CAI Chunlin. CUT-OUT AND WELD-UP TREATMENT OF DEFECTED WELDSEAMS FOR THICK-WALL ALLOY STEEL TUBE[J]. Thermal power generation, 2004, (11): 68-74. DOI: 10.19666/j.rlfd.2004.11.023.
高压导汽管与法兰对接焊缝挖补处理
摘要
某电厂 1号机组汽轮机通流部分改造中
在进行导汽管的安装时
经超声波探伤检查发现两个高压导汽管焊口存在较严重缺陷
对此进行挖补处理后
母材和焊缝硬度符合要求
原有缺陷全部消除
Abstract
In the course of retrofitting flowpassage for steam turbine of unit NO.1 in one power plant
it was found through ultrasonic inspection in installing the steam conduit tube that comparatively serious defects existing on two weld seams of the said steam conduit tube
and cutout and weldup treatment has been carried out. After abovementioned treatment the hardness of base metal and weld seam is in conformity with requirements