Welding process of supporting end cover plate of large equipment
A large-scale equipment and welding process technology, applied in welding equipment, arc welding equipment, metal processing equipment, etc., can solve problems such as damage, cracked welds, weld corrosion, etc., achieve broad application prospects, short residence time, prevent The effect of intergranular corrosion
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[0029] The present invention proposes a welding process for supporting end cover plates of large-scale equipment, comprising the following steps:
[0030] S1. Grinding step before welding, check the welding equipment and welding positioner, and grind the cover plate and cover plate flange components to be welded. The scope of grinding the cover plate and cover plate flange components to be welded is the area to be welded on the cover plate and cover plate flange components and the 20mm area around the position to be welded.
[0031] S2. The pre-welding step is to combine the cover plate and the flange components of the cover plate, and pre-weld the joint position.
[0032] The specific operation steps are: connect the cover plate and the flange components of the cover plate without gaps, and weld the joint position. During the welding process, the welding current is 210A~230A, the welding voltage is 11V~15V, and the length of the weld bead is 10mm~25mm, the spacing is 100mm~2...
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