| 摘要 |
PURPOSE:To excellently weld in a production of a vessel to weld by butting a bottom member and a drum member. CONSTITUTION:In a jig 11 which fits a bottom member 3 and a drum member 4 by making them in a butting state, a heat transfer member 14 with a large thermal conductivity is installed at a part facing the butting parts 5, 6. The butting parts 5, 6 are heated with a welding burner 21 and welded. Therefore, because the temperature distribution of the butting parts 5, 6 in a welding time can be uniformly made, welding can be excellently executed. |
