A kind of aluminum alloy material and preparation method thereof

Abstract

The invention relates to an aluminum alloy material which is characterized in that the aluminum alloy material comprises the following components by weight percent: 0.16-1.2% of Fe, 0.001-0.8% of Cu, 0.001-0.8% of Mg, 0.001-0.8% of Zn, 0.001-0.8% of Ca, 0.001-1.0% of rare-earth elements, a trace amount of strontium, titanium, boron, nickel, chromium, zirconium, vanadium, beryllium, cobalt, lead, tin, bismuth, molybdenum, silver, indium, niobium and barium and the balance of aluminum. The alloy has excellent mechanical strength, processing performance and corrosion resistance and is suitable for the cable armored sheath.

Description

technical field [0001] The invention belongs to the field of nonferrous metal materials, and in particular relates to an aluminum alloy material and a preparation method thereof. Background technique [0002] Metal wire armored power cables can withstand certain pressure and tension. The armor layer of this type of cable is mostly composed of galvanized steel wire. Since galvanized steel wire is a magnetic material, for single-core AC cables, not only will it be As a result, the loss increases and the calorific value increases. In order to solve this problem, steel wires and copper wires are generally used to make the armor layer at intervals. According to statistics from the China Nonferrous Metals Industry Association, as of 2011, China's copper reserves were about 30 million tons, accounting for about 5% of the world's total reserves, and the supply of copper concentrates was less than 30%. The annual copper consumption was about 7 million tons, more than 70% depend on i...

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Problems solved by technology

Good corrosion resistance; but the strength of pure aluminum is very low, the annealed state σb value is about 8kgf / mm2, so it is not suitable for structural materials

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