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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 19a
SUMMARY:Influence of mold coating and -roughness on local mold heat flux in the thin slab caster at Tata Steel in IJmuiden
DESCRIPTION:Wear of the copper mold plates has a major contribution on maintenance costs of thin slab casters. In the upper part of the mold, this wear is caused by high heat loads which leads to crack formation in the copper surface. In the lower part of the mold, mechanical load resulting from the interaction with the strand passing by is the main reason for wear.
Trials were performed in the thin slab caster at Tata Steel in IJmuiden, using a variable thickness nickel coated mold plate. In the upper part of the mold this is combined with a specific surface roughness to reduce the thermal load locally. In the lower part of the mold the coating layer is thicker and is applied without any surface structure with the aim to reduce the mechanical wear.
During these trials, optical fibers (FBG) were used to assess the local temperatures and heat flux in the copper mold. The overall geometry of the mold plate was measured during the trials to evaluate the effect on wear of the mold plate. 
Analyzing the heat flux, it was shown that modifying the surface of the copper mold plate resulted in a reduced heat transfer. The thermal resistance of the coating layer and surface roughness measured using the integral heat flux, is comparable to 10 mm of copper thickness. Comparing casting situations with similar process conditions, the local heat flux measured just below the meniscus showed a reduction of up to 26 %.
CLASS:PUBLIC
DTSTART:20230614T145000
DTEND:20230614T151000
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