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    • 6. 发明申请
    • Method for rapid manufacture of carbon-based tooling for melt infiltration
    • 用于快速制造熔体渗透的碳基模具的方法
    • US20090169738A1
    • 2009-07-02
    • US12003637
    • 2007-12-28
    • Paul Edward GrayRoger Lee Ken Matsumoto
    • Paul Edward GrayRoger Lee Ken Matsumoto
    • C23C18/02B29C39/00
    • C23C18/02C04B35/573C04B35/62635C04B35/6267C04B35/6269C04B35/83C04B2235/386C04B2235/3873C04B2235/425C04B2235/526C04B2235/604C04B2235/9623
    • A method of manufacturing a carbon-based tooling for use as the support during melt infiltration processing of a prepreg preform used, for example, to manufacture turbine engine components, comprising forming an admixture of chopped carbon fibers, graphite powder and a high durometer thermosetting organic resin, applying a potion of the admixture at room temperature onto the surface of an aluminum die, initially curing the admixture as applied to the aluminum die for a period of 3-5 hours at a temperature of between about 100 and 200 degrees C., removing the carbon-based tooling from the aluminum die and carbonizing the tooling by heating the initially cured tooling to a temperature of about 750 degrees C for a period of about 40 hours. The carbon-based tooling according to the invention retains its shape-maintaining function during the high temperature melt infiltration and does not require subsequent machining after formation, thereby providing a rapid, cost-effective method for creating a carbon-based support tool that remains stable at high temperatures.
    • 制造用于例如用于制造涡轮发动机部件的预浸料预成型件的熔融浸渗加工期间用作支撑体的碳基模具的方法,包括形成切碎的碳纤维,石墨粉末和高硬度热固性有机物的混合物 树脂,在室温下将一部分混合物施加到铝模具的表面上,最初在约100至200℃的温度下将施加于铝模头上的混合物固化3-5小时, 从铝模具中去除碳基模具并通过将初始固化的模具加热至约750℃的温度约40小时来对模具进行碳化。 根据本发明的碳基模具在高温熔体浸渗期间保持其形状保持功能,并且在成型后不需要随后的机加工,从而提供用于产生保持稳定的碳基支撑工具的快速,经济有效的方法 在高温下。