In orere to discuss the action mechanism of the fluxes,the microstructure of the joint and residue after welding are analyzed with metallographic microscope and XRD.

• 通过金相显微镜、X射线衍射等分析方法对焊接接头组织及焊后残渣采样进行分析,并对焊剂的作用机理进行了初步研究。