方管焊接时会因为不同的原因而出现不同的问题，需要一一对应问题找原因，然后做好处理工作，这样才能预防下次在此出现该问题。如何方管焊接时出现弧坑及焊缝问题怎么去处理呢？

　　There will be different problems in square pipe welding for different reasons. It is necessary to find out the causes of the problems one by one, and then do a good job in dealing with them, so as to prevent the problem next time. How to square pipe welding arc pit and weld problems how to deal with it?

　　弧坑：焊接电流过大，焊缝间隙过大，填充金属量不足。应该正确选择焊接电流和焊接速度，控制焊缝间隙均匀，适当加快填充金属的添加速度。先清理弧坑及其周围，再进行焊补。若弧坑内有气孔，应排除夹渣或裂纹。

　　Arc pit: welding current is too large, weld gap is too large, filling metal quantity is insufficient. The welding current and welding speed should be selected correctly, the weld gap should be controlled evenly, and the adding speed of filling metal should be appropriately accelerated. The arc pit and its surroundings should be cleaned before welding repair. If there are pores in the arc pit, slag or crack should be excluded;

　　焊缝表面形状和尺寸偏差：坡口角度不当、装配间隙不均匀、焊接规格选择不当、焊接电流过大或过小、焊接速度不均、带材输送方式不正确、焊条或焊丝过热等。选择正确的焊接规格、合适的焊条及其直径，调整装配间隙，均匀输送焊条，避免焊条和焊丝过热。可根据缺陷采用碳弧气刨和批凿修正，并用砂轮磨平。焊缝过窄或过低时，应进行焊接修补。

　　Deviation of weld surface shape and size: improper groove Angle, uneven assembly clearance, improper selection of welding specifications, welding current is too large or too small, uneven welding speed, incorrect conveyor mode of strip, overheating of electrode or wire, etc. Choose the correct welding specification, appropriate welding rod and its diameter, adjust the assembly gap, evenly transport welding rod, avoid overheating of welding rod and wire. The defects can be corrected by carbon arc gouging and batch gouging, and polished with grinding wheel. When the weld is too narrow or too low, it should be repaired by welding.

　　如果想要预防后续在此出现问题的话，就要在济南方管焊接时做好相应的工作才是，比如焊接方管如有破损，应进行抛光处理，尤其是与碳钢件接触造成的划痕、飞溅，切渣造成的破损，须仔细彻底清理；焊管方管的酸洗钝化有必要严厉按工艺要求进行钝化；焊管方管外表处理完毕后，应做好防护，防止人员抚摸和油污、尘埃等杂物的二次污染。等等。

　　If you want to prevent the follow-up problems in this, it is necessary to do the corresponding work in welding, such as welding square pipe if there is damage, should be polished, especially with carbon steel contact caused by scratches, splashes, cutting slag damage, must be carefully and thoroughly clean; Pickling passivation of welded tube square tube is necessary to be passivation strictly according to the process requirements; After the surface treatment of welded pipe square pipe, should do a good job of protection, to prevent people touching and oil, dust and other sundry secondary pollution. And so on.

　　总之，焊接前的检查工作必不可少，检查方管的质量材质如何，检查焊接设备怎么样、是否会出现问题、是否有异常前兆等等。如何处理方管焊接时出现弧坑及焊缝问题？便是以上内容了，了解更多就来网站www.jnhxtcg.com咨询！

　　In short, the inspection work before welding is essential, check the quality and material of the square tube, check the welding equipment, whether there will be problems, whether there are abnormal precursor and so on. How to deal with the arc pit and weld problems in square pipe welding? Is the above content, know more to consult the website!