高性能Q420qENH耐候桥梁钢焊接试验

Welding tests of high performance Q420qENH weathering bridge steel

摘要: 文中针对高性能Q420qENH耐候桥梁钢板，进行了母材复验、焊材熔敷金属试验、钢板焊接性试验、对接接头系列温度冲击试验以及典型接头的焊接工艺评定试验，评价和分析了该钢的力学、焊接及耐候性能，为应用于大型耐候钢桥梁制造提供了参考依据。

Abstract: For high performance Q420QENH weathering bridge steel plate in this paper,the re-inspection of the base material,the deposited metal test of the welding material,the weldability test of the steel plate,series of temperature impact test of the butt joint and the welding procedures qualification test of the typical joint were carried out to evaluate and analyze mechanical properties,weldability and weather resistance of the steel. The results could provide reference for the application of Q420qENH weathering steel in bridge fabrication.