PEEK blades (automotive vacuum pumps)

1. Overview:

PEEK is a high temperature resistant thermoplastic with a high glass transition temperature (143°C) and melting point (334°C). Its load thermal deformation temperature is as high as 316°C (30% glass fiber or carbon fiber reinforced grades).

2. Detailed description:

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 300°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

PEEK has the heat resistance, chemical stability and molding processability of thermoplastics. The long-term use temperature of PEEK is about 260-280℃, the short-term use temperature can reach 330℃, and it can withstand high pressure up to 30MPa, making it a good material for high-temperature sealing rings. PEEK products are suitable for use in various harsh working conditions. PEEK also has excellent properties such as good self-lubrication, easy processing, stable insulation, and hydrolysis resistance, making it widely used in aerospace, automobile manufacturing, electronics and electrical, medical and food processing. Due to the unique performance advantages of PEEK materials, PEEK products can be widely used in many fields such as petrochemicals, electronics and electrical, instrumentation, machinery and automobiles, medical care, aerospace, etc.