Comprehensive technical processing guides, machinery parameter recommendations, loading ratios, and high-resolution video/photo showcases for 5 core plastic extrusion & molding sectors.
Grocery bags, agricultural mulch film, packaging, and multi-layer barrier film.
The percentage reduction in resin consumption depends on the film thickness and specific technical requirements.
This level of savings is typically maximized at a blending ratio of 10% to 30% for blown film applications.
The estimated energy savings depend on the machinery configuration, resin matrix type, and blending ratio.
Accurately weigh and proportion the ingredients according to the technical formula. Blend the materials thoroughly in a dry mixer to ensure uniform dispersion of the filler within the virgin resin before feeding them into the extruder.
The blended mixture is fed from the hopper into the barrel of the extruder.
The molten polymer compound is forced upward through an annular die head to form a continuous, hollow tubular parison.
Air supply is continuously regulated to maintain the bubble size and film thickness. An external air ring blows cooling air around the circumference of the film bubble to lower its temperature, transitioning the film from a molten state to a solid, set structure.
After cooling, the tubular film passes through stabilizing guide frames and is flattened by a set of nip rolls (take-up rolls).
The flattened film is guided through edge slitters (if producing single-wound or split films) before being wound into finished film rolls by the automated winding system.