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.

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.

About the use of anti-corrosion steel pipe top place, underground coal used in coal mine drainage, shotcrete, positive negative pressure ventilation, drainage, gas, such as fire sprinkler pipe network. Power plant, thermal power plant process water slag, backwater walks. Walked oil, oil pipelines, chemical pharmaceutical, printing and dyeing industries walks the process piping of corrosive medium. Sewage disposal, sewage discharge pipe, sewage pipe and biological pond anti-corrosion engineering. Agriculture, agriculture irrigation pipe, deep well pipe and drainage pipe network. Fire, about the sprinkler, sprinkler system water supply pipe has outstanding usability. Highway, electric power, communication, highway cable casing maintenance, etc. Municipal engineering, used in high-rise building water supply, heat supply network heating, water engineering, gas walks, buried water pipe, etc.