Invention Grant
US08210841B2 Apparatus and method for preform relaxation and flow control in liquid composite molding processes 失效
液体复合成型工艺中预制件松弛和流动控制的装置和方法

Apparatus and method for preform relaxation and flow control in liquid composite molding processes
Abstract:
A vacuum-induced injection molding apparatus is disclosed. The apparatus includes a tool surface having an injection port extending therethrough. A flexible film extends over and is sealingly coupled to the tool surface. The flexible film comprises an outer surface and an inner surface such that the flexible film inner surface and the tool surface define a volume. A vacuum chamber is sealingly coupled to the outer surface of the flexible film. A vacuum port is in fluid communication with the volume. A method of injection molding a polymer matrix composite is also disclosed.
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