针对多辊轴辅助高黏树脂熔融浸渍连续纤维的过程, 基于达西定律、 微元法及展开理论, 建立了包含各影响因素的浸渍表达式。对所建立的表达式赋予实验条件进行计算, 结果与已有实验结果吻合良好。理论分析表明： 用辊轴法对纤维束进行分散, 当多辊轴水平布置时, 对纤维展开辅助作用比较小, 应采用错位排列; 辊轴个数增加, 纤维张力增加（增加纤维断裂风险）, 宜采用3～5个辊轴。
Based on theories of Darcy-law, micro-element and the fiber spreading, this paper extended the pin-assisted melt impregnation theory which traditionally built for single pin, to multi pins-assisted melt impregnation, in particular for the high viscosity thermoplastic resin. The equation in terms of all of influence factors for multi pins-assisted melt impregnation was developed. The theoretical prediction calculated with assigned parameters was in accordance with the experimental data reported. The results show: pins arrangement for the fiber spreading should be in zigzag as the horizontally-arranged pins has less spread effect; as the fiber tension will raise greatly with adding the number of impregnation pins, which increases the fiber break risk, the number of impregnation pins ought to be 3~5.
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