A continuous casting nozzle for casting molten steel

B - Operations – Transporting – 22 – D

Patent

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B22D 41/54 (2006.01)

Patent

CA 2218428

The invention is related to a continuous casting nozzle for casting of aluminum killed steel without clogging of the bore of the nozzle. The surface layer of the bore of the continuous casting nozzle contacting with the molten steel is formed of a refractory comprising graphite from 10 to 35 wt% and roseki as the rest part of the graphite, and the main component of the roseki is pyrophyllite (Al2O3~4SiO2~H2O) as mineral component. Further, silicon carbide from 1 to 10 wt% is contained in the refractory.

L'invention porte sur une busette de coulée en continu pour le coulage d'acier calmé à l'aluminium, sans boucher le trou de la busette. La couche superficielle de l'ouverture de la busette au contact avec l'acier en fusion est formée d'un matériau réfractaire renfermant de 10 à 35 % en poids de graphite, de 1 à 10 % en poids de carbure de silicium, le roseki constituant le reste; la principale composante minérale du roseki est la pyrophyllite (Al2O3~4SiO2~H2O).

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