kivisöe peenestamisel saadud peenpulber mida kasutatakse vormisegu lisandina malmvalandite tootmisel
Good to know
Kasutatakse malmvalandite pinnakvaliteedi parandamiseks tänu gaasikihi moodustumisele kontaktis valuvormi ja kuuma metalli vahel mis takistab vormisegu külge jäämist valandi pinnale.
a finely powdered coal used as carboneous additive in molding sands for iron casting
Good to know
Is added in molding sand to enhance the surface finish of iron castings by generating a gas film when in contact with hot metal ensuring the sand from adhering to the casting.
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