| 摘要 |
PURPOSE:To obtain weld metal having excellent weld cracking resistance by combining wire with flux of specified compositions. CONSTITUTION:Welding wire contains 60-88wt% Ni, 10-38wt% Mo and 0.10- 2.0wt% Al, and its Si content is limited to 0.15wt% or below and its Cr content to 5.0wt% or below. Welding flux contains 30-70wt% CaF2, 8-30wt% CaO and/or MgO, 5-35wt% Al2O3 and 0.5-7wt% Al. Further its SiO2 content is limited to 8wt% or below and its Si content is virtually nil. Welding is performed by combining said welding wire with flux. |
