从铁道车辆铸钢摇枕、侧架制造标准发展变化看无损检测技术的重要性

Importance of Nondestructive Testing Technology from the Development and Change of Manufacturing Standards for Railway Vehicles Cast Steel Bolsters and Side Frames

以近二十年国内铁道车辆铸钢摇枕、侧架制造标准发展历程为主线,梳理了无损检测技术在摇枕、侧架质量检测方面的应用和变化,重点对TB/T3012—2006和TB/T3012—2016两版摇枕、侧架制造标准中无损检测技术应用和要求进行了对比分析。对数字射线检测技术和工业计算机层析成像检测技术在铸钢件检测方面的应用进行了介绍,这有助于铸造和无损检测工艺人员理解和应用铁道货车铸钢摇枕、侧架制造和相关无损检测标准。

Based on the development process of manufacturing standards for cast steel bolster and side frame of railway vehicles in recent 20 years,the application and change of nondestructive testing technology in the quality inspection of bolster and side frame are presented.The application and requirements of nondestructive testing technology in the manufacturing standards for bolster and side frame of TB/T 3012—2006 and TB/T 3012—2016 are compared and analyzed.This paper also introduces the application of DR(digital radiography)and industrial CT(computed tomography)technology in the detection of steel castings,which is helpful for the foundry and NDT technologists to understand and apply the manufacturing of cast steel bolster and side frame of railway wagons and relevant NDT standards.