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公开(公告)号：US06500370B1
公开(公告)日：2002-12-31
申请号：US09620274
申请日：2000-07-18
IPC分类号： B29C6700
CPC分类号： B29C70/16 , B29B15/122 , B29C70/50 , Y10T156/109
摘要： The invention is an apparatus and method for producing a hybrid boron reinforced polymer matrix composition from powder pre-impregnated fiber tow bundles and a linear array of boron fibers. The boron fibers are applied onto the powder pre-impregnated fiber tow bundles and then are processed within a processing component having an impregnation bar assembly. After passing through variable-dimension forming nip-rollers, the powder pre-impregnated fiber tow bundles with the boron fibers become a hybrid boron reinforced polymer matrix composite tape. A driving mechanism pulls the powder pre-impregnated fiber tow bundles with boron fibers through the processing line of the apparatus and a take-up spool collects the formed hybrid boron-fiber reinforced polymer matrix composite tape.
摘要翻译： 本发明是一种从粉末预浸纤维丝束和硼纤维直线阵列制备杂化硼增强聚合物基质组合物的装置和方法。 将硼纤维施加到粉末预浸渍的纤维束上，然后在具有浸渍棒组件的加工部件内加工。 经过可变尺寸的成型夹辊之后，与硼纤维的预浸纤维丝束成为混合硼增强聚合物基质复合带。 驱动机构通过设备的处理线将具有硼纤维的粉末预浸纤维束束拉出，卷取卷轴收集形成的混合硼纤维增强聚合物基质复合带。
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公开(公告)号：US5587041A
公开(公告)日：1996-12-24
申请号：US457608
申请日：1995-06-01
CPC分类号： B29C70/32 , B29C53/8016 , B29C70/384 , B29C35/02 , B29C35/16 , B29K2101/12 , Y10T156/1788
摘要： A heated shoe and cooled pressure roller assembly for composite prepreg application is provided. The shoe assembly includes a heated forward contact surface having a curved pressure surface. The following cooled roller provides a continuous pressure to the thermoplastic while reducing the temperature to approximately 5.degree. C. below glass transition temperature. Electric heating coils inside the forward portion of the shoe heat a thermoplastic workpiece to approximately 100.degree. C. above the glass transition. Immediately following the heated contact surface, a cooled roller cools the work. The end sharpened shape of the heated shoe trailing edge tends to prevent slag buildup and maintain a uniform, relaxed stress fabrication.
摘要翻译： 提供了一种用于复合预浸料应用的加热鞋和冷却压力辊组件。 鞋组件包括具有弯曲压力表面的加热的前向接触表面。 以下冷却辊在热塑性塑料上提供连续的压力，同时将温度降低到玻璃化转变温度以下约5℃。 在鞋的前部内部的电加热线圈将热塑性工件加热至玻璃化转变点上方约100℃。 在加热的接触表面之后，冷却的辊子冷却工件。 加热的鞋后缘的端部锐化形状倾向于防止积渣并保持均匀的，松弛的应力制造。
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3.发明授权Dry powder process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs 失效用于从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的干粉工艺
公开(公告)号：US5618367A
公开(公告)日：1997-04-08
申请号：US425005
申请日：1995-04-10
CPC分类号： B32B37/1045 , B29B15/12 , B29C70/504 , B32B37/04 , B32B5/28 , B32B2305/10 , B32B2311/18
摘要： A process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs is provided. A plurality of polymer powder coated filamentary towpregs are provided. The towpregs are collimated so that each towpreg is parallel. A material is applied to each side of the towpreg to form a sandwich. The sandwich is heated to a temperature wherein the polymer flows and intimately contacts the filaments and pressure is repeatedly applied perpendicularly to the sandwich with a longitudinal oscillating action wherein the filaments move apart and the polymer wets the filaments forming a uni-tape prepreg. The uni-tape prepreg is subsequently cooled.
