2PE/3PE anticorrosive steel pipe

Epoxy powder internal anticorrosive steel pipe

Specification: Ф89mm-Ф1820mm Wall thickness: 6mm-20mm

Material: Q235B, Q345B, 10# steel, 20# steel, X42-X80 grade

2PE/3PE anticorrosive steel pipe standard: GB/T23257-2017

Epoxy powder internal anticorrosive steel pipe standard: SY/T0442-2010

2PE/3PE external corrosion protection + epoxy powder internal corrosion protection steel pipe

2PE/3PE anti-corrosion structure: electrostatic spraying epoxy powder on the surface of the steel pipe and laterally wound adhesive and laterally wound polyethylene anticorrosive layer, combining the excellent performance of the three, thus significantly improving the overall quality of the anticorrosive pipeline. It is resistant to chemical corrosion, cathodic disbondment and mechanical damage.

Before the base material of 2PE/3PE anticorrosive steel pipe is subjected to anticorrosion treatment, it is necessary to inspect and record the steel pipe entering the pipe inlet platform, perform shot blasting to remove rust on the outer surface of the steel pipe, and then check whether the cleanliness and anchor depth of the outer surface of the steel pipe are consistent Requirements, if it does not meet the requirements, it is qualified by hand-grinding and repairing. Wrap tape on the end of the pipe, treat it with fine dust, heat it to the required temperature at medium frequency, spray epoxy powder, wind on the side of the adhesive extruder, and wind on the side of the PE extruder. Water cooling of the anticorrosive pipes, spray marking of qualified products, and the down-pipe platform and stacking are to be shipped.

The 3PE anticorrosive steel pipe has a wide range of applications, and it is suitable for underground coal mine water supply and drainage, underground spraying, positive and negative pressure ventilation, gas drainage, fire sprinkler and other pipe networks. Process water waste residue and return water conveying pipeline in thermal power plant. It has excellent applicability to the water supply pipeline of anti-sprinkling and sprinkling system. Cable protection sleeves for power, communications, highways, etc. It is suitable for high-rise building water supply, heating network heating, tap water engineering, gas transportation, buried water transportation and other pipelines. Process pipelines for transporting corrosive media in industries such as petroleum pipelines, chemical pharmacy, printing and dyeing industries. Sewage treatment discharge pipes, sewage pipes and biological pond anticorrosion projects. For agricultural irrigation pipes, deep well pipes, drainage pipes and other networks, it can be said that 3PE anticorrosive steel pipes are indispensable in the current construction, and it is believed that through the extension of science and technology, it will have more brilliant achievements in the future.

Fused epoxy powder outer coating (FBE/2FBE) is a new type of anti-corrosion coating developed in the past 30 years. FBE coating has two types: single layer and double layer. The so-called FBE coating generally refers to a single-layer fusion bonded epoxy coating. The single-layer FBE coating uses special fusion bonded epoxy powder coating as the film-forming material. The epoxy powder coating is applied by electrostatic spraying process to form a film at one time. This epoxy powder coating is a thermosetting coating, which is processed by mixing and pulverizing solid epoxy resin, curing agent and various additives. The steel pipe is shot blasted and preheated at intermediate frequency before painting, and then the epoxy powder coating is sprayed on the surface of the heated steel pipe by electrostatic spraying method, and it is melted and bonded to the surface of the steel pipe to solidify to form a coating. FBE coating is generally a one-time film formation structure. FBE coating has strong adhesion to steel, good film integrity, resistance to cathodic stripping, soil stress and abrasion resistance, simple coating operation, no pollution, good impact and bending resistance of the coating, high temperature resistance, etc. The advantages have been widely used abroad. FBE coating can be used for the external anti-corrosion of steel buried pipelines or underwater pipeline facilities whose working temperature is -30~100 degrees Celsius.