Analysis of the Cause of SSAW Steel Pipe with Porosity

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One of the ssaw steel pipe welding requirements is density, so as to not appear in an accident when using spiral pipe welding. Encounter some situations when manufacturing pipe, such as porosity, when the pipe welds were manufactured there will be holes, like when making use of pipe welds in which the existence of pores, it will affect the pipe compactness, the pipe that leaks in heavy losses. As well as in the use of welded pipe weld but also because of the time among the pores and cause corrosion, reduce the pipe usage time. Among the most common reasons leading to the spiral steel pipe weld porosity occur are: water flux were there, or some dirt, etc., during the time of welding the existence of these things will make the vent pipe appears. When carrying out welding and choose considerable flux ingredient, when performing welding reaction occurs, thereby making welding does not occur when hydrogen holes. When carrying out welding, the thickness of the solder accumulation should be between twenty-five to forty-five, as well as during the time of use should be noted that the particle flux of large and small bulk density during the time should be taken max, if on the contrary, it should take the minimum. In the summer or relatively moderate weather which hit may be flux recovery after drying, during use after drying. Pores on the surface to prevent the emergence of spiral steel pipe, should be treated on the surface of the steel sheet, when performing welding steel plate should be above all the dirty things to clean out, to avoid carrying out welding occur when other substances into the welded tube them, causing pores.
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