| 摘要 |
PURPOSE:To produce inexpensively clad steel by charging with good quality by charging molten base steel by a bottom charging method to the boundary between a cladding metal mounted on the inside wall of a casting mold and the molten base steel while scattering welding arcs. CONSTITUTION:A cladding metal 7 is mounted on the wall of a casting mold 1 provided on a molding board 2 for bottom charging, and molten steel 8 is charged through a charging pipe 4 into the mold by a bottom charging method. A welding torch 5 is mounted with a shaft 6-4 to the forward end part of a torch mounting base 6-3 of a torch mounting device 6 in the mold 1, and is connected with a TIG electrode 5-1 to a welding machine 5-3. On the other hand, the metal 7 is connected with a conductor 5-2 for conduction of electricity to the machine 5-3. While welding arcs are scattered with continuous weaving on the rising line of the metal 7 and the steel 8, with such constitution, the molten steel is charged, whereby the oxide, etc. formed on the metal 7 are removed, and the welding between the metal 7 and the steel 8 by fusion is improved. |
