prepressing

The main factor of spring back density is prepressing pressure, next are compression time and compression number of times.The effect of moisture content was not significant.

回弹后密度影响因子主要为力，其次为加时缩次数，而含水率对板坯回弹密度影响不明显。

In the compression moulding technology, preheat and prepressing procedures are added to improve the flowability of the bond and physical and mechanical properties of the product.

缩模塑工艺中，增加预热、预工序，提高粘合剂性产品物理机械性能。