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Plastic Bottle Pet Preform Injection Molding Machines
PET bottle preform are processed again by blow molding to form plastic bottles, including bottles used for packaging cosmetics, medicine, health care, beverages, mineral water, reagents, etc. this bottle making method is called two-step method, that is, the method of forming bottle blanks by ZOWEITE® PET bottle preform injection molding machine and PET plastic bottles by blow molding again.
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Product Description
Adhering into the theory of "quality, services, efficiency and growth", now we have gained trusts and praises from domestic and international shopper for Plastic Bottle Pet Preform Injection Molding Machines, Our really specialized process eliminates the component failure and offers our shoppers unvarying top quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Plastic Bottle Pet Preform Injection Molding Machine, Plastic Injection Molding Machine, Molding Machine, Make sure you feel cost-free to send us your specifications and we'll respond to you asap. We have got a professional engineering team to serve for the every single thorough needs. Free samples may be sent to suit your needs personally to know far more facts. So that you can meet your desires, be sure to genuinely feel cost-free to contact us. You could send us emails and call us straight. Additionally, we welcome visits to our factory from all over the world for much better recognizing of our corporation. nd merchandise. In our trade with merchants of several countries, we often adhere to the principle of equality and mutual advantage. It is our hope to market, by joint efforts, both trade and friendship to our mutual benefit. We look forward to getting your inquiries.
ZOWEITE® PET bottle preform are processed again by blow molding to form plastic bottles, including bottles used for packaging cosmetics, medicine, health care, beverages, mineral water, reagents, etc. this bottle making method is called two-step method, that is, the method of forming bottle blanks by Plastic Bottle Pet Preform Injection Molding Machines and PET plastic bottles by blow molding again.
PET bottle preform is a typical Plastic Bottle Pet Preform Injection Molding Machines product, which is easy to transport. It is mostly made of plastic, with uniform texture and good insulation. It is an intermediate product of plastic bottles and machine oil barrels. Under a certain temperature and pressure, the mold is filled with raw materials and processed into a bottle blank with a certain thickness and height corresponding to the mold under the processing of the Plastic Bottle Pet Preform Injection Molding Machines. Polyethylene terephthalate is the most important variety of thermoplastic polyester. It is called polyethylene terephthalate in English, which is referred to as pet or PETP (hereinafter or PET), commonly known as polyester resin. PET bottles are widely used in daily necessities, daily chemical packaging and other fields. From mold processing to machinery and equipment, it is very picky, easy to get started and difficult to do precision.
What should we pay attention to when operating the Plastic Bottle Pet Preform Injection Molding Machines？
Because pet macromolecules contain lipid groups and have certain hydrophilicity, the pellets are sensitive to water at high temperature. When the water content exceeds the limit, the molecular weight of pet decreases during processing, and the products are colored and brittle. Therefore, the materials must be dried before processing. The drying temperature is 150 ℃ for more than 4 hours, generally 170 ℃ for 3-4 hours. The air injection method can be used to check whether the material is completely dry. Due to the short stabilization time after the melting point and high melting point of pet, an injection system with more temperature control sections and less self friction heat generation during plasticization shall be selected, and the actual weight of the product shall not be less than half of the injection volume of the Plastic Bottle Pet Preform Injection Molding Machines. Based on these requirements, ZOWEITE has developed a special plasticizing system for pet in recent years. The clamping force shall be greater than 6300t / m2. Do not use too long residence time to prevent molecular weight reduction. Try to avoid temperatures above 300 ℃. If the shutdown is less than 15 minutes. Only air shooting is required; If it exceeds 15 minutes, clean it with viscosity PE and reduce the barrel temperature to PE temperature until it is started again.
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