The roller part of the sheet metal straightening machine is the working part of the machine, including the work roll and the backup roll.
The specific parameters are as follows:
The work roll material is 60CrMoV;
The hardness of quenching and tempering treatment is HB286 ~ HB321;
Surface hardening hardness is HRC56～HRC63;
Hardened layer depth is 6mm ~ 10mm;
The roughness is 0.8 μm;
Dimensional tolerances reach h6.
In order to meet the rigidity requirements of the work rolls, three rows of upper and lower support rolls are specially provided.