公开(公告)号：US08110020B2

公开(公告)日：2012-02-07

申请号：US12679555

申请日：2008-09-24

Applicant: Ola Bergman ,  Paul Dudfield Nurthen

Inventor： Ola Bergman ,  Paul Dudfield Nurthen

IPC: B22F1/00 ,  B22F3/12

CPC classification number: C22C1/002 ,  B22F2009/0828 ,  B22F2998/10 ,  C22C33/0292 ,  B22F9/082 ,  B22F1/0085 ,  B22F3/02 ,  B22F3/10

Abstract: An annealed pre-alloyed water atomised iron-based powder suitable for the production of pressed and sintered components having high wear resistance is provided. The iron-based powder comprises 10-below 18% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W, V and Nb, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large M23C6-type carbides in combination with M7C3-type carbides. A method for production of the iron-based powder, a method for producing a pressed and sintered component having high wear resistance, and a component having high wear resistance are provided.

Abstract translation: 提供了适用于生产具有高耐磨性的压制和烧结部件的退火预合金水雾化铁基粉末。 铁基粉末包含10重量％以下的18重量％的Cr，0.5〜5重量％的Mo，W，V和Nb中的至少一种，0.5〜2重量％，优选为0.7〜2重量％ 优选为1-2重量％的C。粉末具有包含小于10重量％的Cr的基体，并且包含与M7C3型碳化物组合的大M23C6型碳化物。 提供铁基粉末的制造方法，具有高耐磨性的压制烧结部件的制造方法以及耐磨性高的部件。

公开(公告)号：US20120014827A1

公开(公告)日：2012-01-19

申请号：US13239614

申请日：2011-09-22

Applicant: Christopher T. Schade

Inventor： Christopher T. Schade

IPC: B22F3/12 ,  B22F3/02

CPC classification number: C22C38/18 ,  B22F2009/0828 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0285 ,  B22F9/082 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/013

Abstract: Provided are corrosion resistant metallurgical powder compositions, corrosion resistant compacted articles prepared from metallurgical powder compositions, and methods of preparing the same. Corrosion resistant metallurgical powder compositions include as a major component, an iron-based powder and, as a minor component, alloy additives that include chromium, and carbon. Upon compaction and sintering, the iron-based powder and alloy additives form a dual phase alloy system. The dual phase alloy system is denoted by an admixed martensite and ferrite microstructure. This unique microstructure results in beneficial physical properties, such as for example, high strength, hardness, and ductility, impact energy, and fatigue endurance, while maintaining resistance to corrosion.

Abstract translation: 提供耐腐蚀冶金粉末组合物，由冶金粉末组合物制备的耐腐蚀压实制品及其制备方法。 耐腐蚀冶金粉末组合物包括作为主要组分的铁基粉末和作为次要组分的包括铬和碳的合金添加剂。 在压实和烧结时，​​铁基粉末和合金添加剂形成双相合金系统。 双相合金系统由混合马氏体和铁素体微观结构表示。 这种独特的微观结构产生有益的物理性能，例如高强度，硬度和延展性，冲击能量和疲劳耐久性，同时保持耐腐蚀性。

公开(公告)号：US20110045174A1

公开(公告)日：2011-02-24

申请号：US12917243

申请日：2010-11-01

Applicant: Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda

Inventor： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda

IPC: B05D5/00

CPC classification number: H01F3/08 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/20 ,  H01F1/24 ,  H01F41/0246 ,  B22F9/082 ,  B22F2201/10 ,  B22F1/007 ,  B22F1/0085 ,  B22F2202/17 ,  B22F1/0062 ,  B22F1/0059 ,  B22F1/0096 ,  B22F3/02 ,  B22F3/24 ,  B22F2009/0828 ,  B22F9/04

Abstract: A method of producing a soft magnetic material is disclosed, wherein the method includes forming a plurality of metal magnetic particles having a ratio of a maximum diameter to an equivalent circle diameter greater than 1.0 and at most 1.3, forming irregularities on a surface of each of the plurality of metal magnetic particles such that a specific surface area of each of the plurality of metal magnetic particles is at least 0.10 m2/g, and coating the plurality of metal magnetic particles with an insulating coating. The irregularities are formed by immersing the plurality of metal magnetic particles in an aqueous sulfuric acid.

