Study on process changing model for strip continuous heat treatment furnace and experimental verification

During process changing of strip continuous heat treatment furnace, the key points of strip temperature optimization are the adjusting time and value of strip velocity and furnace parameters. On the base of analysis, a process changing model was build for strip continuous heat treatment furnace. The application to radiant tube tower furnace has considered the radiation interaction of adjacent strip, convection heat transfer between strip and furnace atmosphere. The numerical simulation result and experimental data comparison indicate that the process changing model is precise and reliable. Further simulation on process changing shows the relation between outlet strip temperature and strip thickness, strip velocity. The process changing model lays a theoretical foundation for the optimization of strip continuous heat treatment furnace.