Vacuum electroslag furnace

Abstract

The invention relates to a vacuum electroslag furnace, and belongs to the technical field of smelting equipment in the metallurgical industry. According to the technical scheme, the furnace comprisesa conductive material rod (1), a sealing cover (6), a smoke hood (7), a crystallizer (8) and a bottom water tank (9), wherein the upper end and the lower end of the smoke hood (7) are connected with the sealing cover (6) and the crystallizer (8) respectively through flanges and U-shaped clamps, the conductive material rod (1) is arranged above the sealing cover (6), and the bottom water tank (9) is arranged below the crystallizer (8); and the furnace is characterized in that seals are arranged between the conductive material rod (1) and the sealing cover (6), between the sealing cover (6) andthe smoke cover (7), between the smoke cover (7) and the crystallizer (8) and between the crystallizer (8) and the bottom water tank (9). The furnace has the beneficial effects that a common electroslag furnace can reach the vacuum sealing condition, and vacuum electroslag smelting can be carried out after vacuum pumping is carried out through a vacuum system; and when vacuum smelting is not needed, the corresponding seals are removed, and then the recovery is achieved.

Description

technical field [0001] The invention relates to a vacuum electroslag furnace, which belongs to the technical field of smelting equipment in the metallurgical industry. Background technique [0002] Vacuum electroslag furnace is an electroslag furnace in a vacuum environment. It has the advantages of extremely low gas content in the vacuum furnace and precise control of the composition. It also has the characteristics of high purity and good desulfurization effect. The smelting process is in a vacuum environment, which can eliminate the interference of [O][N][H] in the air and precisely control its content in molten steel. In the long run, the development prospect of vacuum electroslag furnace is relatively broad, and it will gradually replace ordinary electroslag furnace. [0003] At present, the existing common electroslag furnace mainly includes a conductive rod, a sealing cover, a smoke cover, a crystallizer, and a bottom water tank. The two ends of the smoke cover are r...

AI Technical Summary

Problems solved by technology

First of all, the surface of the dummy electrode is rough, the sealing is difficult, and the cost is high; secondly, changing from an ordinary electroslag furnace to a vacuum electroslag furnace cannot only seal the dummy electrode, and all interface parts of the ordinary electroslag furnace must be connected and sealed to achieve vacuum sealing. conditions of

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