Non-electroslag remelting type clean metal ingot mould

Abstract

The invention discloses a non-electroslag remelting type clean metal ingot mould comprising an ingot mould body and a heat preservation cap arranged on the ingot mould body; an isolation and heat insulation mechanism is vertically arranged in the ingot mould body and divides the space in the ingot mould body into a plurality of independent die cavity units; and the die cavity units are distributed in two rows in the ingot mould body. Because the isolation and heat insulation mechanism is arranged in the ingot mould body and divides the space in the ingot mould body into a plurality of independent die cavity units, most of impurities and segregates in liquid metals are enriched in the part in contact with the isolation and heat insulation mechanism in the course of directional solidification and crystallization of the liquid metals and the enriched alloy segregates and the impurities can be easily eliminated by utilizing flame or other processing methods. Thus, the transference and theelimination of the segregates and the impurities in ingots can be realized, and the purpose of purifying the ingots is reached.

Description

technical field [0001] The invention belongs to the technical field of metallurgical casting equipment, in particular to a non-electroslag remelting clean metal ingot mold. Background technique [0002] In the known technology, the electroslag furnace remelting technology was used to realize clean steel production in the past. The molten slag is contained in the copper water-cooled crystallizer, and one end of the consumable electrode is inserted into the slag. The consumable electrode, slag pool, molten metal pool, steel ingot, and bottom water tank form a loop through a short mesh wire and a transformer. During the power-on process, the slag pool emits Joule heat, which gradually melts the end of the consumable electrode, and the molten metal gathers into droplets, passes through the slag pool, falls into the crystallizer, and forms a molten metal pool, which is rapidly solidified by water cooling to form a steel ingot . In the stage of the droplet formation at the elect...

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Problems solved by technology

Harmful elements (sulfur, lead, antimony, bismuth, tin) in steel can be effectively removed by steel-slag reaction and high-temperature gasification, but re-melting steel ingots requires a lot of electric energy, which also restricts large-scale industrial production, and slag Contains a large amount of calcium fluoride, which pollutes the environment, and must be equipped with dust removal and defluorination devices

In addition, the efficiency is very low, especially the damage to the crystallizer caused by the electric arc is also very serious. A crystallizer mold can only smelt dozens of furnaces of steel by remelting in an electroslag furnace, which increases the production cost.

Ordinary ingot casting method can not achieve cleaning effect

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