Micromodel of Simulation on Twin-Roll Continuous Casting Thin Strip Solidification Structure

2013 ◽  
Vol 42 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Chen Shoudong ◽  
Chen Jingchao
Keyword(s):  
Continuous Casting ◽  
Solidification Structure ◽  
Thin Strip ◽  
Twin Roll

Simulation of Microstructures in Solidification of Continuous Casting Aluminum Alloy Thin Strip

2011 ◽  
Vol 399-401 ◽  
pp. 1750-1754
Author(s):  
Shou Dong Chen ◽  
Jing Chao Chen ◽  
Lian Hao Lv
Keyword(s):  
Aluminum Alloy ◽  
Continuous Casting ◽  
Solidification Process ◽  
Solidification Structure ◽  
Thin Strip ◽  
Metal Solidification ◽  
Casting Aluminum Alloy ◽  
Casting Aluminum ◽  
Twin Roll ◽  
Kinetics Of

Based on the research on the solidification of twin-roll continuous casting aluminum alloy thin strip, the analytical model of heterogeneous nucleation, the growth kinetics of tip (KGT) of twin-roll continuous casting aluminum alloy thin strip solidification are established by means of the principle of metal solidification, meantime based on the cellular automaton, the emulational model of twin-roll continuous casting aluminum alloy thin strip solidification is established. The foundation for the emulational simulation of twin-roll continuous casting thin strip solidification structure is laid. Meanwhile has confirmed the mathematical simulation feasibility by using the solidification process of twin-roll continuous casting aluminum alloy Thin Strip.

scholarly journals A Top Side-Pouring Twin-Roll Caster for 3.0 Wt.% Si Steel

2021 ◽  
Author(s):  
Dongpo Xuan ◽  
cheng zhou ◽  
You Zhou ◽  
Tianliang Jiang ◽  
Biji Zhu ◽  
...  
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Solidification Structure ◽  
Thin Strip ◽  
Fe Model ◽  
Melt Pool ◽  
Roll Casting ◽  
Width Direction ◽  
Three Dimensional Finite Element ◽  
Twin Roll

Abstract Three-dimensional finite element modeling of twin-roll strip casting (TRC) and the top side-pouring twin-roll casting (TSTRC) were carried out to predict the temperature, flow, and turbulence kinetic energy of the two processes. The cellular automaton–finite element (CA-FE) model was established to predict the solidification structure of the two processes. By comparing the two processes, it was found that the temperature field distribution in the micro-melt pool during the TSTRC process was uniform. The temperature distribution in the width direction was also more uniform, and the stirring in the micro melt-pool was intense. An equiaxed crystal structure uniformly distributed in the width direction was obtained, and a thin strip of good quality was obtained. Not only the near-final forming of the thin strip was realized, but also the near-final forming of the solidified structure was realized. By comparing the experimental process of TSTRC with the simulation, it was found that the simulation and experimental results were in good agreement, which verified the feasibility and accuracy of the simulation.

Si-STEEL THIN-STRIP PREPARED BY TWIN-ROLL CONTINUOUS CASTING

2011 ◽  
Vol 18 (03n04) ◽  
pp. 97-102 ◽  
Author(s):  
YU YI ◽  
ZEHUA ZHOU ◽  
ZEHUA WANG ◽  
SHAOQUN JIANG ◽  
WEIDONG HUANG
Keyword(s):  
Continuous Casting ◽  
Strip Thickness ◽  
Thin Strip ◽  
Quality Factors ◽  
Pouring Temperature ◽  
Steel Strips ◽  
Si Content ◽  
Twin Roll ◽  
The Relationship

The fabrication process of Si -steel thin-strip by twin-roll continuous casting was described and the quality of the obtained Si -steel thin-strip was measured. Si -steel strips with 0.5–6.5 wt.% Si content were successfully prepared, and proper parameters including pouring temperature, height of molten pool, casting speed and pouring head mode were optimized, and their mechanisms were discussed. The relationship between quality factors of Si -steel including cracks, strip thickness, impurity and process parameters such as Si content and so on were discussed. The morphologies of the strips with different Si content were studied.

scholarly journals Mechanism of Electromagnetic Field in the Sub-RapidSolidification of High-Strength Al-Cu-Li Alloy Produced by Twin-Roll Casting

Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 952
Author(s):  
Shiju Li ◽  
Bowen Wei ◽  
Wei Yu ◽  
Chen He ◽  
Yong Li ◽  
...  
Keyword(s):  
Body Force ◽  
High Strength ◽  
Solidification Structure ◽  
Experimental Characterization ◽  
Alloy Plate ◽  
Twin Roll Casting ◽  
Comprehensive Properties ◽  
Roll Casting ◽  
Mold Casting ◽  
Twin Roll

In this work, a Al-Cu-Li alloy plate with outstanding mechanical properties was successfully prepared with electromagnetic twin-roll casting (TRC) technology. The microstructure of Al-Cu-Li alloy manufactured by conventional mold casting, TRC, and electromagnetic TRC was studied in detail. The action mechanism of electromagnetic oscillation field (EOF) in the TRC process was studied by systematic experimental characterization and numerical simulation. The results show that the EOF will enlarge the circumfluence area in the cast-rolling zone, accelerate the mass transfer and heat transfer in the molten pool, and make the solute field and flow field in the liquid cavity tend to be evenly distributed. Further, the introduction of the EOF will produce the electromagnetic body force F with the maximum strength of 14 N/m3. The F acting on the solidification front will eliminate the accumulation and deposition of Cu2+, Li+, Mg2+, Zn2+, Mn2+ at the dendrite tip and inhibit the growth of dendrites. At the same time, the F can refine the microstructure of the TRC plate, promote the formation of equiaxed crystals, improve the supersaturated solid solubility of solute elements in the a(Al) matrix, and avoid the appearance of obvious solute segregation area or the formation of excessive solute enrichment area. Therefore, the macro-segregation in TRC plate was significantly reduced, the solidification structure was dramatically refined, and the comprehensive properties of the alloy were remarkably improved.

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