The resistance curves were measured with the standard three point bending specimens and the double edge notched tension specimens at different mis-matching welded joint. 对管线用钢焊接接头,测试了标准三点弯曲试样、同种接头及不同匹配状态的双边裂纹拉伸试样的阻力曲线。
Research on Corrosion Property of Double Submerged Arc Welded Joint for H_2S Corrosion Resistance Pipe 抗H2S用管双面埋弧焊焊接接头腐蚀性能研究
There were many KK-type joints with double chords made of welded square hollow sections in the National Stadium under construction, which is formed by two trusses from different directions. The joint was fabricated with serried welds and its construction details were quite complicated. 正在建设的国家体育场两两斜交的主桁架构成了许多双弦杆焊接方管KK型节点,该节点连接焊缝密集,构造极其复杂。