FIELD: metallurgy.
SUBSTANCE: fireproof pipe contains the first end with the first flat contact surface, perpendicular to longitudinal axis of pipe, and pouring channel, stretching from the first flat contact surface up to the second end of pipe. The first end of pipe is outfitted by gas-permeable component, located so that one of it surfaces forms part of the first flat contact surface. Additionally the first end is outfitted by one gas channel stretching from surface of gas-permeable component up to the first flat contact surface. Fireproof pipe jointly with the second fireproof component allowing the second flat contact surface and the second pouring channel forms unit of fireproof pouring pipe.
EFFECT: effective protection of molten metal, flowing by fireproof pipe against penetration of ambient air.
8 cl, 1 dwg
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