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A method for automatically avoiding seam-marked slabs in sector segments during quick change of tundish for continuous casting machine

A sector segment and continuous casting machine technology, which is applied in the field of slab processing, can solve the problems of affecting the precision of the stick gap and the effect of the adjustment force is not obvious, so as to reduce the maintenance cost of equipment, prolong the service life of the line, and reduce the tension and straightening torque Effect

Active Publication Date: 2021-07-09
BENGANG STEEL PLATES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large protection value of "force limit" has no obvious effect on the adjustment force of the sector section during quick change of tundish. A small "force limit" protection value has a significant effect on the adjustment force of the sector section during quick change of tundish, but it will affect the stick in normal production. Seam precision

Method used

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  • A method for automatically avoiding seam-marked slabs in sector segments during quick change of tundish for continuous casting machine
  • A method for automatically avoiding seam-marked slabs in sector segments during quick change of tundish for continuous casting machine
  • A method for automatically avoiding seam-marked slabs in sector segments during quick change of tundish for continuous casting machine

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Embodiment

[0022] Benxi Iron and Steel Works built a 2200mm continuous casting machine on December 1, 2008. This continuous casting equipment is a first-class machine with a metallurgical length of 35.055m, an arc radius of 9.5m, a billet width of 1000-2200mm, and a billet length of 9000mm. ~11000mm. After the production test in recent months, during the lifting of the quick-change avoidance of the joint mark of the segment, it is obvious that the clamping force of the frame of the segment is much smaller than before (50% lower), and the overall tension and straightening moment is also reduced to 50%-60% left and right, such as image 3 shown.

[0023] By improving the action mode of the sector section during the quick change and lifting of the seam mark, the purpose of increasing the clamping force of the sector section frame on the slab during the quick change of the tundish is greatly avoided, the pulling and straightening torque is reduced, and the casting machine problem is solved....

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Abstract

The invention discloses a method for a continuous casting machine to automatically avoid seam-marked slabs in the sector section during the quick changeover of the tundish. During the quick-change period, the seam-marked slabs in the sector section are collected for on-site signal monitoring after the quick-change ends and the casting machine starts. The actual position of the seamed slab in the segment, when the slab enters the corresponding segment, the segment is lifted by 1‑5mm according to the preset target position, so as to increase the roll gap of the segment and reduce the segment The purpose of the clamping force of the frame to the slab is that when the section of the slab is pulled out of the corresponding segment, the segment is pressed back to the normal casting position. The purpose of this invention is to reduce the clamping force of the segment frame on the slab by increasing the roll gap of the segment, so as to reduce the pulling and straightening moment, solve the problem that the casting machine cannot pull the slab, and at the same time protect the segment from excessive impact, Extend the online service life of the sector and reduce equipment maintenance costs.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a processing method for a slab. Background technique [0002] The continuous casting machine has developed rapidly since its inception, because compared with the traditional "die casting" process, it greatly simplifies the process of producing steel billets, saves a lot of energy, and can continuously cast steel billets on one unit. , can increase the metal yield rate, finished product rate, and can also reduce costs. [0003] Since the continuous casting machine can realize the quick change of the tundish during production, the number of continuous casting furnaces is greatly increased in one casting cycle, and the continuous production of more furnaces is realized, which fundamentally changes the working conditions of workers and improves productivity accordingly. However, due to the continuous casting machine during the quick change of the tundish, the casting speed of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/16B22D11/043
CPCB22D11/043B22D11/16
Inventor 富君普孟庆辉安晓东李由鮑振东张同宇马铁刚
Owner BENGANG STEEL PLATES
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