FFU centrifugal fan impeller in the use of its corrosion and wear the main fan medium containing corrosive gas-induced corrosion and stress corrosion, FFU centrifugal fan impeller due to its transmission medium caused by the different types of corrosion .
FFU centrifugal fan impeller in the production process will be effective selection of its strong corrosion-resistant stainless steel impeller material, the use of the impeller surface will be coated or sprayed coating and improve the quality of the impeller to address the erosion of wear and tear problem.
FFU Centrifugal fan impeller corrosion resistant materials used
FFU centrifugal fan impeller containing CO2 and other media with corrosive gases and fumes when the main use of Cr13 stainless steel, but should pay attention to stress corrosion, corrosion resistance and require high speed fan impeller is widely used martensitic precipitation of stainless steel , Such as 0Cr17Ni4Cu4Nb and FV520B and so on.
FFU centrifugal fan impeller corrosion coating
Amorphous nickel-phosphorus (Ni-P) alloy is a more successful surface anti-corrosion coating method in recent years. Due to the ideal non-crystalline structure and coating alloy characteristics, to avoid the grain boundary corrosion and grain boundary defects, coating hardness HRC50 ~ 70 Ni-P alloy coating corrosion resistance, wear resistance and hydrochloric acid, sulfuric acid, phosphoric acid and caustic soda Corrosion resistance and strong.