Abstract translation: 公开了一种制造软磁性材料的方法，其中该方法包括形成多个金属磁性颗粒，其具有最大直径与当量圆直径的比大于1.0且至多为1.3，在每个的表面上形成凹凸 所述多个金属磁性颗粒使得所述多个金属磁性颗粒中的每一个的比表面积为至少0.10m 2 / g，并且用绝缘涂层涂覆所述多个金属磁性颗粒。 通过将多个金属磁性颗粒浸入硫酸水溶液中形成凹凸。

公开(公告)号：US20050182161A1

公开(公告)日：2005-08-18

申请号：US11028947

申请日：2005-01-03

Applicant: Rajesh Khattar ,  Anil Nadkarni ,  Hsiao Cheng

Inventor： Rajesh Khattar ,  Anil Nadkarni ,  Hsiao Cheng

IPC: B22F1/00 ,  C22C1/04 ,  H01B1/02 ,  H01B1/22 ,  H05K1/09 ,  H05K3/32 ,  C08L63/00

CPC classification number: C22C1/0425 ,  B22F1/0014 ,  B22F2009/0828 ,  B22F2998/10 ,  H01B1/026 ,  H01B1/22 ,  H05K1/095 ,  H05K3/321 ,  B22F9/082 ,  B22F1/0088

Abstract: The present invention provides water atomized copper powder comprising substantially irregular shaped copper particles having at least a median D50 particle size of from about 20 μm or greater to about 50 μm. The powders of the present invention are suitable for use in electrically conductive compositions, such as copper-based adhesives. The present invention also provides methods of making these copper powders.

Abstract translation: 本发明提供水雾化铜粉末，其包含基本上不规则形状的铜颗粒，其至少具有约20μm或更大至约50μm的中等D≤50μm粒径。 本发明的粉末适用于导电组合物，例如铜基粘合剂。 本发明还提供了制造这些铜粉的方法。

公开(公告)号：US20030033903A1

公开(公告)日：2003-02-20

申请号：US09963651

申请日：2001-09-27

Inventor： Anders Bergkvist ,  Sven Allroth ,  Paul Skoglund

IPC: C22C038/18 ,  B22F003/12

CPC classification number: C22C33/02 ,  B22F1/0059 ,  B22F3/087 ,  B22F3/17 ,  B22F2009/0828 ,  B22F2998/10 ,  C22C33/0285 ,  B22F9/082 ,  B22F3/10

Abstract: The invention concerns a method of preparing compacts having a sintered density of above 7.3 g/cm3. This method comprises the steps of subjecting an annealed, water-atomised, essentially carbon free stainless steel powder, which in addition to iron, comprises at least 10% by weight of chromium, not more than 0.4%, preferably not more than 0.3% by weight of oxygen, not more than 0.05%, preferably not more than 0.02% and most preferably not more than 0.015% of carbon, not more than 0.5% by weight of Si and not more than 0.5% of impurities, to HVC compaction with an uniaxial pressure movement with a ram speed of at least 2 m/s, and sintering the green body.

Abstract translation: 本发明涉及一种制备烧结密度高于7.3g / cm3的压块的方法。 该方法包括以下步骤：对退火的，水雾化的，基本上不含碳的不锈钢粉末进行处理，该不锈钢粉末除铁以外，包含至少10重量％的铬，不大于0.4重量％，优选不超过0.3重量％ 不超过0.05％，优选不超过0.02％，最优选不超过0.015％的碳，不超过0.5重量％的Si和不大于0.5重量％的杂质，以HVC压制 单轴压力运动，冲击速度至少为2 m / s，并烧结生坯。

公开(公告)号：US06398125B1

公开(公告)日：2002-06-04

申请号：US09780598

申请日：2001-02-10

Applicant: Junhai Liu ,  Bor Zeng Jang

Inventor： Junhai Liu ,  Bor Zeng Jang

IPC: B05B124

CPC classification number: B82Y30/00 ,  B05B7/224 ,  B22F1/0018 ,  B22F9/082 ,  B22F2009/0828 ,  B22F2009/084 ,  B22F2998/10 ,  B22F2999/00 ,  C01B13/326 ,  C01B17/20 ,  C01B19/004 ,  C01B19/02 ,  C01B21/06 ,  C01G1/02 ,  C01P2004/64 ,  C01P2006/33 ,  C01P2006/34 ,  B22F9/14 ,  B22F2202/13

Abstract: A two-stage process and apparatus for producing nanometer-scaled powders from a metal, the process including (a) operating a first-stage heating and atomizing device to provide a stream of super-heated fine-sized metal liquid droplets into a chamber of a second-stage atomizing device; (b) operating this second-stage atomizing device by directing an atomizing fluid medium to impinge upon the stream of super-heated metal liquid droplets to further break up the metal liquid droplets into substantially nanometer-sized particles; and (c) cooling these particles to form nanometer-sized solid powders. The first-stage heating and atomizing device preferably includes a twin-wire arc spray device. The second-stage atomizing device preferably includes a vortex jet nozzle.

