3lpe Polyethylene Steel Pipe Anticorrosion Coating Processing Line

Description

The epoxy powder is a kind of thermosetting nontoxic coating, forming the high molecular weight cross-linking structure coating after solidifying, featuring good chemical anticorrosion and higher mechanical properties.The function of epoxy-powder bottom layer is to form continuous coating, providing excellent adhesion by agglutinating and solidifying the steel tube surface with good chemical resistance and cathodic disbanding resistance.The function of polymer adhesive is to agglutinate the epoxy powder before gelation, and to agglutinate the polyethylene top layer, which unites all three layers together.The three-layer PE process, with the epoxy powder coating as bottom layer, binding and bundling through polyethylene PE and adhesive, is widely used in anticorrosion of steel pipes at home and abroad, and applied to the oil pipeline and gas pipeline, as well as to the gas supply and water supply for civil use.

Note:For the diameters over 1420 mm "FERRUM" S.A.Can make coating by polyethylene tapes acc.To DIN 30672 class B30, C30 and C50.

N-n, N-v coating with low density polyethylene (LDPE) or medium density polyethylene (MDPE) with regular n and reinforced v thickness
S-n, S-v coating with high density polyethylene (HDPE) with regular n and reinforced v thickness

Anticorrosive coating 3LPE/ 3LPP according to PN-EN ISO 21809-1 is composed of:
Epoxy layer of minimum 125 μM thickness,
Copolymer layer of minimum 150 μM thickness,
Polyethylene or polypropylene layer from 1,8 mm to 4,7 mm.

Technological processes
Upload pipes→pipes screw conveyor→rust removal of intermediate frequency heating→Epoxy powder coating→outer layer soli quid & polyethylene coating→cooling spray→pipes screw conveyor→grinding pipes, send→unload pipes

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