摘要
某厂1000万t/a常减压蒸馏装置扩能改造工程施工过程中,材质为1Cr5Mo的压力管道有4道环向对接焊缝在现场水压试验时发生开裂。通过现场调查、资料审查、补充检验项目和理论计算等方式,对压力管道焊缝开裂原因进行了分析,提出了返修和改进建议,以保证装置使用过程中的安全。
Four cracks were found in the butt welding of circumferential seam of the 1Cr5Mo pipe in the 10 Mt/a atmospheric distillation unit during the hydraulic test.The reason of cracks was investigated by on-scene investigations,analyzing the design and construction data,theory calculation and so on.Countermeasures were proposed to assure safety of the unit.
出处
《辽宁化工》
CAS
2010年第5期545-547,550,共4页
Liaoning Chemical Industry
关键词
焊缝开裂
分析
处理
Welding cracks
Analysis
Countermeasures