Abstract translation: 一种用于从金属制造纳米级粉末的两阶段方法和装置，该方法包括（a）操作第一级加热和雾化装置，以将过热的细小金属液滴流提供到 第二级雾化装置; （b）通过引导雾化流体介质冲击超级加热的金属液滴流来进一步将金属液滴分解成基本上纳米级的颗粒来操作该第二级雾化装置; 和（c）冷却这些颗粒以形成纳米尺寸的固体粉末。 第一级加热和雾化装置优选地包括双线电弧喷射装置。 第二级雾化装置优选地包括涡流喷嘴。

公开(公告)号：US5846349A

公开(公告)日：1998-12-08

申请号：US798207

申请日：1997-02-10

Applicant: V. Durga Nageswar Rao ,  Robert Alan Rose ,  David Alan Yeager ,  Carlo Alberto Fucinari

Inventor： V. Durga Nageswar Rao ,  Robert Alan Rose ,  David Alan Yeager ,  Carlo Alberto Fucinari

IPC: B22F1/00 ,  C22C32/00 ,  C23C4/06 ,  C23C4/08 ,  C23C4/10 ,  C23C4/16 ,  B22F9/08

CPC classification number: B22F9/082 ,  B22F1/0085 ,  C22C32/0021 ,  C22C32/0026 ,  C23C4/06 ,  C23C4/08 ,  C23C4/11 ,  C23C4/16 ,  B22F2009/0828 ,  B22F2998/00 ,  B22F2999/00

Abstract: An iron or copper based metal powder useful for plasma deposition of a coating that has a dry coefficient of friction 0.75 or less and readily conducts heat through the coating. The powder comprises (a) H.sub.2 O atomized and annealed particles consisting essentially of (by weight) carbon 0.15-0.85%, oxygen 0.1-0.45%, an air hardening agent selected from manganese and nickel of 0.1-6.5%, and the remainder iron or copper, with at least 90% of the particles having oxygen and iron or copper combined in the lowest atomic oxygen form for an oxide of such metal. A method of making anti-friction iron powder that is economical, selectively produces FeO and promotes fine flowable particles. The method comprises (a) steam atomization of a molten steel that excludes other oxygen, the steel containing carbon up to 0.4% by weight to produce a collection of comminuted particles, and (b) annealing the particles in an air atmosphere for a period of time of 0.25-2.0 hours in a temperature range of 800.degree.-1400.degree. F. to reduce carbon in the particles to about 0.2% or sponge iron by reducing Fe.sub.3 O.sub.4 or Fe.sub.2 O.sub.3 in CO and (H.sub.2 O steam) to attain nearly all iron with nearly all FeO and 0.1 to 0.85 C.

Abstract translation: 用于等离子体沉积涂层的铁或铜基金属粉末，其干摩擦系数为0.75或更小，并且容易地通过涂层传导热量。 粉末包含（a）基本上由（重量）碳0.15-0.85％，氧0.1-0.45％，选自锰和镍的0.1-6.5％的空气硬化剂组成的H 2 O雾化和退火的颗粒，其余为铁或 铜，其中至少90％的颗粒具有氧和铁或铜以最低的原子氧形式组合用于这种金属的氧化物。 制备经济的抗摩擦铁粉的方法，选择性地产生FeO并促进细流动颗粒。 该方法包括：（a）排除其它氧气的钢水的蒸汽雾化，含有碳的钢含量高达0.4重量％，以产生粉碎颗粒的集合，和（b）在空气气氛中将颗粒退火一段时间 时间为0.25-2.0小时，通过减少CO和（H 2 O蒸汽）中的Fe 3 O 4或Fe 2 O 3将颗粒中的碳还原成约0.2％或海绵铁，几乎可以获得几乎所有的铁 所有FeO和0.1至0.85C。

