| 摘要 |
<p>PURPOSE: A method for regulating the concentration of oxygen in molten steel is provided to prevent a failure of cast products caused by bubble or inclusions by selectively supplying sub materials according to the aluminum concentration of molten steel in a ladle furnace. CONSTITUTION: A method for regulating the concentration of oxygen in molten steel comprises the steps of: accommodating steel molten by a converter into a ladle furnace, sampling the molten steel and checking the aluminum concentration of the molten steel primarily, supplying sub materials to a slag layer(120) formed on the top(115) of the molten steel according to the aluminum concentration, and after completion of oxidation-reduction reaction between the sub materials and the molten steel sampling the molten steel and checking the aluminum concentration of the molten steel secondarily.</p> |
