PEEK material is called PEEK material in Chinese, which is a kind of super high temperature resistant special engineering material. In general, it can be used normally under 260 ℃ and 300 ℃ in a short time. It can still maintain excellent mechanical function. As a new type of semi crystalline aromatic plastic engineering plastics, peek has excellent physical and mechanical properties. It can replace traditional materials such as metals and ceramics in many special fields. It has made outstanding contributions in reducing mass and improving performance, and has become one of the most popular high-performance engineering plastics. PEEK material has outstanding high temperature resistance, which can be used at 260 ℃ for a long time, and its instantaneous service temperature can reach 300 ℃; its rigidity, dimensional stability and linear expansion coefficient are small, which are close to aluminum material; PEEK material has good chemical stability, strong corrosion resistance to acid, alkali and almost all organic solvents, and flame retardant, radiation resistance and other properties; PEEK material is resistant to heat and radiation In addition, peek materials are easy to be extruded and molded by injection molding. With some excellent comprehensive properties, peek materials are widely used in aerospace, machinery, petroleum, chemical, nuclear power, rail transit and other fields.