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  5. Appendix A – Transmission of thermal energy in a continuous annealing furnace

Article | REF: M7955 V1

Continuous annealing

Author: Charles BRUN

Publication date: December 10, 1996 | Lire en français

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    5. Appendix A – Transmission of thermal energy in a continuous annealing furnace

    Heat in a continuous annealing furnace is transmitted by radiation and convection. For thin sheet metal, we verify that :

    • the temperature gradient across the strip thickness is negligible;

    • heat exchange by conduction in the strip is negligible.

    5.1 Transmission of thermal energy by radiation

    To establish the temperature-time relationship for the belt, we would need to know the temperature and emissivity of the furnace's radiant elements, and the emissivity of the belt.

    In fact, all that is known is the temperature T c of the control torque and the radiation exchange factors F ...

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