| 摘要 |
PURPOSE:To obtain an Mg alloy for a galvanic anode having a large generated electric quantity, high efficiency and a long service life by specifying a compsn. constituted of Al, Zn, Mn, Ti, B and Mg. CONSTITUTION:This is an Mg alloy for a galvanic anode contg., by weight, 5 to 16% Al, 0.5 to 10% Zn, 0.1 to 1% Mn, 0.005 to 0.1% Ti, 0.001 to 0.02% B and the balance Mg with inevitable impurities and suitable for the electric protection of steel structures. At the time of using this Mg alloy for the electric protection of steel structures set under soil or on the ground, it has a sufficiently base anodic potential, furthermore has about 1470 to 1500A.hr/kg generated electric quantity, has high efficiency of about 76 to 78% and is stably usable over a long period. |
