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Resin impregnation and processing technique for rigidizing net- shaped fibrous skeletal composite preforms
Resin impregnation and processing technique for rigidizing net- shaped fibrous skeletal composite preforms
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机译:网状纤维骨架复合材料预成型件的树脂浸渍与加工工艺
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摘要
The invention relates to an impregnation and processing technique for dry fiber composite preform net shapes and ensures maximum mechanical properties in finished structural fiber reinforced composite parts especially in water, and results in composite parts with a low internal void content. The proposed process is not dependent on any pumping action whether due to vacuum or positive pressure to cause the resin to flow into and around the skeletal structure of the dry fiber preform. The process is essentially dependent on the concept of gravity flow in a sandwiched apparatus wherein neat resin cast sheets are placed on both faces of a dry fiber preform shape to create a prepregged (i.e., infiltrated) structure.
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