Cooling mold and method for cooling steel ingot

Abstract

The invention provides a cooling mold and a method for cooling a steel ingot. The cooling mold comprises a pouring chassis and condensation walls, and each condensation wall comprises at least two cooling layers which are vertically arranged in sequence. The cooling mold further comprises at least two pairs of electromagnetic induction components which are arranged on the outer side of the condensation walls, each pair of the electromagnetic induction components are symmetrically arranged on the two sides of a casting cavity, and each cooling layer is provided with at least one pair of electromagnetic induction components; each electromagnetic induction component comprises at least two pairs of coils which can be connected to the corresponding condensation wall in a sliding manner, and the two coils in each pair of the coils are oppositely arranged in parallel; among all the electromagnetic induction components, at least one pair of the coils are vertically arranged, at least one pair of the coils are horizontally arranged, and all the horizontally arranged coils are located between center lines of all the vertically arranged coils; and the two ends of all the coils are sequentially opposite to each other or sequentially connected end to end to form a semi-closed or closed rectangle in an enclosing manner. According to the cooling mold, molten steel can be stirred in the horizontal direction and in the vertical direction separately, and the quality of steel ingots is improved.

Description

technical field [0001] The invention relates to the technical field of metallurgical casting, in particular to a method for cooling molds and cooling steel ingots. Background technique [0002] Extra-thick plates are often used in nuclear power station shells, high-rise building bases, offshore oil platforms, high-pressure vessels, aircraft carrier armor plates, heavy chemical reaction towers, hydropower, thermal power, wind turbine bases, etc., which belong to high performance, high purity, and high added value. Products, most of which require ultrasonic flaw detection, and some also require Z-direction performance. At present, there are mainly the following sources for extra-thick plate blanks: [0003] 1. In the traditional cast iron ingot mold, when producing steel ingots, molten steel is injected into the cast iron ingot mold, and the steel ingot is cooled under natural environmental conditions, the cooling intensity is low, the solidification speed is slow, the solidi...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problem of unsatisfactory quality of extra-thick plate steel ingots, the invention proposes a cooling mold and a method for cooling steel ingots, so that the molten steel can be solidified under the condition of a magnetic field, and the molten steel can be stirred from the horizontal and vertical directions respectively. Obtain the ideal equiaxed crystal ratio and improve the quality of the ingot

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