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1. 发明授权

US5833908A Method for compression molding a fixed centrifuge rotor having sample tube aperture inserts 失效
标题翻译：用于压缩成型具有样品管孔插入物的固定离心机转子的方法
公开(公告)号：US5833908A
公开(公告)日：1998-11-10
申请号：US561525
申请日：1995-11-21
申请人： Alireza Piramoon , Robert Wedemeyer , Guillaume Crete
发明人： Alireza Piramoon , Robert Wedemeyer , Guillaume Crete
IPC分类号： B04B7/08 , B29C33/00 , B29C33/44 , B29C33/76 , B29C43/02 , B29C70/34 , F16F15/30 , F16F15/305 , B27N5/02 , B29C43/18
CPC分类号： B04B7/085 , B29C33/0033 , B29C33/44 , B29C33/76 , B29C43/027 , B29C43/36 , B29C70/345 , B29L2031/7498 , Y10T464/50 , Y10T74/2109
摘要： In the compression molding of a fixed angle centrifuge rotor utilizing discontinuous fibers, sample tube apertures cores present in the net-shape mold are covered with pre-cured sample tube aperture inserts. The sample tube aperture inserts have a constant and unchanging inside diameter and are formed from composite fiber. This composite fiber extends from the closed bottom of the inserts, upwardly along the sides of the inserts to the open top of the inserts to provide tensile strength longitudinally of the sample tube aperture inserts. The sample tube aperture inserts have a regular and smooth inside for first accommodating the sample tube aperture cores when the rotor is compression molded and later the sample tubes themselves when the rotor is fully fabricated. These inserts have an irregular outside for forming an interference fit with the subsequently formed compression molded rotor body. Finally, the sample tube aperture inserts have a tapered thickness with the top and open portion of the inserts having a thick wall construction and the bottom and closed portion of the inserts having a thinner wall construction. In use, and when the compression mold is loaded, the sample tube aperture inserts are placed over the sample tube aperture cores. When the mold is fully loaded, and compression molding occurs, the inserts integrally form to the rotor body and the sample tube aperture cores are removed.
摘要翻译：在使用不连续纤维的固定角度离心机转子的压缩成型中，存在于网状模具中的样品管孔芯被预固化样品管孔插入物覆盖。样品管孔插入物具有恒定且不变的内径，并且由复合纤维形成。该复合纤维从插入件的封闭底部向上延伸，沿插入件的侧面向上延伸到插入件的开口顶部，以在样品管孔插入件的纵向提供拉伸强度。样品管孔插入件具有规则且平滑的内部，用于当转子被压缩模制时首先容纳样品管孔芯，并且随后在完全制造转子时样品管本身。这些插入件具有不规则的外部，用于与随后形成的压缩成型转子体形成过盈配合。最后，样品管孔插入物具有锥形厚度，其中插入件的顶部和开口部分具有厚壁结构，并且插入件的底部和封闭部分具有较薄的壁结构。在使用中，当加载压缩模具时，将样品管孔插入物放置在样品管孔芯上。当模具完全装载并且发生压缩成型时，插入件一体地形成到转子主体并且样品管孔芯被移除。

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