Technology for producing single-crystal conductive copper rod with upward continuous casting method

Abstract

The invention discloses a technology for producing a single-crystal conductive copper rod with an upward continuous casting method. The technology comprises steps as follows: an electrolytic copper raw material is put in a closed mixing melting furnace for melting, aluminum-antimony alloy powder, europium oxide powder and beryllium-aluminum alloy powder are added to a molten copper liquid, nitrogen and carbon monoxide mixed gas is introduced into the closed mixing melting furnace through a ventilation inlet in the bottom of the closed mixing melting furnace, and the mixed gas is discharged from a ventilation outlet in the top of the closed mixing melting furnace; a molten mixture is transferred into an upward continuous casting melting furnace and is enabled to enter an upward continuous casting crystallizer under the siphoning action, a crystallized conductive copper rod in the upward continuous casting crystallizer is drawn out of the top of the upward continuous casting crystallizer by a drawing device, and finally, the prepared conductive copper rod is packaged into coils. Compared with a polycrystalline conductive copper rod, the produced single-crystal conductive copper rod has the advantages that elongation percentage can be increased by 60%-80%, and specific resistivity can be reduced by 15%-20%.

Description

technical field [0001] The invention relates to the technical field of copper processing technology, in particular to a production process of a single crystal conductive copper rod up-lead continuous casting method. Background technique [0002] Single crystal conductive copper is a new type of conductor material compared to polycrystalline conductive copper. Since the lateral grain boundaries are eliminated in the metal microstructure, the conductivity of the conductive copper and the protection of signal transmission can be significantly improved. Authenticity; in terms of specific elongation and electrical conductivity, compared with polycrystalline conductive copper rods, the elongation of single crystal conductive copper can be increased by 60% to 80%, and the resistivity can be reduced by 15% to 20%, which can be widely used In audio-visual equipment, high-definition television and other electronic information related fields. [0003] The production of single-crystal ...

AI Technical Summary

Problems solved by technology

[0003] The production of single crystal conductive copper mainly adopts the method of combining directional solidification technology and continuous casting technology; in the prior art, single crystal conductive copper is mainly processed and produced by horizontal continuous casting technology, and the casting obtained by horizontal continuous The oxygen content in the slab is not easy to control, and the qualified rate of the slab produced is low; and the slab produced by the horizontal continuous casting process needs to be rolled to obtain the finished product