Fiber dipping system and technology for producing fiber reinforced composite by system thereof
A technology of fiber and glue injection device, which is applied in the fiber impregnation system of polyurethane-based fiber-reinforced composite materials and in the field of fiber-reinforced composite materials, which can solve the problem that the pressure cannot reach a sufficient level of fiber, there is no pressure-holding device, and fiber infiltration is poor, etc. problems, to achieve fast and good infiltration, improve production efficiency, and excellent mechanical properties
Active Publication Date: 2015-02-11
COVESTRO DEUTSCHLAND AG
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Problems solved by technology
The injection box suitable for this type of injection method claims to solve the above problems, but because the resin pressure in the injection box and the amount of resin in the injection box cannot be stably controlled, it is easy to cause resin leakage or poor fiber infiltration , especially when adjusting the pultrusion speed or shutting down,
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[0034] Several preferred embodiments of the fiber impregnation system of the present invention will be described below with reference to the accompanying drawings.
[0035] (first preferred embodiment)
[0036] figure 1 is a side view of the first preferred embodiment of the fiber impregnation system of the present invention. Such as figure 1 As shown, the fiber impregnation system is mainly composed of a glue injection device, a pressure holding device and a guide device, wherein the pressure holding device is connected to the guide device through four connecting screws 10, and the glue injection device is arranged at its inlet end and matched with it The connecting flange 2 at the inlet end of the composite material forming and curing device is connected to the guide device, and the pressure maintaining device is positioned relative to the glue injection device through the positioning pin 5 . However, it is well known to those skilled in the art that any type and number o...
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The invention relates to a fiber dipping system and a technology for producing fiber reinforced composite by the system thereof. The fiber dipping system comprises a glue injection apparatus, a pressure maintaining apparatus and a guider. The pressure maintaining apparatus and the glue injection apparatus are respectively connected to the guider, the pressure maintaining is positioned by relative to the glue injection apparatus through a positioning element, and at least a continuous channel for passing the dipping fiber through is formed in the pressure maintaining apparatus and the glue injection apparatus. According to the invention, a seal member capable of ensuring that resin pressure injected in the glue injection apparatus is not decreased. The fiber dipping system is capable of increasing, and keeping and adjusting the resin impregnation pressure in a glue injection box in a stable mode, so that fiber can be rapidly and completely infiltrated.
Description
technical field [0001] The invention relates to a fiber impregnation system suitable for the manufacture of fiber reinforced composite materials. More specifically, the present invention relates to a fiber impregnation system suitable for the manufacture of polyurethane-based fiber-reinforced composite materials. Furthermore, the present invention also relates to a process for manufacturing fiber-reinforced composite materials using the above-mentioned system. Background technique [0002] The traditional fiber pultrusion process mainly adopts the open impregnation method, that is, the fiber, fabric or felt passes through the impregnation tank with pressure rollers or pressure bars, and the resin-containing fibers enter the heating mold after being extruded step by step from the preformed plate and to cure. There are a series of problems in the traditional open dipping method, such as high volatility of volatile organic compounds (VOC), high resin waste rate, and high poro...
Claims
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Login to View More IPC IPC(8): B29C70/40B29C70/52B29C70/54B29C53/56
CPCB29B15/14B29C70/525
Inventor 陈湛S·托雷斯周志平李志江
Owner COVESTRO DEUTSCHLAND AG