| 摘要 |
PURPOSE:To obtain the weld metal having high toughness without weld defects in welding in all positions, by using a titled wire obtd. by specifying the component compsn. of a granular flux to be packed in a steel sleeve. CONSTITUTION:This flux cored wire for self-shielded arc welding is produced by packing a granular flux contg. the following components as essential components in a steel sleeve at 15-30wt% based on the total weight of the wire: The wire contains, by weight %, 32-70% BaF2, 1-30% fluoride of alkali metals, 1-30% composite oxide of oxides of alkaline earth metals selected from Ca, Sr and Ba and oxides of metals selected from Fe, Mn, Ni, Co, Ti, Al, Zr, 3-12% Al, 2- 10% Mg, and 0.5-10% Mn. |
