasimhan ,  Nikhilesh Chawla

    IPC分类号： B22F001/00 ,  C22C001/05 ,  B22F007/00

    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.

    摘要翻译： 提供了包括碳化硅以增强由其制成的压实和烧结部件的强度，延展性和机械性能的冶金粉末组合物。 组合物通常含有构成组合物主要部分的金属粉末，例如铁基粉末。 将含碳化硅的粉末与金属粉末共混，优选为碳化硅粉末的形式。 任选地，常规的合金粉末，润滑剂，粘合剂和其它粉末冶金添加剂可以掺入到冶金组合物中。 冶金粉末组合物通过在模腔中压实使用，以产生“绿色”压块，然后将其烧结，优选在较高温度下进行烧结。

    Lubricants for die lubrication and manufacturing method for high density iron-based powder compacts
    32.
    发明申请
    Lubricants for die lubrication and manufacturing method for high density iron-based powder compacts 失效
    用于模具润滑的润滑剂和用于高密度铁基粉末压块的制造方法

    公开(公告)号：US20010038802A1

    公开(公告)日：2001-11-08

    申请号：US09817171

    申请日：2001-03-27

    申请人： KAWASAKI STEEL CORPORATION

    发明人： Yukiko Ozaki ,  Satoshi Uenosono ,  Shigeru Unami

    IPC分类号： B22F001/00 ,  C22C001/05

    CPC分类号： B22F1/0077 ,  B22F1/0059 ,  B22F2998/00 ,  B22F2999/00 ,  B30B15/0011 ,  B22F2003/023 ,  B22F2003/026 ,  B22F2202/06

    摘要： A manufacturing method for high-density iron-based powder compacts is disclosed. The temperature of the die is adjusted at ordinary temperature or at a predetermined temperature by preheating. A lubricant for die lubrication prepared by mixing at least two different lubricants having melting points higher than a predetermined temperature of the compaction pressure is sprayed at the upper part of the die and is introduced into the die and adhered by electrification to the surface of the die. The resulting die is filled with an iron-based mixed powder including a lubricant and molding is performed at ordinary temperature or at a temperature raised by heating. The at least two different lubricants having melting points higher than the predetermined temperature of the compaction pressure are preferably at least two materials selected from at least one of the following groups: metallic soaps, amide-based waxes, polyamides, polyethylenes, polypropylenes, polymers comprised of acrylic acid esters, polymers having methacrylic acid ester, plastics including fluorine and lubricants having layered crystal structures.

    摘要翻译： 公开了一种高密度铁基粉末压块的制造方法。 通过预热将模具的温度调节到常温或预定温度。 通过将熔点高于压缩压力的预定温度的至少两种不同的润滑剂混合制备的用于模具润滑的润滑剂在模具的上部喷射并被引入模具中并通过带电粘附到模具的表面 。 所得模具填充有包含润滑剂的铁基混合粉末，并且在常温或通过加热升高的温度下进行成型。 具有高于压实压力的预定温度的熔点的至少两种不同润滑剂优选为至少两种选自以下组中的至少一种：金属皂，酰胺类蜡，聚酰胺，聚乙烯，聚丙烯，聚合物 的丙烯酸酯，具有甲基丙烯酸酯的聚合物，包含氟的塑料和具有层状晶体结构的润滑剂。

    Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste
    33.
    发明申请
    Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste 有权
    铜颗粒簇和粉末含有与导电胶的导电填料相同的粉末

    公开(公告)号：US20010003362A1

    公开(公告)日：2001-06-14

    申请号：US09741024

    申请日：2000-12-21

    申请人： DOW A MINING CO., LTD.

    发明人： Kazushi Sano ,  Yoshihiro Okada ,  Hiromasa Miyoshi ,  Yoshiomi Takada

    IPC分类号： H01B001/02 ,  B22F001/00 ,  B22F001/02 ,  C22C001/05 ,  H01C001/00

    CPC分类号： C09D5/24 ,  B22F1/0014 ,  B22F1/0096 ,  B22F9/24 ,  H01B1/026 ,  H01C7/027 ,  H05K1/095 ,  Y10T428/2982

    摘要： Copper particle clusters constituting a powder suitable for making a conductive paste are provided that are individually composed of not fewer than two and not more than 20 unit particles joined through neck portions. A conductive paste made from the powder is excellent in conductivity. A conductive filler for conductive paste is provided that consists essentially of a mixture of copper particle clusters A individually composed of two or more unit particles joined through neck portions and spherical metallic particles B of smaller diameter than the particles A. A conductive paste made from the filler is low in viscosity and excellent in conductivity.

