Method for evaluating service performance of nozzle for continuous casting

By establishing a nozzle performance evaluation method, comprehensively evaluating various performance indicators of the nozzle, the problem of incomplete nozzle performance evaluation in the prior art is solved, a more uniform and stable spray cooling effect is achieved, and the quality of continuous casting billets is improved.

CN119692070APending Publication Date: 2025-03-25UNIV OF SCI & TECH BEIJING +1
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Patent Information

Application Number
CN202510198069.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The prior art is difficult to comprehensively consider the various spraying properties of nozzles, and the lack of effective nozzle performance evaluation methods, which makes it difficult to objectively and accurately screen high-quality nozzles, affecting the uniformity and stability of continuous casting secondary cooling.

Method used

A method for evaluating the performance of the nozzle for continuous casting is provided. By obtaining the actual application conditions and performance data of the nozzle, influencing factors such as water flow deviation, injection angle deviation, water volume distribution symmetry deviation and unevenness index are calculated, and an evaluation model is established to evaluate the performance of the nozzle.

Benefits of technology

By optimizing nozzle selection, the rationality of nozzle selection is improved, the uniformity and stability of spray cooling in the second cold zone of continuous casting are ensured, the quality of continuous casting billets is maximized, and crack defects caused by fluctuations in nozzle performance are reduced.

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Abstract

The invention provides a method for evaluating the usability of a nozzle for continuous casting. The method comprises the following steps: 1) acquiring the working condition of actual application of the nozzle and the performance data of the nozzle under the working condition; 2) calculating according to the performance data of the nozzle to obtain influence factors of the nozzle, wherein the influence factors comprise water flow deviation, spraying angle deviation, water distribution symmetry deviation and a water distribution non-uniformity index; and (3) evaluating the influence factors of the nozzle obtained in the step (2), and when any judgment standard is met, evaluating the usability of the nozzle to be poor, namely completing the evaluation of the usability of the nozzle. And 4) inputting the influence factor values of the nozzle obtained in the step 2) into an evaluation model for calculation, and then completing evaluation of the use performance of the nozzle according to the evaluation standard.
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Citation Information

Patent Citations

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  • Optimized nozzle arrangement method based on solidification characteristics of continuous casting steel billets

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  • Geometric model evaluation method for adaptive machining process of near-net forming blade

    CN118656936A

  • Method and system for evaluating nozzle spraying performance

    JP2023112973A

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