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    • 63. 发明授权
    • Apparatus for compacting powder
    • 压粉装置
    • US5039294A
    • 1991-08-13
    • US357721
    • 1989-05-26
    • Jean GautierJean-Pierre Crepet
    • Jean GautierJean-Pierre Crepet
    • B30B11/08B29B9/08B29C43/32B30B11/00B30B11/02
    • B30B11/027B30B11/005B30B15/0017
    • An adjustable powder compacting device for compacting a powder such as a cosmetic powder includes a control unit which electrically monitors and controls a hydraulic ram operated punch to compress the powder into a cup. The control unit causes the punch to perform: an approach stroke with a first regulated preset punch speed until the punch contacts the powder and exerts a first pressure on it, a debubbling stroke with a regulated second preset punch speed until the pressure exerted by the punch reaches a second preset pressure, and a compacting stroke at a constant third preset pressure for a preset period of time. These preset speeds and pressures are easily adjusted so that proper evacuation of gases from the powder and optimal compacting is readily achievable when the consistency of the powder changes. In specific embodiments, the device includes a rotatable disc for causing successive volumes of non-compressed powder to be compressed by the punch. In other embodiments, the device includes a plotting board for displaying the operation of the device such as the speed and pressure of the punch.
    • 用于压实诸如化妆粉的粉末的可调节粉末压实装置包括控制单元,其电气地监测和控制液压冲压机操作的冲头以将粉末压缩成杯。 控制单元使冲头执行:具有第一调节预设冲压速度的进入冲程,直到冲头接触粉末并对其施加第一压力,具有调节的第二预设冲压速度的脱泡冲程直到冲头施加的压力 达到第二预设压力,并且在预定时间段内以恒定的第三预设压力进行压实冲程。 这些预设速度和压力容易调整,以便当粉末的稠度发生变化时,容易实现气体从粉末的适当抽真空和最佳的压实。 在具体实施例中,该装置包括用于使连续体积的未压缩粉末被冲头压缩的可旋转盘。 在其他实施例中,该装置包括用于显示装置的操作的绘图板,例如冲头的速度和压力。
    • 68. 发明授权
    • Method for molding using a dual solid flowable polymer system
    • 使用双固体可流动聚合物体系的成型方法
    • US4770835A
    • 1988-09-13
    • US907947
    • 1986-09-10
    • Robert V. Kromrey
    • Robert V. Kromrey
    • B22D19/14B22D19/00B28B3/00B29C43/10B29C43/12B29C43/32B29C70/44B29K105/06B30B11/00
    • B30B11/001B29C43/10B29C70/44B29C43/12
    • A method of molding an article utilizing two types of solid flowable particulate polymer pressurizing media wherein one medium is protected from thermal degradation by a second medium. The method comprises disposing an article precursor within a pressure vessel and disposing a first solid flowable polymer medium that is substantially thermally stable at temperatures in excess of about 316.degree. C. so that it is capable of transferring a substantially uniform, predetermined medium pressure to the surface of the article precursor. A second solid flowable polymer medium is disposed so that it is capable of transferring a substantially uniform, predetermined medium pressure to the first polymer medium. The second medium is caused to produce a substantially uniform medium pressure so that said pressure is transferred to the surface of the article precursor and the article precursor is exposed to temperatures in excess of about 316.degree. C. The second polymer is protected from thermal degradation by the thermal stability and high insulative capability of the first polymer medium.
    • 使用两种类型的可固态流动的颗粒聚合物加压介质来模制制品的方法,其中一种介质被第二种介质保护免受热降解。 该方法包括将制品前体设置在压力容器内并且设置在超过约316℃的温度下基本上热稳定的第一固体可流动的聚合物介质,使得其能够将基本上均匀的预定介质压力传递到 制品前体的表面。 设置第二固体可流动的聚合物介质,使得其能够将基本上均匀的预定介质压力转移到第一聚合物介质。 使第二介质产生基本均匀的介质压力,使得所述压力被转移到制品前体的表面,并且制品前体暴露于超过约316℃的温度。第二聚合物被保护免受热降解 第一种聚合物介质的热稳定性和高绝缘能力。
    • 69. 发明授权
    • Method of molding using a solid flowable polymer medium with metal
additives
    • 使用具有金属添加剂的固体可流动聚合物介质的成型方法
    • US4755343A
    • 1988-07-05
    • US907943
    • 1986-09-10
    • Robert V. Kromrey
    • Robert V. Kromrey
    • B22D19/00B22D19/14B28B3/00B29C43/00B29C43/10B29C43/32B29K105/06B30B11/00C08K3/08
    • B30B11/001B29C43/10C08K3/08B29C43/006B29C43/52B29K2303/06Y10S264/50
    • A flowable particulate polymer-metal mixture that is thermally conductive and is particularly adapted for use as a pressurizing medium in a high pressure elevated temperature molding process. The material comprises a substantially uniform mixture of about 20% to about 90% solid flowable, particulate silicone rubber having a nominal flow rate of at least 0.6 gram/second through a 1.1 cm diameter pipe 7.6 cm long under applied pressure of 10.34 MPa at room temperature. The material also comprises about 10% to about 80% thermally conductive particulate metal that has a melting point less than the molding temperature and is substantially chemically compatible with said silicone rubber. The pressurizing medium is used to mold article precursors into articles by placing an article precursor within a pressure vessel and substantially filling the vessel with a pressurizing mixture. The mixture is exposd to a temperature equal to or greater than the metal melting point and is caused to produce a substantially uniform predetermined medium pressure on the surface of the article precursor to mold the article. The molten metal transfers heat to the article precursor yet since it is molten the polymer-metal mixture is flowable.
    • 一种可流动的颗粒聚合物 - 金属混合物,其是导热性的并且特别适用于在高压高温成型工艺中用作加压介质。 该材料包括大约20%至大约90%的固体可流动的颗粒状硅橡胶,其额定流速为至少0.6克/秒,通过1.1cm直径的管道7.6cm长,施加压力为10.34MPa,室内 温度。 该材料还包含约10%至约80%的导热颗粒金属,其熔点小于模塑温度,并且与所述硅橡胶基本上化学相容。 加压介质用于通过将制品前体放置在压力容器内并用加压混合物基本上填充容器将制品前体模制成制品。 将混合物暴露于等于或大于金属熔点的温度,并使其在制品前体的表面上产生基本均匀的预定介质压力以模制该制品。 熔融金属将热量转移到制品前体,但由于熔融金属混合物是可流动的。