GAS SHIELDED ARC WELDING EQUIPMENT OF RAIL

摘要

PURPOSE:To perform the welding of high quality with high efficiency by having the welding chamber to shut off a weld zone from outside air and by welding fully automatically with controlling the welding conditions according to the shape of a rail. CONSTITUTION:The welding of rail bottom part is performed after performing the initial layer welding by one-side URANAMI welding and confirming the prescribed position by the detecting sensor 43' of axis Y position for welding rails 1, 1'. The welding of the rail bottom part is performed with the multilayer welding by gas shielded arc welding by selecting the welding conditions corresponding to welding position by an information processing part and by outputting respective information to each driving control part. The Y axis moving block 4' is ascended according to the progress of weld, which is detected by the axis Y position detecting sensor 43' and the welding height at each time is detected. The welding method of the rail stem part and head part is selected from a memory part by the information processing part. The rail is surrounded by moving the mobile type water cooling side face backing metal inside the welding chamber 2, the welding conditions accorded with the height are selected and the weld of the rail stem part and head part is performed with controlling each driving part.