In the application of plastic sheets, PET (polyethylene terephthalate) sheets are gradually emerging with their excellent performance. Recently, a PET sheet production line ordered by ACERETECH South American customers successfully completed a trial run in the workshop on July 2. On-site feedback shows that the equipment operates stably and all parameters meet customer expectations, marking another successful delivery.
PET sheet: excellent performance and wide application
PET sheet, as a crystalline thermoplastic, not only inherits the good chemical resistance, dimensional stability and electrical insulation of PET material itself, but also performs outstandingly in transparency, rigidity and surface gloss. It is easy to process and can be processed by thermoforming, vacuum forming, cutting, welding and other treatments, which makes it find its place in many fields. From transparent display trays and containers for food and pharmaceutical packaging, to insulating components and display panel backplanes of electronic and electrical products, to partitions and display panels in the field of architectural decoration, PET sheets are constantly expanding their application boundaries with their comprehensive performance advantages.
Based on recycling, efficient extrusion: ACERETECH production line has many highlights
The PET sheet production line in this trial run is specially optimized for the raw material PET bottle flakes. As a common recycled plastic, PET bottle flakes have higher requirements for equipment in its processing. ACERETECH is well aware of this and has incorporated a number of innovative technologies and precision designs into the entire production line:
Intelligent feeding system: The gate with vacuum sealing design is one of the "smart brains" of this production line. It is equipped with an automatic feeding control device, which can sense the inventory demand of materials in the reaction chamber in real time, accurately control the start and stop and operation rate of the vacuum feeder, and ensure that the raw materials enter the extrusion system stably and evenly, which not only improves efficiency, but also ensures the consistency of product quality.
Core drive guarantee: The selection of gearboxes and motors from internationally renowned brands provides a strong and reliable power foundation for the entire production line, ensuring long-term stable operation.
Efficient and environmentally friendly treatment: Equipped with a professional vacuum pump group and dust removal and filtration system. This not only helps to extract low-molecular volatiles in the melt during the extrusion process and improve the purity of the sheet, but also effectively collects the dust generated during the processing process, improves the workshop environment, and meets the requirements of green production.
Customized heart for PET: The extruder is the core of sheet production. ACERETECH has equipped this production line with a barrel and screw designed specifically for PET. Its process section is designed to achieve a gentler melt plasticization process and reduce the risk of degradation of PET macromolecular chains. A vacuum port is specially opened on the barrel to perform secondary vacuum purification on PET during the melting stage, further remove moisture and volatile substances, and significantly improve the transparency and physical properties of the sheet. The specially designed extrusion section ensures that the PET melt can withstand high pressure and be extruded stably before the die head.
Fine workmanship, excellent performance: detailed explanation of key components
Screw:
Screw diameter: 100mm, aspect ratio: 45/1, providing sufficient melt plasticization and mixing time.
Screw material: 38CrMoAlA matrix + alloy layer, high basic strength.
Maximum speed: 150rpm, adapted to different process requirements.
Unique process: The screw is processed by a fully automatic plasma cladding machine imported from Germany, and the edge is sprayed with nickel-based alloy for more critical parts. This process makes the cladding layer extremely strong and compact, greatly improving the wear resistance, high temperature resistance and corrosion resistance of the screw, effectively extending the service life of the screw and reducing the long-term operating costs of customers.
Barrel:
Barrel material: the same as the screw, 38CrMoAlA matrix + alloy layer, to ensure wear resistance and corrosion resistance.
Heating zone: 8, segmented precise temperature control.
Heating power: about 50KW, providing sufficient heat.
Heater: adopts efficient and energy-saving ceramic heater, and is equipped with a stainless steel cover for protection.
Cooling: equipped with a cooling fan for fast temperature adjustment.
Precision coordination, quality assurance: downstream equipment configuration
In addition to the extruder, the entire production line is also equipped with a series of precise downstream equipment to jointly ensure the excellent quality of the final sheet:
Online melt viscosity measurement system: Real-time monitoring of the melt state to provide a basis for process adjustment.
Temperature controller: Accurately control the temperature of each heating section.
T-type die head: Ensure uniform distribution of the melt and smooth extruded sheet.
Coupling: Efficient power transmission.
Intelligent control system: Integrated operation, simplified process, and improved efficiency.
Melt filter: Further remove impurities in the melt.
Calender roller: Make the surface of the sheet smoother and flatter.
Traction device: Stable control of the output speed of the sheet.
Three-roll calender: Accurate thickness control and surface shaping of the sheet.
Trimming equipment, trimming winder and winder: Complete the edge processing and neat winding of the sheet.
Silicone coating and infrared dryer: Used to process special raw materials or pre-dry the sheet.
Conclusion
The successful trial operation of ACERETECH's South American customer PET sheet production line is not only a strong proof of ACERETECH's technical strength, but also demonstrates its firm commitment to serving global customers and promoting PET recycling and sheet manufacturing technology advancement. This efficient, stable and intelligent production line will surely open up a broader space for the application of PET sheets in the South American market and even globally.
Click the link below to view the factory trial video.
