It is very important to improve the durability of mirror roll and prolong its service life. What are the factors that affect the service life of mirror rolls?

 

 

 

The key factor affecting the durability of mirror roll is chromium coating, and the hardness of chromium is very important to improve the durability of mirror roll.

 

 

 

The secondary hardening of working layer structure of mirror roll body refers to the precipitation process of secondary carbide after high temperature quenching. After high chromium cast steel roll is heated to austenitizing temperature, it should be rapidly cooled to keep chromium, molybdenum, vanadium and other alloy elements in austenite.

 

 

 

Therefore, chromium coating is an important factor affecting the service life of mirror rolls. Of course, cleaning and maintenance in peacetime and correct operation also have a certain impact on the service life of mirror rolls