| 摘要 |
PURPOSE:To obtain a clean weld metal having no internal defect such as slag inclusion, blowholes, etc. by incorporating a prescribed ratio of CaF2, BaF2, NaF, AlF3, MgF2, CaCO3, MgCO3, etc. in a flux. CONSTITUTION:A titled flux consists of 20-80%, >=1 kind among CaF2, BaF2, NaF, AlF3 and MgF2, 1-7% (in terms of CO2) metallic carbonate such as CaCO3, MgCO3 or the like, 0.5-5% Al<=1.5% K2O and a binder, etc. A clean weld metal having no internal defects such as slag inclusion and blow holes, etc. is obtd. by such flux. |
