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Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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Filing date
Publication date
Application filed by Daido Steel Co LtdfiledCriticalDaido Steel Co Ltd
Priority to JP8918180ApriorityCriticalpatent/JPS5716135A/en
Publication of JPS5716135ApublicationCriticalpatent/JPS5716135A/en
Publication of JPS6157370B2publicationCriticalpatent/JPS6157370B2/ja
PURPOSE: To prevent glow discharge between electrodes in a refining process by electrode arc heating using a refining container closable tightly for molten metals, by filling the inside of the container with a nonoxidizing atmosphere.
CONSTITUTION: In the refining process by electrode arc 11 heating using the refining container closable tightly for the molten metals 5, N2 gas is blown into the space of the container at a tuyere 6 in an amount of one-tenth or more of the amount of Ar gas that is blown into the space at a tuyere 4. Thus, heat efficiency is improved and the glow discharge between electrodes is prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP8918180A1980-07-021980-07-02Arc heating method for molten metal
GrantedJPS5716135A
(en)
Effect of Limestone on the Specific Consumption of Coke and Electricity and on the Yield of Top Gas when Melting Ferromanganese in RPZ-48 M 2 Electric Furnaces