Simulation Of Fluid Flow, Heat And Mass Transfer In Hot Dip Galvanizing Bath

Continuous hot dip galvanizing steel has good corrosion resistance, weldability andformability,which is widely used in construction, home appliance industry, containermanufacturing, mechanical and electronic industry, etc. Demand for the automotiveindustry has become the driving force of development of the galvanized sheet. Since theproduction of high-quality zinc-coated products is a major factor in the proftability of allsteel sheet producers, the technology and quality control of the galvanizing process is ofprimary concern.Based on the basic theories of computational fluid dynamics, the fluidfield and distribution of temperature in a zinc bath were simulated and analyzed byFLUENT software. The objective of this thesis is to put forward some guiding opinions toimprove the quality of the galvanized steel and the galvanizing technology.It has become clear that the fow is three-dimensional, due to the complex geometryof the immersed hardware. Temperature and flow field inner the inductor were calculatedand analyzed, which have been ignored or simplified by the scholars. The effect of thestrip width, strip speed, strip temperature, Al content in zinc ingot and other operationconditions on the zinc fluid flow, heat transfer and component distribution in the zinc potwere also discussed. We can have more clear understanding on the zinc flow pattern, theliquid temperature distribution, zinc liquid component distribution, etc. A deeperunderstanding of the key factors to effect the quality and how it work.The combination of experiment and simulation to analyze the flow in a hot dipgalvanizing zinc pot will be able to get optimum operating conditions for galvanizedprocess based on of this paper, which will have great practical and economic value.