The cause of bearing rust corrosion

Bearing rust corrosion caused by many reasons, the main reasons are the following: 1, the part of the enterprise's poor environmental conditions, harmful content is high in the air, flow field is too small, it is difficult to effectively antirust processing. Coupled with the hot weather, the production workers in violation of the phenomenon such as antirust procedures were there. 2, some enterprises in the process of production of bearing no rust cleaning procedures and oil seal antirust packing in strict accordance with the requirements of bearing parts in the process of machining and assembly after antirust processing of bearing products. Such as ring in the process of turnover turnover time is too long, outer cylindrical contact corrosive liquids or gases, etc. 3, some enterprises in the production of antirust oil, cleaning products such as kerosene used quality can not reach the requirements of the technology. 4, some enterprises anti-rust paper, nylon paper ( Bag) And a bearing packaging materials such as plastic cylinder does not accord with the requirement of rolling bearing oil seal rustproof packaging is one of corrosion factors. 5, due to a bearing steel price drop down again, resulting in bearing steel quality decline gradually. Such as non-metallic impurities content in steel on the high side, The increase of sulfur content in the steel material fall in corrosion resistance) , metallurgical structure deviation, etc. Is now used in bearing steel production enterprise source is miscellaneous, steel quality fish dragon fraud. 6, some enterprises bearing ring of turning small allowance and allowance of grinding, the oxide coating on the cylindrical, failed to completely remove decarburization layer is also one of the reasons. 7. Sweat is a colorless lit or pale yellow with a salty weakly acidic liquid. Its pH value of 5 ~ 6. In addition to rich in sodium, potassium, calcium, magnesium salt; Also rich in a handful of urea, lactic acid, citric acid and other organic acids. When touch sweat and metal; In metal appearance of a layer of sweat membrane; Sweat membrane of metal from electrochemical effect; The corrosion of metal.