Metallurgical apparatus – Process – Plugging or tapping
Patent
1997-10-24
1999-03-23
Kastler, Scott
Metallurgical apparatus
Process
Plugging or tapping
266286, 222606, 501 99, 501108, C21B 712
Patent
active
058855203
ABSTRACT:
A nozzle or tube which is useful for pouring molten metal, especially aluminum killed molten steel. The nozzle is formed from a blend of doloma and graphite which is bonded together in a carbonized matrix. Nozzles or tubes made in accordance with this invention have enhanced thermal shock resistance. Furthermore, the nozzles or tubes of this invention resist the formation of aluminum oxide therein when they are used for pouring molten aluminum killed steel. Consequently, these tubes or nozzles can be used in a continuous casting process for a long period of time without having to periodically stop the procedure and change the tubes as they become blocked with aluminum oxide. As a result of the thermal shock resistance, the usual preheating step prior to contacting the nozzle with the molten metal is greatly reduced.
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Baker Refractories
Kastler Scott
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