3LPE Coating Pipe Production Line For Steel Gas Oil Pipe Corrosion Protective
3LPE coating pipe production line for steel gas oil pipe corrosion protective
3LPE (Three-Layer Polyethylene) anti-corrosion coating production lines are designed for pipes with diameters ranging from Φ59 mm to Φ3000 mm. This system applies a robust three-layer protective coating that ensures long-lasting durability and superior corrosion resistance, making it ideal for critical pipeline projects worldwide.
Coating Structure & Technology:
Layer 1: Fusion-Bonded Epoxy (FBE) – Applied at >100 μm to provide strong adhesion and exceptional corrosion protection.
Layer 2: Adhesive (AD) – A bonding layer of 170–250 μm that ensures seamless integration between epoxy and polyethylene.
Layer 3: Polyethylene (PE) – A durable outer shield of 2.5–3.7 mm, offering mechanical strength and environmental resistance.
The three layers are seamlessly fused into a single, high-performance coating that bonds firmly to the steel pipe, creating an impermeable barrier against corrosion.
Technical prpcess:
Upload pipes→pipes screw conveyor→shot blasting → intermediate frequency heating→Epoxy powder coating→Adhesive & polyethylene coating→cooling spray→pipes screw conveyor→Pipe end beveling→unload pipes
Equipment List
|
No. |
Name |
Set |
|
A. Surface cleaning -Shot blasting line |
||
|
1 |
Pipe-converying Equipment |
1 |
|
2 |
Shot Blast Cleaning Machine |
1 |
|
3 |
Cyclone Dust Collector |
1 |
|
4 |
Cartridge dust collector |
1 |
|
5 |
Centrifugal exhaust fan |
1 |
|
6 |
PLC control system |
1 |
|
B. Coating applying equipment |
||
|
1 |
Spiral Conveyor |
1 |
|
2 |
Induction heating device |
1 |
|
3 |
Powder spraying device |
1 |
|
4 |
Automatic loading dryer |
2 |
|
5 |
SJ-65/30 Extruder |
1 |
|
6 |
SJ-150/30 Extruder |
1 |
|
7 |
Hot melt adhesive extruder die |
1 |
|
8 |
PE sheet extruder head mold |
1 |
|
9 |
Hot melt adhesive/PE sheet coating device |
1 |
|
10 |
Cooling Spray equipment |
1 |
|
C.Platform Equipment |
||
|
D.End cleaning Equipment |
||
|
1 |
PE Beveling Machine |
2 |
|
2 |
Hydraulic Lifting and Turning Machinery |
1 |
|
3 |
Hydraulic Equipment |
1 |
|
4 |
PLC |
1 |
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