| 摘要 |
PURPOSE:To improve the migration resistance of a Cu alloy by specifying the amounts of Ti, Fe and Zn in the alloy so as to increase the electric conductivity. CONSTITUTION:The composition of an alloy is composed of 0.1-1.0wt% Ti, 0.2-2.5wt% Fe, 1.5-4.0wt% Zn and the balance essentially Cu. In the composition, Zn is an essential element required to inhibit the migration of Cu and the generation of a leakage current in case where water infiltrates between electrodes under applied voltage. By the composition, 50% IACS electric conductivity can be satisfied. The Cu alloy is usable as a material for household and industrial machine parts and automotive parts requiring a large current capacity, e.g., a terminal and a connector.
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