Spiral Welded Pipe’s Anti-corrosion Technology
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Spiral Welded Pipe’s Anti-corrosion Technology

Date:2017-06-13      View(s):558      Tag:anti-corrosion technology, spiral welded pipe, ssaw steel pipe
As the individual quality of the spiral welded pipe is relatively large, it must be stacked outdoors, but it is difficult to avoid being sun and rain, so the problem of rust has been plagued by spiral pipe storage time and conditions. So we need to carry out a comprehensive solution to the knowledge of rust protection of SSAW steel pipe.


Prime Steel Pipe mainly use steel wire brush and other tools to polish the surface of steel, the cleaning and preheating of spiral welded pipe can remove loose or tilt of the oxide, rust, welding slag and so on. Manual tool derusting can reach Sa2 level, power tools rust can reach Sa3 level, if the steel surface attached to a solid iron oxide skin, tool rust effect is not ideal, not up to the requirements of anti-corrosion construction of the depth of the anchor.


Pickling with solvent and emulsion to clean the surface of welded steel pipe (welded pipe) for low pressure fluid delivery to remove oil, grease, dust, lubricant and similar organic matter, but it can not remove rust, scale, So in the anti-corrosion production only as an auxiliary means.


General use of chemical and electrolytic two methods to do pickling treatment, pipeline corrosion only chemical pickling, you can remove the oxide, rust, the old coating, and sometimes can be used as a blasting after the re-treatment. Chemical cleaning, although the surface can achieve a certain degree of cleanliness and roughness, but the anchor is shallow, and easy to cause welding environment pollution to spiral welded pipe.


Reasonable using the means to clean the rust pipe can ensure that the pipe for a long time to serve the production and create more production efficiency.

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