| 真空辅助树脂灌注工艺成型泡沫夹芯结构工艺设计与控制 |
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| 引用本文： | 熊美蓉,段跃新,董安琪,肇研,陈吉平,苏佳智. 真空辅助树脂灌注工艺成型泡沫夹芯结构工艺设计与控制[J]. 复合材料学报, 2013, 30(3): 28-34 |
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| 作者姓名： | 熊美蓉 段跃新 董安琪 肇研 陈吉平 苏佳智 |
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| 作者单位： | 1. 北京航空航天大学 材料科学与工程学院, 北京 100191;2. 上海飞机制造有限公司, 上海 200436 |
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| 摘 要： | 采用无屈曲织物(NCF)、 CYCOM® 890 RTM树脂体系和聚甲基丙烯酰亚胺(PMI)泡沫以及真空辅助树脂灌注成型工艺(VARI)成型泡沫夹芯复合材料平板, 结合力学性能测试和微观结构分析等手段研究了成型过程中抽胶对夹芯板界面质量以及纤维体积分数的影响, 分析产生的缺陷类型及原因, 优化了工艺参数。结果表明: 抽胶有利于提高泡沫夹芯板的纤维体积分数和力学性能, 在100～120 ℃温度范围内进行30 min的抽胶, 工艺稳定, 层间剪切强度和弯曲强度显著提高。
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| 关 键 词： | VARI 抽胶温度 抽胶时间 弯曲强度 剪切强度 |
| 收稿时间： | 2012-04-25 |
Process design and control of the VARI forming foam-core structure |
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| XIONG Meirong,DUAN Yuexin,Dong Anqi,ZHAO Yan,CHEN Jiping,SU Jiazhi. Process design and control of the VARI forming foam-core structure[J]. Acta Materiae Compositae Sinica, 2013, 30(3): 28-34 |
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| Authors: | XIONG Meirong DUAN Yuexin Dong Anqi ZHAO Yan CHEN Jiping SU Jiazhi |
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| Affiliation: | 1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China;2. Shanghai Aircraft Manufacturing Co Ltd, Shanghai 200436, China |
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| Abstract: | By use of non-crimp fabric(NCF), CYCOM® 890 RTM and PMI foam, the influence of pumping on sandwich panel interface quality and fiber volume fraction in VARI process were studied in this article, the types and causes of defects by the means of mechanical properties testing and microstructure analysis of the composite sandwich plate were analyzed and the process parameters were optimized. The results show that the pumping step is conducive to improve fiber volume fraction and mechanical properties for the composite sandwich structure. Pumping from 100 ℃ to 120 ℃ within 30 min in a stable technology, the interlaminar shear strength and flexural strength increase significantly. |
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| Keywords: | VARI pumping temperature pumping time flexural strength shear strength |
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