基于计算机辅助技术PP制件缺陷的无损检测  

Nondestructive Testing of PP Parts based on Computer Aided Technology

作　　者：谢抢来[1] Xie Qianglai(Jiangxi University of Science and Technology,Nanchang 330098,China)

机构地区：[1]江西科技学院,南昌330098

出　　处：《工程塑料应用》2020年第12期114-117,共4页Engineering Plastics Application

基　　金：江西省教育厅科学技术研究项目(GJJ191001,GJJ191004)。

摘　　要：利用一种计算机辅助的红外探伤技术对所模拟的聚丙烯(PP)管材中裂纹、腐蚀和积垢缺陷进行了探测。实验结果表明,对于这三种缺陷,该红外探伤手段均能够快速进行准确地检测,分别可以在0.2,1.0 s和5.0 s内检测到裂纹缺陷、腐蚀缺陷和积垢缺陷。另外,该红外探伤技术对缺陷具有较强的分辨能力。对于裂纹缺陷的检测上限,明显高于X射线检测手段和超声检测手段,能够精准识别长为20 mm,宽为2.0 mm的裂纹;而且该红外探伤技术所获得数据的分辨率和信噪比也较高,分别为D9级别和123。A computer-aided infrared flaw detection technology was used to detect the simulated cracks,corrosion and scale defects in the polypropylene(PP)pipes.The experimental results show that the infrared flaw detection method can quickly and accurately detect crack defects,corrosion defects and scale defects in 0.2 s,1.0 s and 5.0 s,respectively.In addition,the infrared flaw detection technology show a strong ability to distinguish defects.The upper limit of detection for crack defects is significantly higher than that of X-ray detection and ultrasonic testing,and can accurately identify cracks with length of 20 mm and width of 2.0 mm.Moreover,the resolution and signal-to-noise ratio of the data obtained by the infrared flaw detection technology are also high,which are D9 level and 123,respectively.

关 键 词：聚丙烯 管材 缺陷检测 红外探伤 计算机辅助 

分 类 号：V214.8[航空宇航科学与技术—航空宇航推进理论与工程]