Spiral Welded Pipe Pickling-Pipe Anti-Corrosion Treatment

Spiral welded pipe pickling is to further remove oil on steel pipe surface, and by using weak phosphate solution (acid concentration 10% ~ 75%) to clean steel tube surface, so to reach to purpose of chloride content on the surface of the welded pipe is lower than 2 mu g/cm2, in the spiral of anti-corrosion steel pipe surface chemical and electrochemical reaction at the same time, in this process, phosphate chemical conversion coating formatted. The main effect of conversion film is: provide matrix metal protection, to some extent, prevent metal corrosion; Improve the corrosion resistant ability of coating; Strengthen the binding force between the coating and artifacts. Pickling is a kind of effective method in spiral welded pipe 3 PE anticorrosive, improve the corrosion resistance and stripping resistance coating layer. Spiral welded pipe factory in the same production process, all first external anti-corrosion, inner anti-corrosion after. Workshop layout is always reasonable, the internal and external anti-corrosion workshop is closely linked, to reduce the lifting or any extra movement, and the workshop space is larger, the external anticorrosion technology adopts double shot blasting, pickling, chromate treatment and separate the leakage detection process, but there is no strict inner anti-corrosion production process.

Spiral welded pipe pickling is one of many useful steel pipe anti-corrosion treatments, your trust in Ourway international is always a wonderful decision, contact us now for more product and service details.