Continuous fiber reinforced resin base composite 3D printing wire preparing method and device
A reinforced resin-based, 3D printing technology, applied in the direction of additive processing, 3D object support structure, manufacturing tools, etc., can solve the problems of thermoplastic resin defects, difficult fiber and resin infiltration, low strength and hardness, etc., to improve various performances , expand the application field, the effect of excellent comprehensive performance
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[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] A method for preparing continuous fiber-reinforced resin-based composite material 3D printing filaments, selecting dry fiber tows and thermosetting resin prepolymers and their initiators, thermoplastic resins or mixed resin systems that are solid at room temperature as raw materials, and fiber filaments The bundles are sequentially processed by multiple spreading, splitting, pre-impregnated hot-melt resin, and yarn joining to obtain continuous fiber-reinforced resin-based composite 3D printing filaments.
[0024] The dry fiber tow is one or more of carbon fiber, glass fiber and Kevlar fiber, one or more.
[0025] refer to figure 1 , the device used in the above-mentioned preparation method includes a fiber tow 2 that is placed on the unwinding mechanism 1, and the fiber tow 2 is released by the unwinding mechanism 1 and then passes through the unwinding guide r...
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