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    • 3. 发明授权
    • Process for producing carbon fiber reinforced carbon materials
    • 碳纤维增强碳材料生产工艺
    • US5205888A
    • 1993-04-27
    • US724892
    • 1991-07-02
    • Isao MochidaRyuji Fujiura
    • Isao MochidaRyuji Fujiura
    • C04B35/83
    • C04B35/83
    • A process for making carbon fiber reinforced materials which not only have desirable qualities which include high strength, high heat resistance, chemical resistance, wear resistance and lightweightness but also which are produced in a short time and at low cost. The process includes the steps of impregnating a carbon fiber assembly with a melt of mesophase pitch or mixing short carbon fibers with the mesophase pitch, shaping the pitch-impregnated assembly or the pitch/short carbon fiber mixture, and firing the same. The process requires that the mesophase pitch used in the process be almost 100% of an optical anistropic phase as examined under a polarizing microscope; have a softening point of no higher than 350.degree. C. and be capable of being carbonized in a yield of at least 70% when gradually heated to a temperature of about 600.degree. C. in an inert gas atmosphere and then held at that temperature for two hours.
    • 一种制造碳纤维增强材料的方法,其不仅具有包括高强度,高耐热性,耐化学性,耐磨性和轻质性,而且在短时间和低成本下生产的所需质量。 该方法包括以下步骤:用中间相沥青的熔体浸渍碳纤维组合物或将短碳纤维与中间相沥青混合,对沥青浸渍的组合物或沥青/短碳纤维混合物进行成型,并对其进行烧制。 该方法要求在该过程中使用的中间相沥青几乎是在偏光显微镜下检查的光学相位相的100%; 软化点不高于350℃,并且在惰性气体气氛中逐渐加热至约600℃的温度时能够以至少70%的产率碳化,然后在该温度下保持 两个小时