| 摘要 |
PURPOSE:To improve remarkably slag removability by contg. a specific amt. of CaF2, Al2O3, CaF, MgF2 and or AlF3, Mg and or BaO and contg. (MgF2+Al) and SiO2 under specific conditions. CONSTITUTION:A flux for electroslag build-up welding is composed to contain, by wt%, 30-60 CaF2, 10-30 Al2O3, 5-15 SiO2, <10 CaO, 3-10 MgF2 and or AlF3 and 2-15 MgO and or BaO. The conditions >0.5 (MgF2+AlF3)SiO2 are satisfied. The flux is incorporated therein with 0.01-0.1 (in terms of S) S alone and or S compd. in order to improve further the seizure resistance of slag. |
