Upward continuous casting technology for large-load electro-conductive copper bus bars

Abstract

The invention discloses an upward continuous casting process for a large-load conductive copper busbar, which comprises the following steps: step 1, preparing recycled compressed copper material and electrolytic copper plate; step 2, feeding the electrolytic copper plate and recovered compressed copper material according to the proportion Melting and mixing; Step 3: Separating the unmelted recovered compressed copper material and electrolytic copper plate, so that the molten copper water enters the insulation cavity; Step 4: Through the siphon effect, the molten copper water in the insulation cavity enters the upper lead from the bottom In the casting crystallizer, cooling and crystallization is carried out through the cooling water system in the upward continuous casting crystallizer; step 5, the crystallized upward continuous casting copper material in the upward continuous casting mold is drawn from the upward continuous casting through the drawing and pulling device The top of the crystallizer is drawn out, and the up-drawing continuous casting copper material is drawn at a speed of 120-160 mm per minute, and finally the up-drawing continuous casting copper material is packaged into rolls. The invention can realize the recycling and reuse of copper materials, and can ensure good continuity of the production process and high production efficiency.

Description

technical field [0001] The invention relates to the technical field of continuous casting of oxygen-free copper rods by an upward drawing method, in particular to an upward continuous casting process of a large-load conductive copper busbar. Background technique [0002] The production process of large-load conductive copper busbar copper rods in the prior art is mainly semi-continuous casting process and horizontal continuous casting process. The oxygen content in the billet obtained by semi-continuous casting process and horizontal continuous casting process is not easy to control, and the produced cast The pass rate of billets is low; and the cast billets produced by semi-continuous casting process and horizontal continuous casting process need to be rolled to obtain finished products. The traditional rolling process of large-load conductive copper busbar copper rods mainly includes the following steps : first heat the ingot, then hot-roll the ingot, then straighten the i...

AI Technical Summary

Problems solved by technology

[0002] The production process of large-load conductive copper busbar copper rods in the prior art is mainly semi-continuous casting process and horizontal continuous casting process. The oxygen content in the billet obtained by semi-continuous casting process and horizontal continuous casting process is not easy to control, and the produced cast The pass rate of billets is low; and the cast billets produced by semi-continuous casting process and horizontal continuous casting process need to be rolled to obtain finished products. The traditional rolling process of large-load conductive copper busbar copper rods mainly includes the following steps : first heat the ingot, then hot-roll the ingot, then straighten the ingot, rough roll the straightened ingot, make the ingot size moderate through drawing, and then squeeze and re-roll the ingot. One-time drawing to form it, and finally annealing treatment for drawing and straightening of the final product

The production process of the above-mentioned large-load conductive copper busbar copper rod has many procedures and is relatively complicated, with high energy consumption, low production continuity and production efficiency, large production input costs, high material waste rate, low yield rate, and production It is easy to shorten the service life of the crystallizer during the process