METHOD AND APPARATUS FOR CONTROLLING CONCENTRATION OF OXYGEN DISSOLVED IN LIQUID METAL

摘要

PPROBLEM TO BE SOLVED: To inhibit corrosion even in the case of a liquid metal having high corrosion properties to a structural member by controlling the concentration of oxygen dissolved in the liquid metal so that it is within a control range defined by upper and lower limits. PSOLUTION: The concentration of oxygen dissolved in the liquid metal 1 is controlled as it is computed from the battery motive power measured with an individual electrolyte oxygen sensor 13 and the measured temperature of the liquid metal. When the concentration of the dissolved oxygen drops below a preset lower control limit, the concentration of the dissolved oxygen is increased through an oxidation process; when the concentration rises above a preset upper control limit, the concentration of the dissolved oxygen is reduced through a reduction process, whereby the concentration of the oxygen dissolved in the liquid metal is controlled. PCOPYRIGHT: (C)2003,JPO