Resistance to molten metals and slags Flashcards

1
Q

What are the characteristics of graphite?

A

~ it is non-wetting to most molten metals and slags

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2
Q

What does graphite do?

A

~ reduces iron oxide to iron metal, so Fe2O3/Fe3O4 DOESN’T FORM low-melting eutectic liquids with MgO

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3
Q

What does CO and or Mg vapor do?

A

~ formed from oxidation of carbon or reduction of MgO

~ provides an OVERPRESSURE, resists slag/metal ingress

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