CAJ | 학술논문

通过测定6种焊缝中的氮、氧含量，研究了氧对焊缝金属吸氮量的影响，发现液态金属在低氧(［O］＜0．02％)和高氧（［O］＞0．03％）条件下不同的吸氮机制，并且提出通过调整药芯成分，将焊缝氧含量控制在0．02％～0．03％范围内，可使焊缝吸氮量最低．
통과측정6충한봉중적담、양함량，연구료양대한봉금속흡담량적영향，발현액태금속재저양(［O］＜0．02％)화고양（［O］＞0．03％）조건하불동적흡담궤제，병차제출통과조정약심성분，장한봉양함량공제재0．02％～0．03％범위내，가사한봉흡담량최저．
By measuring the content of oxygen and nitrogen in welds of six kinds of self-shielded flux-cored wires,the effect of oxygen on nitrogen content in weld is studied and the different absorptive mechanisms of nitrogen at a low oxygen level（［O］ lower than 0.02%) and a high oxygen level （［O］ higher than 0.03%) have been disco ve red.The results indicate that the content of nitrogen in weld can be made lowest by modifying the composition of flux and controlling the content of oxygen to the range of 0.02%～0．03％．