![]() ![]() We use our PEEK machining experience to deliver the most cost effective method of manufacture. Here at Penta Precision, we are able to source PEEK competitively due to the high volume of PEEK components we manufacture offering you the very best value for money. However, it is 10-20 times the price of other common engineering plastics. PEEK is 53% harder than Acetal, has 63% greater tensile strength and is nearly 60% stiffer than Nylon 6. Industry Examples: Aerospace | Electronics | Military & defence | Medical | Chemical | Oil & gas | Food & packaging | Automotive Typical Components & Applications: Valves | Seals | Connectors | Surgical instruments | Medical implants | Bearings | Bushings | Washers | Blocks | Insulation | Scraper blades See the 'Finishing & Treatments' section for specific treatments to reduce the chances of stress affecting machining. This can be combatted by machining practices such as using very sharp tools, making sure we are using the right speeds and feeds, and being aware of how clamping/fixturing can affect the part. PEEK (Polyaryletheretherketone) is a rigid opaque (beige) engineering plastic known for its ability to operate at high temperatures, together with its exceptional chemical and wear resistance and dimensional stability.Ī high purity polymer, PEEK is a plastic composed of repeating monomers of two ether groups and a ketone group.Īlthough PEEK is very stable compared to most engineering plastics, stress in the material can have a major impact on machining causing such problems as: It is necessary to strictly follow the correct injection molding operation procedures to produce products, otherwise it is difficult to obtain products with good performance, and even damage the equipment.PEEK Guide: Properties, Applications and Design Considerations High-temperature special engineering plastics have been used in aerospace, military and other high-tech fields, and now they are more and more widely used. Shutdown and cleaning: After the processing is interrupted or the injection molding operation is completed, use suitable cleaning materials with thermal properties exceeding 370 ☌, and no plastic should be left in the barrel of the molding machine. The pressure required to reach the injection speed: it indicates the relative viscosity of the polymer and should also be monitored.ĥ. ![]() It is a volumetric indication of the amount of polymer injected into the mold and should be monitored continuously.ģ. Final residual position: This is the final position of the screw after the injection of the part is completed and the mold is completely filled. It is an important parameter and should be monitored continuously.Ģ. Injection time: This refers to the time required for the screw to move forward from the full injection position to the conversion position. ![]() The following three parameters can be monitored to ensure that the process is in control when injection molding acceptable parts:ġ. This ensures that both injection rate and fill time are controlled. Process control and monitoring: The molding process should be controlled by screw speed and position, not by pressure and time. The drying system should be able to maintain the recommended drying time in continuous operation, usually 6 hours under the above conditions.Ĥ. Material drying: The drying equipment must be able to reach a temperature of at least 120☌. If you need help with specific screw design and identifying a suitable screw manufacturer, you can contact Tianxie Industrial Co., Ltd. The recommended compression ratio is between 1:1 and 1.3:1. It is necessary to use a low compression ratio screw without a backflow device. Screw: The screw material has a temperature resistance of 400 degrees Celsius. Injection molding machine: It is recommended to use a modern reciprocating screw injection molding machine with closed-loop control capability and microprocessor control for injection molding of PEEK Tepla® T7200 engineering plastics.Ģ. There are high requirements for equipment, process control and operators.ġ. The injection molding characteristics of PEEK materials: high injection temperature, complex injection process, unstable product performance and other difficulties. Deep Mould can provide different shape of PEEK material part injection and mold toolings.īelow are some key points when you are ready for making the PEEK mold and PEEK part injection. ![]()
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