Composite core high-elongation heat-resistant aluminum alloy wire for smart energy and manufacturing method thereof

Abstract

The invention discloses a composite core high stretching rate heat resisting aluminum alloy conductor for a smart energy source and a manufacture method thereof. The manufacture method of the composite core high stretching rate heat resisting aluminum alloy conductor for the smart energy source includes: step 1, obtaining a heat resisting aluminum alloy rod through processing; step 2, performing high temperature aging treatment on the heat resisting aluminum alloy rod so as to obtain a high stretching rate heat resisting aluminum alloy rod; step 3, processing the high stretching rate heat resisting aluminum alloy rod so as to obtain high stretching rate heat resisting aluminum alloy wires; step 4, stranding a plurality of the high stretching rate heat resisting aluminum alloy wires with a fiber reinforced resin-based composite core according to a needed stranding mode through a frame type stranding machine so as to form a composite core high stretching rate heat resisting aluminum alloy conductor finished product with the fiber reinforced resin-based composite core located inside and a high stretching rate heat resisting aluminum alloy wire stranding layer located on the exterior of the fiber reinforced resin-based composite core. The manufacture method of the composite core high stretching rate heat resisting aluminum alloy conductor perfectly combines the composite core with the high stretching rate heat resisting aluminum alloy wires, provides concrete processes, and produces the composite core high stretching rate heat resisting aluminum alloy conductor large in pulling strength, large in carrying capacity, large in surface hardness, difficult to scratch in laying, high in strength under high temperature, and capable of improving line security.

Description

technical field [0001] The invention relates to a composite core high-elongation heat-resistant aluminum alloy wire for smart energy and a manufacturing method thereof. Background technique [0002] Because of its light weight, high tensile strength, high temperature resistance, high specific modulus, and small linear expansion coefficient, fiber-reinforced resin-based composite wires have attracted widespread attention and gradually been popularized and applied in power transmission. [0003] At present, one kind of fiber-reinforced resin-based composite wire is mainly an annealed aluminum wire with a fiber-reinforced resin-based composite core. The wire structure is a soft aluminum conductor outside the composite core. Because the resistivity of the soft aluminum conductor is lower than that of the ordinary hard aluminum conductor, the conductivity can reach 62.5-63.5% IACS, and its conductivity is increased by 1% compared with the ordinary hard aluminum wire. ~2%. Accor...

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Problems solved by technology

However, the traditional heat-resistant aluminum alloy wire has the following disadvantages: the elongation of the heat-resistant aluminum alloy wire is about 1.5% to 2.0%, while the elongation of the composite core is 2.0 to 3.0%. When the composite core heat-resistant aluminum alloy wire is under tension, because the elongation of the heat-resistant aluminum alloy is smaller than that of the composite core, the heat-resistant aluminum alloy first reaches the limit and breaks, while the strength of the composite core only reaches 50%~ 70%, but failed to give full play to its rated strength, resulting in a small breaking force of the whole wire, so that the advantages of high strength and high modulus of the composite core could not be exerted

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