Electroslag remelting device and method for preventing segregation of remelted alloy

Abstract

The invention discloses an electroslag remelting device and method for preventing segregation of a remelted alloy, and belongs to the technical field of electroslag remelting. The electroslag remelting device comprises a crystallizer, a power supply and a magnetic field unit; the crystallizer sequentially comprises a first crystallizer, a transition crystallizer and a second crystallizer from top to bottom; the first crystallizer is connected with the transition crystallizer in an insulating manner, and the transition crystallizer is connected with the second crystallizer in an insulating manner; in a slag bath, a first slag bath layer is arranged at the position corresponding to the bottom of the first crystallizer, a second slag bath layer is arranged at the position corresponding to the top of the second crystallizer, and a third slag bath layer is arranged at the bottom layer; the power supply comprises a first power supply and a second power supply; a consumable electrode is connected with the first slag bath layer through the first power supply; and the second slag bath layer is connected with the third slag bath layer through the second power supply. According to the electroslag remelting device and method for preventing the segregation of the remelted alloy, the problem that molten metal is bonded with the crystallizer can be effectively avoided, meanwhile, the remelting efficiency is improved, and the solidification quality of an electroslag ingot is improved.

Description

technical field [0001] The invention belongs to the technical field of electroslag remelting, and more specifically relates to an electroslag remelting device and a method thereof for preventing segregation of remelted alloys. Background technique [0002] Many high-quality materials such as high-temperature alloys, high-speed steel, and stainless steel are produced by electroslag remelting technology. However, electroslag remelting technology also has many advantages, such as low remelting efficiency and high production costs, which reduce the competitiveness of products to a certain extent. For this reason, the rapid electroslag remelting technology was developed, which broke through the rule that the ratio of the melting speed to the diameter of the electroslag ingot does not exceed 1, and the remelting speed was greatly increased. The core of rapid remelting is that the diameter of the slag pool is larger than that of the electroslag ingot. However, this technology has...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low remelting efficiency and poor solidification quality of electroslag ingots in the electroslag remelting device or method in the prior art, the present invention provides an electroslag remelting device and method for preventing segregation of remelted alloys; The magnetic field is set in the slag pool of the melting part and the metal molten pool forming the electroslag ingot, and the power supply for heating the slag and melting the electrode and the power supply for refining the solidified structure are set independently of each other, thus effectively solving the problem of the existing technology. The problems of low electroslag remelting efficiency and poor solidification quality of electroslag ingots

Images