Yansheng Zhang, Zhenlei Li, Yang Tang, Guo Yuan, Guodong Wang
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引用次数: 0
Abstract
The twin-roll casting technology has attracted significant attention in recent years due to its remarkable advantages, including a streamlined process, reduced energy consumption, and minimized emissions. This study focused on optimizing the design of the cooling water channel for the casting roller through a combination of numerical simulations and experimental verification. Research has shown that annular water channels can effectively promote uniform, stable, and efficient heat exchange between the casting rollers and molten pools. Furthermore, the study compared the temperature and thermal deformation characteristics of casting rollers during the casting processes of various metal materials, such as magnesium alloy, aluminum alloy, titanium alloy, steel, and Inconel 718 alloy. The results indicated that transitioning from casting magnesium alloy to Inconel 718 alloy led to a surface temperature increase of over 200 °C on the casting roller, accompanied by a substantial 105 % rise in thermal deformation. Additionally, an investigation of the temperature and deformation distribution across different casting roller materials revealed that replacing steel casting rollers with copper alloy rollers reduced the peak surface temperature by 36 % and decreased the maximum thermal deformation from 408 μm to 298 μm, representing a 27 % reduction. These research findings provide significant practical insights for guiding the structural design of casting rollers and optimizing process parameters in twin-roll casting.
期刊介绍：
The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review.
The fundamental subjects considered within the scope of the journal are:
* Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow
* Forced, natural or mixed convection in reactive or non-reactive media
* Single or multi–phase fluid flow with or without phase change
* Near–and far–field radiative heat transfer
* Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...)
* Multiscale modelling
The applied research topics include:
* Heat exchangers, heat pipes, cooling processes
* Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries)
* Nano–and micro–technology for energy, space, biosystems and devices
* Heat transport analysis in advanced systems
* Impact of energy–related processes on environment, and emerging energy systems
The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.
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