Method for controlling thickness of variable-cross-section casting slag bath in electroslag smelting casting

Abstract

According to the method for controlling the thickness of the variable-cross-section casting slag pool in the electroslag smelting casting process, a blocking type crystallizer is used at the front end with the cross section being in transition from large to small and is an independent embedding unit, and one or more blocking type crystallizers can be embedded; a blocking crystallizer is embedded into a slag pool, the slag pool is divided into two or more areas, one area is a transition area, the slag pool continues to be transited to a small-section area along with casting, and the other non-transition areas of the slag pool are naturally cooled and solidified and do not be transited to the small-section area; the blocking type crystallizer is fixed on the main body crystallizer through mechanical connection, and the height position of the blocking type crystallizer is adjustable; one of the slag bath thickness control methods is to adjust the volume of the transition slag bath through the application position of the blocking crystallizer; the second slag pool thickness control method is to adjust the volume of the transition slag pool through the blocking height; the blocking type crystallizer is of an independent water cooling structure.

Description

technical field [0001] The invention relates to a method for controlling the slag pool of electroslag melting and casting in the field of casting, and particularly provides a method for controlling the thickness of the slag pool of electroslag melting and casting variable-section castings. Background technique [0002] Electroslag casting is a casting method that integrates melting, refining, solidification and near-net forming, and is one of the important ways to produce high-quality castings. The process feature of electroslag casting is that the electrode is continuously melted and refined by the molten slag (ie slag pool) in the mold, and the molten metal passes through the slag pool and enters the mold for continuous solidification. [0003] The slag pool is the core part of the electroslag casting process. In order to ensure reasonable casting parameters and consistent metallurgical quality, it is desirable to maintain the same slag pool thickness throughout the casti...

AI Technical Summary

Problems solved by technology

In terms of the thickness control of the slag pool of variable cross-section castings in electroslag casting, a complete solution has not yet been proposed

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