棒焊接的焊缝气孔被认为是质量差。
Stick Welding Porosity in a weld is considered poor quality.
缺点是在碳钢中有氢致裂纹、铝合金中有焊缝气孔产生的危险。
Disadvantages include risk of hydrogen cracking in carbon steels and weld metal porosity in aluminium alloys.
结果表明，在侧吹保护气体的条件下，激光深熔焊接能有效地避免高强度镀锌钢热影响区的软化和控制焊缝气孔及焊接接头裂纹的产生。
By adopting blowing side protective gas, the problem that gas hole was easy to form owed to evaporation of zinc and moisture of circumstances in laser...
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