Three Layer 3PE Steel Pipe Anti-corrosion Coating Processing Production Line

Three Layer 3PE Steel Pipe Anti-corrosion Coating Processing Production Line
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Three Layer 3PE Steel Pipe Anti-corrosion Coating Processing Production Line

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3pe- Steel  Pipe Anticorrosion Coating Production Line description 
Model:159-1400mm
Diameter range:159mm-1400mm
Extrusion Capability:≤350kg/h

According to customer demand for the production of different specifications products

Through long-term efforts Qingdao Huashida Machinery Co.Ltd. has produced 3PE coating production line, so that meetthe demand of more customer. It indicating the direction of the 3PE coating production line with high performance.

The composition of 3-layer PE coating production line
The three -layer PE anticorrosion structure includes fusion bonded epoxy-powder bottom layer, polymer adhesive middle layer and polyethylene top layer. The so-called 3-layer PE Coating Production line,3-layer refers to the 3-layer structure of epoxy primer, that is a thermosetting, non-toxic coating, curing after form high molecular weight cross-linked structure coating, With excellent chemical corrosion resistance and high mechanical properties, especially the best wear resistance and adhesion. It can form a continuous coating and steel pipe surface directly bonded, with good resistance to chemical corrosion and anti-cathode stripping performance. 
To ensure that the overall coating at a higher temperature Has a good adhesion, making the middle layer of adhesive reactive groups to form a chemical bond. That is high quality of steel pipe anti-corrosion coating buried in the ground.


The intermediate layer is usually a copolymer binder, the main component of which is polyolefin, and is widely used as a vinyl copolymer adhesive. The polar moiety of the copolymer adhesive and the epoxy group of the epoxy primer can react to form hydrogen bonds or chemical bonds to form a good bond between the intermediate layer and the substrate; and the non-polar ethylene moiety has a Good affinity, so the middle layer and the surface layer also has a good bonding performance. Three-layer structure of polyethylene anti-corrosion, as the buried pipe outside the protective layer is very superior, and the technology has been widely used in the West-East Gas and oil field oil supply, urban gas supply, water pipeline used on the anti-corrosion.

3pe- Steel  Pipe Anticorrosion Coating Production Line 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, s end→unload pipes

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Huashida Machinery, with over 14 years' experience, is one of the professional three layer 3pe steel pipe anti-corrosion coating processing production line manufacturers in China. Offering the customized service, we warmly welcome you to get the high qualified products from our factory.

Three Layer 3PE Steel Pipe Anti-corrosion Coating Processing Production Line

No.NameUnitQtyRemarks
External   cleaning and 3PE system of the steel pipes
1Flatform of Upload pipesM15Combination of dual structure
2Hydraulic tube pulling machineset 8Double lift,lifting force 
more than 8T
3Air hydraulic stationSet3Air cooler, throttle valve
4Derusting spiral transmission lineM27Variable frequency speed regulation, solid tyre
5Synchronous dynamic spiral single-frameSet2Variable frequency speed regulation, solid tyre
6The lower type shot blasting machineSet1Max pipe diameter 1220mm
7Dedusting systemSet1first degree dust removal + pulse bag type dust collector
8transition platform line

M15Combination of dual structure
9PE Spiral transmission lineM54Variable frequency speed 
regulation,solid tyre
10Intermediate frequency heaterSet1800K

11Dynamic high temperature rollerSet1Variable frequency speed 
regulation
12Epoxy powder coating systemSet1Max pipe diameter 1220mm

13The powder room, vulcanization barrelSet1Non inductive heating 
material
14two stage powder recovery deviceSet1cyclones dust collector+
pulsed dust collector
15Automatic vacuum   feeding machine Set2800kg/h+300kg/h

16SJ-180/30Extruder
SJ-180/30Extruder
Set1Q≈650kg/h
250KW DC,Q≈650kg/h

17SJ-65/30 Extruder
SJ-65/30 Extruder
Set145KW Q≈150kg/h
45KW AC,Q≈150kg/h
18Extruder moving mechanismSet1Electric control
19Hot melt extrusion die headSet1T die head
20PE sheet extrusion die mouldSet1T die head
21Hot   melt adhesive 
PE   coating device
Set1Silicon rubber roller, 
double cylinder, internal 
water cooling
22Environmental protection ventilation systemSet14KW

23cooling spray systemSet1Water pump, water spray, pipelines, reflux tank
24The cooling splash-prevented plastic curtain-wallSet1Approx 110m2
25External anti-corrosion pipe unload platformM15Combination of dual structure
26Pipe beveling grinding machineSet24KW motor electrical control system of walking
27Dedusting systemSet2Pulse dust collect
28Hydraulic lifting rotary pipe deviceSet1Hydraulic lift,the four round of the WPA direct drive
29The   electrical control system of 3PE steel pipes production lineSet1main line of centralized 
control/individual/control
PLC Control

compressed air system
30Screw type air compressorSet16m³/min,0.7MPa

31freeze drying machineSet16m³/min,Enter temperature≤80ºC
32Precision filterSet30.1PPM

33Gas tankPC



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