INERT GAS SUPPLY DEVICE FOR TANDISH

PURPOSE:To quickly replace the air in a tandish which does not contain non- inert gas with inert gas, and also, to stably maintain its state. CONSTITUTION:The device is constituted so that from the periphery of an inert gas nozzle 2 for ejecting inert gas at a high speed to a tandish, inert gas 5 is...

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Bibliographic Details
Main Authors HASEGAWA TOSHIAKI, KATSUSHIMA HIROKAZU, UENO HIDEO, HARA MAKOTO, FUKUZUMI TATSUO
Format Patent
LanguageEnglish
Published 23.10.1992
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:PURPOSE:To quickly replace the air in a tandish which does not contain non- inert gas with inert gas, and also, to stably maintain its state. CONSTITUTION:The device is constituted so that from the periphery of an inert gas nozzle 2 for ejecting inert gas at a high speed to a tandish, inert gas 5 is ejected at a lower speed than the inert gas 4 while surrounding it. For instance, a speed of a flow of the inert gas 5 of a low speed for surrounding a flow of the inert gas 4 of a high speed is set to 1/10-1/20 of the inert gas 4 of a high speed.
Bibliography:Application Number: JP19910087331