Ways to prevent impeller wear
Release time:
2022-04-26
The wear of the fan impeller is related to the composition, particle size, concentration, shape, impact speed, impact angle, chemical composition, properties, temperature and humidity of the abrasive. The unevenness of the gas flow inside the impeller accelerates the wear.
The wear of the fan impeller is related to the composition, particle size, concentration, shape, impact speed, impact angle, chemical composition, properties, temperature and humidity of the abrasive. The unevenness of the gas flow inside the impeller accelerates the wear.
As a measure to prevent impeller wear:
One is to reduce the dust and corrosive gases entering the fan, for which the fan operation system must be transformed;
The second is to try to make the local wear tend to wear evenly, which requires improving the wear resistance of the impeller.
If you want to improve the wear resistance of the impeller, you can use materials with high hardness and good wear resistance. This not only brings difficulties to the impeller manufacturing process, but is also unreasonable from an economic point of view. Therefore, it is an economical and reasonable solution to improve the surface quality of the fan impeller, surfacing or spray welding (spraying) a wear-resistant layer on the seriously worn parts of the impeller, and adding a layer of lining plate to the blade to achieve wear resistance.
Apply anti-wear coating
Impeller's main anti-wear coatings include resin anti-corrosion and wear-resistant coatings, rubber anti-corrosion and wear-resistant coatings, quartz water glass and ceramic anti-corrosion and wear-resistant materials.
890 Wear-Resistant Compound is a ceramic composite for repairing and protecting abraded metal surfaces. This compound has good wear resistance and adhesion to materials such as impellers. However, the coating thickness of 890 wear-resistant compounds must reach 6mm or thicker, which is not suitable for some narrow runners or rotors with strict start-up requirements. Similarly, adding a layer of wear-resistant lining plate to the impeller blade to solve the wear of the fan impeller also has such problems.
Through the above introduction and analysis of the impeller, hope it helps you.
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Hans Wang
Jacinda Lee
Sharon Zhao
David Yang
Binzhou Zeli Precision Metal Technology
Address: Wudi County Industrial Park, Xinghu 3rd Road, South Development 5th Road East
Tel：+86-543-6360571
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