Iron-based powder mixtures containing binder-lubricant
    1.
    发明授权
    Iron-based powder mixtures containing binder-lubricant 失效
    含有粘合剂润滑剂的铁基粉末混合物

    公开(公告)号:US5298055A

    公开(公告)日:1994-03-29

    申请号:US848264

    申请日:1992-03-09

    IPC分类号: B22F1/00 B22F3/02

    CPC分类号: B22F1/0059

    摘要: An improved metallurgical powder composition comprising an iron-based powder and an alloying powder is provided. The composition contains a polyalkylene oxide having a number average molecular weight of at least about 7,000 as a binder. The binder of this invention permits the bonded powder composition to achieve compressibility equivalent to that of unbonded compositions and maintains resistance to dusting and segregation of the alloying powder.

    摘要翻译: 提供了包含铁基粉末和合金粉末的改进的冶金粉末组合物。 组合物含有作为粘合剂的数均分子量为至少约7000的聚环氧烷。 本发明的粘合剂允许粘合粉末组合物达到与未粘合组合物相当的压缩性,并且保持耐粉化和合金粉末偏析的能力。

    Method for preparing binder-treated metallurgical powders containing an
organic lubricant
    2.
    发明授权
    Method for preparing binder-treated metallurgical powders containing an organic lubricant 失效
    制备含有机润滑剂的粘合剂处理冶金粉末的方法

    公开(公告)号:US5256185A

    公开(公告)日:1993-10-26

    申请号:US915116

    申请日:1992-07-17

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

    摘要: Methods for preparing metallurgical powders containing an organic lubricant are provided. The powders are prepared by wetting a dry admixture of an iron-based powder, at least one alloying powder, and a first organic lubricant with an organic binding agent that is preferably dissolved or dispersed in a solvent. After removal of the solvent, the dried powder composition is admixed with a second organic lubricant.

    摘要翻译: 提供了制备含有机润滑剂的冶金粉末的方法。 通过将优选溶解或分散在溶剂中的有机粘合剂润湿铁基粉末,至少一种合金粉末和第一有机润滑剂的干混合物来制备粉末。 除去溶剂后,将干燥的粉末组合物与第二有机润滑剂混合。

    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: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
    4.
    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
    5.
    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
    7.
    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
    8.
    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。