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Lab Supercritical CO₂ Foaming Extruder
Lab supercritical CO₂ foaming extruder, the host part by a double screw extruder, into a single screw extrusion unit, supercritical carbon dioxide in the twin screw extruder injection, the twin-screw mixing dispersion, after to single screw extruder, the melt pump in single screw phase, by reducing the expected temperature increased pressure, make the supercritical body further dissolved in the melt, Improve solubility and dispersion uniformity. Melt from the mold head out immediately after foaming expansion, followed by three roller cooling shape, improve the surface quality, make the desired product thickness.
Description
Lab Supercritical CO₂ Foaming Extruder Description
The temperature control accuracy of the foaming extruder, especially the temperature control accuracy of the lower stage extruder and the head, plays a key role in the performance of foaming products, because the melt strength is a key factor affecting the performance of foaming products. Melt strength is directly related to melt temperature, so it is particularly important to keep melt temperature suitable for foaming in extrusion foaming process. The temperature of the extruder must be controlled precisely in order to keep the melt temperature fluctuation small. The output power of heating and cooling is controlled by the combination of dual channel PID and bidirectional thyristor, which greatly reduces the thermal inertia of the system and the hysteresis of the control. Therefore, the temperature control accuracy is improved. Experiments show that the accuracy of the temperature control system is within ±1℃, so its application greatly improves the performance and yield of foaming products
Lab Supercritical CO₂ Foaming Extruder Products as below
Application of Lab Supercritical CO₂ Foaming Extruder
- Auto parts and components
- Precision office equipment parts
- Electronic/electrical/semiconductor parts
- Packing
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Parameters of Lab Supercritical CO₂ Foaming Extruder
Applicable materials | PE, PP class |
Screw diameter | 25mm |
Long diameter ratio of screw | 28 |
The screw speed | 0-120rpm |
Mold head width | 200mm |
Product width | 0-150mm (depending on the material) |
Product thickness | 0.02-0.1mm |
Roller width | 220mm |
linear velocity | 0-10m/min |
Pressure measurement range / precision | 0-50MPa /0.5%FS |
service temperature | Room temperature -350℃ |
Temperature control accuracy | ±1℃ |
Power of main motor | 3kW |
working voltage | 3φ380V AC ±10%，1φ220VAC±10%，50Hz |
power rating | Approximately 21kW (including temperature cycle controller) |
L*W*H | 2850mm ×1050mm ×1750mm |
The weight of the machine | About 800kg |
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