Powder metallurgy lubricant compositions and methods for using the same
    2.
    发明授权
    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:US06802885B2

    公开(公告)日:2004-10-12

    申请号:US10056965

    申请日:2002-01-25

    IPC分类号: B22F100

    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: R1—Q—R2 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: —[(CH2)qO]nH 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,具有下式:R1-Q-R2,其中Q是含约10至约200个碳原子的直链或支链聚亚烷基,R1和R2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。

    Niobium powder for capacitor, sintered body thereof and capacitor using the sintered body
    4.
    发明授权
    Niobium powder for capacitor, sintered body thereof and capacitor using the sintered body 有权
    用于电容器的铌粉末,其烧结体和使用该烧结体的电容器

    公开(公告)号:US06755884B2

    公开(公告)日:2004-06-29

    申请号:US10182205

    申请日:2002-07-26

    IPC分类号: B22F100

    摘要: A niobium powder for capacitors, having an average particle size of from 10 to 500 &mgr;m, which is a granulated powder having an oxygen content of 3 to 9% by mass; a sintered body thereof; and a capacitor fabricated from the sintered body as one part electrode, a dielectric material formed on the surface of the sintered body, and another part electrode provided on the dielectric material. A capacitor manufactured from the sintered body of a niobium powder of the present invention is prevented from deterioration in the performance for a long period of time and has high reliability.

    摘要翻译: 一种电容器用铌粉,其平均粒径为10〜500μm,为氧含量为3〜9质量%的造粒粉末; 其烧结体; 以及由烧结体制成的电容器作为一部分电极,形成在烧结体表面上的电介质材料和设置在电介质材料上的另一部分电极。 由本发明的铌粉末烧结体制成的电容器长时间不发生性能劣化,可靠性高。

    Method of making cemented carbide
    6.
    发明授权
    Method of making cemented carbide 有权
    制造硬质合金的方法

    公开(公告)号:US06673307B1

    公开(公告)日:2004-01-06

    申请号:US09743090

    申请日:2001-03-28

    IPC分类号: B22F100

    摘要: The present invention relates to a method of making a cemented carbide by mixing powder of WC and possibly other powders forming hard constituents and binder phase and pressing agent, drying, pressing and sintering whereby; the mixing is wet mixing with no change in grain size or grain size distribution of the hard constituent powders; the WC grains are coated with binder metal and deagglomerated prior to the mixing. The sintering is made by microwave sintering at 1325-1410° C. with a holding time of 5-15 min. As a result a cemented carbide with improved properties is obtained.

    摘要翻译: 本发明涉及通过混合WC的粉末和可能的其它形成硬成分的粉末和粘结相和压制剂,干燥,压制和烧结来制造硬质合金的方法; 混合是湿混合,硬组分粉末的粒度或粒度分布没有变化; WC颗粒在粘合剂金属之前被涂覆并在混合之前被解聚。 通过微波烧结在1325-1410℃进行烧结,保持时间为5-15分钟。 结果得到具有改进性能的硬质合金。

    Continuous method for reusing coating powder waste and coating powders thus obtained
    8.
    发明授权
    Continuous method for reusing coating powder waste and coating powders thus obtained 失效
    重复使用涂料粉末废料和涂覆粉末的连续方法

    公开(公告)号:US06500385B1

    公开(公告)日:2002-12-31

    申请号:US09529748

    申请日:2000-04-19

    IPC分类号: B22F100

    摘要: Process for working up powder coating waste to yield reusable powder coatings by compacting the powder coating waste without complete melting to yield a sintered product, in which process powder coating residues arising during powder coating production are continuously separated, continuously compacted and the compacted product is continuously ground together with fresh material to be ground of the same batch of powder coating without extrusion to yield a powder coating.

    摘要翻译: 处理粉末涂料废弃物的方法,通过压实粉末涂料废物而不完全熔化产生可重复使用的粉末涂料,产生烧结产品,其中粉末涂料生产过程中产生的粉末涂料残留物连续分离,连续压实,压实产品连续 与新鲜的材料一起研磨,同时对同一批粉末涂料进行研磨,而不会挤出,从而产生粉末涂料。

    Mn-Zn ferrite and production process thereof
    9.
    发明授权
    Mn-Zn ferrite and production process thereof 失效
    锰锌铁氧体及其制备方法

    公开(公告)号:US06440323B1

    公开(公告)日:2002-08-27

    申请号:US09690902

    申请日:2000-10-18

    IPC分类号: B22F100

    摘要: This invention provides a Mn—Zn ferrite which has a high electrical resistance and can sufficiently satisfy the use in a high frequency region exceeding 1 MHz. This invention further provides a production process of the Mn—Zn ferrite in which mixed powder whose components are adjusted so as to have a basic component composition containing 44.0 to 50.0 mol% Fe2O3, 4.0 to 26.5 mol % ZnO, 0.1 to 8.0 mol % one or two from TiO2 and SnO2 and the remainder consisting of MnO, and further to contain 0.01 to 2.00 mass % one or more of CoO, NiO, and MgO as additive is pressed, then sintered and cooled in the air or in an atmosphere containing some amount of oxygen.

    摘要翻译: 本发明提供一种具有高电阻并能够充分满足超过1MHz的高频区域的用途的Mn-Zn铁氧体。 本发明还提供了一种Mn-Zn铁氧体的制造方法,其中调整成分为具有含有44.0〜50.0摩尔%的Fe 2 O 3,4.0〜26.5摩尔%的ZnO,0.1〜8.0摩尔%的ZnO的碱性成分组成的混合粉末 或者两个来自TiO 2和SnO 2,剩余部分由MnO组成,并且还含有0.01至2.00质量%的一种或多种CoO,NiO和MgO作为添加剂,然后在空气中或在含有一部分的气氛中烧结和冷却 氧气量。

    Synthesis of nanostructured composite particles using a polyol process
    10.
    发明授权
    Synthesis of nanostructured composite particles using a polyol process 失效
    使用多元醇工艺合成纳米结构复合颗粒

    公开(公告)号:US06436167B1

    公开(公告)日:2002-08-20

    申请号:US08645397

    申请日:1996-05-13

    IPC分类号: B22F100

    摘要: The present invention is a polyol method for making composite particles of two or more immiscible transition metals, where these particles are of nanoscale dimensions, and where the constituent metals are of essentially nanocrystalline morphology. The method of the invention has the steps of (1) dissolving or suspending two or more precursor metal compounds in an alcohol or polyol (diol, triol, etc.) solution, and (2) taking the solution or suspension to a temperature where the metal compound reduces, causing the first and second metals to form nanoscale composites. The term “polyol solution” will be used herein to describe solutions that contain either alcohol or polyol.

    摘要翻译: 本发明是用于制备两种或更多种不混溶的过渡金属的复合颗粒的多元醇方法,其中这些颗粒具有纳米级尺寸,并且组成金属基本上是纳米晶体形态。 本发明的方法具有以下步骤:(1)将两种或更多种前体金属化合物溶解或悬浮在醇或多元醇(二醇,三醇等)溶液中,和(2)将溶液或悬浮液置于 金属化合物减少,导致第一和第二金属形成纳米级复合材料。 本文中将使用术语“多元醇溶液”来描述含有醇或多元醇的溶液。