Caster Segment Clamping Cylinder Upgrade
Problem:
An electric arc furnace steel processor was experiencing hydraulic cylinder failure on the segment clamp circuit. New cylinders were failing in 3-8 weeks.
Process:
- An exhaustive study of the application was done. Including all component specifications.
- Two inherent design flaws were identified.
- The equipment was observed in operation and production and maintenance personnel were consulted as correct operation sequence functions were determined.
- A course of action which included:
- Identification of failed components
- Redesign of the rod bearing gland.
- Increase load bearing area.
- Material change.
- Redesigned seal cavity dimensions and configuration.
- Changed seal material.
- Installed hi-temp Kevlar rod boot.
Results:
- Cylinders are now being remanufactured when the entire segment is removed for planned maintenance.