公开(公告)号：US4681702A

公开(公告)日：1987-07-21

申请号：US865932

申请日：1986-05-16

Applicant: Horst Schreiner ,  Bernhard Rothkegel

Inventor： Horst Schreiner ,  Bernhard Rothkegel

IPC: C22C5/06 ,  C22C32/00 ,  H01H1/023 ,  H01H1/0237 ,  H01B1/06

CPC classification number: C22C32/0021 ,  H01H1/02376 ,  B22F2009/0828 ,  B22F2998/10

Abstract: Electrical contact materials based on AgCdO with CdO as the main active component have proven to be particularly advantageous for low voltage switchgear in the power industry. However, when switching AgCdO contact materials, CdO, which is classified as toxic, can escape into the environment through burn-off. It is important, therefore, to keep the CdO content as low as possible in the contact material, or to exclude it completely. The contact material according to the invention is a sintered contact material consisting of AgSnO.sub.2 with at least two other metal oxide additives; namely, Bi.sub.2 O.sub.3, CuO and optionally CdO. Relative to SnO.sub.2, these additives Bi.sub.2 O.sub.3, CuO optionally CdO, amount quantitatively to a total maximum of 25 percent by volume of the total amount of oxide.

Abstract translation: 基于AgCdO与CdO作为主要有源元件的电接触材料已经被证明对于电力行业的低压开关设备是特别有利的。 然而，当切换AgCdO接触材料时，被分类为有毒物质的CdO可以通过烧掉而逃逸到环境中。 因此，在接触材料中保持尽可能低的CdO含量或将其完全排除是重要的。 根据本发明的接触材料是由AgSnO 2与至少两种其它金属氧化物添加剂组成的烧结接触材料; 即Bi2O3，CuO和任选的CdO。 相对于SnO 2，这些添加剂Bi 2 O 3，CuO任选地CdO定量地总量达到氧化物总量的25体积％。

公开(公告)号：US4664855A

公开(公告)日：1987-05-12

申请号：US796813

申请日：1985-11-12

Applicant: David L. Tremblay ,  Kamal Asgar

Inventor： David L. Tremblay ,  Kamal Asgar

IPC: B22F9/04 ,  A61K6/05 ,  B22F1/00 ,  B22F9/08 ,  C22C1/04 ,  B29B9/00

CPC classification number: B22F9/082 ,  A61K6/05 ,  B22F1/0085 ,  C22C1/04 ,  B22F2009/0828 ,  Y10S75/955

Abstract: A process for manufacturing an atomized amalgamable alloy having mold adaptation characteristics superior to other atomized alloys and comparable or better than those for ad-mixed type alloys (alloys which are mixtures of spherical and irregularly shaped particles), and physical properties comparable to ad-mixed alloys. The process includes the steps of: producing a melt of an amalgamable alloy; atomizing the alloy so as to form particles which are primarily irregular in shape; collecting the particles; drying the particles; mechanically working the particles so as to fracture and change their shape; classifying the particles to finer than 53 microns; heat treating the particles; and reducing oxides from the surface of the particles.

Abstract translation: 具有优于其它雾化合金的模具适应特性的可变或易于混合型合金（合金为球形和不规则形状的颗粒的混合物）的雾化合金合金的制造方法，以及与混合混合的物理性能 合金。 该方法包括以下步骤：制备可合金合金的熔体; 雾化合金以形成主要形状不规则的颗粒; 收集颗粒; 干燥颗粒; 对颗粒进行机械加工以破坏和改变其形状; 将颗粒分级至53微米以下; 热处理颗粒; 并从颗粒表面还原氧化物。

公开(公告)号：US4170466A

公开(公告)日：1979-10-09

申请号：US950381

申请日：1978-10-11

Applicant: Erhard Klar

Inventor： Erhard Klar

IPC: B22F9/08 ,  C22C1/04 ,  B22D23/08

CPC classification number: B22F9/082 ,  C22C1/0425 ,  B22F2009/0828

Abstract: A water atomization process for producing fine metal particles includes the improvement step of alloying a minor amount of silicon with copper and a metal selected from manganese, chromium, and zirconium.

Abstract translation: 用于制造金属微粒的水雾化方法包括将少量硅与铜和选自锰，铬和锆的金属合金化的改进步骤。