| 摘要 |
PURPOSE: An electro gas welding device is provided to improve welding speed by fusing metal powder using extra heat of welding plasma and to improve the quality of products by reducing heat input to base metal. CONSTITUTION: An electro gas welding device comprises a carriage(100) which is moved up and down along a guide rail(70) arranged on one side of base metal(30), a welding torch(200) which is arranged in a welded portion of the base metal and creates arc for welding the base metal, a power supply unit for supplying power to the welding torch, and a metal powder torch(400) which sprays metal powder toward the welded portion from a position close to the welding torch.
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