ERW steel pipe surface treatment method

 1.    Cleaning of ERW steel pipe The steel surface is cleaned with solvent and emulsion to remove oil, grease, dust, lubricant and similar organic matter, but it cannot remove oxide scale, rust on steel surface, flux, etc., and can only be used as anti-corrosion production auxiliary means.

 

2.    If the steel surface is firmly attached to the iron oxide scale, the rust removal effect is not ideal and cannot meet the requirements of the anti-corrosion construction for the depth of the anchoring particles. ERW steel pipe rust removal tools mainly use wire brushes and other tools to grind the steel surface, manual rust removal can reach SA2 level, power tool rust removal can reach SA3 level, can remove loose or raised oxide scale, rust, welding slag Wait.

 

3.    The pickling of ERW steel pipe is generally treated by chemical and electrolytic methods, which can be used as a re-treatment after sandblasting and rust removal. Although chemical cleaning can make the surface clean and rough to a certain extent, its anchoring particles are relatively shallow. It is easy to cause pollution to the environment, and the pipeline anti-corrosion can only be treated with chemical pickling, which can remove oxide scale, rust and old coatings.

 

Changsha Xiangjia Metal Materical Co., Ltd. the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.