Title:
METHOD FOR PREVENTING CORROSION OF STRUCTURAL MEMBER FOR LIQUID METAL COOLANT
Document Type and Number:
Japanese Patent JP3838909
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To stably and continuously form a protective film having soundness to liquid metal on the surface of a structural member making contact with the liquid metal and to prevent corrosion even in the case of the liquid metal having high corrosion properties to the structural member.
SOLUTION: The concentration of oxygen dissolved in the liquid metal 1 is computed from measurements made with a dissolved oxygen concentration measuring sensor 13 and a temperature sensor 15. When the measurement drops below preset a lower control limit, the concentration of the dissolved oxygen is increased through an oxidation process; when the measurement rises above an upper control limit, the concentration of the dissolved oxygen is reduced through a reduction process. Thus, the protective film having soundness to the liquid metal 1 is stably and continuously formed on the surface of the structural member making contact with the liquid metal 1, to prevent corrosion of the structural member 2.
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Inventors:
Nobunaga, Hisashi
Kamata, Kinya
Kamata, Kinya
Application Number:
JP2001000388855
Publication Date:
August 11, 2006
Filing Date:
December 21, 2001
Export Citation:
Assignee:
MITSUI ENG & SHIPBUILD CO LTD
International Classes:
G21C17/02; G21D1/00; B01J19/00; C23C8/10; C23F15/00; G21D3/08; (IPC1-7): G21D1/00; B01J19/00; C23C8/10; C23F15/00; G21C17/02; G21D3/08