3 commonly used method for steel tube derusting
Sources: this site Click: Date: 2015-9-11 18:58:40
With the development of society and economy, and the national energy innovation and growth, the modern state is to develop the energy industry, the south to North Water Diversion Project, the west east gas transmission and other large projects have been started.
The research shows that the surface treatment of steel tube has a effect on the life of the coating. Therefore, it should be strictly in accordance with the requirement of the surface of the steel pipe, and constantly explore and sum up the surface treatment method.
1.pickling
General chemical and electrolytic two methods do pickling treatment, anti-corrosion pipeline using only chemical pickling, can remove the oxide scale, rust, coating, sometimes it can be as sand blasting. Although chemical cleaning can make the surface to achieve a certain degree of cleanliness and roughness, but its anchor is shallow, but also easy to pollute the environment.
2.wash
The solvent, emulsion steel surface cleaning, in order to achieve the removal of oil, grease, dust, lubricants, and similar organic matter, but it can't removal steel surface rust, oxide skin, flux etc., so in the production of anti-corrosion only as a supplementary means.
3.(left) shoot derusting spray
Spray (parabolic) to shoot derusting is through the high power motor driven spray (CAST) shot blades to rotate at a high speed, the steel grit, steel shot, wire, minerals and other abrasive under the action of centrifugal force on the surface of the steel pipe spray (left) radiation treatment, not only can completely remove the rust, oxide and dirt, and the steel pipe in the fierce impact of the abrasive and friction, but also to achieve the required uniform roughness.
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