Anti-corrosion steel pipe refers to the antiseptic technology processing, which can effectively prevent or slow down in the transport and use of chemical or electrochemical reaction occurred in the process of corrosion phenomenon of steel pipe. According to the statistics, every year the domestic steel tube corrosion direct economic loss of more than $2800, the world due to steel corrosion losses as high as $500 billion a year. The anti-corrosion steel pipe can effectively prevent or slow down the corrosion.

High density polyethylene coat anticorrosive structure: package of high-density polyethylene material outside the steel pipe surface, has high mechanical strength and good corrosion resistance, can protect the steel pipe in the process of transportation, installation and use to avoid the damage caused by external factors. Manufacturing outside casing should be adding antioxidants, ultraviolet stabilizer, carbon black and so on. Polyethylene outer casing is easy to aging, such as appropriate is used in open air tarpaulin cover, stacking area should be far away from the high heat and fire, made the anti-corrosion steel pipe, it is prohibited to insolate, quenching, or polyethylene outer casing is easy craze, affect the product performance and service life.

Straight seam steel pipe in addition to embroider method:

1, the spray derusting

Spray derusting is driven by high-power motor jet high-speed rotating blade, steel shot, steel grit, wire section, minerals and other abrasive in motor power under the action of centrifugal force of the straight seam steel pipe surface spray processing, not only can thoroughly remove oxide, rust and dirt, and straight seam steel pipe under the action of abrasive violent impact and friction, also can achieve the required uniform roughness.

2, cleaning

Using solvent, emulsion steel surface cleaning, to remove oil, grease, dirt, lubricants, and similar organic matter, but it cannot remove rust, scale, such as welding flux on the surface of the steel, so only as auxiliary means in the anti government job.

3, tools, cleaning

Main USES steel wire brush tool for steel surfaces such as grinding, can remove loose scale, rust, slag, etc. Hand tools can achieve derusting Sa2 level, power tool cleaning can reach grade Sa3, if solid iron oxide adhered on the surface of the steel, tool cleaning effect is not ideal, anchor pattern depth of anticorrosion construction requirements.

4, pickling

Commonly used chemical and electrolytic pickling process, two methods do use only pipeline anticorrosion chemical pickling, can remove scale, rust, old coating, sometimes can be used as sandblasting derusting after reprocessing. Chemical cleaning while can make the surface reaches a certain cleanness and roughness, but the anchor lines shallow, and easy to damage to the surrounding environment.