A heat insulator is sometimes placed between the hot runner mold and the injection molding machine. Hot runner molds are used to manufacture PET preforms. Injection systems with temperature control sections and low friction heat are required since PET has a stable time after melting and high melting point, and the actual weight of the plastic should be 2/3 of the one-shot amount of machine injection. Recyclable materials should be no higher than 25%, and they should be thoroughly dried before use. It requires drying at 150 ☌ for at least four hours, generally 170 ☌, over three to four hours, before processing. PET loses molecular weight when moisture levels exceed the limit the product turns color and becomes brittle. Also, due to their presence, PET has a phospholipid-based structure. Plastic Processingĭue to its lipid-related nature and its hydrophilicity, PET pellets are very sensitive to water at high temperatures. In this situation, the fluidity of the melt is often affected mainly by pressure. As of today, GF-PET is the most popular polymer among customers, which is mainly used in preform injection.Ĭonsequently, the properties of PET in a liquid state are much better, and pressure is more important than temperature in terms of viscosity. Polyethylene terephthalate (PET) is a naturally occurring thermoplastic polymer commonly used in plastic products. This service allows you to make everything you need in one convenient location. Our preforms are available in our facility and can be made in-house or customized to your packaging needs with an individual preform mould crafted from PET. We have a full range of plastic preform mould manufacturing capabilities and create molds in a pleasant working environment. Topworks’ experienced and committed workforce specialize in multiple divisions to provide designing and building of moulds for creating unique features tailored to different kinds of PET plastic preforms. Welcome everyone to visit JTP MOULD, It's our pleasure to know everyone.Overview of company’s PET preform mould making We can ship your plastic moulds with 1 week after you confirmed our final samples. The delivery time should be calculated from the date you approved our mould drawing. How long of your mould delivery time?Ī: It takes 6-10 weeks to have the mould manufactured depending on the mould structure and the number of cavity (single or multi) after you approved our mould drawing. We can suggest you the proper cavity number as per your injection machines sizes.Ī: By T/T, L/C, Trade Assurance, Western Union. What kind of mould can you make?Ī: We can make all kinds of plastic injection moulds and blow moulds. And we can make the mould trial with different material according to your requirement. We will give you some suggestion after we checked the function of your component. What type of plastic material is best for my design/component?Ī: Plastic Materials selection depends on the application of your product. Q:5. If i provide you 3d drawing of my product, can you quote the price & make the mould as per the 3d drawing?ĭWG, DXF, STEP, IGS and X_T files can all be used to quote price, make mould as per your models - This can save time and money in producing your parts. Our QC team mainly do the following procedures:ĭ) Mould trial report and samples InspectionĮ) Final inspection for mould & packing before shipmentIf you have another question, pls feel free to contact us as below: We have professional team to control the quality. Q: 4.How about quality control in your factory?Ī: We believe "Quality is above everything". It takes 1 hour by bullet train from Ningbo to our city. It takes 3.5 hours by train from Shanghai to our city. It takes 2 hours by flight from Guangzhou to our city. The main Mold Steel and Hardness for you reference:įAQ Q: 1 Are you trading company or manufacturer ?Ī: Our factory is located in Huangyan, Taizhou city, Zhejiang Province, China.One hour from Taizhou airport by car, 15 minutes from train station to our factory.Ī: You can come to our city by flight, bus or train. 4 Cavities 3 Gallon Injection Pet Preform Mould
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