浸入式喷嘴对漏斗模具表面速度的影响

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI:10.1515/htmp-2022-0247

Limin Zhang, Liguang Zhu, Cai-Jun Zhang, Pengcheng Xiao, Xingjuan Wang

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引用次数: 1

摘要

摘要采用五孔浸入式水口（FHSEN）对柔性薄板坯连铸机漏斗形结晶器在高铸速下的流场进行了物理和数值模拟，并分析了不同铸速（4、5、6）下漏斗形结晶液位的流场特征 m·min−1）和不同的淹没深度（130、160和190 mm）与设计的新型浸入式喷嘴（NSEN）进行了对比研究。物理模拟是基于漏斗模具原型的。基于FLUENT软件进行了数值模拟，并对两种浸入式喷嘴进行了工业试验。结果表明，在物理和数值模拟的情况下，FHSEN漏斗模具的最大表面速度为0.58 m·s−1，漏斗模具液位易发生夹渣现象。NSEN漏斗模具的最大表面速度为0.37 m·s−1。与FHSEN相比，NSEN漏斗模具的最大表面速度降低了0.21 m·s−1，漏斗模具表面速度显著下降。最后，通过工业试验验证了模拟结果的准确性，并表明NSEN可以大大降低漏斗模具表面速度和夹渣概率。

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Influence of submerged entry nozzle on funnel mold surface velocity

Abstract In this article, physical and numerical simulation of the flow field in flexible thin slab caster funnel mold at high casting speed is carried out with a five-hole submerged entry nozzle (FHSEN), and characteristics of the flow field on funnel mold liquid level under different casting speeds (4, 5, and 6 m·min−1) and different submerged depths (130, 160, and 190 mm) are studied by comparing with the new submerged entry nozzle (NSEN) designed. Physical simulation is based on the funnel mold prototype. Numerical simulation is carried out based on FLUENT software, and industrial experiments of two kinds of submerged entry nozzle are also carried out. The results show that in the case of both physical and numerical simulation, the maximum surface velocity of the FHSEN funnel mold is 0.58 m·s−1, and the funnel mold liquid level is prone to slag entrapment. The NSEN funnel mold’ maximum surface velocity is 0.37 m·s−1. Compared with the FHSEN, the NSEN funnel mold’ maximum surface velocity decreases by 0.21 m·s−1, and funnel mold surface velocity decreases significantly. Finally, the accuracy of simulation results is verified by industrial tests, and it is also show that NSEN can greatly reduce funnel mold surface velocity and probability of slag entrapment.

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来源期刊

High Temperature Materials and Processes 工程技术-材料科学：综合

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

3.9 months

期刊介绍： High Temperature Materials and Processes offers an international publication forum for new ideas, insights and results related to high-temperature materials and processes in science and technology. The journal publishes original research papers and short communications addressing topics at the forefront of high-temperature materials research including processing of various materials at high temperatures. Occasionally, reviews of a specific topic are included. The journal also publishes special issues featuring ongoing research programs as well as symposia of high-temperature materials and processes, and other related research activities. Emphasis is placed on the multi-disciplinary nature of high-temperature materials and processes for various materials in a variety of states. Such a nature of the journal will help readers who wish to become acquainted with related subjects by obtaining information of various aspects of high-temperature materials research. The increasing spread of information on these subjects will also help to shed light on relevant topics of high-temperature materials and processes outside of readers’ own core specialties.