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A device for improving the pourability of microalloyed steel during continuous casting

A micro-alloy steel and micro-alloy technology is applied in the field of devices for improving the pourability of the micro-alloy steel continuous casting process, which can solve the problems of clogging of the submerged nozzle, and achieve the improvement of the pourability, the increase of the nucleation rate and the low cost. Effect

Active Publication Date: 2019-04-23
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problem that the submerged nozzle is easily blocked in the existing titanium microalloy steel continuous casting process, and to provide a device for improving the castability of the microalloy steel continuous casting process to ensure smooth production

Method used

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  • A device for improving the pourability of microalloyed steel during continuous casting
  • A device for improving the pourability of microalloyed steel during continuous casting
  • A device for improving the pourability of microalloyed steel during continuous casting

Examples

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Embodiment 1

[0039] combine Figure 1-4 , the device for improving the castability of the microalloy steel continuous casting process in this embodiment includes a pouring mechanism and an electrode clamping mechanism.

[0040] The pouring mechanism includes a ladle 11 and a tundish 13. The ladle 11 is placed above the tundish 13. The interior of the ladle 11 communicates with the interior of the tundish 13 through the long nozzle 12; Used in conjunction with the stopper rod 10 , a retaining wall 15 and a retaining dam 16 are provided between the submerged nozzle 14 and the shroud 12 inside the tundish 13 .

[0041] The electrode clamping mechanism includes: a cylindrical pulse electrode 1, when the micro-alloy steel slab is poured by the continuous casting process, the pulse electrode 1 is placed in the micro-alloy molten steel in the tundish 13 and applies a pulse current to the micro-alloy molten steel; Holder 2, clamping piece 2 is used to clamp pulse electrode 1; energizing piece 3, ...

Embodiment 2

[0054] combine Figure 2-4 , the device for improving the castability of the microalloy steel continuous casting process in this embodiment has basically the same structure as in Embodiment 1, and further: the clamping part 2 includes two semicircular rings with folded edges, and two folded rings The circular arc part of the semicircular ring on the edge forms a clamping ring 201, and the clamping ring 201 is wrapped around the outer surface of the pulse electrode 1, and the corresponding flanged parts of the two semicircular rings with flanges are connected by the first bolt 7 , forming a clamping piece 202 .

[0055] In this embodiment, the clamping member 2 includes two semicircular rings with folded edges, and the circular arc parts of the two semicircular rings with folded edges form a clamping ring 201, and the clamping ring 201 is wrapped around the pulse electrode 1. The outer side of the two semicircular rings with hemming are connected by the first bolt 7 to form th...

Embodiment 3

[0057] combine Figure 2-4 The structure of the device for improving the castability of the microalloy steel continuous casting process of this embodiment is basically the same as that of Embodiment 2, and further: the energizing member 3 includes a energizing rod 301 and connecting pieces 302 connected to both ends of the energizing rod 301; The connecting piece 302 at one end of the power pole 301 is connected to a clamping piece 202 of the clamping member 2 through the second bolt 8 .

[0058]In this embodiment, the energizing member 3 includes a energizing rod 301 and a connecting piece 302 connected to both ends of the energizing rod 301, and the connecting piece 302 at one end of the energizing rod 301 is connected to a clamping piece 202 of the clamping member 2 through a second bolt 8 , so that the installation between the power pole 301 and the clamping member 2 is convenient, and it is convenient for on-site use.

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Abstract

The invention discloses a device for improving castability of micro-alloyed steel in a continuous casting process and relates to the field of continuous casting production of the micro-alloyed steel.The device comprises a casting mechanism and an electrode clamping mechanism; the casting mechanism comprises a steel ladle and a tundish; the steel ladle is arranged above the tundish; the inside ofthe steel ladle communicates with the inside of the tundish through a long nozzle; the electrode clamping mechanism comprises cylindrical pulse electrodes, clamping pieces, electrifying pieces and lengthening rods; when a micro-alloyed steel casting blank is cast with a continuous casting technology, the pulse electrodes are arranged in molten micro-alloyed steel in the tundish and apply pulse current on the molten micro-alloyed steel; the clamping pieces are used for clamping the pulse electrodes; one end of each electrifying piece is connected with the corresponding clamping piece and is connected with a pulse power supply; and one end of each lengthening rod is connected with the other end of the corresponding electrifying piece through an insulating block. The invention aims to overcome the defect that a submersed nozzle is prone to blockage in the existing continuous casting process of titanium micro-alloyed steel. By the aid of the device, smooth production is guaranteed.

Description

technical field [0001] The invention relates to the field of micro-alloy steel continuous casting production, and more specifically relates to a device for improving the castability of the micro-alloy steel continuous casting process. Background technique [0002] In the current pouring process using the continuous casting process, since the high melting point inclusions in the molten steel are easy to adhere to the inner wall of the submerged nozzle of the crystallizer, causing it to be blocked, the number of continuous casting furnaces for one tundish is relatively low. Production costs increased and production organization was greatly affected. Especially when casting continuous casting slabs with small cross-sections, the clogging phenomenon is more serious due to the small inner diameter of the submerged nozzle of the crystallizer. [0003] In order to improve the pourability of molten steel during continuous casting, some solutions have been proposed in the prior art....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/11B22D11/114
CPCB22D11/11B22D11/114
Inventor 朱正海韩震超陈良黄鑫鑫王建军常立忠周俐
Owner ANHUI UNIVERSITY OF TECHNOLOGY