摘要翻译： 提供了一种从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的方法。 提供了多种聚合物粉末涂覆的丝状丝束。 拖把被准直，使得每个拖把平行。 将一种材料施加到拖把的每一侧以形成三明治。 将夹心物加热到聚合物流动并与丝束紧密接触的温度，并且以纵向振荡作用垂直于三明治反复施加压力，其中细丝移开并且聚合物润湿形成单带预浸料的长丝。 随后将单片预浸料坯冷却。
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公开(公告)号：US5405683A
公开(公告)日：1995-04-11
申请号：US141293
申请日：1993-10-20
CPC分类号： B29C70/34 , B29C70/20 , Y10T428/24033 , Y10T428/24058
摘要： A shaped towpreg ribbon having a cross-sectional geometry which promotes intimate lateral contact between adjacent composite tows was prepared. The cross-sectional geometry is non-rectangular and promotes intimate lateral contact between adjacent towpreg ribbons during normal processing.
摘要翻译： 制备具有促进相邻复合丝束之间的亲密侧向接触的横截面几何形状的成形的丝束带。 横截面几何形状是非矩形的，并且在正常处理期间促进相邻的丝束带之间的紧密的侧向接触。
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公开(公告)号：US5694807A
公开(公告)日：1997-12-09
申请号：US316708
申请日：1994-09-29
摘要： A method and apparatus for determining the mass density of a moving filament is provided. The method includes the steps of providing a filament across two supports, tensioning the filament, inducing a vibration into the filament segment between the supports, reinforcing the vibration using an amplified feedback signal, detecting the vibrational frequency data, processing the data using a fast-fourier transform analysis, and then displaying the frequency. The use of the feedback signal results in a self-tuning resonant loop. Open loop versions may also be used. The apparatus includes a base supporting a fixed support and a transducer which in turn supports a moveable support. The transducer vibrates the moveable support transversely to the direction of travel of the filament, thereby inducing a transverse vibrational mode. The output of the transducer is amplified and used to drive a second amplifier to produce a self-tuning resonant loop. In the open loop version a signal generator is used to drive the transducer through a frequency range, during which the amplitude peak is identified.
摘要翻译： 提供了一种用于确定移动细丝的质量密度的方法和装置。 该方法包括以下步骤：在两个支撑件之间提供细丝，拉紧细丝，引起振动到支撑件之间的细丝部分，使用放大的反馈信号加强振动，检测振动频率数据， 傅立叶变换分析，然后显示频率。 使用反馈信号导致自谐振谐振回路。 也可以使用开环版本。 该装置包括支撑固定支撑件的基座和继而支撑可移动支撑件的换能器。 传感器横向振动细长度方向的移动支架，从而引起横向振动模式。 换能器的输出被放大并用于驱动第二放大器以产生自调谐谐振回路。 在开环版本中，信号发生器用于驱动换能器通过频率范围，在该频率范围内识别振幅峰值。
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公开(公告)号：US5057338A
公开(公告)日：1991-10-15
申请号：US524109
申请日：1990-05-16
CPC分类号： B05C19/02 , B29B15/12 , D02J1/18 , D06M23/08 , B29K2105/251 , Y10S118/05
摘要： This invention is a process for the uniform application of polymer powder particles to a filamentary material in a continuous manner to form a uniform composite prepreg material. A tow of the filamentary material is fed under carefully controlled tension into a spreading unit, where it is spread pneumatically into an even band. The spread filamentary tow is then coated with polymer particles from a fluidized bed, after which the coated filamentary tow is fused before take-up on a package for subsequent utilization. This process produces a composite prepreg uniformly without imposing severe stress on the filamentary material, and without requiring long, high temperature residence times for the polymer.
摘要翻译： 本发明是将聚合物粉末颗粒以连续的方式均匀地施加到丝状材料上以形成均匀的复合预浸料材料的方法。 将丝状材料的纤维束在精心控制的张力下进料到扩散单元中，其中气流扩展成均匀的带。 然后将扩展的丝状丝束从流化床涂覆聚合物颗粒，之后将涂覆的丝状丝束卷绕在包装上以供随后使用。 该方法均匀地生产复合预浸料，而不会对丝状材料施加严重的应力，并且不需要聚合物的长的高温停留时间。
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