Abstract
The intention of this study is to give an idea about the influence of water-spray cooling on the solidification process of the liquid metal which enables to locate the shear region. The effect of spray heat transfer coefficient (hspray) during the liquid-to-solid transition through the cooled zone temperature and the metal latent heat of solidification are highlighted. A gray iron continuous casting process subjected to water-sprays cooling was simulated using the commercial code COMSOL MULTIPHYSICS 5.2. The obtained results show the great influence of hspray on the location of transition region as well as the relationship between hspray, wall outer temperature, latent heat dissipation, and the solidification time.
Highlights
The final metal structure is strongly affected by the set up cooling mode throughout liquid metal solidification
Water is used to cool the mould in the initial stages of solidification, and below the mould, where it is in direct contact with the newly solidified surface of the metal
The study consists of water-spray cooling simulation
Summary
The final metal structure is strongly affected by the set up cooling mode throughout liquid metal solidification. Water cooling affects the product quality by controlling the heat removal rate that creates and cools the solid shell and generating thermal stresses and strains inside the solidified metal. Several mathematical models are proposed for cooling a metal solidifying in a continuous casting mould, the purpose is to develop such a control to obtain the best possible steel quality, that is, minimizes the defects in the final product.
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