It was systematically studied that Na2SiF6 and fluorite influence on the welding arc stability, welding spattering, slag detachability and the appearance of weld beads and the size of droplet.

• 系统研究了氟硅酸钠、萤石对碱性药芯焊丝的焊接电弧稳定性、焊接飞溅、焊缝金属的脱渣性和熔滴大小的影响。