PEEK is a high-performance engineering plastic that is used for injection molding. This material has great tensile strength, chemical resistance, and thermal stability. It can be molded into small parts with tight tolerances and complex geometries. Moreover, it is also a good replacement for metals in some special applications. It is also easy to work with, and its dimensional stability is good. In addition, it can be reinforced with glass or carbon to make it even stronger and harder. It is also flame resistant and generates low levels of smoke or toxic gases in fire conditions.
The crystalline structure of peek makes it strong and durable, so it can resist many types of damage. For example, it can withstand temperatures up to 480oF. Moreover, it has excellent mechanical properties that make it ideal for use in medical devices. Surgical instruments made from this material can be lighter than those made from metal. This can help reduce surgeon fatigue during procedures and protect patients from injuries related to repetitive stress. In addition, it can be sterilized using radiation without affecting its chemical or physical integrity.
Because of these benefits, peek is a popular choice for medical devices and other high-performance applications. However, it can be challenging to mold PEEK due to its high melting point and the need for precise process control. If you want to make successful PEEK injection molded products, it is important to know how to avoid common problems and achieve the best results possible. This article outlines five tips that can help you optimize the injection molding process and create high-quality, durable parts.
One of the most common issues with injection molding is poor surface quality. This can be caused by a number of factors, including improper injection temperature and pressure. To prevent this problem, it is essential to select the correct injection equipment and ensure that the temperature is accurate. In addition, it is important to minimize injection pressure and keep the nozzle at a distance from the mold. This will help you avoid voids, sink marks, and other defects.
Another issue with injection molding is shrinkage. This can be reduced by increasing the injection temperature or adding fillers. However, you should note that a high volume of fillers can cause part warping. To prevent this, you should choose a filler that is compatible with your application and ensure that the nozzle is kept at a distance from the mold.
Lastly, it is important to keep the nozzle and mold at the right temperature throughout the injection process. This will ensure that the molten peek does not solidify too quickly, which can lead to a loss of accuracy and a reduction in the mechanical properties of the finished product.
Peek is a popular polymer that has many advantages over traditional materials. It is an excellent choice for injection molded medical devices. Its superior mechanical properties, good machinability, and low density make it an excellent choice for high-performance applications. It can be used to replace metal components in medical devices, automotive manufacturing, and electrical and electronic equipment. It is also easy to sterilize and can withstand a wide range of environmental conditions. peek injection