RTM wet molding process of plate body
A board body and process technology, applied in the field of RTM wet molding process of the board body, can solve the problems of not being able to reduce the processing steps of the board body, unfavorable tightness of the internal connection of the board body, and increasing the service life of the board body itself, so as to achieve The raw material processing steps are simple, the processing and mixing effect is good, and the effect of improving the firming effect
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Embodiment 1
[0021] A kind of RTM wet molding process of plate body, comprises the following steps:
[0022] 1) Stack the pre-processed fabrics sequentially from top to bottom. According to specific needs, 5-8 layers can be stacked. Coat each layer of the fabric with the previously prepared reinforcement resin and wet it. The laminated fabric is transferred to the hot mold, the hot-pressing temperature is 120°C-200°C, the hot-pressing pressure is 6Mpa, and the hot-pressing time is 8-10min;
[0023] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcement resin into the mold, let it stand for 10 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The two sides fit each other, and then move the upper end of the mold up by 0.5mm-1mm, and at the same time increase the HP-RTM injection pressure to 90bar, and then inject the reinforcement resin evenly into the mold to a certain thicknes...
Embodiment 2
[0027] A kind of RTM wet molding process of plate body, comprises the following steps:
[0028] Stack the pre-processed fabrics from top to bottom. According to specific needs, 5-8 layers can be stacked. Coat each layer of the fabric with the previously prepared reinforcing resin and wet it. The layer of fabric is transferred to the hot mold, the hot-pressing temperature is 130°C-190°C, the hot-pressing pressure is 8Mpa, and the hot-pressing time is 12-14min;
[0029] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcing resin into the mold, let it stand for 15 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The ends of the mold are fitted together, and then the upper end of the mold is moved up by 0.5mm-1mm, and the HP-RTM injection pressure is increased to 100bar, and then the reinforcement resin is evenly injected into the mold to a certain thickness, and the ...
Embodiment 3
[0033] A kind of RTM wet molding process of plate body, comprises the following steps:
[0034] Stack the pre-processed fabrics from top to bottom in sequence. According to specific needs, 5-8 layers can be stacked. Each layer of the fabric is coated with a previously prepared reinforcing resin and wet, and then the wet stack The first layer of fabric is transferred to the hot mold, the hot pressing temperature is 140°C-180°C, the hot pressing pressure is 10Mpa, and the hot pressing time is 8-10min;
[0035] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcement resin into the mold, let it stand for 20 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The ends fit each other, and then move the upper end of the mold up by 0.5mm-1mm, and at the same time increase the HP-RTM injection pressure to 110bar, and then inject the reinforcement resin evenly into the mold to...
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