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Stainless steel flange welding aspect skills

Release time：

2023-02-15

　　Stainless steel flanges are widely used, in oil, water and gas pipelines are used, and most of them still have a certain pressure. So, what are the skills in stainless steel flange welding under

　　Face to understand it! About to weld the stainless steel bellows and flange pipe on the oil and other dirt to clean up. If the welding is cracked and leakage, the original welding scar should be sorted out, flange pipe straight pipe at the grinding out of the metallic luster, bellows straight pipe because it is too thin, can not grind, grinding finishing, the use of hand emery cloth sanding bright on the line.

　　Stainless steel flange welding installation gap of 0, because of processing and production errors sometimes the gap is too large, welding melt easy to burn through, the method of treatment can be in the flange tube straight pipe to stack local stacking welding layer, by machine processing to 0 ~ 0.05mm gap or hand repair grinding. If the set does not go up, should turn small or grinding small flange tube straight pipe outside diameter, until the appropriate stop.

　　Stainless steel flange welding arc must be carried out on the flange tube, the arc should refer to the thick tube, use the arc outer flame to heat the bellows and block the edge of the bellows with welding wire to melt the bellows with molten stainless steel wire.

　　When welding the shipping bar must be carried out on the thick tube, choose short welding seam welding or spot welding for welding. Stainless steel flange welding time to observe the bellows melting condition, generally melting 1 to 3 pools at a time, should not be welded one after another, especially in the larger gap is very simple to burn through, stainless steel flange arc welding skills is the arc can not directly point to the bellows, and the arc residual heat melting bellows for welding. Stainless steel flange welding to pay attention to these matters.

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