Junta de válvula PEEK
1. Overview of PEEK sealing ring/PEEK sealing ring
PEEK sealing rings have good performance, stable dimensions, customizable specifications, high temperature resistance, wear resistance, and strong mechanical properties. High temperature resistant PEEK has a high glass transition temperature and melting point (334°C), which is one of the reasons why it can be reliably used in applications requiring heat resistance. Its load heat deformation temperature is as high as 316°C, and the continuous use temperature is 260°C. PEEK has comprehensive properties that other general plastics cannot match in high-performance polymers, and has performance suitable for various harsh environments. It has been successfully and widely used in various industries such as aerospace, automobiles, electronic semiconductors, and electromechanical, which have relatively demanding occasions. It is a material for users to develop new products and improve product service life and reliability.
2. Main characteristics and advantages of PEEK
1: High temperature resistance The long-term use temperature of the US UL certification is 260°C. Even when the temperature reaches 316°C, it can still maintain good mechanical properties.
2: Wear resistance In many extremely harsh application environments such as high temperature, high load, and strong corrosion, PEEK polymers and their composite materials have good wear resistance.
3: Self-lubrication has a lower friction coefficient, can achieve oil-free lubrication, and can work for a long time in media such as oil, water, steam, weak acid and alkali.
4: Corrosion resistance : Insoluble in common solvents, and has good corrosion resistance to various organic and inorganic chemical reagents.
5: High strength : It has good mechanical strength among plastics. It also has high rigidity and surface hardness.
6: Easy to process: Parts can be directly processed by injection molding process. Post-processing such as turning, milling, drilling, tapping, bonding and ultrasonic welding can be performed.
7: Hydrolysis resistance: Even when immersed in steam at a temperature exceeding 250°C or in high-pressure water, PEEK products can still work continuously for thousands of hours without significant performance degradation.
8: Flame retardancy Without using additives, the flammability rating of the 1.45mm thick PEEK sample is UL94V-0.
9: Low smoke and non-toxic The amount of smoke and toxic gas during combustion is extremely low.
10: Electrical properties can maintain stable and excellent electrical properties within a wide temperature and frequency range.
11: Radiation resistance: It has strong resistance to high-dose gamma-ray radiation, and its mechanical properties can be fully retained, so it can be used as radiation-resistant parts.
12: Dimensional stability
