Analysis of Casting Roll Temperature Field during Twin-Roll Thin Strip Casting

2008 ◽  
Vol 32 ◽  
pp. 169-172 ◽  
Author(s):  
Xiao Ming Zhang ◽  
Zheng Yi Jiang ◽  
Hei Jie Li ◽  
Z. Fan ◽  
Xiang Hua Liu ◽  
...  

In twin-roll strip casting process, the temperature variation of casting roll can result in roll thermal stress and fatigue. It not only affects the thermal deformation of casting roll and the generation of the roll surface cracks significantly, but also influences the surface quality, shape and profile of the produced strip, and the service life of the casting roll. In this paper, a 3D coupling thermal-flow finite element modelling has been conducted. For twin-roll casting of stainless steel, the influences of the casting speed and liquid level in molten pool on the temperature field of casting roll have been simulated and discussed. The developed model is very helpful in optimising the processing parameters and the design of casting roll during twin-roll thin strip casting.

2010 ◽  
Vol 654-656 ◽  
pp. 1602-1605 ◽  
Author(s):  
Xiao Ming Zhang ◽  
Zheng Yi Jiang ◽  
Dong Bin Wei ◽  
Xiang Hua Liu ◽  
Guo Dong Wang

In twin-roll thin strip casting, the temperature of casting roll affects the roll thermal stress, and influences the thermal deformation, the generation of roll surface cracks, the strip shape and the service life of casting roll. In this paper, the features of the casting roll materials have been analysed, the effects of the clad materials and thickness on temperature field of the casting roll have been simulated and discussed. The developed temperature model of casting roll is helpful in optimising processing parameters and the design of casting roll during twin-roll thin strip casting.


2010 ◽  
Vol 145 ◽  
pp. 287-292
Author(s):  
Xiao Ming Zhang ◽  
Zheng Yi Jiang ◽  
Dong Bin Wei ◽  
Xiang Hua Liu ◽  
Guo Dong Wang

In twin-roll thin strip casting, the temperature distribution of casting roll affects the roll thermal stress, and influences the thermal deformation, the generation of roll surface cracks, the strip shape, and the service life of casting roll. In this paper, the temperature distributions of casting roll have been analysed, the effects of the roll sleeve thickness on the temperature field and thermal stress of casting roll have been simulated and discussed. The developed temperature model of casting roll is helpful in optimising the processing parameters and the design of casting roll during twin-roll thin strip casting.


Author(s):  
Guangming Zhu ◽  
Yuwen Zhang

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.


Author(s):  
Xiao Ming Zhang ◽  
Zheng Yi Jiang ◽  
He Jie Li ◽  
Z. Fan ◽  
Xiang Hua Liu ◽  
...  

2015 ◽  
Vol 2015.23 (0) ◽  
pp. 137-138
Author(s):  
Tomohisa TAKADA ◽  
Fumiya YAMANO ◽  
Yuki AKAIKE ◽  
Yoshitaka SATO ◽  
Masaru FUJITA ◽  
...  

2007 ◽  
Vol 340-341 ◽  
pp. 695-700 ◽  
Author(s):  
Xiao Ming Zhang ◽  
Zheng Yi Jiang ◽  
L.M. Yang ◽  
Xiang Hua Liu ◽  
Guo Dong Wang

In twin-roll strip casting process, metal flow and temperature distribution in the molten pool directly affect the stability of the process and the quality of products. In this paper, a 3D coupling temperature-flow finite element simulation during twin-roll strip casting has been carried out, and the influences of the outlet angle and the submerged depth on the temperature and flow fields in the molten pool were investigated for the twin-roll casting of stainless steel. An inverse method was used to determine the boundary conditions between the roll and molten pool. Simulation results are consistent with the experimental values. Numerical simulation is helpful to optimise the twin-roll strip casting process and to improve the quality of products in practice.


2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Seshadev Sahoo

Nowadays near-net-shape casting technology is an important area of research in the iron and steel industry. Among different kinds of near-net-shape casting process, twin-roll casting process has received much attention among researchers. Twin-roll casting (TRC) has been the subject of extensive research, not only to develop the technology but also to achieve an understanding of microstructural evolution and to produce quality strips. The main issues concerning the design and operation of twin-roll casters are metal-mold heat transfer, metal delivery system, and their possible effects on the solid shell formation and characteristics of the strips. The present review gives an idea about the process aspect, modeling, and quality issues in vertical twin-roll strip casting process and helps to improve the design of twin-roll strip caster.


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