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Steel Pipe PE Coating Apparatus
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| Steel pipe PE coating line is designed to coat on steel
pipe continually by using PE resin for the purpose of
improved water-resistance, chemical proof and shock absorption
as well. |
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• Available Resin : Polyethylene / Polyglue / Masterbatch
• Available Width : Max 1500mm
• Machine Speed : 3m/min - Max
• Extrusion Capacity : Polyethylene - 800kg/hr
Polyglue - 140kg/hr
Masterbatch - 25kg/hr
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Plant Specification |
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Material Specification |
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Pipe Specification |
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Available Pipe Size |
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| * Steel Pipe 3-layer Coating Line |
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| Steel Pipe |
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Surface
Pre-Heating |
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Pre-Treatment |
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Inspection |
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High-press
Steam Cleaning |
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Inspection |
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Pre-Heating |
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Powder Epoxy Electrostatic Coating |
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Adhesive Coating |
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Anti-Corrosion
PE Coating |
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Water Cooling |
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Pin hole Test |
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Cut back
at body |
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Inspection |
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Marking&Packing |
| * Steel Pipe Spiral Die Type Coating Line |
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| Steel Pipe |
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Surface
Pre-Heating |
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Pre-Treatment |
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Inspection |
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High-press
Steam Cleaning |
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Inspection |
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Pre-Heating |
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Adhesive Coating |
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Anti-Corrosion
PE Coating |
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Water Cooling |
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Pin hole Test |
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Cut back
at body |
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Inspection |
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Marking
&Packing |
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| * Steel Pipe 3-layer Coating Line |
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| * Steel Pipe Spiral Die Type Coating Line |
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| Internal Blast Line |
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The internal mechanical cleaning machine is a wheel
type blasting machine using shot or grit
abrasive to clean the inside of the pipe. We also can
supply internal air blasting system for smaller diameter
pipe. |
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| * Internal Blast Line |
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| Steel Pipe |
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Surface
Pre-Heating |
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Blasting |
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Coating(Primary) |
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Pin hole Test |
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Coating(Secondary) |
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Final Inspection |
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Remove the grease, rust and other unnecessary substance
from inside of the pipe using wire brush.
Normally apply the Liquid epoxy paints with the speed
of
100-200μ within 4 hours after pre-treatment. |
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| CHARACTERISTICS |
APPLICATION & SPREADING RATE |
| Raw material |
Powder primer
epoxy resin |
Voltage |
30-110㎸ |
| Gloss(DIN 67630) |
68% |
Polarity |
None |
| Flow |
Smooth |
Average film thickness |
50㎛ |
Storability
(approx30℃) |
6 month |
Surface |
Metal |
| (DIN 55990, 180℃) |
43 seconds |
Surface preparation |
Blast cleaning
A SA 2½ |
Erichsen Index
(DIN 53156) |
6㎜ |
Mass density
(DIN 66990) |
1.49 g/㎖ |
Mandrel bend test
(DIN 53152) |
5㎜ |
Theory. Spreading rate |
13.1㎡/㎏ 50㎛ |
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pract. Spreading rate |
Depending
on profile |
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