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36 条记录 (耗时 0.013 秒)

    Method and apparatus for producing a powder compact
    1.
    发明公开
    Method and apparatus for producing a powder compact 失效
    Verfahren und Vorrichtung zur Herstellung von einePresskörperaus Pulver。

    公开(公告)号：EP0599222A1

    公开(公告)日：1994-06-01

    申请号：EP93118664.7

    申请日：1993-11-19

    申请人： INTERMETALLICS CO., LTD.

    发明人： Sagawa, Masato, c/o Intermetallics Co., Ltd. ,  Nagata, Hiroshi, c/o Intermetallics Co., Ltd. ,  Itatani, Osamu, c/o Intermetallics Co., Ltd.

    IPC分类号： B30B15/02 ,  B30B11/02

    CPC分类号： B30B11/02 ,  B22F3/1233 ,  B30B11/008 ,  B30B15/024 ,  H01F41/0266

    摘要： The present invention relates to a method and an apparatus for producing a powder compact in which a recess (3) formed by die (d) and a lower punch (p1) inserted into said die is loaded with rubber mold (m) provided with a cavity (m') shaped according to the desired configuration of the compact, and subsequently, a powder is packed in the cavity of the rubber mold, and an upper punch (p2) is placed on die (d) to press the rubber mold with powder in the space formed by the die, the lower punch and the upper punch, thereby producing a powder compact. Because of the construction in which the upper punch is not inserted into the die but contacted at its bottom with the top of the die thereby carrying out the die pressing, the positioning of the indexed table does not have to be so accurate as in the prior art. The time for positioning is therefore shortened and the productivity is enhanced.

    摘要翻译： 本发明涉及一种制造粉末压块的方法和装置，其中由模具（d）形成的凹部（3）和插入所述模具中的下冲头（p1）装载有橡胶模具（m） （m'），然后将粉末填充在橡胶模具的空腔中，并将上冲头（p2）放置在模具（d）上以将橡胶模具按压 在由模具，下冲头和上冲头形成的空间中的粉末，从而产生粉末压块。 由于上冲头未插入模具的结构，而是在其底部与模具的顶部接触，从而进行压模，因此分度台的定位不一定如前所述那样准确 艺术。 因此缩短定位时间，提高生产效率。

    Method for molding powders
    4.
    发明公开
    Method for molding powders 失效
    用于成型粉末的方法

    公开(公告)号：EP0249936A3

    公开(公告)日：1989-11-15

    申请号：EP87108630.2

    申请日：1987-06-16

    申请人： NIPPON KOKAN KABUSHIKI KAISHA

    发明人： Nishio, Hiroaki Pat&Lic, Quality Standards Dept. ,  Harada, Jun Pat&Lic, Quality Standards Dept.

    IPC分类号： B22F3/04

    CPC分类号： B22F3/1233 ,  B22F3/04 ,  B30B11/001 ,  Y10S264/78 ,  Y10S425/014

    摘要： A method for molding powders which comprises the steps of introducing a thin-wall resilient mold (9) inside a ventilative mold support (6), reducing outside pressure of the ventilative mold support to less than the atmospheric pressure (760 Torr), putting the thin-­wall resilient mold exactly close to the inside wall of the ventilative mold support, supplying material powders (13) into the thin-wall resilient mold, exhausting air existing in the voids which the material powders form, and taking the ventilative mold support apart to apply cold isostatic press treatment to the thin-wall resilient mold. The shape of the thin-wall resilient mold is similar to the shape of the ventilative mold support.

    COMPOSITE CERMET ARTICLES AND METHOD OF MAKING
    6.
    发明公开
    COMPOSITE CERMET ARTICLES AND METHOD OF MAKING 无效
    复合金属陶瓷制品和工艺及其

    公开(公告)号：EP0871556A1

    公开(公告)日：1998-10-21

    申请号：EP95937694.0

    申请日：1995-10-30

    申请人： KENNAMETAL INC.

    发明人： MASSA, Ted R. ,  VAN KIRK, John S. ,  MCNAUGHTON, Robert R., Jr.

