70kg级超低碳贝氏体高强钢在液压支架中的应用  

Application of Bainite high-strength steel WH70 on hydraulic support

作　　者：刘占户[1] 李晓娜[2] 许先果[3] 刘成玉[1] 赵建华[1] 

机构地区：[1]重庆大学机械工程学院,重庆400044 [2]成都纺织高等专科学校机械系,四川成都611731 [3]重庆工学院材料学院,重庆400050

出　　处：《电焊机》2008年第11期39-41,共3页Electric Welding Machine

摘　　要：主要对WH70高强钢进行了焊接性能的理论及实验研究,从工艺角度分析了其可焊性、抗裂性。并根据液压支架的制造要求,制定了合理的焊接规范,选用低强匹配焊丝施焊,对主要结构件进行整体预热,焊后进行回火时效处理,获得了满意的试验效果。成功应用于液压支架的焊接。In this paper,the major is experiment study focused on the high-strength steel WH70 welding performance,analyse its solderability and crack resistance from the view point of welding technology.And have formulated a reasonable welding norms,the experiment selected the low-matching strength wire to performed, warm-up the overall of the main structure, do welding temper aging treatment after wehted, and got the satisfied welding effect.It has been successfully used in hydraulic support of the welding.

关 键 词：贝氏体高强钢 焊接性 焊接工艺 液压支架 

分 类 号：TG457.11[金属学及工艺—焊接]