Description of 3PE Anticorrosion Steel Pipe Production Line:

Introduction of 3PE Anticorrosion Steel Pipe Extrusion Machine:
3PE Steel Pipe anti-corrosion Production Line includes as following process flowing:
Steel tube inspection--Steel tube surface skim-- Steel tube intermediate frequency preheating Peen-forming degusting --Internal and external dust sweep-- Degusting check --Dust processing→Medium frequency induction heating-- Epoxy powder coating-- AD adhesive coating --PE coating --Inspection. 3PE Anti-corrosion steel pipe is widely used in oil pipelines, natural gas pipeline, heating pipe, water supply pipe.Characteristics of 3PE anticorrosive steel tube:

1) polyethylene anticorrosion properties is admirable, but tolerance in the natural environment of the existence of the various corrosion;
2) high quality and price ratio;
3) polyethylene insulating performance is wonderful, and in dry conditions and long-term immersion electrical performance under the condition of basic unchanged,can effectively prevent the stray current corrosion caused by electrochemical;
4) microbial corrosion resistance and deep roots plant thorn ability, won't happen plant roots through phenomenon;
5) high strength, can be directly with contain more than Φ 25 mm in diameter of the artificial pieces of gravel soils and not cause any damage to backfill;
6) coated tubes overall flexural ability, generally allow cold bending 1.5 tube diameter;
7) production process for all mechanized, stable product quality, be helpful for the comprehensive quality control;
8) polyethylene coated steel pipe production of all raw materials for the production of large enterprise, a reliable source, quality assurance;
9) long service life and can be used in more than 50 years.

Features of 3PE anticorrostion coating machine:

1. Peen-forming derusting equipment . The function is mainly clear rust of steel pipe surface.

2. Electric-magnetic heating equipment . It is Qingdao Friend Plastic Extrusion Technology Co.,Ltd 's patent . It is compared with medium frequency heating equipment .the electric-magnetic heating equipment has some advantages . The first the heating speed of electric-magnetic heating equipment is faster than medium frequency heating equipment . The second , if electric-magnetic heating equipment is compared with medium frequency heating equipment , the electric-magnetic heating equipment can save 40% to 60% electric energy .
3.Epoxy powder thermal spray equipment . The function is mainly coat a layer epoxy powder on the steel pipe surface . The function of a layer epoxy powder prevent steel pipe oxidation. the thickness of epoxy powder is （60—80μm）.

4.Adhesive coating equipment . It include extruder and die head . the extruder adopt electric-magnetic heater which can save 40% to 60% electric energy for customer ! The function is mainly extrude adhesive. The thickness of adhesive is （170—250μm）;

5.Polyethylene coating equipment . it include extruder and die head . the extruder use electric parts which brand is word famous brand. ( Siemens/Omron/Schneider ) . The function is mainly extrude Polyethylene. The thickness of polyethylene is about 2mm to 5mm. Adopt electric-magnetic heater which can save 40% to 60% electric energy for customer . Adopt PLC control and simple operation .Material of screw and barrel: 38CrMoAlA, nitrogen quenched which the thickness layer 0.4-0.7mm; Hardness of screw barrel: >940 HV;Unique grooved structure feed bush with force cooling system that is specially designed by Friend co. which can increase output at 15-20%; Material of die head is 40Cr, the surface and channel of mould is chrom-plated;

6. Water Cooling Equipment. It includes motor/support/ vacuum pump/transport devices. The function is cooling and transport 3PE anticorrosive steel tube .

Technical Parameters of 3PE Anticorrosion Steel Pipe Machine: