Consumable electrode preparation method and electroslag remelting method

The embodiment of the invention provides a consumable electrode preparation method and an electroslag remelting method, the consumable electrode preparation method comprises the steps that a plurality of small square billets are provided, the small square billets are prepared through a small square billet continuous casting process, and the sum of the cross sectional areas of the small square billets meets the preset area requirement; one end of each small square billet is welded to a set steel plate to prepare the consumable electrode for electroslag remelting, the cross section of the consumable electrode meets a preset distribution rule, and the position relation between the consumable electrode and the corresponding crystallizer meets a preset position relation. According to the technical scheme provided by the embodiment of the invention, the metal yield can be increased, the content of large-size inclusions in the consumable electrode is reduced, and the quality of the electroslag ingot is further impro