How do roller chains maintain high reliability in the metallurgical industry?

How do roller chains maintain high reliability in the metallurgical industry?
In the metallurgical industry, roller chains are key transmission components due to their high strength, high wear resistance and high reliability. Here are some specific measures to ensure that roller chains maintain high reliability in this harsh environment:

1. Material selection and heat treatment
The chain plates of roller chains are usually made of high-strength metal materials such as carbon steel and stainless steel to ensure that the chain has sufficient strength and wear resistance. Common materials for rollers are carbon steel, alloy steel and stainless steel, which can withstand the load and rolling motion in chain transmission. Pins are usually made of high-strength alloy steel to ensure the stability of the connection and the reliability of the transmitted force. For high-temperature environments, chain parts should be made of high-temperature resistant materials or coated with high-temperature resistant grease

2. Design optimization
Chains in the metallurgical industry need to be specially designed and developed, and the materials and heat treatment of the chains should be selected according to the different working conditions of the site of use. When designing the chain, factors such as high temperature, high humidity, and accelerated wear caused by a large amount of iron scale and metal powder on the production line need to be considered.

3. High temperature resistance and corrosion resistance
Chains in the metallurgical industry must be able to withstand high temperatures and corrosive environments. After heat treatment, chains made of high-temperature resistant steel will not become brittle due to the high temperature of the conveyed objects. Different measures are taken for chains running in different high-temperature environments. For example, for chains running at an ambient temperature of 200 to 350°C, sleeve parts should be made of 35CrMo high-quality alloy steel and rollers should be made of 20Cr high-quality alloy steel.

4. Maintenance and care
Regular maintenance is the key to ensuring high reliability of roller chains. This includes adjusting the tension of the chain to keep it in the best working condition.

Cleaning and rust removal are also important maintenance steps to prevent it from affecting the lubrication effect and aggravating wear.

As a vulnerable part in the roller chain coupling, the bearing needs to be checked for wear regularly and replaced in time.

5. Fault prevention and repair
Reasonable load and temperature monitoring are important measures to prevent faults. Avoid long-term overload operation and ensure that the roller chain coupling works within the rated load range. Provide professional training for operators and maintenance personnel to improve their understanding of the working principle, common faults and emergency handling capabilities of the roller chain coupling. 6. Professional diagnosis and record When encountering complex faults, professional technicians should be invited to diagnose and use advanced detection tools and methods to quickly locate the root cause of the fault. Establish a complete maintenance record file, record the time, content, replacement parts and maintenance effect of each maintenance in detail, and provide a reference for subsequent maintenance. Conclusion The key to maintaining high reliability of roller chains in the metallurgical industry lies in the selection of suitable materials, optimized design, high temperature and corrosion resistance, regular maintenance, fault prevention and professional maintenance. Through these measures, the roller chain can be ensured to operate stably under harsh working conditions such as high temperature, heavy load, continuous impact load, dust, iron chips and scales, corrosion and high humidity, meeting the high requirements of the metallurgical industry for chains.