Electrostatic spraying epoxy powder anti-corrosion steel pipe

epoxy powder anti-corrosion coated steel pipe is made of spiral steel pipe fusion-bonded epoxy powder outer coating (fbe/2fbe) 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 a special fusion-bonded epoxy powder coating as the film-forming material. epoxy powder coating is applied by the electrostatic spraying process to form a film once. this epoxy powder coating is a kind of thermosetting coating, which is processed by mixing and pulverizing solid epoxy resin, curing agent, and various additives. the steel pipe is subjected to shot blasting treatment and intermediate frequency preheating before painting, and then electrostatic spraying method is used to spray epoxy powder coating on the heated steel pipe surface, melt and bond on the steel pipe surface, and solidify to form a coating. fbe coating is generally a film-forming structure.

fbe coating has strong adhesion to steel, good film integrity, cathodic disbonding resistance, soil stress resistance and wear resistance, simple coating operation, no pollution, good impact resistance and bending resistance of the coating, high-temperature resistance, etc. advantages, it has been widely used abroad. fbe coating can be used for external anti-corrosion of steel-buried pipelines or underwater pipeline facilities with a working temperature of -30~100 degrees celsius common standards: sy/t0315-2005, qcnpc 38-2002, qsy-xq9-2003 and other standards

powder coating is a solvent-free 100% solid powder coating, which has the characteristics of no solvent, no pollution, saving energy and resources, reducing labor intensity, and high mechanical strength of the coating film. they are stable in storage at room temperature. after electrostatic spraying, friction spraying (thermosetting method), or fluidized bed dipping (thermoplastic method), they are heated and baked to melt and solidify to form a flat and bright permanent coating film to achieve decorative properties. and anti-corrosion purposes.