Effect of Mold Cavity Design on the Thermomechanical Behavior of Solidifying Shell During Microalloyed Steel Slab Continuous Casting

2021 ◽  
Author(s):  
Zhenyu Niu ◽  
Zhaozhen Cai ◽  
Miaoyong Zhu
Keyword(s):  
Continuous Casting ◽  
Microalloyed Steel ◽  
Thermomechanical Behavior ◽  
Mold Cavity ◽  
Slab Continuous Casting ◽  
Steel Slab ◽  
Cavity Design

scholarly journals Influence of M-EMS on Fluid Flow and Initial Solidification in Slab Continuous Casting

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3681
Author(s):  
Guoliang Liu ◽  
Haibiao Lu ◽  
Bin Li ◽  
Chenxi Ji ◽  
Jiangshan Zhang ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Flow Field ◽  
Continuous Casting ◽  
Casting Speed ◽  
Liquid Pool ◽  
Industrial Test ◽  
Magnetic Flux Density ◽  
Continuous Casting Mold ◽  
Slab Continuous Casting ◽  
Initial Solidification

A mathematical model coupled with electromagnetic field has been developed to simulate the transient turbulence flow and initial solidification in a slab continuous casting mold under different electromagnetic stirring (EMS) currents and casting speeds. Through comparing the magnetic flux density, flow field with measured results, the reliability of the mathematical model is proved. The uniform index of solidified shell thickness has been introduced to judge the uniformity of the solidified shell. The results show that a horizonal recirculation flow has been generated when EMS is applied, and either accelerated or decelerated regions of flow field are formed in the liquid pool. Large EMS current and low casting speed may cause the plug flow near the mold narrow face and a suitable EMS current can benefit to the uniform growth of solidified shell. Meanwhile, an industrial test exhibits that EMS can weaken the level fluctuation and number density of inclusion. Overall, a rational EMS current range is gained, when the casting speed is 1.2 m/min, the rational EMS current is 500–600 A.

Formation and Control of Transverse Corner Cracks in the Continuous Casting Slab of a Microalloyed Steel

2021 ◽  
pp. 2000649
Author(s):  
Yadong Wang ◽  
Qiang Ren ◽  
Lifeng Zhang ◽  
Xiaogang Yang ◽  
Wen Yang ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Microalloyed Steel ◽  
Continuous Casting Slab ◽  
Corner Cracks ◽  
And Control
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