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A system and method for measuring and predicting true primary shell thickness in a mold

A crystallizer and billet shell technology, which is applied in the field of measuring and predicting the thickness of the real primary solidified billet shell in the crystallizer, can solve the problems of the reduction of the use value of the breakout billet shell, and achieve the effect of solving the problem of estimation

Active Publication Date: 2021-10-22
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

Due to the lack of a more accurate collection method for the solidification information of the breakout shell, the utilization value of the breakout shell is greatly reduced

Method used

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  • A system and method for measuring and predicting true primary shell thickness in a mold
  • A system and method for measuring and predicting true primary shell thickness in a mold
  • A system and method for measuring and predicting true primary shell thickness in a mold

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Embodiment Construction

[0079] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. On the contrary, the present invention covers any alternatives, modifications, equivalents and arrangements within the spirit and scope of the present invention as defined by the appended claims. Further, in order to give the public a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0080] The present invention will be further described below with reference to t...

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Abstract

The invention provides a system and method for measuring and predicting the thickness of the real primary solidified shell in a crystallizer. The system includes an information collection module, a breakout shell microstructure measurement module, a crystallizer primary solidified shell thickness growth prediction module and result output module; the method includes: collecting continuous casting crystallizer equipment parameters and process parameters; breakout shell microscopic solidification structure erosion; dividing the thickness of the steady-state billet shell layer, additional solidification layer and adhesion layer in the breakout shell; establishing the breakout The process model is used to solve the drop rate of molten steel and steel breakout time, and calculate the thickness of the adhesion layer in combination with the heat transfer of the slab, and then use the solidification coefficient to calculate the thickness of the steady-state slab shell layer and the additional solidified layer; the measured and predicted real The initial shell thickness is output and displayed. The invention can accurately measure and predict the thickness of the real primary solidified slab shell in the crystallizer through continuous casting of the breakout slab shell.

Description

technical field [0001] The invention belongs to the technical field of metallurgical process production, and in particular relates to a system and method for measuring and predicting the thickness of a real initial solidification billet shell in a mold. Background technique [0002] The continuous casting mold is a forced cooling bottomless copper mold, which plays a vital role in the continuous casting process and is called the "heart" of the continuous casting machine. The liquid molten steel with a certain degree of superheat flows from the tundish into the mold through the nozzle, and under the action of the cooling water of the mold, an initial solidification shell with a certain thickness and regular shape is formed. The uniformity of the initial solidification shell in the mold is closely related to the surface defects of the casting billet such as depressions, diamond changes, and deviation angle cracks. Deformation and breakout accidents occur. Therefore, the init...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20B22D11/16
CPCB22D11/16
Inventor 张家泉李亮李少翔兰鹏王小松董延楠
Owner UNIV OF SCI & TECH BEIJING
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