In the vast world of plastic products, plastic films are everywhere, from daily food packaging to protective materials in the industrial field, they play an indispensable role. Film blowing machine converts plastic particles into high performance films through the blow molding process, promoting the development of the film industry.
(a)Definition of film blowing machine
Blown film machines are used to produce plastic film through a process called blown film extrusion. The machine melts plastic resin pellets and extrude them through a circular die, inflating the resin into a bubble shape. The bubble is then cooled and flattened to form a continuous plastic film sheet or tube.
(b)Working principle of film blowing machine
The working principle of the film blowing machine is to feed plastic resin pellets into the extruder barrel. These pellets gradually melt under high temperature and pressure, becoming a fluid plastic melt that is forced through a circular die. Air is introduced to expand the molten resin into bubbles. As the bubble expands, it is cooled by air or water to solidify the plastic film. The film is then folded, flattened and wound onto a reel.
Raw materials: To meet your own needs, consider the density, melting point, heat resistance, etc. of the material. Common materials include PP, PE, and PVC.
Energy consumption: Film blowing machines with low energy consumption can save energy costs and are more environmentally friendly.
Precision control: Choose a blown film machine with an advanced thickness control system, which can produce a film with a very small thickness error to ensure product quality.
Efficient production: Choosing a film blowing machine with an automatic control system can achieve efficient continuous production and greatly improve production efficiency.
Technical and after sales service: whether the manufacturer can provide corresponding technical support and after-sales service.
Food packaging:The PE film produced by the blown film machine is often used in food packaging bags and cling film, with good moisture resistance and transparency.
Industrial packaging:The high strength, high toughness film produced by the blown film machine protects the product from collision, friction and corrosion during transportation and storage, ensuring product integrity and quality.
Agricultural mulching films:Agricultural film is an indispensable material in modern agricultural production, and the mulch film and shed film produced by the film blowing machine can increase soil temperature, maintain soil moisture, inhibit the growth of weeds, and create a good growth environment for crops.
Medical supplies:Medical films are used to make disposable gloves and protective clothing with high hygiene standards.
Versatility:Can produce a wide range of films, including single-layer, multi-layer, and co-extruded films.
Customizability:Films can be tailored in terms of thickness, width, and properties .
Cost effectiveness:efficient use of raw materials and energy, cost savings.
Film blowing machines are the backbone of the plastic film manufacturing industry, offering unparalleled versatility, efficiency and innovation. As the demand for high-quality, sustainable films continues to grow, film blowing technology will continue to be at the forefront of the industry, driving advancements and meeting the changing needs of various industries.
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