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Horizontal continuous-casting electromagnetic agitating technology

A technology of electromagnetic stirring and horizontal continuous casting, which is applied in the field of iron and steel metallurgy, and can solve problems such as difficult discharge

Active Publication Date: 2007-06-13
衡阳华菱连轧管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, if the inclusions in molten steel are flushed into the crystallizer, it is difficult to discharge them by electromagnetic stirring

Method used

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  • Horizontal continuous-casting electromagnetic agitating technology
  • Horizontal continuous-casting electromagnetic agitating technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: The horizontal continuous casting electromagnetic stirring technology includes a water treatment system for cooling the electromagnetic stirrer, an electric control system for generating low-frequency power, and an industrial control system for setting and adjusting stirring parameters.

[0025] 1. At the beginning of billet casting, the heat of the billet 6 is transferred to the mixer body. Therefore, the cooling water system and control system of electromagnetic stirring should be started in advance.

[0026] 2. The body 4 of the electromagnetic stirrer in the second cooling zone is arranged 2m behind the crystallizer 3 of the horizontal continuous casting machine. Stirring parameters are set differently, and the industrial computer gives a signal to control the magnitude of the current to generate an alternating magnetic field to stir the molten steel in the billet 6 . The stirring current of the electromagnetic stirrer 4 in the second cooling zone is 0...

Embodiment 2

[0029] Embodiment 2: The horizontal continuous casting electromagnetic stirring technology includes a water treatment system for cooling the electromagnetic stirrer, an electric control system for generating low-frequency power, and an industrial control system for setting and adjusting stirring parameters.

[0030] 1. At the beginning of billet casting, the heat of the billet 6 is transferred to the mixer body. Therefore, the cooling water system and control system of electromagnetic stirring should be started in advance.

[0031] 2. The body of the electromagnetic stirrer 5 at the solidification end is arranged 4m in front of the casting roller 7 of the horizontal continuous casting machine. Stirring parameters are set differently, the industrial computer gives a signal to control the magnitude of the current to generate an alternating magnetic field, and stirs the 6 cores of the billet. The stirring current of the electromagnetic stirrer at the solidification end is 0-300A,...

Embodiment 3

[0034] Embodiment 3: The horizontal continuous casting electromagnetic stirring technology includes a water treatment system for cooling the electromagnetic stirrer, an electric control system for generating low-frequency power, and an industrial control system for setting and adjusting stirring parameters.

[0035] 1. At the beginning of billet casting, the heat of the billet 6 is transferred to the mixer body. Therefore, the cooling water system and control system of electromagnetic stirring should be started in advance.

[0036] 2. The body 4 of the electromagnetic stirrer in the second cooling zone is arranged 2m behind the crystallizer 3 of the horizontal continuous casting machine. Stirring parameters are set differently, and the industrial computer gives a signal to control the magnitude of the current to generate an alternating magnetic field to stir the molten steel in the billet 6 . The stirring current of the electromagnetic stirrer 4 in the second cooling zone is 0...

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Abstract

The present invention provides a horizontal continuous casting electromagnetic stirring technique. It includes water treatment system for cooling electromagnetic stirrer, electric control system for producing low-frequency power supply and working control system capable of setting and regulating stirring parameter. Said electromagnetic stirring technique can obviously raise central equiaxed crystal rate of casting blank (central equiaxed crystal zone diameter and casting blank diameter percentage).

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to an electromagnetic stirring technology used in horizontal continuous steel casting. Background technique [0002] Horizontal continuous casting is a special technology in continuous steel casting. The movement track of the billet is a horizontal line. The mold does not vibrate when the billet is drawn, but the billet machine carries the billet for "pull-reverse push-stop" Combined periodic motion. The main features of horizontal continuous casting are: the tundish and the crystallizer are sealed and docked, and the molten steel has no secondary oxidation; the billet is not subject to bending and straightening deformation, and is especially suitable for casting of steel types with strong crack sensitivity and steel with high alloy element content . [0003] The surface quality defects of horizontal continuous casting round billets mainly include cold snaps, wri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/115
Inventor 田汉蒲左著吕士忠石绍清
Owner 衡阳华菱连轧管有限公司
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