摘要
首次将振动调制工艺应用到常规电渣焊中。在焊缝位置分别施加振动加速度为 0、0 3g和 0 6g三种振动参数 ,试验发现振动调制工艺可以大幅度提高高炉厚板电渣焊焊接接头的侧弯性能 ,0 6g加速度时试样侧弯性能合格率达到 1 0 0 %。同时该工艺能明显地细化焊缝和热影响区组织 ,随着振动加速度的增加 ,晶粒细化的效果更明显 。
Vibratory conditioning technology (VCT) was used in the routine electro-slag welding (ESW) for the first time. Three kinds of vibration accelerations: 0.3 g and 0.6 g were exerted on the weld position respectively. The test results show VCT can improve the side bend properties of weld joint of the steel used for blast furnace greatly. The qualification rate of 0.6 g reached 100%. From metallograph, VCT can refine the grain effectively. The effect of grain refinement is more obvious as the acceleration of vibration is increasing. The grain refinement is one of the basic reasons for the improvement of bend property.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2004年第22期2051-2054,共4页
China Mechanical Engineering
关键词
振动调制工艺
晶粒细化
电渣焊
侧弯性能
焊接接头
vibratory conditioning technology
grain refinement
electro-slag weld
bend property
welded joint
