Work

Study on solidification and heat transfer of billet shell in a new-structure high-speed continuous casting mold

Year: 2024

Type: article

Abstract: A newly designed mold, named the double-water-jacket mold, was used to produce 155mm×155mm billets, achieving a stable production speed of 5.07 m/min in this work. The mold comprised a tubular main body with water channels of varying depths and widths, an external water jacket, and an intermediate water jacket inserted between the tubular main body and the external water jacket at the upper part, approximately 200mm in length. We established a heat transfer and solidification model of the billet in the mold and obtained a complete billet shell from the meniscus to the secondary cooling zone by flame cutting. Through simulation and test verification, detailed analyses were conducted on the temperature field distribution, thickness variation law, and cooling rate law of the billet shell in the mold, revealing its solidification behavior within the double-water-jacket mold. Additionally, the effects of casting speed, molten steel superheat, and mold taper on the solidification behavior of the billet shell were discussed. Results showed that the simulation data were basically consistent with the test verification results.

Source: Journal of Materials Research and Technology

DOI: 10.1016/j.jmrt.2024.10.011

Authors: Di Wang, Changchuan Xie, Fushuai Li, Tianyu Wu, Aimin Zhao

Institutions: University of Science and Technology Beijing, Metallurgical Corporation of China (China), First Automotive Works (China)

Language: English

Topic: Metallurgical Processes and Thermodynamics

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,430

Funders: National Natural Science Foundation of China, National University's Basic Research Foundation of China