For Use at Low-temperature
When applying conveyor chains at low-temperature such as within a refrigerator or inside a cold atmosphere, the next situations may perhaps take place.
one) Very low temperature brittleness
Usually, a material is embrittled at low-temperature and shock resistance is lowered. This phenomenon is known as low-temperature brittleness, as well as the degree of embrittlement differs from materials to materials.
The service limit of a conveyor chain will depend on its specs.
two)Influence of freezing
At low-temperature, bending failure, roller rotation failure, repairing of chain, etc. might be caused through the freezing of penetrated water or deposited frost while in the clearance amongst pins and bushings, bushings and rollers or inner plates and outer plates. These problems lead to an overload to act within the chain and drive, diminishing the life in the chain.
To avoid freezing, normally, it’s advised to fill the clearances by using a low-temperature lubricant appropriate for the support temperature to stop water, frost, etc. from penetrating the respective portions with the chain. For lubrication, a silicon based mostly grease is advised.
For Use at High-temperature
Chains power is diminished by high-temperature ambiance, direct conveying of high-temperature loads, or radiated heat, and so on. The support restrict at high-temperature depends not about the temperature on the services environment however the temperature and material from the chain physique.
Following circumstances may possibly happen when chains are employed at high-temperature:
one) High temperature brittleness and fracture by lowered hardness of heat handled materials
2) Brittleness brought about by carbide precipitation
three) Abnormal wear by scale
four) Fatigue fracture caused by repeated thermal shock (cooling and expansion)
5) Abnormal put on as a result of a rise in the coefficient of friction
6) Creep fracture
7) Fracture on account of thermal fatigue of welded location
8) Effects brought on by thermal growth
?Stiff links and rotation failure as a result of decreased clearance ?Fatigue fracture because of lowered fitting force
9）Lubrication failure and stiff links resulting from deterioration and carbonization of lubricating oil
Grease fantastic in heat resistance involve people dependant 
on silicon, graphite or molybdenum disulfide.
For use at high-temperature, high-temperature resistance bearings and stainless steel bearings are encouraged.
