Spray Cooling Rate Model of Heavy Cylinder Rolling

Abstract:

In order to eliminate the mixed crystals of the thick-walled heavy cylinder after rolling and improve the quench shortage of tank copious cooling, it is significant to analyze the cooling capacity of spray cooling and tank copious cooling. Models of heat transfer coefficient about spray cooling and copious cooling were established. The quenching process simulation was made based on the DEFORM software. The cooling rate models of center part about spray cooling and copious cooling were build. According to the CCT curves of heavy cylinder material and simulation results, which show that: (1) Using spray cooling can increase the cooling rate of center part to some extent and improve the mechanical properties. (2) The maximum capacity of spray cooling is 280mm, that is the microstructure of center part fully transfers to bainite, which is 50mm larger than copious cooling.

• Periodical: Advanced Materials Research (Volumes 1006-1007)
• Pages: 173-176
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1006-1007.173
• Online since: August 2014
• Authors: Yong Zhen Zhang, Jian Liang Sun*, Yan Peng, Hong Min Liu, Su Wen Chen
• Keywords: Cooling Rate Model, Heat Transfer Coefficient, Heavy Cylinder, Spray Cooling

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