Smelting control method of metal electroslag remelting furnace

Abstract

The invention discloses a smelting control method of a metal electroslag remelting furnace. The method is characterized by comprising the following steps: before smelting, firstly installing three position sensors used for detecting the position of an electrode in the metal electroslag remelting furnace; secondly before smelting and during smelting, detecting the position of the electrode by the position sensors, feeding the position of the electrode, detected by the position sensors, back to a data control processing system and then controlling executive devices to move a crystallizer to achieve automatic centering of the electrode under closed-loop control, wherein the three position sensors are arranged in a concentric circle along the axial lead of the crystallizer and are uniformly distributed and fixed on the upper surface of the crystallizer in a ring shape. The method has the advantages that the method can conduce to facilitating centering, reducing the phenomenon of failure of the crystallizer and prolonging the service life of the crystallizer.

Description

technical field [0001] The invention relates to the technical field of metal electroslag remelting and smelting; in particular, it relates to a metal electroslag remelting furnace. [0002] Background technique [0003] Metal electroslag furnace is a kind of metallurgical equipment that uses the resistance heat generated when the current passes through the slag as a heat source for smelting. Its structure mainly includes a furnace-shaped crystallizer as a whole, and a pillar on one side of the crystallizer. The arm is facing the crystallizer, and the electrode extending downward into the crystallizer is installed on the cross arm; it also includes a data control processing system for electrical control. [0004] Among them, the mold is the most critical part of electroslag remelting. The melting of electrodes, the refining of metals, the solidification and crystallization of molten metal, and the molding of ingots are all completed in the mold. The electroslag remelting cr...

AI Technical Summary

Problems solved by technology

In the existing electroslag smelting operation, the centering of the crystallizer and the electrode is done manually, which not only is cumbersome to operate, but also introduces human errors, resulting in large centering deviations

During the smelting process, the centering adjustment of the electrode and the crystallizer is also done manually under the continuous observation of the operator, which not only affects the use of production equipment, but also seriously reduces the production efficiency. Extract the corresponding size data information of the electrode and the crystallizer center during the smelting process, so it is difficult to control the relevant data of the smelting process in real time, and after a deviation occurs, the operator only adjusts the alignment of the electrode and the mold based on experience, which will inevitably cause secondary accidents , so the adjustment effect cannot be achieved

Poor alignment between the electrode and the crystallizer causes the mold to be heated unevenly, resulting in deformation and failure of the mold

Greatly shorten the service life of the crystallizer

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