3PE 3lpe Steel Pipe Anticorrosion Layer Application Coating Line

3PE 3lpe Steel Pipe Anticorrosion Layer Application Coating Line

Description
The coating manufacturing process consists of the following operations:
The surface blast cleaning to Sa 2 1/2 acc.To ISO 8501-1,
The electrostatic spraying of epoxy powder onto a heated pipe,
Wrapping a pipe with extruded copolymer,
Wrapping a pipe with polyethylene/polyetylene in continuous way,
Cooling the coating and dressing the pipe ends.

An extruded polyethylene coating has higher mechanical properties in comparison with cold applied polyethylene tape coating.Anti-corrosive coatings made of three-layer PE/PP are characterized by:
High mechanical strength,high adherence of the coating to the pipe,guaranteed long lastinganticorrosiveprotectionofundergroundpipelines for minimum 50 years,100% protection of weld zone of coated longitudinally and spirally welded pipes,suitability for bending of coated steel without damaging the insulation layer.

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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