发明名称 FABRICATION OF UNIDIRECTIONAL LAMINATE PREPREGS USING TAPE CASTING METHODS AND EQUIPMENT
摘要 <p>The present invention provides a method of forming unidirectional laminate prepreg, comprising the steps of: providing a support table; advancing a plurality of strands oriented generally parallel to each other along at least a portion of the table; positioning a removable carrier material between the strands and the table to support and move with the strands along at least a portion of the table; coating at least a portion of the strands with a resin matrix material to form a pre-cured prepreg; establishing a uniform thickness for the pre-cured prepreg; at least partially curing the matrix material of the pre-cured prepeg to form an at least partially cured prepreg; and accumulating the at least partially cured prepreg. In one nonlimiting embodiment of the invention, the strands comprise a plurality of glass fibers, the carrier material is plastic, the removing step includes the step of positioning an edge of a doctor blade in contact with an upper surface of the pre-cured prepreg to establish the thickness of the pre-cure prepreg, and the at least partially curing step includes the step of passing the pre-cured prepreg through at least one curing and drying oven.</p>
申请公布号 WO2000072643(A1) 申请公布日期 2000.11.30
申请号 US2000014243 申请日期 2000.05.24
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