An intermediate high-conductivity aluminum single wire and its manufacturing method

Abstract

The invention discloses an intermediate state high-conductive aluminum single wire and a manufacturing method thereof. The process comprises the steps of: S1, processing an aluminum rod: performing smelting, refining and continuous casting and rolling processes on an aluminum ingot to produce the aluminum rod, wherein the performance of the aluminum rod is as follows: the diameter is controlled at 12.0-16.0mm, the conductor conductivity at 20 DEG C is greater than or equal to 0.02760omega.mm2 / m, the tensile strength is 90-120MPa and the elongation is greater than or equal to 20.0%; S2, extruding a soft aluminum wire blank from the aluminum rod; and S3, drawing the soft aluminum wire blank through a high-speed drawbench to form the intermediate state high-conductive aluminum single wire, wherein the diameter or the equivalent diameter of the intermediate state is 2.50-6.00mm, the strength is 115-150MPa, the elongation is greater than or equal to 5.0%, and the conductivity is greater than or equal to 62.5%. The invention adopts a brand new process to produce the intermediate state (3 / 4 hard state) high-conductive aluminum single wire and has the characteristics of being good in process stability, uniform in performance, good in conductivity, low in energy consumption and the like. A brand new process for producing the intermediate state (3 / 4 hard state) high-conductive aluminum single wire is provided.

Description

technical field [0001] The invention relates to an intermediate-state high-conductivity aluminum single wire and a manufacturing method thereof. Background technique [0002] In order to ensure the strength of the wire, at present, the conventional wire is made of duralumin. The duralumin wire has the advantages of high surface hardness and high strength, but its elongation is insufficient and its conductivity is relatively small. On the one hand, in order to improve the electrical conductivity of duralumin, it is necessary to improve the purity of the aluminum conductor or to take certain technological measures, which increases the cost. On the other hand, due to its insufficient elongation, when the hard aluminum wire is matched with the reinforcing core (such as steel core, composite material core), often due to inconsistent elongation, the aluminum wire breaks first and cannot fully exert the performance of the reinforcing core, resulting in The whole root breaking forc...

AI Technical Summary

Problems solved by technology

At present, the processing method of intermediate state (3 / 4 hard state) aluminum wire mainly adopts the traditional method of drawing first and then annealing. This method not only consumes a lot of energy for annealing, but also has poor product performance stability after annealing, and the fluctuation of a batch is relatively large. , product performance is difficult to be guaranteed

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