High-Temperature Fan Impeller Deformation? Four Key Points to Avoid Pitfalls
Time:Jan 4th, 2026
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1. Material is Fundamental:
√ Correct Selection: Use high-strength, heat-resistant stainless steel and other special materials.
× Common Misconception: Ordinary carbon steel's strength decreases drastically at high temperatures.
2. Heat Treatment is Crucial:
√ Correct Practice: The impeller must undergo high-temperature annealing after completion to release internal stress.
× Common Misconception: Insufficient heat treatment leads to residual stress causing deformation during thermal expansion and contraction.
3. Scientific Structural Design is Essential:
√ Professional Design: Thickened blades, optimized guide angles, and effective vibration control.
× Poor Design: Thin blades and unreasonable angles result in uneven stress and easy bending under high temperature and high speed.
4. Adaptability to Operating Conditions is Indispensable:
√ Adequate Protection: Wear-resistant and corrosion-resistant treatment (such as welding overlay) is applied to high-temperature dust/corrosive environments.
× Insufficient Protection: Without special protection, wear and corrosion will rapidly accelerate failure.
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