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    • 2. 发明申请
    • VARTM FLOW MODIFICATIONS FOR LOW VISCOSITY RESIN SYSTEMS
    • 用于低粘度树脂体系的VARTM流动修饰
    • WO2012026980A3
    • 2012-06-21
    • PCT/US2011001488
    • 2011-08-23
    • MATERIA INCCORRAL SERGIOCRANE STEPHENSTEPHEN ANTHONY RCRUCE CHRISTOPHER JFLORES EVERARDO GARCIA
    • CORRAL SERGIOCRANE STEPHENSTEPHEN ANTHONY RCRUCE CHRISTOPHER JFLORES EVERARDO GARCIA
    • B29C70/44B29C70/48
    • B29C70/021B29C70/443B29C70/546Y10T428/31924
    • A vacuum-assisted resin transfer molding (VARTM) method is disclosed, the method comprising: providing a vacuum-assisted resin transfer mold assembly comprising a mold having a first mold surface and a second mold surface arranged to enclose a laminate assembly within a space between the first and second mold surfaces when the laminate assembly is placed on the first mold surface; providing a laminate assembly comprising a laminate pre-form, a peel ply, and a resin distribution media pervious to the flow of a resin, the laminate pre-form having first and second surfaces, the first surface of the pre-form positioned to be in contact with the first mold surface, the peel ply positioned such that the second surface of the laminate pre-form is in contact with the peel ply, and the resin distribution media positioned to be contained within the first and second mold surfaces; positioning at least one resin flow control structure to modify the flow of resin within the resin distribution media; providing at least one inlet and at least one outlet in the laminate assembly such that the resin can be introduced into the assembly through the inlet; arranging and sealing the second mold surface to enclose the laminate assembly within the space between the first and second mold surfaces such that a vacuum can be pulled on the laminate assembly contained within the space between the first and second mold surfaces; applying a vacuum to the mold assembly; allowing the resin to flow into the laminate assembly through the at least one inlet such that the resin flows into the resin distribution media; allowing the resin to flow out of the laminate assembly through the at least one outlet; and allowing the resin to cure in the laminate assembly to form a laminate material. An article of manufacture made by said VARTM method.
    • 公开了一种真空辅助树脂传递模塑(VARTM)方法,该方法包括:提供一种真空辅助树脂转移模具组件,其包括具有第一模具表面和第二模具表面的模具,该模具布置成将层压组件包围在 当层压组件放置在第一模具表面上时的第一和第二模具表面; 提供层压组件,其包括层压预成型件,剥离层和可透过树脂流动的树脂分配介质,所述层压预成型件具有第一和第二表面,预成型件的第一表面定位为 与第一模具表面接触,剥离层定位成使得层压预成型件的第二表面与剥离层接触,并且树脂分配介质定位成容纳在第一和第二模具表面内; 定位至少一个树脂流量控制结构以改变树脂分布介质内的树脂流动; 在所述层叠组件中提供至少一个入口和至少一个出口,使得所述树脂可以通过所述入口被引入到所述组件中; 布置和密封第二模具表面以将层压体组件包围在第一和第二模具表面之间的空间内,使得可以在包含在第一和第二模具表面之间的空间内的层压组件上拉动真空; 向模具组件施加真空; 允许树脂通过至少一个入口流入层压组件,使得树脂流入树脂分布介质; 允许树脂通过至少一个出口流出层压组件; 并且允许树脂在层压组件中固化以形成层压材料。 由VARTM方法制造的制品。