Wear and tear of the drive components in centrifugal corrosion-resistant fans is a common equipment issue, particularly in the bearing positions, bearing chambers and fan shaft bearing positions.
To address the aforementioned faults in centrifugal corrosion-resistant fans, traditional maintenance methods include surface treatment, thermal spraying and brush coating. However, these methods all have certain drawbacks:
The thermal stress caused by the high temperatures involved in welding repairs cannot be fully eliminated, which can easily lead to material damage, causing parts to bend or fracture;
Furthermore, electroplating is limited by coating thickness and is prone to flaking. Both of these methods involve repairing metal with metal, which does not alter the ‘hard-on-hard’ contact relationship. Under the combined action of various forces, wear will still occur.
To address these issues, most polymer composite materials are now used for repairs in centrifugal anti-corrosion fans. The Lianqiao technical system is widely applied, offering comprehensive properties such as exceptional adhesion and excellent compressive strength. It allows for disassembly and machining.
Centrifugal anti-corrosion fans are not affected by welding thermal stresses, and there are no restrictions on repair thickness. Furthermore, the metal materials used in centrifugal anti-corrosion fan products can absorb the impact and vibration of the equipment, thereby reducing the likelihood of wear.
In the context of fault repair and maintenance for centrifugal corrosion-resistant fans in China, traditional repair methods are gradually being replaced.
