Numerical Simulation of Turbulence Flow and Solidification in a Bloom Continuous Casting Mould with Electromagnetic Stirring

2018 ◽  
pp. 223-236
Author(s):  
Shaoxiang Li ◽  
Peng Lan ◽  
Jiaquan Zhang
Keyword(s):  
Numerical Simulation ◽  
Continuous Casting ◽  
Electromagnetic Stirring ◽  
Turbulence Flow ◽  
Continuous Casting Mould

Numerical Simulation of Flow Field in Bloom Continuous Casting Mold with Electromagnetic Stirring

2010 ◽  
Vol 146-147 ◽  
pp. 272-276 ◽  
Author(s):  
Jing Zhang ◽  
En Gang Wang ◽  
An Yuan Deng ◽  
Xiu Jie Xu ◽  
Ji Cheng He
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Flow Field ◽  
Continuous Casting ◽  
Tangential Velocity ◽  
Electromagnetic Stirring ◽  
Continuous Casting Mold ◽  
Frequency Increase ◽  
Velocity Increase ◽  
Casting Mold

A coupled numerical simulation of magnetic field and flow field was conducted basing on Φ250mm bloom during continuous casting with electromagnetic stirring.The distribution of the flow field was analyzed in different current and frequency.At the same current,the velocity first decrease and then increase as the frequency increase along the casting direction.At the same frequency, tangential velocity is dominant in the radial of EMS center,velocity increase with the current. Considered the results of numerical simulation,the optimized EMS parameters of Φ250mm bloom are the stirring current of 480A and the stirring frequency of 3Hz.

scholarly journals Primary Structure and Mechanical Properties of AlSi2 Alloy Continuous Ingots

2017 ◽  
Vol 17 (2) ◽  
pp. 145-150
Author(s):  
T. Wróbel ◽  
J. Szajnar ◽  
D. Bartocha ◽  
M. Stawarz
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Continuous Casting ◽  
Primary Structure ◽  
Structure Refinement ◽  
Negative Influence ◽  
Electromagnetic Stirring ◽  
Metal Bath ◽  
Continuous Casting Mould

AbstractThe paper presents the research results of horizontal continuous casting of ingots of aluminium alloy containing 2% wt. silicon (AlSi2). Together with the casting velocity (velocity of ingot movement) we considered the influence of electromagnetic stirring in the area of the continuous casting mould on refinement of the ingot’s primary structure and their selected mechanical properties, i.e. tensile strength, yield strength, hardness and elongation. The effect of primary structure refinement and mechanical properties obtained by electromagnetic stirring was compared with refinement obtained by using traditional inoculation, which consists in introducing additives, i.e. Ti, B and Sr, to the metal bath. On the basis of the obtained results we confirmed that inoculation done by electromagnetic stirring in the range of the continuous casting mould guarantees improved mechanical properties and also decreases the negative influence of casting velocity, thus increasing the structure of AlSi2 continuous ingots.

scholarly journals The Stand of Horizontal Continuous Casting of Al and its Alloys

2013 ◽  
Vol 13 (3) ◽  
pp. 113-118 ◽  
Author(s):  
T. Wróbel ◽  
J. Szajnar ◽  
D. Bartocha ◽  
M. Stawarz
Keyword(s):  
Continuous Casting ◽  
Induction Furnace ◽  
Structure Refinement ◽  
Pure Aluminum ◽  
Electromagnetic Stirring ◽  
Metal Bath ◽  
Horizontal Continuous Casting ◽  
Continuous Ingot ◽  
Continuous Casting Mould

Abstract In paper is presented idea of construction and influence of selected parts of stand of horizontal continuous casting on quality of pure Al and AlSi2 alloy ingots. The main parts of the made stand belong to induction furnace, which is also tundish, water cooled continuous casting mould, system of recooling, system of continuous ingot drawing and cutting. Mainly was considered influence of electromagnetic stirrer, which was placed in continuous casting mould on refinement of ingots structure. Effect of structure refinement obtained by influence of electromagnetic stirring was compared with refinement obtained by use of traditional inoculation, which consists in introducing of additives i.e. Ti and B to metal bath. The results of studies show possibility of effective refinement of Al and AlSi2 alloy primary structure, only with use of horizontal electromagnetic field and without necessity of application of inoculants. This method of inoculation is important, because inoculants decrease the degree of purity and electrical conductivity of pure aluminum and moreover are reason of point cracks formation during rolling of ingots.

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