| 摘要 |
PURPOSE:To obtain a good bead in accordance with numerous welding postures by fitting two magnets on the bottom face of the main body of a welder and by travlling the main body of a welder with applying a magnetic force to the travelling surface of the material to be welded. CONSTITUTION:At least two magnets 23, 24 are fitted to the back surface of the main body of welder, which is travelled by driving travelling wheels 21, 22 with applying a magnetic force by the magnets 23, 24 thereof under the condition that the prescribed intervals remain for the surface of the material to be welded of a horizontal member 1. The welder is travelled with the tip part thereof pointing always in the direction of a welding line 3 by inclining the direction of three travelling wheels so as to point to the direction of the welding line 3, and a wire 5 is welded always in a proper position. |
