Continuous Slab Caster Roll Bearing Design Reduces Stuck Roll Events, Extends Roll Life and Increases Plant Uptime

A series of unplanned segment exchanges in slab casters prompted an effort, in 2017, to reduce stuck roll events within a cost-per-ton maintenance contract. Unplanned downtimes reduce the net operating time, and frequent segment repairs are expensive. A new roll bearing design, developed by Primetals Technologies, has demonstrated segment lifetime extension of up to 30% by means of a bearing unit that is much stronger by design, allowing for almost infinite axial movements, even under extremely inclined mounting situations. This paper presents operational, maintenance and research study data, showing best-in-class static load C0 of the adopted bearing solution.

Authors:

Gerald Hohenbichler | Primetals Technologies
 

Tim Leschke | Primetals Technologies
 

Franz Kolmbauer | Primetals Technologies
 

Session Chairs:

Tim Carnrike | Shinagawa Advanced Materials Americas, Inc.
 

Darrell Sturgill | HWI, A Member of Calderys
 

Lidia Yakovleva | Cleveland-Cliffs Burns Harbor