| 摘要 |
PURPOSE:To obtain the titled alloy having good bendability, excellent strength, heat resistance and heat conductivity by specifying the compsn. consisting of Cr, Sn, P and Cu. CONSTITUTION:The titled alloy consists of, by weight, 0.03-0.2% Cr, 0.03-0.2% Sn, <=0.2% P and the balance Cu and has the improved strength and heat resistance without lowering the heat conductivity and bendability of Cu. The desired strength and heat resistance of the alloy are not obtd. at the time of below the lower limit and furthermore the lowering of conductivity is remarkable at the time of beyond the upper limit in Cr and Sn among the elements to be added of the above-mentioned alloy. On the other hand, the strength and heat resistance of the alloy are improved by P, but the heat conductivity is remarkably lowered and the workability is impaired at the time of >0.2% P.
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