Titanium fan anti-corrosion fan chemical centrifugal fan, the use of new material titanium as a medium to use titanium amount of good anti-corrosion performance, not affected by the atmosphere and sea water. At normal temperature, it will not be corroded by dilute hydrochloric acid, dilute sulfuric acid, nitric acid or dilute alkali solution, surface treatment techniques such as oxidation, electroplating, plasma spraying, ion nitriding, ion implantation and laser treatment have been studied, the desired corrosion resistance was achieved. The Titanium fan aims at the needs of metal materials in the production of sulfuric acid, hydrochloric acid, methylamine solution, high temperature wet chlorine gas and high temperature chloride, etc. , a series of corrosion-resistant titanium alloys, such as ti-mo, ti-pd, ti-mo-ni and Ti-32 mo alloy, have been developed, titanium-0.3 mo-0.8 ni alloy or PD alloy-0.2 PD alloy were used in the environment where crevice corrosion or pitting corrosion often occurred. The heat resistance of titanium fan is good. The new type of titanium alloy fan can be used for a long time at 600 °C or higher. Titanium has good heat resistance, melting point up to 1668 degrees Celsius. At room temperature, titanium can lie unscathed in a variety of strong acid and alkali solutions, and aqua regia can not corrode it. It is three times stronger than stainless steel. Titanium fan can be widely used in metallurgy, petrochemical, chlor-alkali, paper, salt, medicine and other industries.