| 摘要 |
The present invention relates to a non-electrode wire for a tandem electro-gas arc welding on an ultra-thick metal material applied to a ship, and a weld metal joint formed when conducting a tandem electro-gas arc welding using the same. For the same, provided in the present invention is a weld metal part capable of controlling the components of the non-electrode wire used in a situation of a tandem electro-gas arc welding, at the same time, controlling the component composition and microstructure composition of the weld metal joint formed by the tandem electro-gas arc welding, using the non-electrode wire. |
