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Technical Brief

Analysis of Casting Roll Temperature Distribution and Thermal Deformation in Twin-Roll Continuous Strip Casting

[+] Author and Article Information
Guangming Zhu

Mem. ASME
College of Mechanical Engineering,
Shandong University of Technology,
Zibo, China
e-mail: gus197621@sina.com

Yuwen Zhang

Fellow ASME
Department of Mechanical and Aerospace Engineering,
University of Missouri,
Columbia, MO 65211

1Corresponding author.

2Mainly engaged in metal forming and numerical simulation of metal forming process.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received February 15, 2013; final manuscript received February 17, 2014; published online March 26, 2014. Assoc. Editor: Gracious Ngaile.

J. Manuf. Sci. Eng 136(3), 034501 (Mar 26, 2014) (5 pages) Paper No: MANU-13-1064; doi: 10.1115/1.4026897 History: Received February 15, 2013; Revised February 17, 2014

In twin-roll continuous strip casting, casting roll is heated by molten metal, and thermal deformation is caused to change strip thickness and quality. It is imperative to understand casting roll temperature distribution and thermal deformation. In this paper, a 2D finite element (FE) model is built to analyze casting roll temperature and thermal deformation under various casting processing parameters. The influences of shrink fit of roll sleeve and shaft are taken into account and the coating was treated to be consistent to the actual situation. The results show that casting temperature fluctuates cyclically within a thin top layer in stable casting, and there is almost no temperature fluctuation near cooling water holes.

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Figures

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Fig. 1

Schematic of twin-roll continuous strip casting process

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Fig. 3

Map of Von-Mises equivalent stress distribution in the casting roll (a) before thermal deformation and (b) after thermal deformation

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Fig. 4

Partition of various heated areas on roll surface

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Fig. 5

Temperature variation with various coating thicknesses (a) at location a and (b) at location c

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Fig. 6

Thermal deformation variation at various coating thicknesses

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Fig. 7

Casting roll surface temperature variation at various casting velocities

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Fig. 8

Thermal deformation variation at various casting velocity

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Fig. 9

Temperature distribution with various cooling water flow velocities (a) location a, (b) location b, and (c) location c

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Fig. 10

Thermal deformation variation at various cooling water flow velocities

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