Aluminium-alloy conductor and manufacture method thereof

Abstract

The invention provides an aluminium-alloy conductor and a manufacture method thereof. The aluminium-alloy conductor contains the components in percent by weight: 99.2-99.6 percent of aluminium, 0.03-0.5 percent of zirconium, 0.01-0.1 percent of yttrium and 0.2-0.3 percent of the rest. The aluminium-alloy conductor is manufactured by the following steps of: adding trace amount of zirconium and yttrium to a molten aluminium ingot, melting into aluminium-alloy liquid and then casting, crystallizing, rolling, drawing and the like. In the invention, the crystalline state is ensured to be good by strictly controlling the impurity content of the aluminium ingot and the content of the alloying adding element and adding boron alloy refined crystal particles, and aluminium liquid can be ensured to be completely poured out by adopting an automatic temperature-control kettle furnace, which enables the manufactured aluminium-alloy conductor to have high electrical conductivity and heat resistance, thereby meeting the requirements of industry for the performance of the aluminium-alloy conductor. The aluminium-alloy conductor is especially suitable for being manufactured into the high-electrical conductivity heat-resistant cables.

Description

technical field [0001] The invention relates to a wire, in particular to an aluminum alloy wire and a manufacturing method thereof. Background technique [0002] Aluminum alloy wires are usually made of aluminum ingots through smelting, alloying, refining and ordinary continuous casting and rolling to obtain alloy rods, and then wire drawing and heat treatment can meet the mechanical and electrical performance requirements of 60% IACS or more. In order to produce high-conductivity heat-resistant aluminum alloy wire, it is necessary to strictly control the impurity content in the alloy, add trace elements that are beneficial to increase the recrystallization temperature, and adopt a suitable manufacturing process. At present, the holding furnace used in the smelting process of aluminum alloy is a flat-bottomed furnace. After each smelting, the alloy liquid cannot be dumped cleanly, so that the alloy liquid remains in the furnace, which will have an adverse effect on the confi...

AI Technical Summary

Problems solved by technology

At present, the holding furnace used in the smelting process of aluminum alloy is a flat-bottomed furnace. After each smelting, the alloy liquid cannot be dumped cleanly, so that the alloy liquid remains in the furnace, which will have an adverse effect on the configuration of the alloy liquid in the next furnace. The main properties such as conductivity and strength residual rate of high-conductivity heat-resistant aluminum alloy wire are affected, and the purpose of stable production cannot be achieved.