Imports bearings the causes and prevention of corrosion

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The causes and prevention of corrosion of imported bearings imported bearing corrosion is caused by a variety of internal and external factors, summed up:
1, the metal surface finish (oxygen concentration cell corrosion).
2, the metal material itself, the chemical c omposition and structure.
3, in contact with the metal surface of the solution composition and the pH value;grinding spindle
4, the ambient temperature and humidity.
5, and the metal surface in contact with a variety of environmental media.
6, another human sweat also lead bearing corrosion reasons, its pH value is 5 to 6. So, in order to prevent corrosion caused by hand sweat, installation and production personnel should wear gloves, do not casually hand contact with imported bearings.
Coated with anti-rust oil to prevent skf bearing rust
1, soak method: some small imported bearings soaked in rust oil, the oil film thickness control rust oil temperature or viscosity to achieve. Its surface adhesion layer antirust oil.
Brushing method: Brush attention to evenly spread on the surface of imported bearings, do not produce accumulation, we should pay attention coated to prevent leakage.
Spray method: some large rust-proof material not suitable for oiled soak method generally about 0.7Mpa pressure filtered compressed air in place of the air cleaning spray. Spray method applies the solvent dilution rust oil or a thin layer of anti-rust oil. Such methods must be adopted to improve fire safety and labor protection measures.
The skf bearing surface rust pretreatment method:
1, surface cleaning: cleaning must be combined imports of the nature of the bearing surface and the prevailing conditions. Commonly used method of solvent cleaning method, cleaning mechanical cleaning and chemical treatment method.thin section ball bearing
2, the surface is dry cleaning the available filter clean dry compressed air. Or using a drier and dried to a temperature of 120 ~ 170 ℃, and finally with dry with a clean gauze.