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Study on Design System of Annealing Process in HICON/H2 Furnace

Author: DingFei
Tutor: FanXinMin
School: Nanjing University of Technology and Engineering
Course: Materials Science
Keywords: HICON/H2 bell furnace Full hydrogen Annealing process Heat transfer Mathematical model Design System
CLC: TG156.2
Type: Master's thesis
Year: 2009
Downloads: 147
Quote: 0
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Abstract


Strong convection bell-type annealing furnace heat transfer characteristics of the process in full hydrogen based on the combination of heat transfer and fluid mechanics , the establishment of a coiling temperature as the core of the withdrawal the fiery process mathematical model and the model with Visual Basic language interface program prepared fusion HICON / H 2 bell furnace annealing process design system developed . Size and physical parameters of the input coil, fuel and furnace parts can be obtained by simulation the steel coil annealing process and temperature curves , the calculation results with the Austrian the platform results were verified by the results show that the system is reasonable and reliable. Depth study of the full hydrogen bell -type annealing furnace heat transfer and design parameters . After the simulation , the design of the system is given the velocity distribution of the inner cover gas space protection , provide accurate boundary conditions for steel coil heat transfer model ; article also highlights the two important parameters of the steel coil heat transfer - convection heat transfer coefficient and radial thermal conductivity , contrast values ??under different atmospheric conditions , to clarify the mechanism of the superiority of a hydrogen furnace ; addition analysis of the annealing time on the amount of circulating air , proved reasonable and inverter fan design superiority . In addition, this paper also analyzes the impact of steel coils and fuel parameters for steel coil annealing , the study results show that the steel coil annealing time is extended with increasing plate width and stack weight ; analysis results show that two commonly used fuel , natural gas the reasonable fuel of choice , but the fuel is the final choice to be comprehensive enterprise management , gas costs and product prices , and other factors to determine .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > Heat treatment > Heat treatment process > Annealing
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