Improve the performance of cold crucible used for emissivity measurement of molten metal

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-02-18 DOI:10.1016/j.csite.2025.105898

Gangquan Wang , Yinxue Bai , Baolin Zhao , Longfei Li , Yue Liu , Kaihua Zhang , Yufang Liu , Kun Yu

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引用次数: 0

Abstract

High-purity titanium (Ti) and its alloys are among the most promising materials for advanced turbine blades in aerospace engines. Electromagnetic cold crucible melting is a novel technique for producing contamination-free pure Ti ingots. To enhance the utilization efficiency of electromagnetic energy, an initial assessment of the electromagnetic energy utilization rate of the cold crucible was conducted. Subsequently, based on numerical simulation, the impact of electromagnetic energy on the uniformity of the electromagnetic field within the Ti melt was investigated, providing a theoretical basis for performance optimization. The results indicated that a cylindrical structure with a spherical bottom significantly improves the electromagnetic utilization and temperature uniformity of the crucible. Finally, using the optimized crucible, a measurement apparatus for the spectral emissivity of molten Ti was developed. By simulation and optimization of the optical path system and sample temperature field, high-precision spectral emissivity measurement of molten Ti was achieved. This study underscores the potential of optimized electromagnetic cold crucible technology in advancing the production and precise measurement of high-purity Ti, critical for aerospace applications.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.