| 摘要 |
PURPOSE:To obtain a carbon dioxide gas arc welding wire which improves an arc stability, scarcely generates a spatter, and can improve a welding quality by buildup-welding a steel containing oxygen of a specified quantity to a wire material, and drawing it. CONSTITUTION:On the surface of a billet of a wire material, steel containing <=0.03-0.075wt% oxygen quantity is buildup-welded to the outside periphery of at least its one part, extending over the overall length. The material which has formed this padding layer is drawn in accordance with a conventional method. By this method, an arc welding wire on which a surface covering layer of a high oxygen content has been formed is formed. According to this wire, an arc stability in case of carbon dioxide gas arc welding is improved, a reduction of a spatter is attained, and labor and a sense of fatigue of a worker can be reduced. |
