钢结构安装时典形节点的焊接顺序和工艺参数发布时间：2015-8-27 11:01:04 浏览次数:1190
1, each between two layers of weld joint should be staggered, two welder welding the weld joint of also should pay attention to each layer stagger, should pay attention to during the process of welding interlayer temperature detection.
2, up and down the column without the ear plate side by two welder in bilateral symmetry welded to the thickness of a third place, cut off the ear plate.
3, again by two welder welding bear adjacent sides.
4, the welding process parameters:
5, then cut in the ear plate side by two welder in bilateral symmetry welded to the thickness of a third place.
CO2 gas shielded welding, welding wire diameter 1.2 mm Φ, current 280 ~ 320 a, the welding speed is 350 ~ 450 mm/min
Length of wire sticking out: about 20 mm, gas flow rate 25 ~ 80 l/min,
Voltage 29 ~ 34 v, interpass temperature 120 ~ 150 ℃