真空压力对玻璃纤维复合材料显微组织的影响  

Effect of Vacuum Pressure on Microstructure of Glass Fiber Composites

作　　者：刘佳[1] 于竹 杨五兵 孟凡波[1] 李营 LIU Jia;YU Zhu;YANG Wu-bing;MENG Fan-bo;LI Ying(AVIC SAC Commercial Aircraft Co.,Ltd.,Shenyang 110169,Liaoning,China)

机构地区：[1]中航沈飞民用飞机有限责任公司,辽宁沈阳110169

出　　处：《合成纤维》2024年第11期73-76,共4页Synthetic Fiber in China

基　　金：2022年沈阳市“揭榜挂帅”产业共性技术项目(22-301-1-08)。

摘　　要：为解决航空航天工业中先进的玻璃纤维复合材料工艺控制困难的问题,并优化全生命周期中制造环节的质量,以三组不同真空压力和压实时间为变量条件,采用正交试验法,对三组试验件分别采用外观目视检测、超声波检测及金相显微检测三种方式进行内外部缺陷检测,验证真空压力对玻璃纤维夹层材料宏观和微观影响及趋势。结果表明:随着真空压力增大和压实时间延长,材料厚度呈现减小趋势;真空压力和压实时间对声波检测结果影响不明显;胶膜厚度虽然呈压缩趋势,但均衡性变差;材料内部纤维缺陷或组织缺陷都有明显改善。In order to solve the problems with difficult process control of advanced glass fiber composites in aerospace and aviation industries and optimize the quality of manufacturing links in the whole life cycle,us-ing three groups of different vacuum pressure and compaction time as variable conditions,orthogonal test method was adopted to detect internal and external defects of the three groups of test pieces by visual in-spection,ultrasonic inspection and metallographic microscopy.The macroscopic and microscopic effects and trends of vacuum pressure on glass fiber sandwich materials were verified.The results show that with the increase of vacuum pressure and compaction time,the material thickness decreases;the effect of vacu-um pressure and compaction time on acoustic detection results is not obvious;although the film thickness shows a compression trend,the equilibrium becomes worse;the fiber defects or tissue defects inside the ma-terial have been significantly improved.

关 键 词：玻璃纤维 复合材料 真空压力 金相 孔隙 

分 类 号：TQ343.1[化学工程—化纤工业] TB333[一般工业技术—材料科学与工程]