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UID:pretalx-icr2024-WJTCQF@pretalx.com
DTSTART;TZID=CET:20240919T122000
DTEND;TZID=CET:20240919T124000
DESCRIPTION:MgO-C refractories are widely used in steel industry especially
  in steel ladles\, BOF and EAF. They are exposed to mechanical and thermal
  stresses as well as interaction with corrosive media. In contact with sla
 g or metal most severe wear can be observed\, that’s why high purity raw
  materials must be used to withstand those conditions. Usually\, in order 
 to strengthen the thermo-mechanical properties of MgO-C materials\, they a
 re achieved by introducing antioxidant additives\, which at high temperatu
 res create ceramic forms that strengthen their structure. However\, other 
 additions may be considered in this area. Aggregates containing CaO and Mg
 O-bearing aluminates  improve selected slag resistance but also are one of
  the most promising solutions for stabilization for steel ladle lining. \n
        Application in the laboratory test  different grain sizes of alumin
 ate aggregate to MgO-C refractories improved the slag resistance by contac
 t layer formation\, but also allowed to control the secondary dimensions c
 hange after heating end thermal expansion. Research included tests of the 
 possibility of using recycled raw materials in combination with aluminates
 . Obtained results enabled   to design a complete ladle lining constructio
 n optimal for ladles with silicon-killed steel process and high thermomech
 anical stress in advanced secondary metallurgy. Laboratory samples and  po
 st mortem samples observation of microstructure by  SEM/EDS method allow t
 o explain influence aluminates on slag attack and thermal stress resistanc
 e especially by joints enforcement.
DTSTAMP:20260307T205127Z
LOCATION:Europe Hall
SUMMARY:Modification of MgO-C products with additions of CA-containing aggr
 egates - Maciej Ludwig
URL:https://pretalx.com/icr2024/talk/WJTCQF/
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