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3PE -coating Q345B SSAW stalen buisleidingen
| Brand Name : | Youfa |
|---|---|
| standard : | Bs,Astm,Gb,Jis,Din,Api |
Product beschrijving
3 -laags PE Coating Steel Pipe Technische instructies
Structuur van de stalen buis van 3PE -coating
Drie lagen PE-coating anti-corrosieve stalen buis voert de standaard van GB/T23257-2009 en DIN30670 uit.
Structuur: binnenstalen buis, epoxypoedercoating, middelste kleeflaag, buitenste laag van polyethyleen met hoge dichtheid
De voordelen van antiseptische pijp
1. Perfecte impactweerstand, wrijvingsweerstand, schokweerstand
2. Zoutweerstand met hoge zuur alkali
3. Hoge weerstand van elektrische schok
4. Laag sijpelende watersnelheid
5. Lange gebruikstijd
3PE -coatingproductieproces
Productieproces
Stalen buisinspectie → stalen buis voorverwarming → Stalen buisschotblaasting → ankerpatroon Diepte/reinheid Inspectie → Stalen buismedium → Frequentieverwarming → Epoxy poederspuiten → Lijmcoating → Polyethyleenpakkoeling tot 60 ° C hieronder → Online elektrische spark → Pijp eindbehandeling → Inspectie van eindproduct → Productmarkering → certificeringsstokken → in opslag
Specificatie van de dikte van anti-corrosieve coatinglaag
|
DN of steel pipe |
Epoxy powder |
Adhesive Layer |
Minimum thickness of the coating(mm) |
|
|
Common Level(G) |
Strengthen Level(S) |
|||
|
DN≤100 |
≥120 |
≥170 |
1.8 |
2.5 |
|
100<DN≤250 |
2.0 |
2.7 |
||
|
250<DN<500 |
2.2 |
2.9 |
||
|
500≤DN<800 |
2.5 |
3.2 |
||
|
DN≥800 |
3.0 |
3.7 |
||
Eigenschappen van het epoxypoeder
|
NO. |
Item |
Indexes |
|
1 |
Size distribution(%) |
150μm oversize powder≤3.0 |
|
2 |
Volatiles(%) |
≤0.6 |
|
3 |
Density(g/m3) |
1.3-1.5 |
|
4 |
Gel time(230ºC)/(S) |
15-30 |
|
5 |
Fixed time(230ºC)/(min) |
≤3 |
Eigenschappen van fusie -gebonden epoxycoating
|
NO. |
Item |
Indexes |
|
1 |
Adhesive(grade) |
≤2 |
|
2 |
Cathodic disbonding(65ºC,48h)/(mm) |
≤8 |
|
3 |
Cathodic disbonding(65ºC,30h)/(mm)) |
≤15 |
|
4 |
Counter bending(-20,2.5) |
No cracks |
Eigenschappen van lijm
|
NO. |
Item |
indexes |
|
1 |
Density (g/m3) |
0.920-0.950 |
|
2 |
MFR(190ºC,2.16kg)/(g/10min) |
≥0.7 |
|
3 |
Vicat softening point(ºC) |
≥90 |
|
4 |
Brittle temperature(ºC) |
≤-50 |
|
5 |
Oxidation induction time(OIT) |
≥10 |
|
6 |
Moisture content(%) |
≤0.1 |
|
7 |
Tensile strength(MPa) |
≥17 |
|
8 |
Elongation at break(%) |
≥600 |
| ASTM A53 /A106 Chemical Components and Machanical Property | |||||||||||||
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A53 | A | ≤0.25 | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥330 | ≥205 | ≥29.5 |
| B | ≤0.30 | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥29.5 | |
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Si | Mn | P | S | Cu ,Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A106 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥30 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥485 | ≥275 | ≥30 | |
API -standaard voor naadloze stalen pijp
| Executive Standard | Grade / Material | Product Name |
| API Spec 5CT | J55, K55, N80, L80,C90, C95, T95, P110, M65 | Specification for Casing and Tubing |
| API Spec 5L PSL1 / PSL2 | A,B X42, X46, X52, X56, X60, X65,. X70 | Specification for Line Pipe |
Maten:
Maximale diameter: 36 "(914,4 mm) Minimale diameter: 1/2" (21,3 mm)
Maximale dikte: 100 mm Mininmum Dikte: 1 mm
Toepassingen:
| Chilled water pipe | Steam/condensate pipe | Heat exchanger pipe | Marine/offshore pipe | Dredging pipe | Industrial pipe |
| Oil and gas pipe | Fire fighting pipe | Construction/structure pipe | Irrigation pipe | Drain/sewage pipe | Boiler tube |
Coating:
| 3PE Coating | 3PP Coating | FBE Coating | Epoxy Coating | Special Painting |
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