High-conductivity aluminum alloy and production process thereof

The invention provides a high-conductivity aluminum alloy and a production process thereof, and the high-conductivity aluminum alloy comprises the following components in percentage by mass: 0.2% of Si, 0.35% of Fe, 0.1% of Cu, 0.15% of Mn, 0.6% of Mg, 0.1% of Cr, 0.1% of Zn, 0.1% of Ti, 0.06% of B and the balance of Al inevitable impurities. By adding a certain amount of boron element into the aluminum alloy, the conductivity of the aluminum alloy is improved. The content of the silicon element is controlled to be 0.2%, and the content of the boron element is controlled to be 0.06%, so that the aluminum alloy has high conductivity. And by carrying out stepped aging treatment on the aluminum alloy, the conductivity of the aluminum alloy can be further improved. 本发明提供了一种高电导率铝合金及其生产工艺，按质量百分数计，包括Si：0.2%、Fe：0.35%、Cu：0.1%、Mn：0.15%、Mg：0.6%、Cr：0.1%、Zn：0.1%、Ti：0.1%和B：0.06%，余料为Al不可避免的杂质。通过向铝合金中加入一定量的硼元素，提升铝合金的电导率。将硅元素的含量控制在0.2%，将硼元素的含量控制在0.06%，可使铝合金具有较高的电导率。通过对铝合金进行阶梯时效处理，可再进一步提升铝合金的电导率。