工艺与制造英文2023
基于CF/PEKK预浸料连续拉挤工艺的预成型
Preforming based on CF/PEKK prepreg continuous pultrusion process
Yu Liu, Junwei Qi, Jiaqi Shi, Zhitong Cheng
摘要整理
预浸料在预成型模具上连续弯曲变形，最终从平面形状过渡到帽形长梁截面形状，进入热压模具。该过程涉及预浸料的固有性能、压力和温度等工艺参数控制以及几何特征等多种因素，均会影响最终效果。不当的工艺参数可能导致预浸料在预成型阶段产生褶皱等缺陷，这些缺陷在后续热压工艺中无法消除。因此，需要分析预成型阶段预浸料层褶皱缺陷的诱发因素，探索最优预成型方法，使预浸料层以理想的帽形进入热压模具。这对提高预制混凝土质量、增强产品稳定性和提高生产效率具有重要意义。
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