Preparation method of high-conductivity heat-resistant aluminum alloy wire

Abstract

The invention discloses a method for preparing a high-conductivity and heat-resistant aluminum alloy wire, which comprises the following steps: S1. Place carbon fiber and basalt fiber on a yarn rack to divide the yarn, adjust the tension, perform dehydration treatment, and then pull and infiltrate through a constant temperature glue tank A thermosetting resin composition; S2. The carbon fiber and basalt fiber soaked in the thermosetting resin composition are cured and formed through a heating forming mold to obtain a composite fiber reinforced core; S3. Processing is made of an aluminum alloy rod with a diameter of 9.5mm, and then passed through an aluminum alloy Wire drawing machine draws aluminum alloy single wires; S4. Twisting several aluminum alloy single wires on the outer surface of the composite fiber reinforced core to form an aluminum alloy conductor layer to make a high-conductivity heat-resistant aluminum alloy wire product; The heat-resistant aluminum alloy wire has good heat resistance, and can still maintain stable performance when working at high temperature for a long time. It has a long service life and effectively reduces maintenance costs.

Description

technical field [0001] The invention relates to the field of aluminum alloy wires, in particular to a method for preparing a highly conductive and heat-resistant aluminum alloy wire. Background technique [0002] For long-distance power transmission, the above-ground part usually uses steel-cored aluminum stranded wire, and the underground uses insulated cables with extruded insulation layers on the outer surface. However, the tensile strength of ACSR is poor, the span of overhead laying is limited, and the overhead sag is large, which not only results in high erection costs, but also has poor resistance to external forces. Sudden external forces such as strong winds and heavy rains are prone to disconnection accidents. [0003] Carbon fiber composite cored aluminum stranded wire is an updated product of traditional steel-reinforced aluminum stranded wire. The core technology of this type of aluminum stranded wire lies in the manufacture of mandrels. The existing composite f...

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Problems solved by technology

However, the tensile strength of the steel-cored aluminum stranded wire is poor, the span of overhead laying is limited, and the overhead sag is large, which not only results in high erection costs, but also has poor resistance to external forces. Sudden external forces such as strong winds and heavy rains are prone to disconnection accidents

[0003] Carbon fiber composite cored aluminum stranded wire is an updated product of traditional steel-reinforced aluminum stranded wire. The core technology of this type of aluminum stranded wire lies in the manufacture of mandrels. The existing composite fiber mandrels have problems such as heat resistance and poor roundness. Affect the performance of aluminum stranded wire

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