微量锆对导电铝合金耐热性的影响

Influence of Zirconium on the Heat-resistance of Aluminium-alloy Conductor

含０．１２％Ｚｒ与不含锆的铝合金棒材，经５３０℃×１．５ｈ固溶处理和２５０℃×４８ｈ时效处理，再经７０％的冷拨加工成中Φ４．５ｍｍ的线材。试验结果表明：前者比后者的耐热性有明显提高。

The aluminium alloy clubs which contain 0. 12%Zr or has no zirconium were cold-drawed to Φ4.5 mm wire after 530℃×1.5h solution and 250℃×48h age. Experimental results show that the heat resistance of the former is higher obviously than that of the latter.