Device using electromagnetic induction water-cooled kerf type crystallizer as ingot mold

Abstract

The invention discloses a device using an electromagnetic induction water-cooled kerf type crystallizer as an ingot mold, and extra-thick steel plate raw material meeting requirements of ingot internal quality and compression ratio can be obtained through the device. The device using the electromagnetic induction water-cooled kerf type crystallizer as the ingot mold is composed of an electromagnetic induction device, the water-cooled kerf type crystallizer, filling material and an auxiliary mechanism, wherein the electromagnetic induction device comprises two or three groups of induction coils, the water-cooled kerf type crystallizer comprises a water-cooled chassis capable of lifting vertically, and a four-side condensation wall with hole gaps formed in the wall face, the filling material is filled in the hole gaps formed in the four-side condensation wall, magnetic permeability is increased, steel leakage is prevented, and the auxiliary mechanism comprises a frame arranged outside the induction coils, an auxiliary electromagnetic induction device and a drive mechanism driving the water-cooled chassis to left vertically. The device using the electromagnetic induction water-cooled kerf type crystallizer as the ingot mold effectively improves the magnetic permeability of the ingot mold, makes full use of magnetic efficiency, and reduces power consumption amount of the induction device; the device using the electromagnetic induction water-cooled kerf type crystallizer as the ingot mold is favorable for molding ingots which are compact in interior organization, little in segregation, and little in inclusions; and the device using the electromagnetic induction water-cooled kerf type crystallizer as the ingot mold is easy to operate, safe, and not prone to damage.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and casting, and in particular relates to a device for using an electromagnetic induction water-cooled slotted crystallizer as an ingot mould. Background technique [0002] Extra-thick steel plates are often used in shells of atomic power stations, bases of high-rise buildings, offshore oil platforms, high-pressure vessels, aircraft carrier armor plates, heavy chemical reaction towers, hydropower, thermal power, wind turbine bases, etc., which are 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, some countries in Europe, the United States and Japan have invested a lot of time and energy in research on the production of extra-thick plate raw materials, and have made breakthroughs. [0003] At present, conventional ingot molds are mostly cast iron molds. When using them to pr...

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Problems solved by technology

[0003] At present, conventional ingot molds are mostly cast iron molds. When using them to produce steel ingots, due to the solidification and shrinkage of molten steel, an air gap is generated between the ingot mold and the steel ingot, which seriously affects the heat transfer conditions. Most of the cast steel ingots have congenital inverted V-shaped segregation, Casting defects such as center segregation and center looseness; the water cooling strength at the bottom of the directional solidification technology device is relatively strong, and the head is equipped with a heat preservation cover, which is conducive to the production of columnar crystals, but there is a solute-enriched layer on the top of the ingot cast by it, which is difficult to clean , which also affects its popularization and application; while the ordinary water-cooled crystallizer device has enhanced the cooling capacity, but there is still no external heat source, the upper part of the ingot is insufficiently fed, and it is difficult to ensure the internal quality when casting a larger ingot

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