Effect of Submerged Arc Welding Flux Component on Softening Temperature

Based on simplex algorithm of optimal design, the multicomponent mixture regression model was used to investigate physical properties of submerged arc welding flux. The effect of complex interaction of seven components in agglomerated flux on softening temperature was analyzed. The results indicate that the interaction of MgO-TiO2-CaCO3-Al2O3 increases the softening temperature of flux, but the additions of CaF2 and ZrO2 can decrease the softening temperature.