Avoid High-Temperature Fan Impeller Deformation

High-temperature fan impeller deformation can be a real headache. However, it’s not purely a quality issue. To avoid pitfalls, remember these four essentials:

1. Material Matters
   Use high-strength, heat-resistant stainless steel or other special alloys. Ordinary carbon steel loses strength rapidly at high temperatures.
2. Heat Treatment is Crucial
   After the impeller is finished, perform high-temperature annealing to release internal stresses. Without it, thermal expansion and contraction can directly cause deformation.
3. Scientific Structural Design
   Inferior impellers often have thin blades and poorly designed angles. Under high temperature and high speed, uneven forces can cause bending. Professional designs use thicker blades and optimized flow angles to control vibration.
4. Match the Operating Conditions
   In high-temperature, dusty, or corrosive environments, impellers require wear-resistant and corrosion-proof treatments, such as overlay welding. Otherwise, wear and failure risks increase significantly.