Thermal effects on wear and material degradation of slag pots operating in steel production

摘要

Slag pots are commonly used for the transportation of liquid slag from steel mills to slag dumps. A detailed failure analysis of slag pots is required to determine effects limiting their lifetime. Temperature measurements were implemented throughout an ongoing operation to quantify thermal loading. Different microscopy methods, cross sectional analyses and hardness measurements were performed on a slag pot after prolonged usage. Material degradation mechanisms, wear and deformations found during and after slag pot operation were compared to performed finite element simulations of the transport cycle. Special focus was placed on weaknesses of the current design.