Electroslag remelting crystallizer and manufacturing method thereof

Abstract

The invention discloses an electroslag remelting crystallizer and a manufacturing method thereof. The crystallizer comprises a copper inner barrel, a steel outer barrel, a water inlet, a water outlet, an upper flange and a lower flange, wherein the upper flange and the lower flange are welded with the inner barrel and the outer barrel; the upper flange is composed of an outer circle and an inner circle, the outer circle is made of a steel material, and the upper half part of the inner circle is made of a copper material while the lower half part is made of a steel material; and the lower flange also has an outer circle and an inner circle, the outer circle is made of a steel material, and the upper half part of the inner circle is made of a steel material while the lower half is made of acopper material. Flanges in a composite structure mode of inner steel and outer copper are adopted, thus effectively solving the problem of easily generated cracks at the joint of steel and copper, solving the problem of overheat at the joint of the inner barrel of the crystallizer and the flange planes by utilizing the physical properties of rapid heat conduction, strong electric conduction and good plasticity of copper as well as the physical properties of strength, toughness and corrosion resistance and the like of steel, enhancing the heat exchange effect, ensuring the flange strength andprolonging the service life of the crystallizer.

Description

Technical field [0001] The invention belongs to the technical field of electroslag refining, and specifically relates to an electroslag remelting crystallizer and a manufacturing method thereof. Background technique [0002] The electroslag remelting crystallizer is a key component of the electroslag refining equipment. On the one hand, it contains the residual liquid that generates the required heat and contains the accumulated molten metal; on the other hand, it provides a suitable forming container for the solidification of the molten metal. The working conditions are relatively bad. In addition to withstand the drastic temperature difference, it still needs to change with the pressure of the contained metal and the pressure of the cooling water, so its quality has higher technical requirements, that is, the effect of heat and cold exchange when the metal is remelted and crystallized Good, high strength, no leakage. [0003] At present, the mold is usually made of red copper an...

AI Technical Summary

Problems solved by technology

Since the inner cylinder is made of copper and the outer cylinder is made of steel, the crystallizer of this structure is welded together by a steel flange, so it is easy to generate cracks at the copper-steel connection. , at the same time, the thermal conductivity of carbon steel is poor, which leads to poor heat exchange effect of the crystallizer and severely shortens the service life

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