The main morphological manifestations and main reasons of Renqiu sprocket corrosion

Corrosion and rust are the surface damage phenomena caused by the chemical reaction between the metal surface and the surrounding environment. Corrosion is divided into stains, moments and pits according to different degrees.

1. Color spots: dots or strips. The color is light gray or reddish brown without depth.

2. Etching: It is dot, strip or flake, gray-black in color, with a slight touch.

3. Erosion pits: they are dots, strips or flakes, reddish-brown or black in color, with obvious hand feeling.

The main cause of sprocket rust

1. The price of selected materials affects the quality of steel. 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.

2. The quality of the anti-rust lubricating oil, cleaning kerosene and other products used by the enterprise in production does not meet the requirements of the technological regulations.

3. During the production process, the company did not strictly follow the cleaning and rust prevention regulations and the oil seal and rust prevention packaging requirements for the parts in the processing process and the finished products after assembly. Such as the chain contact with corrosive liquid or gas.

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 is no shortage of phenomena such as violation of anti-rust regulations by production workers

Corrosion will cause the sprocket to lose its original luster, strength, toughness, etc. We need to operate correctly according to the characteristics of the sprocket during the production and storage process to avoid the sprocket from rusting.

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