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Application
| Name | Item | Use |
|---|---|---|
| Irradiated XLPE Cable Compound | YHS62020 | Heat resistance, good insulation performance, smooth extrusion surface |
Technical Specifications
Typical physical property data, subject to batch test reports.
| Test project | Units | YHS62020 |
|---|---|---|
| Density | g/cm3 | 1.00 |
| Melt flow rate (190℃ × 2.16Kg) | g/10min | 1.2 |
| Tensile Strength | MPa | 18.0 (After irradiation) |
| Elongation at break | % | 500 (After irradiation) |
| Hot elongation test | 200℃×15min×0.2MPa | |
| Elongation under load | % | 70 |
| Permanent deformation | % | 1.0 |
| Air thermal aging | ℃×h | 158×168 |
| Change rate of tensile strength | % | +9 |
| Change rate of elongation at break | % | -10 |
| 20℃ volume resistivity | Ω.cm | 4.0×10¹⁶ |
| Dielectric strength | MV/m | 34 |
| Resistance to environmental stress cracking | Hore | >500 |
| Oxidation induction period (200 ℃) | min | 48 |
| Low temperature | ℃ | -40 pass |
| Oxygen Index | % | 25 |
Extrusion Process
When the storage environment is wet or the production surface is required to be high, the particles can be dried in a hot air hopper at 70℃ for 1-2 hours.
It is recommended to use a low compression ratio screw extrusion with a compression ratio of 1.2-2.0:1.Before extrusion, the screw should be cleaned to ensure the cleanliness of the product. It is recommended to use 80 mesh or 100 mesh filter screen to avoid impurities in the extrusion process, and to ensure the melt pressure to obtain a good appearance and material density.As the difference between the actual temperature of the melt and the indicated value of the temperature control table varies with the type of extruder, the user is requested to select the appropriate temperature according to the specific situation of the extruder used.The following temperatures can be used as reference for start-up and commissioning:
| Position | Cylinder I | Cylinder II | Cylinder III | Cylinder IV | Cylinder V | Head and mold |
|---|---|---|---|---|---|---|
| Temperature (℃) | 140±5 | 170±5 | 175±5 | 180±5 | 185±5 | 190±5 |
Packaging and storage
- (25 ± 0.2) kg / bag, inner aluminum plastic composite bag, outer kraft paper bag (or customer specified packaging)
- Stored in dry and ventilated place
- Prevent sun, rain and water
- Storage period is 6 months