PLC-Controlled 3LPE Coating Production Line for Pipes (50-4200mm) with SA2.5 Grade Surface Treatment

The production line is mainly composed of extruder,diemould,foaming machine,transmission line,deviation correcting machine and so on.It is mainly used for the continuous production of thermal preinsulated pipes with a diameter of 48~630mm.Compared with the two-step production process,it has the advantages of high production efficiency,low cost,energy saving,and no pollution to the environment.

The three-layer PE anticorrosion structure includes fusion bonded epoxy-powder bottom layer, polymer adhesive middle layer and polyethylene top layer.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 PEprocess,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.

Advantages of HDPE Pipe Extrusion Line:
HDPE pressure Pipe Extrusion Line is a pipe extrusion line developed by HSD company through assimilate and master technology introduced from abroad.It is applicable for extrusion of PE,PP,PB,PERT,ABS etc.This PE pipe production line can instead extrusion line imported from abroad. This pipe extrusion line mainly includes single screw extruder,molds, vacuum calibrating water tank,spray water cooling tank,haul-off machine, cutting machine and bracket.
Plastic Pipes produced by this line have excellent stiffness,flexibility,high mechanical strength,resistance of environmental stress cracks,resistance to creep deformation,heat-linkage and so on.It has become the first choice for the city gas pipe,water supply pipe,foundation pipe,landfill collection pipe,watermain,geothermal heating etc.