The welding method used was a PC-GMAW process with mixture gases shielding. Central crack for the welded plate was located in the fusion zone between welding seam and heat-affected zone.
焊接方法为脉冲熔化极混合气体保护焊，焊接板的中心裂纹处于焊缝与热影响区之间的熔合区。
At last, the fatigue crack in the experiment and the main influential factor of fatigue strength of fillet welding seam was studied.
最后，对疲劳试验中有关裂纹以及影响焊缝疲劳强度的主要原因进行了探讨。
The paper briefly analyses the main cause of crack of welding seam on an evaporation tank and proposes the precautionary measures for preventing such kind of accident on pressure vessels.
简要分析了一台蒸发罐发生焊缝开裂的主要原因，提出防止此类压力容器事故的预防措施。
应用推荐