How to prevent bearing paint rust?

Update:06-05-2021
Summary:

Prevention of paint rust: The characteristic of paint r […]

Prevention of paint rust: The characteristic of paint rust is in a sealed motor. At first the motor sounds good, but after a period of storage, the motor becomes very abnormal sound, removing the severe rust of the bearing. Many manufacturers will be regarded as the problem of the front bearing, the main problem is that the insulating paint volatile acid at a certain temperature, humidity, metal corrosion and protection, the formation of corrosive substances, channel sliding bearings cause corrosion damage.
Sliding bearing life is closely related to manufacturing, assembly, and use. Every link must be used to make the best bearing in the country, thereby prolonging the life of the bearing.
1. In the process of producing coating machine bearings, some companies did not strictly follow the cleaning and anti-rust regulations and oil seal anti-rust packaging requirements for coating machine bearing parts during processing and coating machine bearing finished products after assembly. . If the turnover time of the ferrule is too long during the turnover process, the outer circle of the outer ring is in contact with corrosive liquid or gas, etc.
2. The quality of anti-rust lubricating oil, cleaning kerosene and other products used in production by some enterprises cannot meet the requirements of process technology regulations.
3. As the price of coating machine bearing steel dropped again and again, the material of coating machine bearing steel gradually declined. For example, the content of non-metallic impurities in the steel is too high (the increase of the sulfur content in the steel reduces the corrosion resistance of the material itself), the deviation of the metallographic structure, etc. The coating machine bearing steel used by the manufacturing enterprises is of mixed sources, and the quality of the steel is a mixed bag.
4. Some enterprises have poor environmental conditions, high levels of harmful substances in the air, and too small a turnover space, which makes it difficult to carry out effective anti-rust treatment. Coupled with the hot weather, there are also phenomena such as violations of anti-rust regulations by production workers.
5. Some companies' anti-rust paper, nylon paper (bag) and plastic tube and other coating machine sliding bearing packaging materials that do not meet the requirements of rolling coating machine bearing oil seal anti-rust packaging are also one of the factors that cause corrosion.
6. The turning allowance and grinding allowance of the sliding bearing ring of the coating machine of some enterprises are too small, and the oxide scale and decarburization layer on the outer circle cannot be completely removed is also one of the reasons.

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