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Why do stainless steel chain hoists also rust

releaseTime:2024-05-28 09:22:48source:Mu TiannumberOfPageViews:0

Stainless steel chain hoists may also experience rusting, which is mainly attributed to several factors:

Alloy element content:

The reason why stainless steel has corrosion resistance is mainly due to the addition of alloying elements such as chromium (Cr) and nickel (Ni). However, the content of alloying elements varies among different types and grades of stainless steel, which directly affects its corrosion resistance. If the content of alloying elements is insufficient or unevenly distributed, the rust prevention ability of stainless steel will be weakened.

Environmental factors:

Stainless steel is prone to chemical corrosion in specific environments, such as those containing high concentrations of chloride ions (such as seawater or saline environments), acidic or alkaline substances. These chemicals in the environment will react with the alloying elements on the surface of stainless steel, damaging its protective layer and leading to corrosion.

Mechanical damage:

During use, stainless steel chain hoists may suffer mechanical damage such as scratches, impacts, etc. These damages can damage the protective film on the surface of stainless steel, making it more susceptible to corrosion.

Improper cleaning and maintenance:

If the stainless steel chain hoist is not cleaned and maintained for a long time, impurities such as dirt and grease may accumulate on the surface. These impurities will accelerate the corrosion process of stainless steel. In addition, incorrect cleaning methods, such as using highly corrosive cleaning agents such as strong acids and bases, may also damage the surface of stainless steel and reduce its corrosion resistance.

Electrochemical corrosion:

Stainless steel is composed of different crystal structures and contains impurities. The electrode potentials of these components are different when there is an electrolyte solution (such as CO2 dissolved) When SO2 (water) is present, a micro battery will be formed, causing electrochemical corrosion of the steel. This type of corrosion is usually more severe than chemical corrosion.

To reduce the risk of rust on stainless steel chain hoists, the following measures can be taken:

Choose the appropriate type and grade of stainless steel to ensure that its alloy element content meets the requirements.

Regularly check the operating environment of the equipment and avoid using it in highly corrosive environments.

Pay attention to the mechanical protection of the equipment to avoid scratches, impacts, and other damages.

Regularly clean and maintain the equipment to keep its surface clean and smooth.

Use the correct cleaning method and avoid using highly corrosive cleaning agents.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoistwire rope electric hoistHand chain hoist, lever hoist, pneumatic hoist and other lifting equipment    

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