Numerical simulation of the nozzle configuration in strip casting process

Continuous casting process is an important part in the steel manufacturing process. The slab production quality is commonly influenced by mould and flow pattern of submerged entry nozzles (SEN). Hence, the present work aimed to attain a more liquid flow rate to increase the slab production quantity within a certain period. Moreover, a novel African Buffalo Algorithm (ABA) is presented in this work to optimise the SEN parameters and the SEN was designed in the MATLAB environment. The developed ABA model optimises the design parameters of SEN such as the size of the nozzle, the shape of the port, length, submergence depth, etc. The fitness of buffalo effectively optimises the SEN parameters and by utilising the optimised design parameters, the SEN was resigned in the MATLAB to identify the proposed framework's effectiveness. The results demonstrated that the liquid flow rate is increased and surface tension gets minimised. When the flow rate of liquid grows, the wave amplitude also upturns. The effect of liquid and air flow rate, port shape and size, maximum wave amplitude, surface tension, etc., were calculated with 0° parallel port. In addition, the presented SEN's results were compared with other existing SEN to determine the optimised SEN's effectiveness. The comparison result demonstrated that the designed optimised SEN has a high liquid flow rate, casting speed, density and viscosity.

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Investigation of Process Parameters for Quality Deposition of AL5356 using Cold Metal Transfer Wire Arc Additive Manufacturing (CMT-WAAM)

Kumar,

Singh,

Sharma

et al. 2024

Preprint

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In this study, an investigation of mechanical characteristics, microstructure, and the optimal parameters for wall deposition using response surface methodology is done. Testing for microhardness in the deposition directions, Charpy impact, and tensile testing at room temperature were used to evaluate the printed structures. The tensile test results showed that the center layers exhibit a maximum yield strength of 191 MPa, ultimate tensile strength of 321 MPa, and elongation of 16.03%. The toughness measurement by Charpy testing shows the maximum value of 23.57 J in the core layer. The top layer has a hardness of 65.73Hv, higher than the rest of the sample. The impact of SOD, TS, and WFR on BW, BH, and AR were determined after optimizing the parameters. The responses find that the optimal parameters for single-layer deposition are a wire feed rate (WFR) of 7 mm/min, a standoff distance (SOD) of 20mm, and a travel speed (TS) of 20 cm/min. Wire Arc Additive Manufacturing (WAAM) parameters were investigated using additional statistical methods, including Analysis of Variance (ANOVA) and the desirability function.

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Numerical simulation of the nozzle configuration in strip casting process

Cited by 4 publications

References 20 publications

Full-Process Numerical Simulation of Flow, Heat Transfer and Solidification for Hot Stamping Steel Manufactured via Thin Slab Continuous Casting Process

Full-Process Numerical Simulation of Flow, Heat Transfer and Solidification for Hot Stamping Steel Manufactured via Thin Slab Continuous Casting Process

Continuous casting process based on an optimized submerged entry nozzle

Investigation of Process Parameters for Quality Deposition of AL5356 using Cold Metal Transfer Wire Arc Additive Manufacturing (CMT-WAAM)

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