The main method of bearing to prevent the metal rust

The main method of bearing to prevent the metal rust ( A) Select corrosion resistant materials are mainly non-ferrous metal alloy and stainless steel. （ 2) Prefabricated metal bearing metal surface ( Alloy) Black conversion film: ( Blue) , phosphating, anodic oxidation; Surface alloying nitriding, zinc impregnation, siliconizing, aluminized, chromizing, etc; Metal coating: spray plating metal, metal, hot dip plating, electroless plating, etc. ; Non-metallic coating, enamel, ceramics, paint, plastic, rubber, etc. ; Coating antirust materials: anti-rust water, cutting fluid, the gas phase inhibitor, can peel plastic, rust-proof oil, antirust grease, etc. （ 3) Cathodic protection with sacrificial anode and cathodic protection of electrochemical method. Magnesium in sea water, as well as its block as anode with associated steel plate, make steel plate with current cathodic protection. Underground pipelines and chemical equipment, but also outside another anode and current steel ( The cathode) Be protected. （ 4) Dehumidifier and humidification are adopted to decrease the temperature, relative humidity control in less than 60 ~ 70%, metal corrosion slow; Relative humidity under 60% when, non-metallic not gone mouldy; Nitrogen charging or vacuum packing seal can delay the rust; Packing internal corrosion inhibitor; Iron and steel products in electric furnace heating ( High temperature) , form a protective atmosphere in the furnace or home heating. To sum up, a lot of methods to prevent metal corrosion, many factors should be considered after the judgment to choose, such as: parts of the work environment, components of the service condition, the production of security, and degree of pollution to the environment, the manufacturing cost, etc. Bearings, comfortable and durable, )