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Mould Powders
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Bottom Pouring Powders


Thermotect and Scorialit
are fine grained mixtures. The grain size depends on the raw materials used. The powders have the following functions

 doublearrows
  • Thermal insulation of the liquid steel surface
  • Prevention of re-oxidation
  • Inclusion absorption
The above functions are controlled by the following properties: doublearrows
  • Basicity
  • Viscosity
  • Melting speed
  • Melting behaviour
The choice of a bottom pouring powder is depending on: doublearrows
  • Mould size and mould type
  • Casting speed
  • Casting temperature
  • Steel grade
Bottom pouring powders are tailor-made to customer requirements.
Metallurgica supplies bottom pouring powders for all current ingot sizes and formats.
These bottom pouring powders are also available in a spray-dried form.