Rust paint is the feature of in a sealed motor, the start motor sounds good, but in the warehouse for a period of time, motor become very abnormal sound, remove Full complement cylindrical roller bearings serious rust. Many manufacturers will be deemed to be the front bearing, the main problem is that the insulating paint volatile acid under certain temperature and humidity of metal corrosion and protection, the formation of corrosive substances, channel sliding bearing corrosion damage.Sliding bearing life is manufacturing, assembly, closely related to the use, must make every link, in order to make the country works the best bearing, so as to prolong the service life of bearing.
1, some enterprises in the process of production coating machine Spherical roller bearings no rust cleaning procedures and oil seal antirust packing in strict accordance with the requirements of the coating machine in the process of machining bearing parts and assembly after coating machine bearing products antirust processing. Such as ring in the process of turnover turnover time is too long, outer cylindrical contact corrosive liquids or gases, etc.
2, some enterprises in the production of antirust oil, cleaning products such as kerosene used quality can not reach the requirements of the technology.
3, due to a coating machine bearing steel price drop down again, resulting in coating machine bearing steel quality decline gradually. Such as non-metallic impurities content in steel on the high side, the increase of sulfur content in steel making material itself corrosion resistance drops), metallurgical structure deviation, etc. Is now used in the coating machine production enterprise source of bearing steel is miscellaneous, steel quality ichthyosaurs fraud.
4, 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.
5, some enterprises anti-rust paper, nylon paper (bag) and plastic tube coating machine, such as sliding bearing packing material is not accord with the requirement of roll coater bearing oil seal rustproof packaging is one of corrosion factors.
6, some enterprises coating machine sliding bearing ring turning small allowance and allowance of grinding, the oxide coating on the outer circle, failed to completely remove decarburization layer is also one of the reasons.
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