News

28

2022

-

04

Roll selection

Common roll materials and uses are shown in the table. Roll performance and quality generally depend on its chemical composition and manufacturing method and can be evaluated by its microstructure, physical and mechanical properties, and the type of residual stress present inside the roll (see roll inspection). The performance of rolls in a rolling mill depends not only on the roll material and its metallurgical quality, but also on the operating conditions, roll design, and operation and maintenance. The operating conditions of rolls in different types of rolling mills vary greatly. The factors causing these differences are: (1) Mill conditions. Such as mill type, mill and roll design, roll pass design, water cooling conditions, and bearing types, etc.; (2) Rolling conditions such as the type and specifications of the rolled material and its deformation resistance, reduction schedule and temperature regime, production requirements and operation, etc.; (3) Requirements for product quality and surface quality, etc.

Common roll materials and uses are shown in the table. The performance and quality of rolls generally depend on their chemical composition and manufacturing methods and can be evaluated by their microstructure, physical and mechanical properties, and the type of residual stress present inside the rolls (see roll inspection). The performance of rolls in a rolling mill depends not only on the roll material and its metallurgical quality, but also on the operating conditions, roll design, and operation and maintenance. The operating conditions of rolls in different types of rolling mills vary greatly. The factors causing these differences are: (1) Mill conditions. Such as mill type, mill and roll design, roll pass design, water cooling conditions, and bearing types, etc.; (2) Rolling conditions such as the type and specifications of the rolled material and its deformation resistance, reduction schedule and temperature regime, production requirements and operation, etc.; (3) Requirements for product quality and surface quality, etc.