- Material: HDPE resin
- SIize: dn40mm,en4.0mm
- Colour:black or others
- Form Supply: 2000 meters coil length
- Standard: GB/T 24456-2009 Jtt496-2004
Detailed Description
- The core is solid, non-vonlatile lubricant.
- The core is squeezed into HDPE channei boundary,uniform distribution,no stripping,no abscission.
- The core has the same mechanical and physical behavior with HDPE resin.
- The friction characteristics of the corer is in lifelong time.
- The core does not react with water,can be rewashed easily after accident.Applications
- The optical cable of installation and protection .
- Communication pipeline on highway
- Others Communication pipeline
Technical Criteria
|
1. Appearance Quality
|
Entity of inner and outer walls should be smooth, uniform and smooth, without defects of the crater and the formation of impurities; the appearance of uniform color, no decomposition of the color lines and spots; cross section no bubbles, cracks; the lining of the silicon core close fusion bonded no absolve phenomenon; the outer wall of productsmarked and clear.
|
|
|
2. Ring Stiffness,KN/m2
|
≥40
|
|
|
3.Flat Test
|
Pressure vertically to the outside diameter of the deformation for 40% of the original OD, immediately unloading, the specimen does not rupture, not hierarchical.
|
|
|
4. Restoration Ratio
|
Pressure vertically to the outside diameter of the deformation for 30% of the original OD, immediately unloading, the specimen does not rupture, not hierarchical, outside diameter natural recovery to more than 90% of the original.
|
|
|
5. Tensile Strength,Mpa
|
≥21
|
|
|
6. Extension Rate at Break,%
|
≥350
|
|
|
7.Max Traction Load,N
|
≥8000
|
|
|
8. Falling Weight Impact Test
|
Temperature 0 ° C, height of 2m, with 2Kg hammer impact 10 times should be more than nine times the cracking phenomenon.
|
|
|
9. Ektexine Hardness,HD
|
≥59
|
|
|
10Hydraulic Pressure Test
|
Temperature of 20 ° C, pressure 50Kpa conditions, maintain 24-hour sample of the connector, pipe plug leakage.
|
|
|
11Longitudinal Reversion,%
|
≤3
|
|
|
12. Cold Bending, Semidiameter mm
|
≤400
|
|
|
13.Friction Factor
|
Static ( plate )
|
≤0.25
|
|
Dynamic ( drum method)
|
≤0.15
|
|
|
14. Line Frequency Hardness,KV/mm
|
≥15
|
|
|
15. Chemical Resistance
|
The samples are placed in the 5% NaCL, 40%H2SO4, 40%NaOH solution soak for 24 hours, no obvious corrosion phenomenon.
|
|
|
16. Cracking Resistance,MPa
|
≥2.0
|
|