Taking ultrasonic testing results for hollow shafts of MU wheelsets as the research object,in accordance with the testing regulations for the hollow shaft of MUs,and through investigating the factors affecting the testing results,such as the testing equipment,operating standards,environment,and operation,we surveyed the flaw detection equipment maintenance and testing operation methods for the current MU service repair and the advanced repair and compared and analyzed their advantages and disadvantages,and proposed optimization suggestions on the basis of meeting the requirements of the hollow shaft testing technique,which provides a reference for overhaul and repair.
维普
万方数据