Method of making metal-based compacted components and metal-based powder compositions suitable for cold compaction
    1.
    发明授权
    Method of making metal-based compacted components and metal-based powder compositions suitable for cold compaction 有权
    制备金属基压实组分的方法和适用于冷压实的金属基粉末组合物

    公开(公告)号:US06534564B2

    公开(公告)日:2003-03-18

    申请号:US09865082

    申请日:2001-05-24

    IPC分类号: B22C100

    摘要: A method is provided for compacting metal-based powder compositions containing at least one thermoplastic material at temperatures below the glass transition temperature or melting temperature of the thermoplastic material to form a metal-based component. Preferably, compaction is carried out at temperatures ranging from ambient to about 55° C. The method of the present invention is particularly useful for making magnetic core components. The present invention also provides metal-based powder compositions useful for cold compaction. The metal based powder compositions contain metal-based particles containing no iron phosphate layer; a thermoplastic material selected from polyetherimides, polyphenylene ethers, polyethersulfones, polycarbonates, polyethylene glycol, polyvinyl acetate, polyvinyl alcohol or combinations thereof, and an oligomer of a polyamide.

    摘要翻译: 提供了一种用于在低于热塑性材料的玻璃化转变温度或熔融温度的温度下压制含有至少一种热塑性材料的金属基粉末组合物以形成金属基组分的方法。 优选地,在环境温度至约55℃的温度下进行压实。本发明的方法对于制造磁芯组件特别有用。 本发明还提供了用于冷压缩的金属基粉末组合物。 金属粉末组合物含有不含铁磷酸盐层的金属类颗粒; 选自聚醚酰亚胺,聚苯醚,聚醚砜,聚碳酸酯,聚乙二醇,聚乙酸乙烯酯,聚乙烯醇或其组合的热塑性材料和聚酰胺的低聚物。

    Iron-based powder compositions containing green strength enhancing
lubricants
    2.
    发明授权
    Iron-based powder compositions containing green strength enhancing lubricants 失效
    含有强度增强润滑剂的铁基粉末组合物

    公开(公告)号:US6039784A

    公开(公告)日:2000-03-21

    申请号:US820371

    申请日:1997-03-12

    申请人: Sydney Luk

    发明人: Sydney Luk

    摘要: Metallurgical powder compositions are provided that contain a metal powder that is associated with a polymeric material in admixture with a solid, particulate polyether lubricant. The incorporation of the polyether lubricant enhances the green strength properties of compacted parts made from the powder compositions, and generally reduces the ejection forces required to remove the compacted part from the die cavity.

    摘要翻译: 提供了包含与聚合物材料相结合的金属粉末的冶金粉末组合物,其与固体颗粒状聚醚润滑剂混合。 聚醚润滑剂的加入增强了由粉末组合物制成的压实部件的生坯强度性能,并且通常降低了从模腔中移除压实部件所需的喷射力。

    Iron-based powder compositions containing green strength enhancing
lubricants
    3.
    发明授权
    Iron-based powder compositions containing green strength enhancing lubricants 失效
    含有强度增强润滑剂的铁基粉末组合物

    公开(公告)号:US5624631A

    公开(公告)日:1997-04-29

    申请号:US468439

    申请日:1995-06-06

    申请人: Sydney Luk

    发明人: Sydney Luk

    CPC分类号: B22F1/0059 B22F2998/00

    摘要: Metallurgical powder compositions are provided which contain a metal powder in admixture with a solid, particulate polyether lubricant. The incorporation of the polyether lubricant enhances the green strength properties of compacted parts made from the powder compositions, and generally reduces the ejection forces required to remove the compacted part from the die cavity.

    摘要翻译: 提供了含有与固体颗粒状聚醚润滑剂混合的金属粉末的冶金粉末组合物。 聚醚润滑剂的加入增强了由粉末组合物制成的压实部件的生坯强度性能,并且通常降低了从模腔中移除压实部件所需的喷射力。

    Iron-based metallurgical compositions containing flow agents and methods
for using same
    4.
    发明授权
    Iron-based metallurgical compositions containing flow agents and methods for using same 失效
    含有流动剂的铁基冶金组合物及其使用方法

    公开(公告)号:US5782954A

    公开(公告)日:1998-07-21

    申请号:US482012

    申请日:1995-06-07

    申请人: Sydney Luk

    发明人: Sydney Luk

    IPC分类号: B22F1/00 C22C33/02 B22F3/12

    摘要: The present invention provides for iron-based metallurgical powder compositions that contain nanoparticle metal or metal oxide flow agents useful for enhancing the flow characteristics of the compositions, particularly at elevated processing temperatures. The iron-based powder compositions can be advantageously blended with a flow agent such as a silicon oxide or iron oxide, or a combination of both, to provide a powder composition having improved flow properties and ejection release characteristics.

    摘要翻译: 本发明提供含铁纳米金属或金属氧化物流动剂的铁基冶金粉末组合物,其可用于增强组合物的流动特性,特别是在升高的加工温度下。 铁基粉末组合物可以有利地与诸如氧化硅或氧化铁的流动剂或两者的组合共混,以提供具有改善的流动性质和脱模特性的粉末组合物。

    Iron-based powder compositions containing green strengh enhancing
lubricants
    6.
    发明授权
    Iron-based powder compositions containing green strengh enhancing lubricants 失效
    含有绿色增强润滑剂的铁基粉末组合物

    公开(公告)号:US5498276A

    公开(公告)日:1996-03-12

    申请号:US306209

    申请日:1994-09-14

    申请人: Sydney Luk

    发明人: Sydney Luk

    CPC分类号: B22F1/0059 B22F2998/00

    摘要: Metallurgical powder compositions are provided which contain a metal powder in admixture with a solid, particulate polyether lubricant. The incorporation of the polyether lubricant enhances the green strength properties of compacted parts made from the powder compositions, and generally reduces the ejection forces required to remove the compacted part from the die cavity.

    摘要翻译: 提供了含有与固体颗粒状聚醚润滑剂混合的金属粉末的冶金粉末组合物。 聚醚润滑剂的加入增强了由粉末组合物制成的压实部件的生坯强度性能,并且通常降低了从模腔中移除压实部件所需的喷射力。

    Metal powder compositions containing binding agents for elevated
temperature compaction
    7.
    发明授权
    Metal powder compositions containing binding agents for elevated temperature compaction 失效
    含有高温压实粘合剂的金属粉末组合物

    公开(公告)号:US5368630A

    公开(公告)日:1994-11-29

    申请号:US46234

    申请日:1993-04-13

    申请人: Sydney Luk

    发明人: Sydney Luk

    IPC分类号: B22F1/00 B22F3/02

    摘要: An improved metallurgical powder composition capable of being compacted at elevated temperatures is provided comprising an iron-based powder, an alloying powder, a high temperature compaction lubricant, and a binder. The selected binders of this invention permit the bonded powder composition to achieve increased compressibility in comparison to unbonded powder compositions while reducing dusting and segregation of the alloying powder.

    摘要翻译: 提供能够在高温下压实的改进的冶金粉末组合物,其包括铁基粉末,合金粉末,高温压实润滑剂和粘合剂。 与未结合的粉末组合物相比,本发明所选择的粘合剂允许粘合粉末组合物获得增加的压缩性,同时减少合金粉末的除尘和偏析。

    Powder metallurgy lubricant compositions and methods for using the same
    10.
    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。