PEEK star wheel (single screw compressor)

PEEK star wheel

As one of the core components of a single screw compressor, the star wheel is mainly used for sealing. PEEK star wheels are made of PEEK resin and high-strength wear-resistant carbon fiber. They solve the problem that pure PEEK and other polyester materials are prone to deformation and wear under high temperature and high pressure. They are the mainstream star wheel material on the market.

The single screw PEEK star wheel can work under high pressure and is suitable for high exhaust pressure occasions. Low vibration and low noise are of great significance to aerospace, and the single screw rotor and the star wheel are contact seals, which makes it easier to achieve oil-free at low speed.

If steel star wheels are used, a large gap must be left between the star wheels and the screw due to the large expansion coefficient and volume of steel, which will not only cause more leakage and low efficiency, but also easily cause serious failures due to seizure. If PEEK modified star wheels are used, which are resistant to high temperatures and have a low linear expansion coefficient, they can not only improve efficiency, but also reduce maintenance frequency, labor intensity of maintenance personnel and maintenance costs.

Advantages of PEEK star wheel:

1. PEEK star wheel has low noise and small vibration. Because the single screw compressor has a reasonable structure and ideal force balance, it has small vibration. In addition, the compression chamber is water-lubricated and there is no speed-increasing gear, so the noise is also small.

2. PEEK has high strength, good toughness and good impact resistance. Since the radial and axial forces on the screw are automatically balanced by gas force, the planetary gear needs to bear the gas force, which requires the planetary gear to have sufficient strength and rigidity;

3. PEEK is wear-resistant and self-lubricating, and can maintain high wear resistance and low friction coefficient at 250 ℃.

4. PEEK has good dimensional stability, better air tightness, low thermal expansion coefficient, and is not easy to bite.

5. PEEK star wheel has a longer service life and can reduce the frequency of maintenance and operation. ;

6. PEEK has low moisture absorption rate and good resistance to moisture and heat. It can still maintain good mechanical properties under high temperature and high humidity. In addition, it has outstanding hydrolysis resistance and is resistant to steam, water and seawater.

Jiangsu Junhua Shares

1. Jiangsu Junhua has been deeply engaged in the field of PEEK materials for 18 years and has formed a complete industrial chain with PEEK raw material resin polymerization, modified granulation, injection molding and machining of finished parts, and continuous extrusion molding of profiles such as plates, rods, and segments.

2. Jiangsu Junhua has dozens of commonly used and customized PEEK grades for customers to choose from, such as mechanical performance requirements, operating temperature, dielectric constant, etc. We can recommend suitable PEEK and its modifications or other high-performance engineering plastics for you.

3. Rich processing experience can ensure the stable quality of PEEK star wheel products, and the accuracy and efficiency meet the requirements.

4. Junhua strictly implements ISO9001:2008 quality management system and conducts strict quality control on each batch of products.

5. Junhua implements an improvement proposal system with full participation, promotes the PDCA cycle, records measurements for each batch of products, and continuously optimizes product design or processing solutions based on the experience of similar customer cases. It provides customers with better PEEK product solutions through target achievement rate, influencing factor analysis, and improvement plan verification.