Manufacturing soft magnetic components using a ferrous powder and a lubricant
    3.
    发明授权
    Manufacturing soft magnetic components using a ferrous powder and a lubricant 失效
    制造使用铁粉和润滑剂的软磁组件

    公开(公告)号:US06331270B1

    公开(公告)日:2001-12-18

    申请号:US09322178

    申请日:1999-05-28

    IPC分类号: B22F312

    摘要: Near-net-shape soft magnetic components can be produced from iron powder lubricant compositions using powder metallurgy techniques. The resulting components have isotropic magnetic and thermal properties and may be shaped into complex geometry using conventional compaction techniques. A non-coated ferromagnetic powder is mixed with a lubricant and compacted. After compaction, the components are thermally treated at a moderate temperature to burn out the lubricant, relieve the stresses induced during pressing and reduce the hysteresis losses. Depending on the application, the properties of the material may be tailored by varying the content and type of the lubricant and the thermal treatment conditions.

    摘要翻译: 可以使用粉末冶金技术由铁粉润滑剂组合物制造近网状软磁组件。 所得到的组分具有各向同性的磁性和热性质,并且可以使用常规的压实技术成型为复杂的几何形状。 将未涂覆的铁磁粉末与润滑剂混合并压实。 压实后,在中等温度下对组分进行热处理以烧尽润滑剂,减轻压制过程中产生的应力,减少滞后损失。 根据应用,可以通过改变润滑剂的含量和类型以及热处理条件来调整材料的性能。

    Ferrous powder compositions containing a polymeric binder-lubricant blend
    5.
    发明授权
    Ferrous powder compositions containing a polymeric binder-lubricant blend 失效
    含有聚合物粘合剂 - 润滑剂共混物的铁粉组合物

    公开(公告)号:US5980603A

    公开(公告)日:1999-11-09

    申请号:US80307

    申请日:1998-05-18

    摘要: Complexable polymeric binder-lubricant blends are disclosed for production by powder metallurgy techniques of ferrous compositions with remarkably high green strength upon compaction, or soft magnetic ferrous powder/resin composites with improved processability and magnetic properties. An exemplary composition consists of a ferrous powder, a thermoset phenolic resin and poly(ethylene oxide), both polymers exhibiting, when intimately mixed, strong intermolecular acid-base interactions giving rise to an interpolymer complex which imparts a high strength to the resulting ferrous powder compact.

    摘要翻译: 公开了可复合的聚合物粘合剂 - 润滑剂共混物,用于通过粉末冶金技术生产含铁组合物,其在压实时具有非常高的绿色强度,或者具有改善的加工性能和磁性能的软磁性亚铁粉末/树脂复合材料。 示例性组合物由铁粉末,热固性酚醛树脂和聚(环氧乙烷)组成,两种聚合物当充分混合时表现出强的分子间酸碱相互作用,产生互聚物络合物,其对所得的铁粉赋予高强度 紧凑。

    Lubricated aluminum powder agglomerates having improved flowability
    6.
    发明授权
    Lubricated aluminum powder agglomerates having improved flowability 失效
    具有改善的流动性的润滑铝粉末附聚物

    公开(公告)号:US5977033A

    公开(公告)日:1999-11-02

    申请号:US129642

    申请日:1998-08-05

    CPC分类号: B22F1/0096

    摘要: The present invention relates to particle agglomeration of aluminum powder using a lubricating binder. The resulting powder has improved flowability and can be shaped easily. The aluminum particles are admixed with a lubricant, e.g. polyethylene, and are held together by the lubricant. To agglomerate the aluminum powder, the lubricant is melted and is then solidified to form solid bridges between the aluminum powder particles. The lubricant may be burned out cleanly at temperatures lower than 450.degree. C.

    摘要翻译: 本发明涉及使用润滑粘合剂的铝粉末的颗粒聚集。 所得粉末具有改善的流动性并且可以容易地成形。 铝颗粒与润滑剂混合,例如 聚乙烯,并通过润滑剂保持在一起。 为了使铝粉末凝聚,将润滑剂熔化,然后固化,以在铝粉末颗粒之间形成固体桥。 润滑剂可能在低于450℃的温度下被清洁地燃烧。

    Method of making open cell material
    8.
    发明授权
    Method of making open cell material 有权
    制作开孔材料的方法

    公开(公告)号:US06660224B2

    公开(公告)日:2003-12-09

    申请号:US09938638

    申请日:2001-08-27

    IPC分类号: B22F310

    摘要: The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure comprising inorganic particles embedded in an organic binder is then heated to eliminate the organic binder and finally to sinter the remaining inorganic tri-dimensional network into a rigid structure having interconnected porosity.

    摘要翻译: 本发明的多孔材料通过加热主要含有有机固体粘合剂和无机颗粒的干粉混合物来制备。 当有机粘合剂熔化时,混合物发泡。 发泡来自粉末混合物中的发泡剂。 然后将包含嵌入有机粘合剂中的无机颗粒的固体发泡结构加热,以除去有机粘合剂,最后将剩余的无机三维网络烧结成具有互连多孔性的刚性结构。

    Binder-lubricants for ferrous powder metallurgy
    9.
    发明申请
    Binder-lubricants for ferrous powder metallurgy 审中-公开
    铁粉冶金粘结剂润滑剂

    公开(公告)号:US20060165549A1

    公开(公告)日:2006-07-27

    申请号:US11320717

    申请日:2005-12-30

    IPC分类号: B22F3/02

    摘要: A binder-lubricant for metallurgical powder compositions for powder metallurgy (P/M) applications having a melting point between 50 and 100° C. and comprising glyceryl esters of fatty acids. Addition of such binder-lubricant has improved resistance to dusting, and has improved green density for compacting temperature between 50 and 100° C.

    摘要翻译: 一种用于粉末冶金(P / M)应用的冶金粉末组合物的粘合剂 - 润滑剂,其熔点为50至100℃,并且包含脂肪酸的甘油酯。 添加这种粘合剂 - 润滑剂具有改善的耐除尘性能,并且在压实温度在50-100℃之间具有改善的生坯密度。

    Binder for powder metallurgical compositions
    10.
    发明申请
    Binder for powder metallurgical compositions 审中-公开
    粉末冶金组合物的粘合剂

    公开(公告)号:US20050254987A1

    公开(公告)日:2005-11-17

    申请号:US11129299

    申请日:2005-05-16

    IPC分类号: B22F1/00 B22F7/06

    摘要: A binder for metallurgical powder compositions for powder metallurgy (P/M) applications includes styrene/maleic anhydride copolymers and their derivatives. Addition of such binders has improved resistance to dusting, and has improved flow properties of the compositions, even in high relative humidity environments. The compositions can be compacted either at cold or warm temperatures. A mechanical strength of a sintered product containing the binder-treated mix is similar to that of sintered products without the binder.

    摘要翻译: 用于粉末冶金(P / M)应用的冶金粉末组合物的粘合剂包括苯乙烯/马来酸酐共聚物及其衍生物。 添加这样的粘合剂即使在高相对湿度的环境中也具有改善的防尘性,并且改善了组合物的流动性能。 组合物可以在冷或温度下压实。 含有粘合剂处理的混合物的烧结产品的机械强度类似于没有粘合剂的烧结产品的机械强度。