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Square billet continuous casting starting method

A billet and continuous casting technology, applied in the field of steel manufacturing, can solve problems such as difficulty in ingot pulling, increase production cost and labor intensity, and break out steel, so as to save preparation time, prevent cold material from falling into the gap, and simplify operation. Effect

Active Publication Date: 2019-10-29
LIUZHOU IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by this method is to provide a starting method for continuous casting of square steel billets, so as to solve the problems of cracks and breakouts at the beginning of continuous casting of square billets, difficulty in dummy ingots, and increased production costs and labor intensity.

Method used

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  • Square billet continuous casting starting method
  • Square billet continuous casting starting method
  • Square billet continuous casting starting method

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, this method embodiment is described in further detail:

[0026] The starting method of continuous casting of square billets is taken as an example of HRB400E series steel grades planned to be produced by a 7-strand billet continuous casting machine with a cross-section of 165mm×165mm: when preparing for production, after each flow is filled with dummy ingots, cover the crystallizer with asbestos cloth Put the cold material iron cylinder 1 on the dummy rod 2-1 of the dummy head 2 in the crystallizer, and use the feeding funnel to distribute the cooling material into the quantitative material iron cylinder 3 to ensure that the tundish is opened After pouring, the pouring flow is quickly welded with the cold material iron cylinder in the mold to form a primary billet shell. After starting, the dummy rod hinged on the dummy rod pulls the billet out of the mold along the copper tube.

[0027] The cold material iron cylinder 1, ...

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Abstract

The invention discloses a square billet continuous casting starting method. The method comprises the following steps that a dummy ingot head in a crystallizer is covered by using asbestos cloth aftereach flow is plugged into a dummy ingot, a cold material iron barrel is placed on a dummy ingot rod of the dummy ingot head in the crystallizer, cooling material is distributing into a quantitative material iron barrel by using a feeding funnel, ensuring that the casting flow after a tundish is cast in the crystallizer and rapidly welding the cold material iron barrel is carried out to form a primary billet shell, and the square billet is pulled out of the crystallizer along a copper pipe, a ingot casting rod is hinged to an ingot casting bar after starting is carried out. The method disclosedby the invention can be used for solving the problems that an existing square billet continuous casting starting dummy ingot is not moving, a steel flow punch penetrates through the dummy ingot rod,get out of the dummy ingot is difficult, and the production cost and the labor intensity are increased.

Description

technical field [0001] The method relates to the technical field of steel manufacture, in particular to a starting method for continuous casting of square billets. Background technique [0002] Continuous casting is an important process of turning liquid high-temperature molten steel into solid high-temperature casting slabs in steel production. The mold of a continuous casting machine is a cooling component that turns molten steel into slabs. [0003] At present, the continuous casting machine crystallizer is a continuous casting equipment that accepts the molten steel injected from the tundish and solidifies it into a solid slab shell according to the specified cross-sectional shape. It is the most critical equipment of the continuous casting machine. Square billet (hereinafter referred to as billet) continuous casting tundish starts with the use of a cold metal cylinder welded by thin steel plates and connected to the dummy head as the primary billet shell connector durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/08
CPCB22D11/08B22D11/083
Inventor 林军黄思龙杨宗保陈仲华梁日成彭志高
Owner LIUZHOU IRON & STEEL
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