SM50BN钢60/100mm板厚组合角接手工电弧焊焊接工艺的探讨  

SMAW PROCEDURE FOR FILLET JOINT OF 60/100MM SM59BN STEEL PLATE

作　　者：刘恩国 

机构地区：[1]铁道部山海关桥梁工厂

出　　处：《焊接》1995年第4期20-24,共5页Welding & Joining

摘　　要：通过对日本SM50BN钢60/100mm板厚组合角接手工电弧焊工艺的试验研究,表明坚板开坡口多层焊时.最初几道,特别是第一道焊缝的焊接工艺至关重要.提出了竖板两侧开对称半U形坡口,采用J507焊条,在竖板两侧同时、同向、预热施焊的条件下,可以消除焊缝根部裂纹.Experimental study for combined fillet joint of 60/ 100mm SM50BN steel thick plate using SMAW process is carried out. The results indicate that the key point is procedure parameters for root pass and first several layers within the groove of vertical plate. As using double U groove, J 507 electrode, preheating treatment, and welding at the same time on both sides and same direction, the cracking in the root of fillet weld can be eliminated.

关 键 词：电弧焊 角接 手工焊 钢结构 冷裂纹 

分 类 号：TG457.5[金属学及工艺—焊接] TG444.1