Continuous casting and rolling and boronizing method and device of conductive aluminium alloy rod

Abstract

The invention discloses a continuous casting and rolling and boronizing method and device of a conductive aluminium alloy rod. The continuous casting and rolling and boronizing method of the conductive aluminium alloy rod comprises the following steps that step 1, industry pure aluminum is heated and melted in a smelting furnace, when the temperature of aluminum melt reaches 730-750 DEG C, the aluminum melt is poured into a holding furnace from the smelting furnace through a flow discharging groove; step 2, alloying components of the aluminum melt in the holding furnace are subjected to purification treatment; step 3, the aluminum melt is discharged through the flow discharging groove and is subjected to continuous feeding of A1-B intermediate alloy wire rod at the end, near the holding furnace, of the flow discharging groove, and thus the aluminum melt makes sufficient contact with the A1-B intermediate alloy wire rod and is reacted with the A1-B intermediate alloy wire rod in the flow discharging groove and enters an online gas-freeing device with a slag discharging hole arranged on the bottom; step 4, the aluminum melt after still standing enters a ceramic filtering device through the flow discharging groove and is filtered, then the filtered aluminum melt enters a horizontal casting system through a casting flow groove and is poured into a continuous casting machine, and aluminium alloy wirebar is formed and the aluminum melt is subjected to continuous separation; and step 5, a aluminium alloy rod is obtained through continuous roll forming, the aluminium alloy rod is cooled by an online cooling device, and then the cooled aluminium alloy rod is winded into a coil rod.

Description

technical field [0001] The invention relates to the field of aluminum alloy preparation, in particular to a method and device for continuous casting and rolling of conductive aluminum alloy rods and boronization treatment. Background technique [0002] my country has a vast territory and unbalanced development. The western part is rich in resources and backward in industry; the eastern coastal area is rich in industry but scarce in resources, especially electric power resources. National power transmission from west to east, to achieve long-distance, large-capacity, long-span new power transmission In order to improve power safety and reduce transmission losses, high-conductivity aluminum and aluminum alloy wires are required. [0003] At present, aluminum and aluminum alloy wires are mainly used as conductors in high-voltage and ultra-high-voltage (≥110KV) overhead lines in my country. Foreign countries use ultra-high-purity, high-purity, medium-high-purity and medium-low-...

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problem of incomplete boronization of existing conductive aluminum alloys during the boronation process, poor puffing effect, the need for regular shaving furnaces to affect continuous production, and the existing boronation methods that make aluminum In order to solve the problem of low product pass rate due to uneven melt composition, a continuous casting and rolling and boronization treatment method for conductive aluminum alloy rods is provided to realize on-line purification of aluminum melt during continuous casting and rolling of conductive aluminum alloy rods, and improve The boronization effect of the solution, and the composition of the aluminum alloy after boronization by this method is uniform, and the qualified rate is high

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