No spalled paint exists at the plug weld and for a short distance each side of the plug welds. 在塞焊焊缝处及塞焊周围距离内无细漆碎屑存在。
Plug weld the outer side member in area using inert gas. 使用惰性气体在区域中对外侧梁进行塞焊。
The examination indicated that the sheave had been failed by plug weld fracture, which was attributed to poor weld quality. 结果表明,绳轮发生分离是由塞焊金属断裂引起的,而其断裂的原因则是焊接质量不良。