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    • 1. 发明授权
    • Method for vaccum assisted preforming of superplastically or quick plastically formed article
    • 真空辅助预成型超塑性或快速塑性成型制品的方法
    • US07363790B2
    • 2008-04-29
    • US11215393
    • 2005-08-30
    • Gary A. KrugerChongmin KimRichard H. Hammar
    • Gary A. KrugerChongmin KimRichard H. Hammar
    • B21D26/02
    • B21D26/055B21D22/02B21D26/031Y10S72/709Y10T29/49805
    • Method of preforming and forming a sheet metal article from a preheated blank of sheet metal uses opposing dies including a punch having a punch surface defining a final configuration for the article and a cavity die having a cavity surface defining a preform configuration. The blank is placed between the dies and has a first side surface facing the cavity die and a second side surface facing the punch. A vacuum is applied to the first side of the blank to draw and shape the blank into the cavity die to a preform configuration conforming to the cavity surface. The punch and the cavity die are then closed toward one another and gas pressure is then applied to the first side surface of the blank to press the second side surface against the punch surface to the finish configuration.
    • 从金属板预热坯料预成型和成型金属制品的方法使用相对的模具,其包括具有限定制品的最终构型的冲头表面的冲头和具有限定预型件构型的空腔表面的模腔。 坯料被放置在模具之间并且具有面向空腔模具的第一侧表面和面向冲头的第二侧表面。 在坯料的第一面上施加真空以将坯料拉伸成形为模腔,使其成型为符合空腔表面的预成型件。 然后将冲头和空腔模具朝向彼此封闭,然后将气体压力施加到坯件的第一侧表面,以将第二侧表面抵靠冲头表面挤压至精加工构型。
    • 4. 发明授权
    • Open press thermal gap for QPF forming tools
    • 用于QPF成型工具的打开压力热间隙
    • US07823430B2
    • 2010-11-02
    • US12181538
    • 2008-07-29
    • Richard H. HammarRichard M. KleberGary A. Kruger
    • Richard H. HammarRichard M. KleberGary A. Kruger
    • B21D37/16B21D26/02
    • B21D37/16B21D26/025B21D26/031B21D26/055B21D37/10Y10T29/49805
    • A quick plastic forming (QPF) tool is provided in which a thermal gap is created that reduces or eliminates some of the conductive heat loss paths when the QPF tool is in an open position during part removal or sheet loading. By reducing conductive heat loss, a more precise temperature control for the QPF tool from manufacturing cycle to manufacturing cycle may be realized. The QPF tool may also have a thermal gap when the tool is placed in a semi-open position during idle times. The QPF tool may also include components for creating the thermal gap when the QPF tool is moved to the open position and control the lateral movement of the part forming section of the QPF tool as the part is moved between the open position and the closed position.
    • 提供了快速塑料成型(QPF)工具,其中产生热间隙,当在零件移除或片材加载期间,当QPF工具处于打开位置时,可以减少或消除一些传导性热损失路径。 通过降低传导热损失,可以实现从制造周期到制造周期的QPF工具的更精确的温度控制。 当工具在空闲时间内处于半开位置时,QPF工具也可能具有热间隙。 当QPF工具移动到打开位置时,QPF工具还可以包括用于产生热间隙的部件,并且当部件在打开位置和关闭位置之间移动时,控制QPF工具的部件形成部分的横向移动。
    • 9. 发明授权
    • Battery cell and electrolyte circulation pump
    • 电池和电解液循环泵
    • US4308322A
    • 1981-12-29
    • US210517
    • 1980-11-28
    • Richard H. Hammar
    • Richard H. Hammar
    • H01M2/38H01M2/12
    • H01M2/385H01M2/38
    • A pump is disclosed which utilizes battery gas for circulating a body of liquid electrolyte in an electrochemical cell. The pump comprises an electrolyte conduit immersed in the electrolyte body and having an electrolyte inlet adjacent the bottom of the electrolyte body, an electrolyte outlet closely below the surface of the body, and a gas inlet below the outlet. The pump also comprises a hood for collecting battery gas rising in the electrolyte body and a passage for conveying collected gas from the hood to the conduit gas inlet. Gas bubbles released into the conduit at the gas inlet rise and carry electrolyte to the outlet, thereby circulating the electrolyte.
    • 公开了一种利用电池气体在电化学电池中循环液体电解质体的泵。 该泵包括浸入电解质体中并具有邻近电解质体底部的电解质入口的电解质导管,紧靠主体表面的电解液出口和出口下方的气体入口。 泵还包括用于收集在电解质体中上升的电池气体的罩,以及用于将收集的气体从罩传送到导管气体入口的通道。 在气体入口处释放到导管中的气泡升高并将电解质携带到出口,从而使电解质循环。