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    • 2. 发明授权
    • Extrusion die
    • 挤出模具
    • US5888555A
    • 1999-03-30
    • US844796
    • 1997-04-22
    • Hobab El-Sobky
    • Hobab El-Sobky
    • B29C47/00B29C47/24B29C47/38B29C47/36
    • B29C47/0004B29C47/0023B29C47/24B29C47/38B29C47/6043B29C47/666B29K2105/06
    • An extrusion die for the extrusion of continuous hollow sections of plastic materials reinforced with fibers or molecules. Both the outer nozzle and inner mandrel are rotatable and have radial channels within them to allow the extrudate to flow through either the body of the nozzle or through the body of the mandrel in a direction perpendicular to the axis of the extrusion die into the space between them to impart a radial component to the fibers. Likewise, a helical channel formed either inside the nozzle or the mandrel or on a surface of either imparts a tangential component to the fibers. When formed inside the nozzle or mandrel, the helical channel forms a hollow enclosed passageway open at opposite ends through which the extrudate flows. The flow may also be straight through the die which gives the fibers an axial component.
    • 用于挤出由纤维或分子增强的塑料材料的连续中空部分的挤出模头。 外部喷嘴和内部心轴都是可旋转的并且在其内部具有径向通道,以允许挤出物在垂直于挤出模头的轴线的方向上流过喷嘴的主体或通过心轴的主体, 它们赋予纤维径向分量。 类似地,形成在喷嘴或心轴内部或表面上的螺旋形通道或者向纤维施加切向分量。 当形成在喷嘴或心轴内时,螺旋形通道形成在挤出物流过的相对端处开口的中空封闭通道。 该流动还可以直接通过模具,其给予纤维轴向分量。