![]() ![]() Generally, the injection speed should be fast to prevent premature coagulation during injection. ![]() It ranges from 270-295 ° C, and the reinforced GF-PET can be set to 290-315 ° C. The exhaust must be sufficient to avoid local overheating or chipping, but the depth of the exhaust port should generally not exceed 0.03mm, otherwise flashing is likely to occur.Ĭan be measured by air-shot method. Its thickness is about 12mm, and the heat insulation plate must be able to withstand high pressure. It is best to have a heat insulation plate between the mold and the injection molding machine template. PET preforms are generally formed with a hot runner mold. Selection of injection molding machineīecause PET has a short stable time after melting point and high melting point, an injection system with more temperature control sections and less self-friction heat generation during plasticization is required, and the actual weight of the product (water-containing material) cannot be less than the machine injection 2/3 of the amount. The proportion of recycled materials should not exceed 25%, and the recycled materials should be thoroughly dried.Ģ.2. Air shots can be used to verify that the material is completely dry. The drying temperature is 150 ° C for more than 4 hours, and generally 170 ° C for 3-4 hours. For this reason, the material must be dried before processing. When the moisture content exceeds the limit, the molecular weight of PET decreases during processing, and the product is colored and brittle. Precautions for injection molding of PET preformsīecause PET macromolecules contain lipid groups and have a certain degree of hydrophilicity, pellets are more sensitive to water at high temperatures. Pet preform injection machine specification:Ībove model is not all, please contact us if need more details.Ģ. Silicone Rubber Mountings Injection Molding Vulcanizing MachineĬondition: New Automatic Grade: Automatic Injection Pressure(MPa): 210 Material Tank Volume(Cm³ ): 4000 Heating Plate(mm): 850X850 Interactive Interface: English Specification: ISO Certification.1.Structure: Horizontal Automation: Automatic Function: for Making Pet Preform Specification: 19200pcs/hr, 48 cav, 9s, 15g, 260T/3500g Type: Preform Injection Plastic Type: Thermoplastic Computerized. Pet Preform Injection Molding Machine (iPET300/3500) Raw Material: HDPE Automation: Automatic Certification: CE, SGS Specification: CE SGS ISO9001: 2008 Type: Extrusion Blow Molding Machine Making Method of Parison: Extrusion-Blow Molding. High Speed Six Cavity Automatic Blow Moulding Machine with Ce.Volume of Bottle: 1500ml Use Power: 10.5-12kw Machine Weight: 4000kg Features. ![]() Raw Material: PET Automation: Automatic Certification: CE, SGS, ISO9001:2008 Locked Type: Hinge Locking Max. ![]()
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