介绍一种螺旋埋弧焊钢管的超声波检验校验方法,通过对新型参考反射体的校验、对现有超声波检验设备做的基本分析并加以改造,从而实现在现有基础上新增一种校验方法,作为对大壁厚SAWH钢管的焊缝中部区域超声波探伤的补充。对该方法进行了详细描述,并在大壁厚SAWH钢管试制过程中对其可行性和有效性进行了验证。 A method of ultrasonic inspection of spiral submerged arc welded steel pipe is introduced. Through the verification of the new type of reference reflector, the basic analysis and modification of the existing ultrasonic inspection equipment are introduced. In this way, a new type of Verification method, as a large wall thickness of the SAWH steel weld central ultrasonic flaw detection supplement. The method is described in detail, and its feasibility and effectiveness are verified during the trial manufacture of large wall thickness SAWH steel pipe.