The Problem
Consequently, the significant forces occurring during the rolling process shorten the service life of reciprocating rollers, reducing the effective working time and increasing the frequency of maintenance shutdowns. It is also much more difficult to achieve the required geometry of rolled elements. It undermines the rolling process and its continuity, and also generates significant costs associated with the downtime and replacement of rollers.
The Results
In an effort to eliminate the adverse phenomena coinciding with the rolling process, a team of Plasma System engineers developed a method of applying a chromium carbide (Cr3C2-NiCr) top layer with a hardness of 900-1200 HV0.3 and thickness of 40-60 microns on the working part of roller circumference.
This solution greatly extended the service life of reciprocating rollers, thereby increasing rolling mill output.