    摘要翻译： 提供构成适于制造导电浆料的粉末的铜颗粒簇，其分别由不少于2个且不超过20个通过颈部连接的单位颗粒构成。 由粉末制成的导电膏具有优异的导电性。 提供一种用于导电膏的导电填料，其基本上由单独由两个或更多个通过颈部连接的单元颗粒组成的铜颗粒簇A和直径小于颗粒A的球形金属颗粒B的混合物组成。由 填料粘度低，导电性好。

    Binder for powder metallurgy, mixed powder for powder metallurgy and method for producing same
    35.
    发明申请
    Binder for powder metallurgy, mixed powder for powder metallurgy and method for producing same 有权
    粉末冶金用粘结剂，粉末冶金用混合粉末及其制造方法

    公开(公告)号：US20040168547A1

    公开(公告)日：2004-09-02

    申请号：US10782850

    申请日：2004-02-23

    申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

    发明人： Kazuhisa Fujisawa ,  Hironori Suzuki

    IPC分类号： C22C001/05

    CPC分类号： B22F1/0059

    摘要： The invention aims to provide a binder for powder metallurgy, the binder containing an epoxy resin which is liquid at room temperature and a curing agent having at least one functional group selected from the group consisting of amino, mercapto and carboxyl groups. The binder involves few problems in point of workability and safety, suppress the scattering of graphite, and is superior in powder characteristics. The invention also provides a mixed powder for powder metallurgy using the binder and a method for producing the mixed powder.

    摘要翻译： 本发明的目的在于提供一种粉末冶金用粘合剂，含有室温下为液态的环氧树脂的粘合剂和具有至少一种选自氨基，巯基和羧基的官能团的固化剂。 粘合剂在可加工性和安全性方面几乎没有问题，抑制石墨的散射，并且粉末特性优异。 本发明还提供了使用粘合剂的粉末冶金用混合粉末和混合粉末的制造方法。

    Powder metallurgy lubricant compositions and methods for using the same
    39.
    发明申请
    Powder metallurgy lubricant compositions and methods for using the same 失效
    粉末冶金润滑剂组合物及其使用方法

    公开(公告)号：US20030140730A1

    公开(公告)日：2003-07-31

    申请号：US10056965

    申请日：2002-01-25

    发明人： Sydney Luk ,  George Poszmik

    IPC分类号： C22C001/05

    CPC分类号： B22F1/0059 ,  B22F2003/023

    摘要： The present invention relates to improved metallurgical powder compositions that incorporate solid lubricants, methods for preparing and using the same, and methods of making compacted parts. Ejection properties, such as stripping pressure and sliding pressure, of compacted parts can be improved by using the solid lubricants. The solid lubricants contain functionalized polyalkylene lubricants have the formula: R1nullQnullR2 where Q is a linear or branched, polyalkylene containing from about 10 to about 200 carbon atoms, and R1 and R2 are each independently a hydroxyl group, a carboxylic acid group or a metal salt thereof, an amine group, a mono- or di-C1 to C25 alkyl substituted amine group, or an alkylene oxide group having the formula: nullnull(CH2)qOnullnH where q is from about 1 to about 7, n is from about 1 to about 100.

    摘要翻译： 本发明涉及掺入固体润滑剂的改进的冶金粉末组合物，其制备和使用方法，以及制造压实部件的方法。 通过使用固体润滑剂可以提高压实部件的喷射性能，如剥离压力和滑动压力。 固体润滑剂含有官能化的聚亚烷基润滑剂，其具有下式：R 1 -Q-R 2，其中Q是含有约10至约200个碳原子的直链或支链的聚亚烷基，并且R 1和R 2各自独立地是羟基，羧酸基 或其金属盐，胺基，一或二-C 1至C 25烷基取代的胺基或具有下式的环氧烷基： - [（CH 2）q O] n H其中q为约1至约7 ，n为约1至约100。

    Powder metal materials having high temperature wear and corrosion resistance
    40.
    发明申请
    Powder metal materials having high temperature wear and corrosion resistance 有权
    粉末金属材料具有高温耐磨和耐腐蚀性

    公开(公告)号：US20030110888A1

    公开(公告)日：2003-06-19

    申请号：US10000581

    申请日：2001-10-24

    发明人： John C. Kosco

    IPC分类号： C22C001/04 ,  C22C001/05

    CPC分类号： C22C33/0242 ,  C22C1/05 ,  C22C33/0228 ,  F01L2101/02

    摘要： A method of forming a powder metal material or article includes the steps of molding a compact from a metallurgical powder, and then sintering the compact. The metallurgical powder may include at least one of a stainless steel powder and a low-chromium steel-base powder, and about 0.5 to about 15 weight percent of glass powder. Alternatively, the metallurgical powder may include at least one of a stainless steel powder and a low-chromium steel-base powder, about 3 to about 15 weight percent molybdenum, and about 1 to about 15 weight percent of nickel-base alloy powder. The present invention also is directed to metallurgical powders useful in and materials and articles made by the methods of the present invention. Such articles include, but are not limited to, valve guides for internal combustion engine EGR systems, valve seats, exhaust system components, combustion chambers, other combustion engine parts subjected to high temperature, and chemical industry valve and corrosion parts.

    摘要翻译： 形成粉末金属材料或制品的方法包括以下步骤：从冶金粉末成型压块，然后烧结该压块。 冶金粉末可以包括不锈钢粉末和低铬钢基粉末以及约0.5至约15重量％的玻璃粉末中的至少一种。 或者，冶金粉末可以包括不锈钢粉末和低铬钢基粉末，约3至约15重量％的钼和约1至约15重量％的镍基合金粉末中的至少一种。 本发明还涉及可用于本发明方法制造的材料和制品的冶金粉末。 这些制品包括但不限于用于内燃机EGR系统，阀座，排气系统部件，燃烧室，经受高温的其他内燃机部件，化学工业阀和腐蚀部件的阀导向器。