Delixi bearing rust causes

Create Date: 2024-8-30 12:03:23|Source: Delixi

1. The instantaneous high temperature in the grinding process will make the surface of the workpiece reach a molten state, and the steel surface will react with the oxygen in the air to form a very thin (20-30nm) iron oxide film, if it is not completely removed in the future processing, even if the bearing is coated with anti-rust oil in the last process, after a period of time, the internal corrosion will appear on the surface of the bearing, which is the same as a rotten apple

Delixi bearing rust causes

2. When the bearing is refined or over-researched, it does not reach the specified accuracy, and a certain depth of pits is formed on the surface, and the corrosion particles or moisture in the air enter these pits at a glance, and the corrosion will appear after a certain time

3. Bearings need acid engraving, if the cleaning is not clean or the neutralization is incomplete, then the corrosion caused by this element is quite severe, which is why some bearings will corrode after 2 days of anti-rust oil

4. The method of applying anti-rust oil is unreasonable. One is to choose a rag that has been diffused with anti-rust oil, and roll the bearing on this cloth, the sweat on the hand, the corrosion on the rag and the bearing part where the anti-rust oil is not coated will cause corrosion, and the other is to stack the bearings together, and then spray the anti-rust oil with a sprayer, and it is difficult to be poured with anti-rust oil between the superimposed surface of the bearing and the bearing, so that the corrosion of contact with water and oxygen in the air for a long time will occur slowly.

5. The influence of humidity is very important. The critical humidity of steel is about 65%, but many small-scale manufacturers, most of the production environment humidity exceeds 65%, and some even reach 80%, which is very simple to make the bearing corroded.

6. When the bearing is cleaned with water, it will also cause severe corrosion of the bearing if it is not dehydrated or dehydrated is not clean or the air compressor is not dried to dry

7. When the bearing is assembled and inspected, the operator often directly touches the bearing parts with his hands, so that the sweat on his hands is all trapped on the surface of the bearing, so we often find that some bearing outer rings are corroded, while the inner ring and steel balls are not corroded at all.

8. In the coastal areas of Jiangsu and Zhejiang, many production units choose ventilation equipment to improve the production environment, but they do not know that this will be a large amount of moisture and salt in the air and the corrosive substances with salt fall to the surface of the bearing, and the "condensation" caused by the temperature drop of the product caused by ventilation will cause the bearing to rust

9. Because the price of bearing steel has dropped again and again, the material of bearing steel does not meet the requirements, such as the high content of non-metallic impurities in the steel (the increase in the sparse content of the steel reduces the anti-rust ability of the data itself)

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