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焊接材料 回回回回回回口回回回回回回回回回母材:16 Mn WW焊材:J507焊条 回回回回口回口回旧髓圃辎圈回回回焊接方法 手工电弧焊 回回回回回回口口回回口回回回 h)焊缝中裂纹 3 5 x(2/3)e一 ()上图裂纹整体放大 375 X(2/3)(。)上图裂纹尖端放大 113 X(2/3) 图1 焊缝中的裂纹一
Welding Material Return Return Return Return Return Return Return Return Return to the base metal: 16 Mn WW Welding consumables: J507 Welding rod back to the mouth Back to the old Nursery Back to the back welding method Manual arc welding back back back back back back back back back back back h ) Cracks in welds 3 5 x (2/3) e A () Upper crack overall 375 X (2/3) (.) Upper crack tip Enlargement 113 X (2/3) Figure 1 Crack one