碳纤维增强复合材料在汽车副车架中的应用

摘要

采用碳纤维布、聚对苯二甲酸乙二酯(PET)泡沫和阻燃环氧树脂，经真空辅助成型工艺制备了碳纤维泡沫夹芯复合材料。利用碳纤维泡沫夹芯复合材料代替原有的金属材料，采用真空导入工艺制作汽车副车架，为考虑承重及安装方便，设计了边梁、主梁和横梁的制作及搭接工艺。结果表明，采用此工艺大大减轻了汽车副车架的质量，整个副车架的总重仅为116 kg。%Carbon fiber foam sandwich composites was prepared by using carbon fiber cloth,polyethylene terephthalate (PET) foam and flame retardant epoxy resin through vacuum assisted resin transfer molding process. Auxiliary frame was made by using carbon fiber foam sandwich composites instead of metal materials through import vacuum technology. In order to consider the load bearing and convenient installation,and overlapping process of edge beam, main beam and side beam was designed. The results show that the weight of auxiliary frame is greatly reduced and the total weight of the whole auxiliary frame is 116 kg only.