Aluminum iron copper magnesium rare earth alloy material for electric wire and cable and preparation method thereof

Abstract

The invention discloses an aluminum iron copper magnesium rare earth alloy material for an electric wire and a cable and a preparation method thereof. The aluminum iron copper magnesium rare earth alloy material for the electric wire and the cable comprises the raw materials in percentage by weight: 0.10-1.00 percent of iron, 0.01-0.40 percent of copper, 0.005-0.20 percent of magnesium, 0.01-0.50 percent of cerium, 0.006-0.01 percent of boron and the balance of aluminum. The preparation method of the aluminum iron copper magnesium rare earth alloy material comprises the following steps of: melting all the raw materials and then casting into an aluminum alloy test rod; performing multiple rotary forging on the aluminum alloy test rod to form an aluminum alloy rod; annealing the aluminum rod and then drawing; and annealing a drawn aluminum wire. The prepared aluminum alloy electric wire has superior electric property and mechanical performance and can be applied to an electric wire and cable conductor.

Description

1. Technical field [0001] The invention relates to a material for wire and cable conductors and a preparation method thereof, in particular to an aluminum-iron-copper-magnesium rare earth alloy material and a preparation method thereof. 2. Background technology [0002] At present, most of the cable conductors use copper wires. Due to the shortage of copper resources and high copper prices, copper conductors account for about 70% of the cost of copper cables. The cost of manufacturing copper cables is too high, but using pure aluminum, long-term operation or after current overload Larger creep occurs, resulting in too large contact resistance, which is easy to cause accidents, and the bending performance is not good, easy to crack or break, which is also easy to cause accidents. [0003] The conductivity of aluminum alloy wires and cables widely used at present is 61%IACS. If the conductivity of aluminum alloy wires and cables can be increased from 61%IACS to 62%IACS and abo...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the cable conductors use copper wires. Due to the shortage of copper resources and high copper prices, copper conductors account for about 70% of the cost of copper cables. The cost of manufacturing copper cables is too high, but using pure aluminum, long-term operation or after current overload Larger creep occurs, resulting in too large contact resistance, which is easy to cause accidents, and the bending performance is not good, easy to crack or break, which is also easy to cause accidents