FIELD: metallurgy, namely systems for transporting melt metals.
SUBSTANCE: apparatus includes two-flange sealing refractory insert arranged between joined refractory parts. Layer of plastic graphite coating is applied onto outer surfaces of insert and flange fixing end face of one of joined parts. Said graphite coating contains, mass %: graphite, 75 - 85; plastic refractory material, 25 - 15. Insert itself is also made of plastic refractory material.
EFFECT: enhanced reliability of fixing joined refractory parts due to using simultaneously two end flanges, simplified dismounting of unit.
5 cl, 2 dwg, 1 ex
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