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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:1123


1、每两层之间焊道的接头应相互错开,两名焊工焊接的焊道接头也要注意每层错开,焊接过程中要注意检测层间温度。


2、上下柱无耳板侧由两名焊工在两侧对称焊至板厚的1/3处时,切去耳板。


3、再由两名焊工分别承担相邻两面的焊接。


4、焊接工艺参数:


5、然后在切去耳板侧由两名焊工在两侧对称焊至板厚的1/3处。


CO2气保焊:焊丝直径Φ1.2mm,电流280~320A,焊速350~450mm/min
焊丝伸出长度:约20mm,气体流量25~80L/min,

电压29~34V,层间温度120~150℃



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 ℃


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