Copper rod production process and crystallizer

Abstract

The invention belongs to the technical field of copper rod production, and particularly relates to a copper rod production process which adopts an up-drawing method production process and mainly comprises the following steps that a crystallizer is inserted into molten copper; then a guide rod is inserted into the crystallizer from top to bottom, and the guide rod is enabled to be in contact with the molten copper; the guide rod is pulled upwards, and winding is conducted after the copper rod meets the standard; and before the crystallizer is inserted into the molten copper, the lower end of the crystallizer is sleeved with a copper isolation sleeve, so that a graphite pipe and a protective sleeve of the crystallizer are wrapped. Theoretically, the method can effectively prevent graphene flakes from entering the molten copper and affecting the quality of the copper rod. In addition, the crystallizer is included and comprises a crystallizer body, the graphite pipe arranged on the lower portion of the crystallizer body and the protective sleeve arranged on the periphery of the graphite pipe in a sleeving mode, the crystallizer further comprises the copper isolation sleeve arranged on the lower portion of the crystallizer body in a sleeving mode, the graphite pipe is isolated from the peripheral space through the isolation sleeve, and therefore, the graphene flakes are prevented from being extruded at the bottom of the graphite pipe and entering the copper rod in the production process.

Description

technical field [0001] The invention belongs to the technical field of copper rod production, and specifically includes a copper rod production process and a crystallizer. Background technique [0002] The copper wire in the cable is formed by rolling and drawing the copper rod for many times. In the process of the copper rod changing from thick to thin, only the cross section of the copper rod changes, and the material does not increase or decrease. Therefore, the copper rod in the copper rod All ingredients remain in the final copper wire. In the existing production process, the copper wire often breaks during the wire drawing process. The analysis found that there are graphene particles in the section. This is because the graphene flakes are The copper liquid enters the crystallizer, resulting in the production of copper rods containing graphene particles. [0003] At present, in the process of producing copper rods by the upward drawing method, in order to prevent the ...

AI Technical Summary

Problems solved by technology

In the existing process, a part of the graphene flakes is removed first, and then the crystallizer is inserted downward into the copper liquid. Since both the graphite tube and the protective sleeve have a bottom surface with a certain area, the graphene scales will be pressed into the copper liquid. During the up-leading process, the flow of the copper liquid will cause part of the graphene flakes to flow into the graphite tube, resulting in the above-mentioned defective copper rods, which will seriously reduce the quality of the copper rods, cause troubles for the production of copper wires, and increase the production cost of the enterprise , and will affect the conductor performance of the final copper wire produced

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