Finite Element Simulation of Twin-Roll Casting Process with an Implementation of Slip/Friction Boundary Condition

1999 ◽  
Vol 121 (4) ◽  
pp. 665-673 ◽  
Author(s):  
Jee-Gong Chang ◽  
Cheng-I Weng
Keyword(s):  
Finite Element ◽  
Solid Phase ◽  
Casting Process ◽  
Current Approach ◽  
Friction Model ◽  
Thermomechanical Model ◽  
Twin Roll Casting ◽  
Liquid Phases ◽  
Roll Casting ◽  
Twin Roll

The twin-roll casting process is simulated by a general thermomechanical model by using a versatile finite element method. The multidomain method is employed to deal with the solid and liquid phases separately. This includes treating the liquid phase as an Newtonian fluid and the solid phase as a viscoplastic metal. Furthermore, a friction model is proposed to analyze the rolling effect of the completely solidified metal. From the results of this study, the implementation of the friction model can produce a reasonable flow field of the solidified metal. In addition, the non-slip condition severely restricts the motion of the solidified metal and introduces inaccuracy on the temperature, velocity and stress fields as compared to the current approach.

Effect of Secondary Cooling on Non-Oriented Electrical Steel Strips Produced by Twin-Roll Casting Process

2013 ◽  
Vol 690-693 ◽  
pp. 218-221
Author(s):  
Ting Zhang ◽  
Xiao Ming Zhang ◽  
Zhi Yuan Guo ◽  
Yu Qian Wang ◽  
Cheng Gang Li
Keyword(s):  
Electrical Steel ◽  
Casting Process ◽  
Air Cooling ◽  
Secondary Cooling ◽  
Twin Roll Casting ◽  
Steel Strips ◽  
Roll Casting ◽  
Average Size ◽  
Equiaxed Grains ◽  
Twin Roll

Effect of secondary cooling on non-oriented electrical steel strips was investigated. The 2.0 mm thick cast strips contain two compositions were produced by twin-roll casting process, cooled in the air or cooled by spraying water. The microstructure was observed by optical microscopy, and EBSD was used to characterize the texture of the cast strips. The results showed that air-cooling cast strips have uniform and equiaxed grains with average size of 250 μm. The microstructure of the water-spraying cast strips compose of most equiaxed grains and a small number of abnormal big grains. At the same time, the secondary cooling rate mildly affects the cast texture strength but has no influence on the texture type.

Thin Gauge Twin-Roll Casting, Process Capabilities and Product Quality

2013 ◽  
pp. 989-996 ◽  
Author(s):  
O. Daaland ◽  
A. B. Espedal ◽  
M. L. Nedreberg ◽  
I. Alvestad
Keyword(s):  
Product Quality ◽  
Casting Process ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll
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