基于X射线数字成像技术的管母线焊缝缺陷检测实验研究

焊缝缺陷是影响管母线性能的主要因素。根据管母线典型焊缝缺陷的特征,结合X射线数字成像(DR)系统Rhythm软件测量技术,推导了特定缺陷实际尺寸的理论计算方法,提出了一套基于DR技术的焊缝缺陷实际尺寸计算方法。利用本文提出的方法计算了像质计的长度并与实际尺寸进行了对比,充分验证了本文提出的基于DR技术的焊缝缺陷实际尺寸计算方法的正确性,根据实验室拍摄得到的管母线焊缝缺陷的X射线数字图像,利用该方法对气孔、未焊透等缺陷实际尺寸进行了计算,为定量研究管母线焊缝缺陷对其性能的奠定了基础。

The tubular bus-bar weld defect experiment study based on the X-ray digital radiography

Weld defects are the main factors influencing the Tubular bus-bar performance. According to the characteristics of pipe Tubular bus-bar typical weld defects, combined with X-ray digital radiography (DR) system Rhythm software measurement technology to derive the actual size of the specific defect theory calculate method, this paper puts forward a set of DR technology method to calculate the actual size of weld defects. The use of the proposed method to calculate the length of the IQI and compare with the actual size, which fully verify the DR technology-based weld defects actual size calculate method is correct. According to the laboratory captured by the X-ray images of Tubular bus-bar weld defects, using the proposed method to calculate the actual size of porosity defects and incomplete penetration defects, which laid a solid foundation for quantitative studies of the performance by the Tubular bus-bar weld defect.