Application areas: 3pe 2pe anti-corrosion spiral steel pipe is widely used in peroleum pipeline, chemical pipeline, natural gas pipeline, thermal power, sewage treatment, water, bridges, steel structure, marine piling and other pipeline projects.
Production process: Upload pipes -pipes spiral conveyor →shot blasting rust removal (Surface roughness 35~ 100 u m) →intermediate frequency heating →Epoxy powder coating(first layer>100 micron) →Adhesive coating (second layer 170-250 microns)→polyethylene coating (third laver 1.8-3.7 mm)→water cooling spray→ pipes spiral conveyor →grinding pipes ends →unload pipes→Ouality control, repair of coatina damaae (if necessary)→Marking and storage of insulated pipes.
