利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.016 秒)

    CONTROLLED PRESSURE CASTING
    5.
    发明公开
    CONTROLLED PRESSURE CASTING 有权
    铸铁，特殊控制的压力

    公开(公告)号：EP1881876A4

    公开(公告)日：2009-05-06

    申请号：EP06741532

    申请日：2006-05-19

    申请人： MAGNA INT INC

    发明人： KOTAGIRI SEETARAMA S ,  SKSZEK TIMOTHY W ,  HORTON FRANK A ,  KISELIS GREGORY P

    IPC分类号： B22D17/20 ,  B22D17/30 ,  B22D17/32 ,  B22D21/04

    CPC分类号： B62D21/11 ,  B22D17/005 ,  B22D17/007 ,  B22D17/2069 ,  B22D17/24 ,  B22D17/32 ,  B22D19/04 ,  B22D19/16 ,  B22D27/11 ,  B62D29/008

    摘要： A method of forming metal castings, including positioning a first end of a structural member in a first mold cavity and a second end of the structural member in a second mold cavity. The first and second mold cavities being fluidly coupled to a reservoir of molten metal. Applying a main pressure to the molten metal in the reservoir to force the molten metal into the first mold cavity and the second mold cavity. Then, applying a first auxiliary pressure to the first mold cavity and a second auxiliary pressure to the second mold cavity to density the casting formed in the first mold cavity and the second mold cavity. Also, a method for casting including maintaining a main pressure at or less than an initial, mold-filling pressure after first and second mold cavities have been filled. Additionally, a method for detecting whether a first mold cavity is sufficiently filled with molten metal by monitoring a moveable element.

    Method and apparatus for pulsed pressure molding
    6.
    发明公开
    Method and apparatus for pulsed pressure molding 有权
    方法和装置用于脉冲压缩成型

    公开(公告)号：EP1810765A3

    公开(公告)日：2008-05-21

    申请号：EP07001379.2

    申请日：2007-01-23

    申请人： LMC Technology LLC

    发明人： Stoyanov, Peio Todorov ,  Stoyanov, Pantcho Peev

    IPC分类号： B22D17/00

    CPC分类号： B22D18/04 ,  B22D18/06 ,  B22D27/11

    摘要： Method and apparatus for creating a molded product by first liquefying a metal in a crucible disposed in a crucible chamber and then applying a differential pressure level to the liquefied metal so as to force the liquefied metal into a mold. Once the liquefied metal is drawn into the mold, the pressure of the liquefied metal in the mold is raised to a solidification pressure in oscillating pressure steps. Once the pressure is raised to the solidification pressure, the liquefied metal is allowed to solidify.

    GIESSANLAGE UND VERFAHREN ZUR HERSTELLUNG VON GUSSSTÜCKEN
    8.
    发明授权
    GIESSANLAGE UND VERFAHREN ZUR HERSTELLUNG VON GUSSSTÜCKEN 失效
    脚轮及其制造方法铸件

    公开(公告)号：EP0895490B1

    公开(公告)日：2002-05-02

    申请号：EP97918055.1

    申请日：1997-04-01

    申请人： Ohnsmann, Gustav

    发明人： OHNSMANN, Gustav ,  BANDT, Gerold ,  OHNSMANN, Martin

    IPC分类号： B22D18/04 ,  B22D27/11

    CPC分类号： B22D18/04 ,  B22D27/11

    摘要： The invention concerns a casting plant and a method of producing castings. The casting plant consists of operatively and kinematically connected units in the form of linear or rotating conveying devices (1) with casting moulds (3) which are disposed therein and to the underside of which is flanged a feeder pressure pot (6) with a re-compression unit (17) and a shut-off valve unit (32). A casting or residual metal take-up station (59) is disposed below the casting moulds and comprises a pressurized furnace (60), a movable pressure line (77) and a movable return line (95) with its actuating device (88) on the furnace cover (70), the pressure chamber of the pressurized furnace being filled with molten mass (73). By interlocking the pressure line (77) with the shut-off valve unit (32) the molten mass (73) is urged under gas pressure into the casting mould (3) via the pressure line (77), shut-off valve (32) and feeder pressure pot (6). When the feeder pressure pot has been closed, the pressure of the molten mass can be increased as required via the pressure piston (20). At the same time, the column of metal is lowered via the pressure line (77) which is returned to its initial position. The casting mould (3) leaves the casting and residual metal take-up station (59), the casting (2) hardening in a cooling section. Before the casting is removed, the residual molten mass in the feeder pressure pot (6) is diverted into the pressurized furnace (60) as a result of the return line (95) being interlocked with the shut-off valve unit (32). When the return line (95) has been lowered and the casting removed, the casting mould is refilled.

