| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for the electroslag welding of a diaphragm in a box section column which is capable of shortening the welding time as well as attaining a reduction in cost by cutting the consumption of welding rods, enhances toughness of a welded part and reduces welding distortion by restraining an increase of a heat input at the welded part, and can enhance product quality. SOLUTION: In the method of the electroslag welding of the diaphragm in the box section column, a welding wire 8 is fused and welded with a skin plate 2 and the diaphragm 1. A bevel is provided between the side face of either one of the skin plate 2 or the diaphragm 1 and the end face of the other facing the side face of the one, and both sides of the bevel are enclosed with a backing board 4. Molten slag 7 is made to intervene in the bevel, and the welding wire 8 is put into the molten slag 7 and is electrified. The welding wire 8 is continuously supplied into the molten slag 7 and moved upward. The sectional form of the end face of the other is made sharply pointed. COPYRIGHT: (C)2004,JPO
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