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A kind of slab continuous casting chamfering crystallizer narrow surface copper plate

A technology of chamfering crystallizers and narrow-faced copper plates, which is applied in the fields of metal solidification and continuous casting, can solve problems such as processing costs and safety hindering the improvement of crystallizer structure, affecting logistics and contract order delivery time, and hindering the rapid development of crystallizers, etc. , to achieve the effect of eliminating crack defects, ensuring the cooling effect of chamfering, and ensuring good contact

Active Publication Date: 2018-07-06
XIXIA LONGCHENG SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem caused by the shrinkage of the molten steel volume during the crystallization process is not sufficiently considered. The shrinkage volume will cause poor heat conduction between the billet in the lower part of the mold and the inner wall of the narrow plate of the mold.
In order to avoid crack defects at the edge of the subsequent rolled steel plate, it is often necessary to perform corner cutting on the continuous casting slabs with corner transverse cracks and corner longitudinal crack defects, but this not only greatly increases the production cost, but also Reduced production efficiency, seriously affected the logistics of iron and steel enterprises and the delivery time of contract orders
[0004] On the other hand, safety considerations, processing difficulty and cost issues, as we all know, the crystallizer is the key equipment for billet continuous casting, its design and manufacturing quality directly affects the normal and stable continuous casting production, the mold copper plate processing difficulty It is conceivable that the processing of irregular or irregular mold copper plates (especially mold copper plates with curved surfaces) is even more daunting for processors. On the other hand, processing costs and safety are hindering molds from moving to a more reasonable structure. Important reasons for promotion
It hinders the rapid development of crystallizers, and even hinders the formation of divergent thinking of technicians in the technical field

Method used

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  • A kind of slab continuous casting chamfering crystallizer narrow surface copper plate
  • A kind of slab continuous casting chamfering crystallizer narrow surface copper plate
  • A kind of slab continuous casting chamfering crystallizer narrow surface copper plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 , 2 , 3, a slab continuous casting chamfering mold narrow-sided copper plate, including a large surface area 3 and a side chamfering area 2, the back of the large surface area and side chamfering is provided with one or more up and down through The cooling water tank, the longitudinal section of the working surface of the large surface area is in the shape of a broken line. The broken line shape is composed of a first broken line and a vertical line. The included angle between the first fold line and the side of the narrow copper plate 1 is 6 degrees. The length of the first fold line is 22% of the height of the crystallizer copper plate. Angle a is the angle between the working surface of the chamfering area on the side of the vertical line and the side of the narrow copper plate. The angle a1 is the angle between the working surface of the chamfering area on the side of the first fold line and the side of the narrow copper plate. The cha...

Embodiment 2

[0025] Embodiment 2: as figure 1 , 2, 3, a slab continuous casting chamfering mold narrow-sided copper plate, including a large surface area 3 and a side chamfering area 2, the back of the large surface area and side chamfering is provided with one or more up and down through The cooling water tank, the longitudinal section of the working surface of the large surface area is in the shape of a broken line. The broken line shape is composed of a first broken line and a vertical line, the angle between the first broken line and the side of the narrow copper plate 1 is 10 degrees, and the length of the first broken line is 31% of the height of the crystallizer copper plate, further The angle a is the angle between the working surface of the side chamfering area of ​​the vertical line and the side of the narrow copper plate, and the angle a1 is the angle between the working surface of the side chamfering area of ​​the first fold line and the side of the narrow copper plate. The c...

Embodiment 3

[0026] Embodiment 3: as figure 1 , 2 , 3, a slab continuous casting chamfering mold narrow-sided copper plate, including a large surface area 3 and a side chamfering area 2, the back of the large surface area and side chamfering is provided with one or more up and down through The cooling water tank, the longitudinal section of the working surface of the large surface area is in the shape of a broken line. The broken line shape is composed of a first broken line and a vertical line. The included angle between the first fold line and the side of the narrow copper plate 1 is 7 degrees. The length of the first fold line is 27% of the height of the crystallizer copper plate. Angle a is the angle between the working surface of the chamfering area on the side of the vertical line and the side of the narrow copper plate. The angle a1 is the angle between the working surface of the chamfering area on the side of the first fold line and the side of the narrow copper plate. The cha...

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Abstract

The invention discloses a narrow-faced copper plate of a slab continuous casting chamfering crystallizer, which includes a large surface area and a side chamfering area. The back of the large surface area and the side chamfering is provided with one or more cooling water tanks penetrating up and down. The longitudinal sectional view of the large-area working face is in the shape of broken lines. Under the action of chamfering, it is more beneficial for the steel billet to always stick to the inner wall of the crystallizer during the solidification process of molten steel.

Description

technical field [0001] The invention relates to the technical field of metal solidification and continuous casting, in particular to a copper plate with a narrow surface of a slab continuous casting chamfering crystallizer. Background technique [0002] With the development of metallurgical technology in the world, modern continuous casting technology continues to improve, and the types of castable steel continue to expand. Some high-alloy, high-quality, and high-crack-sensitive steel types have been continuously produced in the continuous casting production process of large iron and steel enterprises. One of the main technological advances is the development of large-section slab continuous casting technology. With the development of continuous casting technology of large section billet, the compression ratio of steel is increased, and the product quality of steel is improved. However, the adverse effect brought by the increase of the section of the slab is that the slab n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/059
Inventor 朱书成赵家亮黄国团廖春谊郭明源周彦峰
Owner XIXIA LONGCHENG SPECIAL MATERIALS CO LTD
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