Bright oxygen-free copper flat profile crystallizer

Abstract

The invention discloses a bright oxygen-free copper flat profile crystallizer which comprises a crystallizer body composed of a plurality of side walls. A crystallizing channel is formed by the side walls in a surrounded mode, and each side wall is provided with a cooling channel. The cooling channels comprise multiple horizontal cooling channels and two vertical cooling channels. The cooling channels further comprise horizontal through hole plugging columns for sealing the horizontal cooling channels and vertical through hole plugging columns for sealing the vertical cooling channels. Each vertical through hole plugging column comprises a fixed-connection column body and a through hole sealing plug block arranged on the fixed-connection column body. The section shape of the horizontal through hole plugging columns is identical with that of the horizontal cooling channels, and the section shape of the through hole sealing plug blocks is identical with that of the vertical cooling channels. According to the bright oxygen-free copper flat profile crystallizer provided by the invention, the mechanical strength of the bright oxygen-free copper flat profile crystallizer is improved, the cooling channels can be evenly distributed, and thus the adverse influences that hot spots occur or local temperature gradient is too high for the crystallizer and cast blanks are reduced.

Description

technical field [0001] The invention relates to the technical field of continuous casting production of oxygen-free copper rods, in particular to a crystallizer for bright oxygen-free copper flat sections. Background technique [0002] Upward-drawing copper continuous casting machine is the upward-drawing oxygen-free copper rod continuous casting unit. The copper upward-drawing continuous casting machine is mainly used to produce long-length bright oxygen-free copper tubes and long-length bright oxygen-free copper slab profiles. The copper upward continuous casting machine can directly use electrolytic copper continuous casting to produce rods, pipes, slabs or other special-shaped materials of different specifications; the copper upward continuous casting machine is divided into 2000 tons, 3000 tons and 4000 tons according to the annual production capacity. ~60000 tons and 8000~12000 tons four grades. Compared with the traditional copper ingot rolling to produce black coppe...

AI Technical Summary

Problems solved by technology

However, on the one hand, the above-mentioned split type crystallizer consumes a lot of cooling water during metal casting, because the cooling channel sealing performance of the mold is insufficient, and part of the cooling water will inevitably leak; In the air gap area, a part of the cooling water is in an open fire state, resulting in a rapid temperature rise of the cooling water, which not only increases the energy consumption of metal casting, but also inevitably produces some ingot quality defects

However, the integral mold is not only difficult to process the cooling channel, but the cooling channel of the integral mold is usually a surface cooling structure, which not only affects the mechanical strength of the mold, but also causes mold and slab to appear due to the uneven distribution of cooling channels. Hot spots or local temperature gradients are too large; hot spots in the crystallizer are easy to wear, and places with excessive temperature gradients are easy to deform, which affects the service life of the crystallizer

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