基于复合填充材料的超声干耦合检测研究  

Research on Ultrasonic Dry Coupling Detection Based on Composite Filling Materials

作　　者：何媛媛 唐东林[2] 饶胜 王平杰 He Yuanyuan;Tang Donglin;Rao Sheng;Wang Pingjie(Sichuan Special Equipment Inspection and Research Institute, Chengdu 610000;State Key Laboratory of Southwest Petroleum University ,Chengdu 610500)

机构地区：[1]四川省特种设备检验研究院,成都610000 [2]西南石油大学国家重点实验室,成都610500

出　　处：《中国特种设备安全》2025年第3期34-38,45,共6页China Special Equipment Safety

基　　金：国家市场监督管理总局科技计划资助项目(2022MK115);南充市-西南石油大学市校科技战略合作项目(23XNSYSX0048)。

摘　　要：本文针对超声干耦合检测的固体耦合材料展开研究。在干耦合检测中,应当选择声衰减系数小、具备一定的机械性能且与被检工件阻抗匹配的固体耦合材料。本文通过实验对比得出,以质量分数4%的白炭黑为固体填料粉末,其与硅橡胶液体基料充分混合制成的复合填充材料声学性能最好。以研制的复合填充材料制成干耦合探头轮,对阶梯板的不同厚度进行厚度检测,实验表明基于此类固体耦合材料的干耦合检测满足检测要求。This article focuses on the study of solid coupling materials for ultrasonic dry coupling detection.Ultrasonic dry coupling detection requires a small sound attenuation coefficient and coupling materials that match the impedance of the tested workpiece,as well as solid coupling materials with certain mechanical properties.This study compared and analyzed through experiments that a composite filling material made of solid filler powder with 4%mass fraction of white carbon black,which was fully mixed with silicone rubber liquid matrix,had the best acoustic performance.A dry coupling probe wheel was made using a developed composite filling material to detect the thickness of different stepped plates.The experiment shows that the dry coupling detection based on this type of solid coupling material meets the detection requirements.

关 键 词：超声检测 干耦合检测 复合材料 

分 类 号：X924.2[环境科学与工程—安全科学]