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Analysis on the avoidance method and cause of the corrosion of the painful bearing
Source: China Bearing Network Time: 2013-07-20
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Pre-disposal method for rusting the surface of the bearing:
1. The surface is dry and clean. It can be dried by filtered dry compressed air. It may be dried with a drier at a temperature of 120~170 °C; finally, it is dried with a clean gauze.
2. Appearance hygiene: It is necessary to remove the nature of the imported bearing appearance and the conditions at the time. Commonly used methods are solvent removal method, mechanical hygiene method and chemical treatment hygiene method.
The corrosion of the painful bearing is caused by various connotations and external factors; the main ones are:
1, metal appearance smoothness (oxygen concentration difference battery corrosion).
2. The chemical composition and layout of the metal material itself.
3, another person's sweat is also the cause of bearing corrosion; its pH is 5 ~ 6.
4. The composition of the solution and the pH value of the touch with the metal surface,
5, the ambient temperature and humidity. So in order to avoid rust caused by hand sweat; equipment and production personnel should wear gloves; do not touch the imported bearings with your hands.
6, a variety of environmental media touched by the metal appearance.
Apply anti-rust oil to avoid rusting of bearing. 1. Soaking method: Some small imported bearings are selected to be immersed in anti-rust grease; the thickness of oil film can be reached by controlling the temperature or viscosity of anti-rust grease. The method of anti-rust grease.
2, brushing method: brushing when paying attention to uniform coating on the appearance of imported bearings; do not pile up; also pay attention to avoid leakage coating.
3. Spray method: Some large-scale anti-rust materials are not suitable for oiling by immersion method; usually, the compressed air with a pressure of about 0.77MPa is sprayed locally in the air. This method is necessary to select a perfect fire prevention and labor protection method. 4. Spray method is suitable for solvent dilution type antirust oil or thin layer antirust oil.
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