Neural Network Modelling to Characterize Steel Continuous Casting Process Parameters and Prediction of Casting Defects

2019 ◽  
Vol 72 (12) ◽  
pp. 3015-3025
Author(s):  
Sheuli Hore ◽  
Suchandan K. Das ◽  
Manoj M. Humane ◽  
Anil Kumar Peethala
Keyword(s):  
Neural Network ◽  
Continuous Casting ◽  
Process Parameters ◽  
Casting Process ◽  
Casting Defects ◽  
Continuous Casting Process ◽  
Network Modelling ◽  
Neural Network Modelling ◽  
Steel Continuous Casting

R-GPC Controller of Mold Level in a Steel Continuous Casting Process with Bulging

2018 ◽  
Author(s):  
Rogerio Passos do Amaral Pereira ◽  
Gustavo Maia de Almeida ◽  
Marco Antonio de Souza L. Cuadros ◽  
Jose Leandro Felix Salles ◽  
Teodiano Freire Bastos Filho ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Casting Process ◽  
Continuous Casting Process ◽  
Steel Continuous Casting

Reasons for Breakage of Welding Rod and Wire

2019 ◽  
Vol 946 ◽  
pp. 247-252
Author(s):  
Alexandr Sychkov ◽  
O.N. Tulupov ◽  
Alexandr Moller
Keyword(s):  
Continuous Casting ◽  
Cross Sections ◽  
Casting Process ◽  
Continuous Casting Process ◽  
Basic Reason ◽  
Wire Breakage ◽  
Steel Continuous Casting ◽  
Furnace Treatment

Reasons for breakage of welding rod and wire at drawing are analyzed. It is shown that the basic reason for breakage is microphysical tree-like segregation which is caused by irrational addition of boron-containing material at after-furnace treatment, low effectiveness of steel continuous casting process, unproven technology of metal electromagnetic agitation in a mold at continuous casting. Peculiarities of alloyed elements liquation, both in welding rod and wire are studied. It is shown that non-uniformity of boron, manganese and silicon distributions in the longitudinal and transversal welding rod cross sections will become the main reason for increasing wire breakage during further drawing.

scholarly journals Developments in finite element simulations of continuous casting

2004 ◽  
Vol 120 ◽  
pp. 447-455
Author(s):  
S. Castagne ◽  
F. Pascon ◽  
G. Blès ◽  
A.-M. Habraken
Keyword(s):  
Finite Element ◽  
Free Surface ◽  
Continuous Casting ◽  
Mechanical Behaviour ◽  
Casting Process ◽  
Finite Element Simulations ◽  
Finite Element Code ◽  
Continuous Casting Process ◽  
Steel Continuous Casting

Two complementary approaches of steel continuous casting modelling using the finite element code LAGAMINE have been developed in the M&S Department. We propose here a description of the context in which the study started, then a description of both macroscopic and mesoscopic approaches. The first one describes the whole continuous casting process, from the free surface in the mould and through the entire machine, including thermal and mechanical behaviour of the steel. The second approach focuses on the prediction of cracks and is developed at the grain scale. Some results are also presented for both models.

scholarly journals Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions

Metals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 993
Author(s):  
Yingying Zhai ◽  
Kefeng Pan ◽  
Dapeng Wu
Keyword(s):  
Continuous Casting ◽  
Water Flow ◽  
Process Parameters ◽  
Casting Speed ◽  
Casting Process ◽  
Solidification Structure ◽  
Process Conditions ◽  
Equiaxed Crystal ◽  
Continuous Casting Process ◽  
Simulation Results

While the solidification macrostructure of continuous cast billets is an important factor influencing the final performance and rolling yield of oil casing steel, the continuous casting process parameters have a direct influence on the solidification structure. This study simulated the solidification process of the continuous casting round billets of oil casing steel using a cellular automaton–finite element (CAFE) model. According to the simulation results, at a superheat degree of 20–35 K, a casting speed of 1.9–2.1 m/min, and a secondary cooling specific water flow of 0.34–0.45 L/Kg, the solidification structure had a relatively high equiaxed crystal ratio and small average grain radius. Guided by the simulation results, this paper establishes optimal process schemes for producing 26CrMoVTiB steel round billets, comparatively analyzes the equiaxed crystal ratio and central shrinkage of round billets produced according to these schemes, and defines the optimal continuous casting process conditions, which are: superheat degree = 25 K, casting speed = 2.1 m/min, and specific water flow = 0.35 L/Kg. When adopting these process parameters, the 26CrMoVTiB steel round billets demonstrate a tiny central shrinkage and an equiaxed crystal ratio of 45.2%.

Numerical Simulation on Optimization of Center Segregation for 50CrMo Structural Alloy Steel

2016 ◽  
Vol 35 (6) ◽  
pp. 583-589 ◽  
Author(s):  
Xiangzhou Gao ◽  
Shufeng Yang ◽  
Jingshe Li ◽  
Hang Liao
Keyword(s):  
Continuous Casting ◽  
Alloy Steel ◽  
Process Parameters ◽  
Casting Process ◽  
Heat Transfer Process ◽  
Equiaxed Crystal ◽  
Secondary Cooling ◽  
Structural Alloy ◽  
Continuous Casting Process ◽  
Cooling Intensity

AbstractTo improve the center segregation of billet for 50CrMo structural alloy steel, a 3D numerical model of solidification and heat transfer process for continuous casting had been established. The influence law of continuous casting process parameters on the secondary dendrite arm spacing (SDAS) and equiaxed crystal ratio had been obtained. It was shown that reducing superheat and casting speed and increasing the secondary cooling intensity could decrease SDAS. Reducing any one of the three parameters could increase the equiaxed crystal ratio. Adjusting only secondary cooling intensity could not make the SDAS and equiaxed crystal ratio change in the desired direction, but regulating the other two parameters could supply this gap. After optimizing the continuous casting process parameters of 50CrMo billet, the defect of center segregation was solved basically.

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