复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (8): 105-109.DOI: 10.19936/j.cnki.2096-8000.20220828.016

• 应用研究 • 上一篇    下一篇

复合材料C形梁R角孔隙率影响因素研究

袁超1, 李锋2, 陈静1, 邱启艳1   

  1. 1.中国航空制造技术研究院复材中心,北京101300;
    2.驻北京地区第五军事代表室,北京101300
  • 收稿日期:2022-03-28 出版日期:2022-08-28 发布日期:2022-09-27
  • 作者简介:袁超(1987-),男,硕士,高级工程师,主要从事先进树脂基复合材料成型方面的研究,zjyuanchao@126.com。

Study on influencing factors of R-area porosity of composite C purlin

YUAN Chao1, LI Feng2, CHEN Jing1, QIU Qi-yan1   

  1. 1. AVIC Manufacturing Technology Institute, Beijing 101300, China;
    2. The Fifth Military Representative Office in Beijing, Beijing 101300, China
  • Received:2022-03-28 Online:2022-08-28 Published:2022-09-27

摘要: 针对复合材料C形梁结构,通过工艺软模、预压实操作及工艺参数的改变进行了C形梁R角孔隙率影响因素研究。结果表明:在固化过程中采用工艺软模能明显降低C形梁R角区域的孔隙率,在一定程度内,软模刚度提高能降低孔隙率,但当软模刚度达到一定程度后,再增加软模刚度不能进一步降低孔隙率;在固化前进行预压实操作能降低C形梁R角区域的孔隙率;提高压力和进行抽真空操作也能降低C形梁R角区域的孔隙率。

关键词: 复合材料, R角, 孔隙率

Abstract: According to the structure of composite C purlin, the influencing factors of R-area porosity of C purlin are studied through the process soft mold, pre-compaction operation and change of process parameters. The results show that the porosity in the R-area of C purlin can be significantly reduced by using the process soft mold in the curing process. To a certain extent, the stiffness of the soft mold can be improved and the porosity can be reduced, but when the stiffness of the soft mold reaches a certain degree, increasing the stiffness of the soft mold can not further reduce the porosity. Pre-compaction before curing can reduce the porosity of R-area of C purlin, and increasing the pressure and vacuum pumping operation can also reduce the porosity in the R-area.

Key words: composite, R-area, porosity

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