在用压力容器检验中关于母材夹层的讨论

对在用压力容器进行厚壁检测时,发现测厚值变小,但所测部位没发现腐蚀状况,很可能是母材有夹层缺陷。为了明确缺陷类型和消除缺陷,做进一步的无损检测,确定缺陷级别,以进行焊接返修,达到保证设备安全运行目的。

In the Test of Pressure Vessel on the Parent Metal Sandwich Discussion

The thick wall detection in the pressure vessel, found that the thickness value is smaller, but the site found no corrosion, is likely to be the parent metal interlayer defects. In order to clarify the types of defect and defect elimination, do NDT further, determine the defect level, for welding repair, to ensure safe operation of the equipment.