在自动铺带成型过程中,粘性和铺覆性是用于描述预浸料是否适合铺贴的两个重要因素,将粘性和铺覆性分别独立地研究能更好地理解预浸料的铺放适宜性.本文主要是针对预浸料的粘性进行探索,论述了预浸料粘性的物理意义,总结了当前国内外预浸料粘性的测量及表征方法,提出了以”平均剥离力”定量表征预浸料的粘性,并在自主搭建的试验平台上,研究了自动铺带成型过程中的主要工艺参数(取出时间、铺放压力、铺放速率、热风温度等)对预浸料粘性的影响.实验结果表明,在一定范围内,预浸料的粘性随取出时间先增大后减小,而随铺放压力的增加、铺放速率的减小、热风温度的升高而增大,为自动铺带工艺参数的控制提供了参考.
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