P92钢主蒸汽管道焊缝缺陷检测与修复

Inspection and Repairment on Welding Seam of P92 Steel Main Steam Pipe

采用表面探伤和超声波探伤方法对P92钢主蒸汽管道焊缝进行缺陷检测,能够有效的检验出气孔、夹渣、未熔合等类型缺陷,经挖补缺陷消除,通过科学的焊接工艺制定及严格的焊后热处理工艺控制,保证了焊接修复质量,消除了主蒸汽管道焊缝缺陷存在的隐患,为机组的安全运行提供了保证。

Surface detection and ultrasonic detection can be used to inspect the flaw on the welding seam of main steam pipe of P92 steel. The Haw types of air hole, slag inclusion, incomplete fusion, and so on, can be detected effectively, and then removed consequently by defect repair. The quality of welding repair can be guaranteed by constitution of scientific welding procedure and control of heat treatment process after welding. As a result, flaw hidden danger on the welding seam of main steam pipe can be removed to guarantee the safe operation of the units.