The problem of chain rust cannot be underestimated.

Chains are widely used in various industrial applications, but they often face serious problems of rust and corrosion, which can have significant impacts and consequences that should not be overlooked. Rusting issues can start small but lead to major malfunctions if not properly addressed. Chains usually come pre - lubricated during manufacturing, yet this initial lubrication is insufficient for outdoor or harsh environmental conditions, especially those involving salt - containing atmospheres.

The chain has been lubricated before leaving the factory. However, this kind of lubrication cannot meet the requirements of outdoor applications, especially for the atmospheric environment containing salt water.

Rust and corrosion have always been relatively frequent problems for chains. The occurrence of rust on the chain will lead to:

Four major consequences:

1.Increased energy consumption of the entire drive device.
Due to the deformation and rust of the chain, the resistance of the machine will increase, resulting in an increase in energy consumption.

2.Increased noise of the chain.
The noise generated by the chain will also increase, having an adverse impact on the surrounding environment.

3.Chain breakage.
Rust and corrosion will accelerate the wear of the chain. If the tensile force exceeds the service limit, the chain will break, causing serious consequences for the entire device.

4.Decreased balance and operability of the drive device.
The entire drive device cannot perform precise acceleration operations, resulting in unstable operation.

Here are a few difficult solution plans for your reference. It is very important to take preventive measures.

01 Severe corrosion and erosion of all parts

The sleeves and rollers have been corroded/worn into a thin crystal with corresponding pin wear. The chain plates have a large degree of side wear and severe indentation.

This kind of chain is used in extremely unfavorable environments such as high temperature and water spray.

Solution:
Improve the lubrication method and consider using anti-corrosion chains.

02 Chain drive corrosion for drum polishing machine
This chain is used in a water-polluted environment.

The chain is not regularly lubricated. The external parts have been gradually corroded until the rollers seize up. Then the chain rollers are severely worn.

Solution:
Stay away from water as much as possible and increase the maintenance and lubrication cycle.

03 Chain on the conveyor drive in a sugar factory
All parts on the chain on the conveyor drive in a sugar factory are severely corroded.

The chain works without any lubrication and is also affected by acidic sugar juice. As a result, the chain is severely corroded and eroded.

Solution:
Replace the chain and ensure proper lubrication. Use appropriate sleeves to protect the chain and keep it away from acidic sugar juice.

04 2.5-inch special chain for mine transportation
The loose-fitting joint pin shaft of the 2.5-inch special chain for mine transportation suffers fatigue failure.

The joint is extremely dry and shows no sign of lubrication. The joint shows surface corrosion and the product has severe wear.

Subsequent investigations showed that the chain had worked in water, but more importantly, in order to make assembly easier, the user opened the loose chain plate hole of joint No. 58, which caused fatigue failure.

Solution:
The user chooses a better pin shaft and considers changing the assembly method according to the actual application. Reconsider the lubrication scheme.

05 Chain in continuous casting machine
High-temperature corrosion of the rollers of the chain drive in the continuous casting machine.

Lubrication is already ineffective for the chain, and the chain parts are corroded. Lubrication does not penetrate into the circular parts of the chain.

Solution: Replace the chain and correctly select the lubricant for lubrication according to the initial temperature and environment.

In order to obtain maximum performance from a series of chains and sprockets, it is necessary to regularly carry out a maintenance plan and implement the plan. This can not only ensure the optimal chain life but also reduce the downtime and the restrictive inconvenience when the chain has to be replaced. To ensure that the chain you purchased reaches the maximum service life, please refer to the installation, maintenance, and design guidelines for transmission chains or conveyor chains.