在焊接处看到了夹渣，气孔及未熔透区的油漆。
Slag, blowholes, and paint on unfused regions were observed at the welded junctions.
实验结果显示，采用逆变焊机进行焊接，焊点的平均强度有所提高，飞溅率和未焊合率均有大幅度降低。
The experiment shows that by using inverter spot welding, the average intensity of the welded spot is increased while the splash rate and the incomplete penetration rate are descend.
未熔合的防止采用较大的焊接电流，正确地进行施焊操作，注意坡口部位的清洁。
C,. Incomplete fusion prevent adopting greater welding current, use correctly to weld the cleaning of operating, notice groove position.
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