Wuxi Dongao Nonferrous Casting Co., Ltd.
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Impeller anti-corrosion measures
- Jan 22, 2017 -

The abrasion resistance of materials

Austenitic stainless steel (1Cr18Ni9Ti) low yield strength, not suitable for manufacturing high speed impeller, applies as a general low-speed impeller fan anti-corrosion materials. Containing CO2 and other corrosive gases and smoke when major Cr13 stainless steel, but stress corrosion, require corrosion resistance high speed fan impeller stainless Martensitic precipitation is widely used, such as 0Cr17Ni4Cu4Nb and FV520B, and so on.

Impellers corrosion resistant layer coating

Amorphous NI-p (Ni-P) alloys are a surface anti-corrosion coating method is more successful in recent years. Due to the ideal structure and coating of amorphous alloy, intergranular corrosion and intergranular pitfalls to avoid, HRC50~70 of hardness corrosion resistance of NI-p alloy coating, resistant to wear and corrosion resistance to hydrochloric acid, sulfuric acid, phosphoric acid and caustic soda is strong.

Fan impeller surface coating of amorphous nickel-phosphorus (Ni-P) as a good resistance to corrosion, alloy technology, our company has been successfully used in maanshan iron and steel company and Wuhan iron and steel company on the fan, the effect is good.