Low-resistivity aluminum alloy rod

Abstract

The invention discloses a low-resistivity aluminum alloy rod. The low-resistivity aluminum alloy rod consisting the following components in parts by weight: 100 parts of aluminum, 0.04 to 0.06 part of silicon, 1 to 1.3 parts of iron, 0.18 to 0.28 part of copper, 0.08 to 0.1 part of rare earth elements, 0.015 to 0.03 part of boron and 0.01 to 0.02 part of titanium; the rare earth elements consist of lanthanum, cerium and scandium. The low-resistivity aluminum alloy rod is manufactured through the following steps: mixing the lanthanum, the cerium and the scandium according to a weight ratio of 14: 6: 1 to form the rare earth elements; putting all the components into a smelting furnace, heating to smelt the components, carrying out heat preservation at 750 to 780 DEG C, sufficiently stirring over 30 minutes to be uniform, standing and carrying out heat preservation to obtain an alloy melt; casting to obtain an aluminum alloy cast ingot through an aluminum alloy melt, wherein the casting temperature is controlled at 690 to 700 DEG C; carrying out inductive heating, raising the temperature to 520 to 540 DEG C and then rolling, wherein the temperature is raised prior to rolling. A metallic structure of the low-resistivity aluminum alloy rod is better clearly; after production testing and follow-up wiredrawing, the tensile strength and the elongation rate of the low-resistivity aluminum alloy rod are remarkably improved and the resistivity is reduced by 6 to 10 percent.

Description

technical field [0001] The invention relates to an aluminum alloy rod, in particular to a low-resistivity aluminum alloy rod. Background technique [0002] Aluminum alloy is one of the most widely used non-ferrous metal materials in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing, and the research on aluminum alloys is also in-depth. The wide application of aluminum alloys has promoted the development of aluminum alloys in the power industry, while the development of the power industry has promoted the application of aluminum alloys. [0003] Aluminum alloy rods used in aluminum alloy lines, the commonly used aluminum alloy rods should be drawn to 0.10-0.12mm. At present, in the cable field of the machining industry, after the traditional aluminum rod or aluminum alloy r...

AI Technical Summary

Problems solved by technology

At present, in the cable field of the machining industry, after the traditional aluminum rod or aluminum alloy rod is manufactured, due to the limitation of the structure of the material, the performance of the material during processing is affected, and its tensile strength and elongation are low. , the tensile strength is only 180Mpa, and the elongation is only 10%. In the subsequent drawing process, it will cause early broken wires or unqualified strength, which not only causes waste of raw materials, but also increases production costs.