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本文介绍了下向焊工艺技术特点及其在天津市静海县杨成庄至大丘庄燃气管网工程施工中的应用,着重介绍了施工程序及操作工艺,并结合焊缝检测结果,对该工程中的常见焊接缺陷进行了分析。
This paper introduces the technical characteristics of down-welding technology and its application in Yangchengzhuang-Daqiuzhuang gas pipe network construction in Jinghai County, Tianjin. The construction procedure and operation process are emphasized. Combined with the test results of weld, The common welding defects were analyzed.