    IPC分类号： B22F3 ,  B22F7 ,  E21B10

    CPC分类号： B30B15/024 ,  B22F3/04 ,  B22F3/1233 ,  B22F3/1258 ,  B22F3/1291 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B30B11/001 ,  E21B10/56 ,  Y10S425/044 ,  B22F5/007 ,  B22F2207/03 ,  B22F3/101 ,  B22F3/15 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2201/11

    摘要： Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit a portion that is binder rich and which gradually or smoothly transitions to at least a second region. The multiple-region cermets are particularly useful in compressively loaded application wherein a tensile stress or fatigue limit might otherwise be excessive for monolithic articles. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size, differential carbide chemistry, differential binder content, differential binder chemistry, or any combination of the preceding). Preferably, a first region of the cermet comprises a first ceramic component and a prescribed binder content and a second region, juxtaposing or adjoining the first region, of the cermet comprises a second ceramic component and a second binder content less than the prescribed binder content. The multiple region cermets of the present invention may be used in materials processing technology including, for example, compression technology, extrusion, supercritical processing, chemical processing, materials processing, and ultrahigh pressure.

    Method for molding powders
    8.
    发明公开
    Method for molding powders 失效
    Verfahren zum Formen von Pulver。

    公开(公告)号：EP0403743A2

    公开(公告)日：1990-12-27

    申请号：EP90106399.0

    申请日：1990-04-04

    申请人： NKK CORPORATION

    发明人： Nishio, Hiroaki, c/o Patent & License Dep., NKK Co ,  Kato, Akira, c/o Patent & License Dep., NKK Co ,  Nakamura, Sazo, c/o Patent & License Dep., NKK Co

    IPC分类号： B22F3/04 ,  B29C41/18

    CPC分类号： C04B35/622 ,  B22F3/04 ,  B22F3/1233 ,  B29C41/18 ,  Y10S264/78 ,  Y10S425/014

    摘要： A method for molding powders comprises the steps of forming a mold support (1) having at least an opening and a cavity (3), forming a film of latex on inner surfaces of the mold support by pouring the latex from the opening into the cavity of the mold support and discharging a substantial portion of the latex poured into the cavity, forming a thin-wall resi lent mold (4) inside the mold support by drying the film of latex formed, charging powders as materials for a compact from the opening into the thin-wall resilient mold, exhausting air out of the thin-wall resilient mold filled up with the powders through the opening and sealing the opening of the thin-wall resilient mold, separating the thin-wall resilient mold filled up with the powders from the mold support, and subjecting the thin-wall resilient mold to a C.I.P. treatment.

    摘要翻译： 一种用于模制粉末的方法包括以下步骤：形成至少具有开口和空腔（3）的模具支撑件（1），通过将胶乳从开口注入到模腔中而在模具支撑件的内表面上形成胶乳膜 的模具支撑和排出大量部分乳胶注入到空腔中，通过干燥所形成的胶乳膜形成薄壁的模具（4），从而将粉末作为压块的材料从开口 进入薄壁弹性模具，通过开口将空气排出填充有粉末的薄壁弹性模具，并密封薄壁弹性模具的开口，分离填充有粉末的薄壁弹性模具 从模具支撑件，并使薄壁弹性模具经受CIP 治疗。

    Method for molding powders
    9.
    发明公开
    Method for molding powders 失效
    Verfahren zum Formen von Pulver。

    公开(公告)号：EP0249936A2

    公开(公告)日：1987-12-23

    申请号：EP87108630.2

    申请日：1987-06-16

    申请人： NIPPON KOKAN KABUSHIKI KAISHA

    发明人： Nishio, Hiroaki Pat&Lic, Quality Standards Dept. ,  Harada, Jun Pat&Lic, Quality Standards Dept.

    IPC分类号： B22F3/04

    CPC分类号： B22F3/1233 ,  B22F3/04 ,  B30B11/001 ,  Y10S264/78 ,  Y10S425/014

    摘要： A method for molding powders which comprises the steps of introducing a thin-wall resilient mold (9) inside a ventilative mold support (6), reducing outside pressure of the ventilative mold support to less than the atmospheric pressure (760 Torr), putting the thin-­wall resilient mold exactly close to the inside wall of the ventilative mold support, supplying material powders (13) into the thin-wall resilient mold, exhausting air existing in the voids which the material powders form, and taking the ventilative mold support apart to apply cold isostatic press treatment to the thin-wall resilient mold. The shape of the thin-wall resilient mold is similar to the shape of the ventilative mold support.

    摘要翻译： 一种粉末成型方法，包括以下步骤：将薄壁弹性模具（9）引入通气模具支架（6）内，将通气模具支架的外部压力降低至小于大气压（760托），将 薄壁弹性模具精确地靠近通风模具支架的内壁，将材料粉末（13）供应到薄壁弹性模具中，排出存在于材料粉末形成的空隙中的空气，并将通风模具支撑件分开 将冷等静压处理应用于薄壁弹性模具。 薄壁弹性模具的形状类似于通风模具支架的形状。