Continuous casting crystallizer copper plate design method for improving electromagnetic stirring efficiency

A continuous casting mold and electromagnetic stirring technology, which is applied in computer-aided design, design optimization/simulation, calculation, etc., can solve the problems that the alternating magnetic field cannot completely penetrate the copper plate, the electromagnetic stirring efficiency is low, and the magnetic field shielding effect is large. Achieve the effect of reducing shielding effect, reducing solidification defects and improving steel quality

CN113688470APending Publication Date: 2021-11-23UNIV OF SCI & TECH BEIJING
0 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-11-23

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a continuous casting crystallizer copper plate design method for improving electromagnetic stirring efficiency, and belongs to the technical field of copper plate design. The method comprises the following steps: determining the thickness of an insulating layer through a continuous casting solidification heat transfer model, and determining the position of the insulating layer through an electromagnetic field model, thereby arranging the insulating layer in a traditional continuous casting crystallizer copper plate, so that the eddy intensity of the copper plate under the crystallizer electromagnetic stirring condition is reduced, and the shielding effect of the crystallizer on an alternating magnetic field is reduced. The penetrating power of the alternating magnetic field is improved, and the power consumption is reduced; electromagnetic stirring efficiency of the crystallizer is improved, and superheat of molten steel is quickly dissipated; the isometric crystal rate of a continuous casting blank is increased, and the center segregation defect of the casting blank is reduced. The method is simple and easy to implement and remarkable in effect.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of copper plate design, in particular to a copper plate design method for a continuous casting crystallizer that improves the efficiency of electromagnetic stirring. Background technique

[0002] During the continuous casting production process, the high-temperature molten steel in the tundish is immersed into the crystallizer through the submerged nozzle. Under the cooling effect of the copper plate, the surface temperature of the continuous casting slab decreases rapidly, and the crystal grains start to nucleate, and gradually grow from the surface to the core in the form of columnar crystals. The continuous casting slab in the middle and lower part of the crystallizer forms a shell with a certain thickness, and enters the secondary cooling zone under the action of the tension leveler. Under the condition of water mist cooling, the surface temperature of the slab gradually decreases, and the overheating of...

Examples

Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0035] The invention provides a method for designing a copper plate of a continuous casting crystallizer to improve the efficiency of electromagnetic stirring.

[0036] Such as figure 1 As shown, the method provides an insulating layer in the copper plate of the traditional continuous casting mold. Due to the existence of the insulating layer, the eddy current intensity of the copper plate under the condition of alternating magnetic field is significantly reduced, as shown in figure 2 As shown, thereby improving the penetrating ability of the alternating magnetic field, increasing the efficiency of electromagnetic stirring, reducing power consumption, improving solidification defects of continuous casting slabs, and improving steel quality.

[0037] Th...