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Continuous slab casting method

A slab and continuous casting technology, which is applied in the field of continuous casting for slabs, can solve problems such as inability to completely remove center segregation

Active Publication Date: 2017-09-26
浦项股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is suitable for suppressing the generation of central segregation (4) and solidification shrinkage cavity (3), but there is a problem that the central segregation (4) and solidification shrinkage cavity (3) cannot be completely removed

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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, but will be realized in various shapes. However, the embodiments make the disclosure of the present invention complete and are provided to fully inform those skilled in the art of the scope of the present invention. Like reference numbers in the figures refer to like elements.

[0034] Figure 3a is a view showing the position of the submerged nozzle in the crystallizer in general continuous casting equipment, Figure 3b is a view showing a state where a position of a submerged nozzle changes in a mold applied to a continuous casting method for slabs according to an embodiment of the present invention, Figure 4 Showing the flow and temperature analysis results of molten steel in a mold applied to a continuous casting method for slabs according to an embodiment of th...

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Abstract

The present invention relates to a continuous slab casting method for controlling positions of segregation and a shrinkage cavity generated in a slab, and a continuous slab casting method according to one embodiment of the present invention comprises the steps of: primarily cooling ingot steel by a mold while injecting the ingot steel into an eccentric area in the thickness direction of a slab from the center portion inside the mold; and spraying cooling water at the surface of the slab and secondarily cooling the same, while drawing the slab, which is primarily cooled by the mold.

Description

technical field [0001] The present invention relates to a continuous casting method for a slab, and more particularly, to a continuous casting method for a slab that controls the position of shrinkage cavities and segregation generated within the slab. Background technique [0002] Generally, in steel mills, slabs that are semi-finished products are manufactured in a continuous casting process using molten steel produced through the ironmaking process and steelmaking process, and the slabs are rolled to produce coils of the thickness required by consumers . [0003] figure 1 is a view schematically showing a general continuous casting plant, and figure 2 is a schematic diagram showing the solidified structure of a slab produced by a general continuous casting facility. [0004] Such as figure 1 As shown in , molten steel (1) refined during steelmaking is contained in a ladle (10), moved to a continuous casting plant and then positioned on a tundish (20). In addition, t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/124B22D11/22B22D11/055
Inventor 权祥钦韩尚佑元泳穆
Owner 浦项股份有限公司
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