摘要
介绍了我国正在开发的桥梁用S31603+Q420qENH不锈钢-耐候钢复合钢板的焊接试验研究,包括母材的化学成分、力学性能、热加工工艺性能试验及焊接性试验等,评价了S31603+Q420qENH复合钢板的综合力学性能、热加工性能和焊接性。针对S31603+Q420qENH复合钢板在大渡河特大桥项目上的应用,进行了焊接工艺评定试验,接头-40℃冲击吸收能量≥60J,接头性能良好。依据焊接工艺评定试验编制的焊接工艺指导了大桥的生产制造,对S31603+Q420qENH复合钢板在其他项目中的应用具有借鉴意义。
Introduces the welding test research of S31603+Q420qENH application of stainless steel-weathering steel clad plates for bridges currently being developed in China,including the chemical composition,mechanical properties,hot processing performance tests,and weldability tests of the base material.The comprehensive mechanical properties,hot processing performance,and weldability of the S31603+Q420qENH steel plate are evaluated.A welding process qualification test was conducted for the application of S31603+Q420qENH clad plates in the Daduhe Bridge project.The-40℃impact energy of the joint was≥60J,and the joint performance was good.The welding process developed based on the welding evaluation test guided the production and manufacturing of the bridge,which has reference significance for the application of S31603+Q420qENH clad plates in other projects.
作者
刘洪武
徐向军
何涛
范军旗
高建忠
宋红飞
LIU Hongwu;XU Xiangjun;HE Tao;FAN Junqi;GAO Jianzhong;SONG Hongfei(China Railway Hi-tech Industry Co.,Ltd.,Beijing 100070,China;China Railway Shanhaiguan Bridge Group Co.,Ltd.,Qinhuangdao 066205,Hebei,China)
基金
国家重点研发计划(2022YFB3706400)。
关键词
不锈钢
耐候钢
复合钢板
应用试验
stainless steel
weathering steel
clad steel plate
application test
