Techniques for Rust Prevention in Gear Processing: How to Extend the Lifespan of Gears?

Gears, as important components of mechanical transmission, often work in environments with high temperatures, high pressures, high speeds, and heavy loads. To ensure the lifespan and reliability of gears, rust prevention treatment is necessary. This article summarizes the following suggestions based on the research of rust prevention techniques for gear processing to help readers better protect gears and extend their service life.Gear processingThe study of rust prevention treatment techniques has led to the following suggestions to help readers better protect gears and extend their service life.

1. Choose suitable materials

The choice of material for gears has a decisive impact on rust prevention treatment. Common gear materials in the market include steel, copper, cast iron, and aluminum alloys. Steel is a commonly used material for manufacturing gears, known for its high strength and good fatigue resistance, but it is also prone to rust. Therefore, when choosing steel as the material for gears, appropriate rust-proof coatings should be considered for corrosion protection. Copper and cast iron materials generally have better corrosion resistance compared to steel, so they usually do not require rust prevention treatment. Additionally, aluminum alloy gears do not require extra rust prevention treatment due to their inherent rust resistance.

2. Perform surface treatment

The surface of gears is easily damaged during operation. Therefore, appropriate surface treatment during processing can not only improve the surface quality of gears but also increase their corrosion resistance. Common surface treatment methods include chrome plating, electro-galvanizing, hot-dip galvanizing, and phosphating.

3. Use suitable rust-proof coatings

Rust-proof coatings are an effective means to enhance the rust and corrosion resistance of gears. The types of rust-proof coatings widely used in the market include organic coatings, inorganic coatings, and coating composites. Among them, inorganic coatings are widely used because they can effectively prevent rust without damaging the performance of the gears themselves.

4. Properly control the working environment

When using gears, efforts should be made to avoid exposing them to high temperatures, high humidity, dusty, and corrosive gas environments, as these can accelerate the rusting process. Some common working environment impacts on gears are as follows:

(1) High temperature environment: This can lead to oxidation of the gear surface, reduced hardness, and accelerated wear of the tooth surface, so high temperatures should be avoided when using gears.

(2) Humid environment: This can cause moisture to accumulate on the gear surface, and in a file bag environment, it can lead to rusting of the gear surface, so it is important to ensure that the environment where gears are stored is dry.

(3) Dusty environment: Dust can enter the interior of the gears, damaging the surface and tooth surfaces, so the time gears work in dusty environments should be minimized.

(4) Corrosive gas environment: Such as acid mist, alkaline mist, etc., can corrode the gear surface and tooth surfaces, causing damage to the gears.

5. Conduct regular inspections

During the use of gears, various issues are bound to arise. Therefore, regularly checking the wear condition of gears and repairing them in a timely manner can effectively extend the service life of the gears. Regular inspections of gears mainly include the following aspects:

(1) The corrosion and rust condition of the gear surface;

(2) The wear condition of the gear tooth surfaces;

(3) The quantity and quality of gear lubricating oil;

(4) The coordination of gear transmission: The coordination among various gears in gear transmission should be good; otherwise, it will lead to increased wear of the tooth surfaces.

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