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Risoluzione schermo: 640 x 480 800 x 600 1024 x 768 1280 x 1024 Nome utente: Password: Modo formattazione: Base  Help  Prompt  Formato: Carattere Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Colore Nero Rosso Giallo Rosa Verde Arancione Porpora Blu Beige Marrone Teal Blu scuro Castano Verde lime Messaggio: * HTML non è attivo * Il codice su forum è attivo Smiles [quote][i]Inviato in origine da machinerymaster[/i] [br]PET plastic injection molding process is one of the very important technology for plastic processing.This blog systematically introduces PET processing by Injection Machine . The content includes PET property, features, injection molding process, molding machines, process conditions, processing ways,etc. It will help PET making factory get useful knowledge in few minutes. PET plastic injection molding process is one of the very important technology for processing plastic, PET plastic bottles, most of the plastic packaging plant will adopt blow molding production process, but the injection molding process has especially the unique processing advantages. For PET for injection molding, technical personnel need to consider many factors. Injection molding machine: Injection molding is mainly used to enhance the molding of PET. PET can only be molded by a screw type injection molding machine in general. It is best to choose a mutant screw with a reverse ring at the top, which has a large surface hardness and wear resistance, and the ratio of the length to diameter ratio not L/D = (15~20):1 compression is about 3:1. L/D too large materials stay in the barrel for too long, excessive heat can cause degradation and affect the performance of products. The compression ratio is too small to produce less heat, easy to plasticization and poor performance. On the other hand, the fracture of glass fiber will be more, and the mechanical properties of the fiber will be reduced. When the glass fiber reinforced PET is reinforced, the inner wall of the barrel is badly worn, and the barrel is made of wear-resistant material or lined with wear-resistant material. As the nozzle is short, the inner wall requires polishing and the aperture is as large as possible. The hydraulic brake valve type nozzle is good. The nozzle should have heat preservation and temperature control measures to ensure that the nozzle will not be frozen and blocked. But the nozzle temperature is not too high, otherwise cause salivation. The low pressure PP material must be used before starting the molding, and the barrel is cleaned. Master Packing Co.,Ltd Plast has earned an excellent reputations for best quality machines, reliability through machines best performance. The key to our success comes from innovative design, quality machine performance, considerate after sales services. Due to the support of our experienced techno-commercial personnel, our customers place complete trust & reliance on Master Packing Co.,Ltd Machinery. Click https://www.master-machinery.com/product/bottle-machine/ to know more information. [/quote]   Seleziona qui per inserire la tua firma.