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Shanxi Zhonglifalan Co., Ltd. is located in Dingxiang County, Xinzhou City, Shanxi Province, 10 kilometers from Wutai Mountain Airport. Established in 1997, with a registered capital of 100 million yuan, it is a high-tech enterprise specializing in the production of various alloy forgings and equipment structural parts. -
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The company has an annual production capacity of 50,000 tons. It is capable of forging large forgings with a diameter of 8 meters, a single-piece weight of 50 tons, and a radial height of 1.3 meters, as well as ultra-large metal thin-walled shells with a spin-forming wall thickness >2mm, a diameter of 2 meters, and a length of 4 meters.
What are the reasons for flange rusting and failure of rust prevention?
Published Time:
2025-08-19
I. Causes of Flange Rust
The main reason for flange rust is the chemical reaction that occurs when its material comes into contact with oxygen and water in the environment. Specifically, the following factors may be involved:
1. High environmental humidity: In humid environments, metal is prone to contact with moisture, which accelerates the oxidation reaction and leads to rust.
2. Air pollution: Industrial emissions, road dust, etc., may contain corrosive substances. These substances deposit on the flange surface and react chemically with the metal, leading to rust.
3. Lack of rust prevention measures: If newly installed flanges are not treated for rust prevention or if the rust prevention coating is damaged during transportation or storage, they may be exposed to the air and rust.
II. Reasons for Rust Prevention Failure
Flange rust prevention may fail due to the following reasons:
1. Low-quality rust inhibitors or coating materials are used, which cannot effectively protect the metal from oxidation.
2. Improper rust prevention treatment, such as coatings that are too thin or too thick, or uneven coatings, may affect the rust prevention effect.
3. Environmental factors, such as high temperature, high humidity, and high pollution environments, will accelerate the failure of rust prevention coatings.
III. Countermeasures
In response to the problems of flange rust and rust prevention failure, the following measures can be taken:
1. Choose high-quality rust inhibitors and coating materials to ensure their adaptability to the environment.
2. Perform correct rust prevention treatment on the flange, such as ensuring that the coating is uniform and of moderate thickness.
3. Avoid damage or contamination to the flange surface during storage and transportation.
4. In high humidity and high pollution environments, regularly check the rust prevention status of the flange. If rust or coating damage is found, take timely measures.
5. Consider using more advanced rust prevention technologies, such as using stainless steel or other composite materials with self-lubricating functions, to fundamentally improve the corrosion resistance of the flange.
IV. Summary
The problem of flange rust and rust prevention failure is a common industrial problem, and its causes mainly include environmental factors, material factors, and human factors. To solve this problem, we need to comprehensively consider material selection, treatment, storage, and use, and take effective rust prevention measures. Only in this way can we ensure that the flange maintains a good working condition for a long time in harsh environments.
Keywords:
Zhongli
Flange
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