Peek molding is a process in which the plastic material that makes up your part is injected through a hole in the mold. This allows for the creation of complex parts with a lot of internal structure that would be difficult to make otherwise. The process works by using a high-temperature injection machine to melt the plastic and then inject it through the hole. The resulting shape is then solidified into the correct part by cooling and sizing it in the mold. The technique can also be used to create custom parts with unique shapes that could not otherwise be created using traditional injection molding techniques.
PEEK, or Polyether ether ketone, is an extremely versatile and durable polymer that’s perfect for injection molding. This is primarily due to its excellent mechanical properties, which allow it to outperform metals in many applications. PEEK also has other important characteristics, such as its ability to withstand gamma radiation exposure and sterilization processes, making it ideal for manufacturing medical devices. PEEK can be found in a variety of applications, from aerospace and automotive components to machinery parts.
When it comes to processing PEEK, there are some extra requirements that go beyond what standard injection molding equipment requires. This includes having a good temperature control system and a dry raw material that’s free of contaminants. PEEK’s crystalline structure can be affected by water and other chemical solvents, which can affect the finished product. Therefore, it’s important to work with a supplier that has experience working with this material.
For proper injection of peek, it’s important to maintain a consistent temperature during the molding cycle. If the temperature changes, it will lead to an uneven distribution of the molten material throughout the cavity, which can cause defects in the final product. For this reason, it’s important to use a thermocouple that can monitor and control the temperature during the molding cycle.
It’s also necessary to ensure that the mold is properly cleaned. During the injection process, residues from lower melting plastics can degrade and leave dark specks on the molded product. This can result in a bad appearance and lower quality. This can be avoided by ensuring that the injection machine is dedicated to PEEK only, and by regularly cleaning the screw and barrel.
Injection molding is one of the most effective ways to mass-produce plastics, and it’s used in a wide variety of industrial applications. When it’s done right, it can help reduce costs, improve part quality, and speed up production. Injection molding is a complicated process, and it’s important to follow injection molding design guidelines to promote manufacturability and reduce defects. To learn more, check out Fictiv’s Injection Molding Design Guide. It’s an excellent resource for any plastic manufacturer looking to maximize efficiency and profit. With the right design, you can achieve a great part that meets or exceeds industry standards. This will keep you happy with your results and keep your customers satisfied.