Surface,treatment,SSAW,Surface technology Surface treatment of SSAW
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Surface treatment of SSAW Steel pipe:1, cleanUsed solvent, emulsion clean steel appearance, to get to remove oil, grease, dust, smooth agent and similar organic matter, but it means less steel appearance of rust, scale removal, welding flux, etc., thus the tricks only as adjuvant in corrosion produced.2, what derustingPrimary use steel wire brush, etc was carried out on the steel surface grinding, can remove loose or cock scale, rust, slag, etc. Open hand tools derusting to Sa2 level, dynamic things rust removal can be reached level Sa3, if sheet steel surface adhesion strong oxidation, cleaning result ignored wants, anchor pattern depth of anticorrosion construction requirements.3, picklingCommon with chemical and electrolytic pickling treatment of two different ways to do, use only pipeline anticorrosion chemical pickling, can remove scale, rust, old coating, sometimes can be used as remarketing after sandblasting derusting. Chemical cleaning is can make the appearance to the inevitable and coarse degree of cleanliness, but its anchor lines shallow, and easy to form pollution situation.4, shot derusting spray (left)Spray shot derusting (cast) is a high power motor drive spray (cast) blade high-speed twist, make steel shot, steel grit, wire section, minerals and other abrasive under the centrifugal force effect on steel tube appearance spray (cast) disposal, not only can completely eliminate rust, oxides and dirt, and the effect of steel tube in the fierce impact and friction abrasive, can reach the requirements of coarse degree on average.Spray (cast) shot after cleaning, not only can expand the pipe appearance physical adsorption effect, and can strengthen anticorrosive coating with a tube appearance mechanical adhesion effect. Therefore, shot derusting spray (cast) is the illusion of pipeline corrosion rust removal method. In general, shot peening disposal (sand) first used in the pipe derusting appearance, blasting (sand) first used in the pipe surface derusting surface treatment.
Surface,treatment,SSAW,Surface