汽车顶棚吸音性能的影响因素与工艺改进  

Influence Factors on Sound Absorption Performance and Technological Improvement of Vehicle Ceiling

作　　者：田锐[1,2] 彭玉芝 

机构地区：[1]清远职业技术学院,广东清远511510 [2]清新联统实业有限公司,广东清远511510 [3]广州汽车集团乘用车有限公司,广东广州510300

出　　处：《现代塑料加工应用》2013年第4期25-28,共4页Modern Plastics Processing and Applications

基　　金：2011广东省低碳发展专项基金项目(2011019)

摘　　要：通过对合格和不合格批次的聚氨酯(PU)板材汽车顶棚差异点进行比较,发现PU板材是影响汽车顶棚吸音性能的主要因素;然后对PU板材物性指标进行对比。结果表明:PU板材的透气性是影响汽车顶棚吸音性能的主要原因;通过正交试验法得出影响PU板材透气性的主要因素;最后对PU板材的材料配比和生产工艺进行了优化设计,对优化后方案进行验证跟踪,证明优化后的顶棚产品优于国家和企业标准。The difference between the qualified and unqualified batches of the PU panel vehicle ceiling is compared.It is found that PU panel is the main factors of the sound absorption performance of evhicle ceiling.Then the PU panel physical index was compared.The results show that the PU panel permeability is the main reason of the sound absorption performance.And through orthogonal test method,the main factors of the permeability of PU panel is dedermined.At last,the design of the PU panel and production process were optimized.The potimal scheme is verified and tracked.It is proved that the optimal vehicle ceiling product is superior to national and enterprise standards.

关 键 词：汽车顶棚 聚氨酯板材 吸音性能 正交试验 优化设计 

分 类 号：U463.83[机械工程—车辆工程]