Heat transfer behaviour of funnel mould copper plates with high casting speed during different water supply processes

ABSTRACT

In the process of high casting speed, the study of funnel mould (FM) cooling process is particularly important. Based on the copper plate temperature measured by thermocouple, a mathematical model of the inverse heat transfer problem of the thin slab/copper plate was developed to calculate the boundary heat flux, then a positive mathematical model of thin slab/copper plate/cooling water coupled heat transfer has been developed, and the influence of the cooling water flows from top to bottom in the water channels on the heat transfer behaviour of the FM copper plate was analysed. The results show that when the cooling water flows from top to bottom in the water channels was adopted, the peak temperature of the copper plate hot face decreased 117°C, the maximum temperature of the cooling water decreased 24°C. Cooling water velocity and temperature have little influence on heat transfer of copper plate.

KEYWORDS:

• High casting speed
• funnel mould
• cooling process
• copper plate
• cooling water
• mathematical model
• heat transfer
• temperature

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work is funded by the Nature Science Foundations of Hebei [grant numbers CXZZBS2020130, E2020209005, E2021209094], National Natural Science Foundation of China [grant number 51904107], Science and technology research project of Higher education in Hebei Province [grant number BJ2019041], Hebei Province "333 Talents Project" funding project [grant number A202102002], Tangshan Talent Subsidy project (A202010004).