层状撕裂的预防  

Avoidance of lamella tear

作　　者：吕同辉[1] LV Tonghui(Harbin Welding Training Institute,Harbin 150046,China)

机构地区：[1]哈尔滨焊接技术培训中心,黑龙江哈尔滨150046

出　　处：《电焊机》2018年第8期121-124,共4页Electric Welding Machine

摘　　要：层状撕裂是厚板焊接结构生产制造中常见的问题,其产生原因主要是在类似T型焊接接头中,由于轧制的厚板材在厚度方向性能不佳以及焊接残余应力垂直作用在板材表面而引起的。结合EN1993-1-10,从焊接结构的设计选材开始,综合考虑材料性能、接头形式和焊接工艺措施各方面因素,选择合适的厚度方向性能钢板以解决此问题。Lamellar tearing is a common problem of thick plate welding structure of production,the mainly reason is the poor performance of rolling thick plate thickness direction,and the welding residual stress for vertical plate surface in similar T type welding joint. In combination with EN1993-1-10,starting from the design and selection of welded structures,the factors of material properties,joint forms and welding process measures are considered comprehensively,and choose suitable steel plate with thicknesscharacteristic to solve the problem.

关 键 词：层状撕裂 残余应力 厚度方向性能钢板 

分 类 号：TG405[金属学及工艺—焊接]