A rapid fusion welding method of consumable electrode and dummy electrode of electroslag remelting furnace

Abstract

The invention belongs to the field of preparing of a consumable electrode of an electroslag refining furnace, and particularly relates to a fast mutual fusion welding method of the consumable electrode and a fake electrode of the electroslag refining furnace. The method concretely comprises the following steps of (1) manufacturing the fake electrode for standby; (2) determining the length, inserted under the molten steel level of an ingot mould, of the fake electrode and marking; (3) pouring the consumable electrode, slowly vertically inserting the well prepared fake electrode at the central part of an upper port of the ingot mould when the molten steel is poured to the position away from the upper port of the ingot module by 400-200mm, finely tuning the concentricity of the fake electrode and the ingot mould and enabling a pourer to adopt normal feeding operation; (4) demoulding. The consumable electrode and the fake electrode are mutually fused and welded together, the combining surface is large, the welding is firm and compact without loosening, and the poor contact problem is avoided; equipment such as an electric welding machine and materials are not needed, no specially-assigned persons are required for electrowelding, the operation is simple and the control is easy.

Description

technical field [0001] The invention belongs to the field of preparation technology of consumable electrodes of electroslag remelting furnaces, and in particular relates to a rapid mutual fusion welding method of consumable electrodes and dummy electrodes of electroslag remelting furnaces. Background technique [0002] The preparation of the consumable electrode of the traditional electroslag remelting furnace is extremely complicated, the preparation cycle is long, the operation is difficult, and the quality control of the preparation is difficult. The preparation process of the consumable electrode is: continuous casting or die casting, and the continuous casting After cutting (some also welded several continuous casting parts together to increase the cross-sectional area), one end of them was polished flat, and then the dummy electrode was welded; Several die-cast bad electrodes are welded together to increase the cross-sectional area), and then the end face is polished f...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the deficiencies of the prior art, and aims to provide a rapid mutual fusion welding method of the consumable electrode and the dummy electrode of the electroslag remelting furnace. The problem of long cycle time, equipment, materials and labor is required, and at the same time, it can also solve the production problem caused by the non-close contact between the end plane of the dummy electrode and the end plane of the consumable electrode in the electric welding welding consumable electrode and dummy electrode process. and potential safety hazards, as well as the problem of large waste caused by the need to cut off the shrinkage cavity at the end of the consumable electrode during welding with the traditional consumable electrode and the dummy electrode

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