The fan manufacturer tells you how to maintain and care for worn-out fans.
Category:
Industry Trends
Release time:
2021-03-09
As anyone in the fan industry knows, fans are common industrial machines. When using axial-flow fans, the impeller will experience wear after a period of use. The degree of wear on axial-flow fan blades is influenced by factors such as the composition of the gas, particle size, concentration, shape, impact velocity, impact angle, chemical composition, performance, temperature, and humidity. Non-uniform airflow can accelerate blade wear. To prevent blade wear, it’s essential to reduce the amount of dust and corrosive gases entering the fan and to modify the fan’s structural design accordingly. Second, efforts should be made to ensure that localized wear becomes more evenly distributed—this requires enhancing the wear resistance of the impeller. So how can we effectively prevent impeller wear? Depending on the specific type of wear, preventive measures can be categorized as follows:
1. Treat the blade surface
The blade surface can be treated by carburizing, plasma cladding, hardmetal spraying, or bonding ceramic tiles. A common advantage of these methods is that they increase the hardness of the blade surface, thereby enhancing its wear resistance to a certain extent. However, each method has its own drawbacks. Carburizing is a technically challenging process; during actual carburization, the location and thickness of the carburized layer depend on the blade’s thickness, wear condition, and the specific carburizing process used. Plasma cladding often results in significant blade deformation, and repeated welding can lead to cracks on the blade surface, increasing the risk of accidents. When hardmetal spraying is employed, it is difficult to achieve an optimal coating thickness. Bonding ceramic tiles offers relatively good performance, but the cost is high.
2. Apply a wear-resistant coating to the surface.
This method is simple to apply and low in cost, but the coating wears out quickly—lasting only about 3 to 5 months per use.
3. Improve blade structure
There are several methods to reduce impeller wear to a certain extent, including machining the blade working surface into a serrated shape, converting hollow blades into solid blades, and welding wear-resistant blocks onto the blades.
4. Front-mounted anti-abrasion blade grid
After installing wear-resistant blade fences at areas prone to abrasion, particle flow toward the back disk and blade roots can be effectively blocked, transforming concentrated wear into uniform wear. This significantly enhances the wear resistance of the impeller and extends the service life of the fan.
5. Improve aerodynamic design
Select the shape of the fan inlet reasonably. During design, ensure that the relative velocity at the small inlet of the impeller is optimized, and minimize the fan’s rotational speed as much as possible. Choose an appropriate impeller passage geometry such that the radius of curvature of the blade’s profile gradually increases from the inlet to the outlet. This approach can reduce the likelihood of solid particles colliding with the blades.
Shenzhen Jiangshan Lai Electronic Technology Co., Ltd. was founded in 2005 in Shenzhen, China. It is a large-scale enterprise integrating customization, R&D, manufacturing, sales, and service of DC brushless motors, DC cooling fans, DC brushless fans, DC stand fans, boosted cooling fans, miniature cooling fans, DC cooling fans, DC blowers, and non-standard fans. Wholesale manufacturer of DC fans DC fan supplier. Our products are best-selling in Shenzhen, Guangzhou, Dongguan in Guangdong Province, as well as in Fujian, Zhejiang, and Jiangsu provinces.
Previous: Learn about DC brushless motor fans.
Next: A brief discussion on how to calculate the starting voltage for DC cooling fans?
Related News
On these busy days, I’m grateful to have you all fighting side by side! At this company dinner, everyone can put aside their daily hustle and enjoy some wonderful moments together. Let’s raise our glasses and chat freely—may delicious food and laughter accompany us as we strengthen our team spirit and build an even warmer sense of unity!
2025-08-27
The weekend team-building event by the seaside came to a perfect close! With sunny beaches and endless laughter, the team collaborated seamlessly in fun-filled games, relaxing their minds and bodies amid the soothing sound of ocean waves. Filled with renewed energy, we’re ready to join hands and tackle new challenges together!
2025-08-25
The newly installed display cabinets at the Huizhou company are gradually being filled up...
2025-08-21
Jiangshan Lai Electronics wishes you a happy Mid-Autumn Festival 2022!
On a day of blooming flowers and a full moon, When families are reunited in joy, May our land send you warm wishes for a happy Mid-Autumn Festival!
2022-09-10
Jiangshan wishes you a healthy and happy Dragon Boat Festival 2022!
The fragrant aroma of zong leaves fills the air on May 5th— May our heartfelt wishes bring you peace and well-being this Dragon Boat Festival! May our land send its best wishes for your health and happiness this Dragon Boat Festival 2022!
2022-06-03
May the land and rivers bring you joy as we celebrate Labor Day!
Salute to the workers! May our country and its people bring joy and happiness to all our customers and employees on this special occasion!
2022-05-01
Advantages and Applications of Oil-Bearing DC Fans
The pivot joint is fixed at the position of the motor stator base, ensuring an appropriate gap between the rotor and the stator. Of course, there must also be a clearance between the shaft core and the bearings to prevent the shaft core from becoming locked and thus unable to function. The stator structure of the motor—hereafter referred to as the "stator"—is designed in such a way that, once power is supplied, an induced magnetic field will be generated between the rotor and the stator. The control circuit then drives the electric fan motor into operation. Therefore, in the conventional fan motor design, as long as the fan rotor, the motor stator, and the drive circuit work together via the pivot joint between the shaft core and the bearings and through magnetic field induction, the motor can operate effectively.
2022-04-18
FRIENDLY LINK：
3rd Floor, 59 Yanshan Avenue, Yanchuan Community, Yanluo Street, Bao 'an District, Shenzhen
Which DC fan wholesale manufacturer is better, the recommended DC fan supplier rankings, the price of brushless DC fans, and what are the