碳/环氧复合材料管形件超声底板反射检测法

Bottom Reflection Method for Carbon/Epoxy Composite Pipe

新型运载火箭的推力支架使用碳/环氧复合材料管形件组装而成。针对该类管形件的成型工艺及特征,文章在对比了多种常用的超声检测方法的基础上,提出了复合材料管形件内部质量的底板反射检测方法。文中运用了超声C扫描系统,采用底板反射法对设计的人工缺陷及实际产品进行检测。结果表明,所采用的检测方法能够准确地检测出人工缺陷,并且可以有效地实现产品内部缺陷的检测。

Carbon epoxy composite bars were used to the thrust stents of the new launch vehicle. According to the filament winding process and characteristics of the tubular parts, this paper presents the method of bottom reflection to detect composite tubular based on the comparison of the conventional ultrasonic testing method. Using uhrasound C scanning system, this paper adopts the method to artificial defects and the actual products detection. The results show that the detection method can detect the artificial defects accurately, and achieve the product internal defect detection effectively.