Radiation Cross-Linked Heat Shrinkable Sleeve for Corrosion Resistant Automatic Production Pipeline Joint Protection

1. The PE back film extrusion line produces PE film according to customer requirements.
2. The PE back film is sent to a professional irradiation company for radiation crosslinking treatment with the appropriate radiation dose, ensuring the sleeve has excellent fire resistance and tensile strength.
3. The irradiated back film is put into the heat shrinkable sleeve adhesive coating line for coating. During this process, the heat shrinkable sleeve substrate is first stretched twice to ensure good shrinkage rate, then hot melt adhesive with a unique formula is extruded by a professional reaction vessel and bonded with the back film, resulting in high peel strength of the finished product.

• Oil & gas transmission pipelines
• PU insulated pipes
• 3PE/2PE coated steel pipes
• Thermo insulated pipes
• Metal reinforced HDPE corrugated pipes (drainpipes)

1. PE Back Film Extrusion Line

• Single screw extruder
• Die head
• Three Calender
• Roll temperature controlling system
• Cooling rack
• Hauling off
• Rewinding machine

2. Adhesive Mixing and Coating Line

• Unpowered uncoil device
• Reactor
• Adhesive coating system
• Cooling water tank
• Haul off
• Coiler platform

3. Additional Equipment for Three-Layer Fiber Reinforced Heat Shrink Sleeve

• Fiber uncoiling device
• Fiber heating device
• Fiber flattening device

• Fast shrinkage speed and convenient construction
• Excellent waterproof and anti-corrosive performance
• Long service life and easy transportation
• Adopts pure PE material and imported adhesive to ensure product quality
• Provides one-stop solution: design, installation, commissioning and training
• Shares 389 sets of global production experience
• Has 9 professional senior engineers and a high-end plastic machinery expert workstation in China