    Pressure casting of battery terminals
    9.
    发明公开
    Pressure casting of battery terminals 有权
    Druckgiessen von Batterieklemmen

    公开(公告)号：EP0993891A1

    公开(公告)日：2000-04-19

    申请号：EP99119905.0

    申请日：1999-10-08

    申请人： WATER GREMLIN COMPANY

    发明人： Ratte, Robert W.

    IPC分类号： B22D25/04 ,  B22D27/11 ,  B22D31/00 ,  B22D27/15 ,  B22D17/14

    CPC分类号： B22D27/11 ,  B22D17/14 ,  B22D25/04 ,  B22D27/15

    摘要： A closed system (10) and method that includes a source of pressurizeable molten lead connected to a mold (11) having a mold cavity (20) therein with the mold maintainable at sufficiently low temperature so that a charge of molten lead located in the mold cavity solidifies to thereby form a solidified casting in the mold cavity. A housing (215) having a runner (214), is maintainable at sufficiently high temperature to maintain the molten lead in a molten state so that the mold cavity can be refilled with a fresh charge molten lead when a solidified casting is removed therefrom without introducing air to the closed system. A shut-off valve (239), having an open position to allow a charge of molten lead to flow into the mold cavity and a closed position to prevent molten lead from flowing out of the runner as the molten lead in mold cavity solidifies with the shut-off valve configurable to intensify the pressure of the lead in the mold cavity. The intensification mode being monitorable so that when the state of molten enters a liquid-to-solid transformation stage, the volume of the mold available for the lead to solidify therein is quickly reduced through a volume contraction step to thereby cause the molten lead to flow into the remaining volume at the same time one maintains pressure on the molten lead. As the molten lead solidifies under the reduced volume and high pressure it produces a battery part that is substantially free of both tears and cracks. In an alternate intensification method, the lead is allowed to solidify and at least a portion of the lead is mechanically deformed through a volume contraction step to cause cracks or tears in the battery part to be eliminated thereby providing a battery part free of cracks or tears. In another method of forming a pressure cast battery part free of cracks a molten lead under pressure is flowed into a battery part cavity and the pressure of the molten lead is increased to sufficiently high pressure so that when the molten lead solidifies it forms a battery part free of cracks and voids.

    摘要翻译： 一种封闭系统（10）和方法，其包括连接到具有模腔（20）的模具（11）的可加压熔融铅源，其中模具保持在足够低的温度，使得位于模具中的熔融铅的电荷 空腔固化，从而在模腔中形成固化的铸件。 具有流道（214）的壳体（215）可维持在足够高的温度以将熔融铅保持在熔融状态，使得当从其中移除固化的铸件时，可以用新鲜的电荷熔融铅重新填充模腔，而不引入 空气进入封闭系统。 截止阀（239），其具有打开位置以允许熔融铅流入模腔，并且闭合位置以防止熔融铅从模具腔中的熔融铅固化而流出流道 截止阀可配置为增强模腔中铅的压力。 增强模式是可监控的，使得当熔融状态进入液 - 固转化阶段时，通过体积收缩步骤快速地减少可用于使其固化的模具的体积，从而使熔融的铅流动 进入剩余容积的同时，保持对熔融铅的压力。 当熔融铅在体积减小和高压下固化时，其产生基本上不含泪液和裂纹的电池部件。 在另一种强化方法中，允许引线固化，并且引线的至少一部分通过体积收缩步骤机械变形，从而消除电池部件中的裂纹或撕裂，从而提供没有裂缝或撕裂的电池部件 。 在形成无裂纹的压铸电池部件的另一种方法中，压力下的熔融铅流入电池部件空腔，并且熔融引线的压力增加到足够高的压力，使得当熔融引线固化时，其形成电池部件 没有裂缝和空隙。