高强钢厚板焊接最佳热输入研究  

Research on the welding process of high strength steel plate

作　　者：张建平 阙子雄 刘代龙 张达飞 章庆安 

机构地区：[1]浙江精工钢结构集团有限公司,浙江绍兴312030

出　　处：《电焊机》2014年第2期27-34,共8页Electric Welding Machine

摘　　要：通过四组钢板对接对比试验,母材为Q460E-Z35,焊接方法分别为SMAW和GMAW-C02,通过改变焊接运条方式来改变焊接热输入,焊接接头经过UT探伤后,通过拉伸、弯曲、冲击、硬度、金相试验分析不同焊接热输入对焊接接头性能的影响.试验表明,采用多层多道错位焊接技术,焊接热输入的宽容度为15～30 kJ/cm,可以使焊接接头获得最优的综合性能.Through the comparing test of 4 groups of steel plate butt joint, the base material is the Q460E-Z35 ,the welding method respectively is SMAW and GMAW-CO2,when welding,to change the welding heat input by changing the welding operation mode, welding joint after UT detection, analyze the different effect of welding heat input on the welding joint performance by stretching, bending, impact, hardness, metallographic test. The test show that,using ＂ Multi-layer and multi-pass dislocation welding technology＂ ,The welding heat input ＂width＂ of 15-30 kJ/cm,the welding joint will obtain the best comprehensive properties.

关 键 词：高强钢焊接 宽容度 多层多道错位焊 摆动 

分 类 号：TG457.11[金属学及工艺—焊接]