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PVC is a widely used industrial thermoplastic used to create a variety of plastic goods including pipes, siding, and more. Its excellent strength and good weatherability make it suitable for many projects. As PVC is in large demand, finding a knowledgeable manufacturer to guide you through PVC injection mold processing is important.
Polyvinyl chloride or PVC is a popular thermoplastic polymer. It is white and can be brittle until additional plasticizers are added. PVC was first used commercially by B.F. Goodrich Company during the 1920s. It can be used in two different forms, as a rigid polymer or as a flexible plastic. Plasticized PVC can bend. Examples of flexible PVC include flooring for homes, insulation on electrical wires, and oftentimes as a replacement for rubber. The rigid form of PVC is most commonly used for construction such as water distribution pipes for plumbing, business machine housings, or vinyl siding on buildings.
PVC plastic is budget-friendly, resistant to environmental degradation, chemicals, and alkalis, and has excellent tensile strength and hardness. Like other thermoplastics, it can be heated into a moldable state, cooled, and then reheated again without degradation. Since PVC can be liquified, it can easily be injection molded. PVC is easy to recycle. Since PVC has a high density and great strength, it has become widely used. Like other plastics, it has long-lasting characteristics making it the ideal choice for industrial applications.
The PVC plastic begins as a pellet which is melted into a moldable state. The optimum PVC molding temperature is generally 345◦F and 375F. It is very important to process PVC at the correct melt temperature to avoid severe problems from decomposition. Once the material has reached the melting temperature, it is then injected into the cavity of a two-part mold where it will harden. The PVC will solidify almost as soon as the mold has been filled. The part then cools to the shape of the mold. Once it has fully cooled, the two sides of the mold open to eject the part, where it is caught by a bin. The “A” and “B” parts of the mold then reset to start the process over again. Shrinkage in PVC is between one to two percent but can vary based on hardness, holding time, melt temperature, mold temperature, and type of additives used. ICOMold are experienced PVC injection molders and possess the speed and equipment for a seamless process.
By choosing PVC injection molding, you will be able to use your mold again and again, which results in a high production output rate. This is highly cost-effective and efficient than other manufacturing methods. Injection molding allows you to manufacture parts with greater detail and the ability to combine multiple assembly steps into one process.