水压钢管是水电站的一个重要组成部分,一般都有着较严格的质量要求,以保证水电站能长期安全运行。但水压钢管在长期运行中,由于泥砂的磨损和水质的腐蚀,会使管壁逐渐减薄;由于水流振动作用所引起的金属疲劳,会使钢管本身原来的缺陷(材料上和 Hydraulic steel pipe is an important part of hydropower stations, generally have more stringent quality requirements to ensure long-term safe operation of hydropower stations. However, in the long-term operation of hydraulic steel pipe, the wall of the pipe will be gradually thinned due to the abrasion of the sand and the corrosion of water quality. The metal fatigue caused by the vibration of the water flow will make the original defects of the steel pipe itself