1 Inner tube production line: Feeding - Inner tube PE extrusion / Adhesive extrusion - Two-layer co-extrusion die - Cooling - Traction - PE tube coiling
2 compound production line:
(2) SJL-60 type: Produce pipe with outer diameter of 14 to 63mm, the production speed is 3 to 20m/min, adopts one-step method to produce on line, the total length of the production line
60m. The production process is shown in the cross-linked PE aluminum-plastic composite pipe. The volume of the cross-linked pool is 2m3, and the hot water or steam is passed through 90°C.
2. Lap-style aluminum-plastic composite pipe production technology: aluminum strip coil - welding - urban tube - inner tube molding - outer tube molding - cooling setting - traction - cutting - coiling - yield. The coils of aluminum tape are conveyed continuously forward and rolled into a tube shape. The ultrasonic welding machine welds the lap joints to aluminum tubes. The inner and outer PE layers of the composite pipe can be fed by a single extruder to the head of the composite pipe, or two extruders can feed the inner and outer layers respectively. The coalescence layer between the aluminum tube and the PE layer was extrusion coated with an extruder. Aluminium-plastic composite pipe inner coating head structure: 1 in a composite head; 2 an aluminum tube forming device; 3 an outer composite head; 4 a short connection block; 5 a porous connection block; 6 a threading machine; 7 a squeeze connection block; 8 long connection block; 9 an ultrasonic welding machine
Inside the composite head molding composite pipe inner PE and aluminum tube inner coating, but also play a supporting role in the welding of aluminum tubes. The external composite head molding pipe outer PE and aluminum pipe outer coating. The composite head is communicated with three extruders, two of which are extruded out of PE, feeding the inside and outside of the PE of the composite pipe, and the other one is extruding the material of the bundling layer and diverted in the flow path of the composite head. Inner and outer adhesive layer feeding.