Process Parameters Of Steel Structure - Knowledge
(1)When the sides of the upper and lower columns without ear plates are symmetrically welded to 1/3 of the plate thickness by two welders on both sides,cut off the ear plates.
(1)When the sides of the upper and lower columns without ear plates are symmetrically welded to 1/3 of the plate thickness by two welders on both sides,cut off the ear plates.
(2)Then two welders symmetrically weld on both sides to 1/3 of the plate thickness on the side where the ear plate is cut.
(3)Two welders will be responsible for the welding of two adjacent sides.
(4) The joints of the weld bead between every two layers should be staggered with each other , and the weld bead joints welded by two welders should also pay attention to the stagger of each layer.Pay attention to the temperature between the layers during the welding process.
(5)Welding process parameters of steel structure parts:
CO2 gas shielded welding:wire diameter 1.2mm,current 280~320A,welding speed 350~450mm/min
Extending length of welding wire:about 20mm,gas flow rate 25~80L/min,
Voltage 29~34V,interlayer temperature 120~150C