Machine learning in continuous casting of steel: a state-of …
Continuous casting is the most important route for the production of steel today. Due to the physical, mechanical, and chemical components involved in the production, continuous casting is a very complex process, pushing conventional methods of monitoring and control to their limits. ... Statistical control of defects in a continuously …
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Deep Learning-Based Understanding of Defects in Continuous Casting …
Continuous casting involves the process of transforming liquid steel into solid continuous cast products through cooling and solidification within a continuous casting machine . In the course of continuous casting production, due to various factors, different types of defects may be present in the products, such as segregation, cracks, …
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ASSESSMENT OF SURFACE DEFECTS IN THE …
number and type of defects detected at the reception of the studied metallic material. KEYWORDS: steel, continuous casting, surface defects INTRODUCTION The continuous casting process, both in the technological aspect as well as on the plant parameters, was and remained a basic concern of all the specialists in the major steel …
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Continuous Casting and Continuous Rolling | SpringerLink
Continuous casting and continuous rolling require a high degree of continuous production, and the billet must be defect-free (or although there are defects, they can be eliminated or weakened in the rolling process and are harmless to the performance of finished products); (2) stable and reasonable billet temperature.
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ASSESSMENT OF SURFACE DEFECTS IN THE …
The defects of material at the steel continuous casting appear during the solidification and cooling of the continuously cast semi-finished product, often leading to significant metal …
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Problems concerning the surface quality of continuous-cast …
This article examines the main types of surface defects on slabs and their causes. A general explanation is given for the nucleation and growth of surface cracks. An analysis is made of the possibility of applying criteria from the fracture mechanics of deformable solids to the conditions that exist during the continuous casting of steel slabs.
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Comprehensive Guide to Understanding and Resolving Casting Defects
Understanding and resolving casting defects requires a comprehensive approach that covers various aspects of the casting process. Here is a comprehensive guide that outlines the key steps involved in understanding and resolving casting defects: ... Collaboration and Continuous Learning: Foster collaboration among casting …
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Three-Dimensional Characterization of Defects in …
The control of defects in continuous casting (CC) blooms determines the quality performance of the steel rails. Defects in casting products often cause serious …
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Continuous Casting Practices for Steel: Past, Present and …
Continuous casting practices for steelmaking have been constantly evolving ever since the early 1930s, when Junghans was first researching ways to pour liquid steel into an open-bottomed, water-cooled mold, to withdraw the partially solidified steel out of it, continuously, in the form of a round or square billet or slab [1,2].He envisioned that once …
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Real-Time Forecasting of Subsurface Inclusion Defects for Continuous …
Subsurface inclusions are one of the most common defects that affect the inner quality of continuous casting slabs. This increases the defects in the final products and increases the complexity of the hot charge rolling process and may even cause breakout accidents. The defects are, however, hard to detect online by traditional …
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Continuous Casting of Steel
These model applications focus on the mold region, where many continuous casting defects are generated. 2 II. Process Description In the continuous casting process, pictured in Figure 1, molten steel flows from a ladle, through a tundish into the mold. It should be protected from exposure to air by a slag cover over each
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Atlas of Casting Defects
Casting Defects Investment Casting Institute 136 Summit Avenue Montvale, NJ 07645-1720 Phone: 201-573-9770 Fax: 201-573-9771 Acknowledgments The Investment Casting Institute wishes to thank all of the members of the Institute's Publication and
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Types of Casting Defects and How to Prevent Them
How to Prevent Casting Shape Defects. To prevent casting shape defects, check to make sure the plate pattern mounting and alignment are the same. This can help to see if there are inaccuracies in the pins. Sometimes reassembling the mold can fix the problem.
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Real-Time Defect Prevention in Continuous Casting
Classical Approaches for Defect Detection in Continuous Casting. Casting defects like longitudinal cracks are defects, which can reduce the quality of a slab or lead to strand …
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The Comprehensive Guide to Casting Defects and Their …
Causes: Surface cracks and lines on the casting due to the expansion of sand mold during pouring. Can result from high mold temperature or inadequate mold support. To prevent casting defects, it's essential to optimize the casting process, design appropriate molds, control pouring parameters, and maintain the quality of raw materials.
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Statistical Control of Defects in a Continuously Cast Billet …
We consider the problems of defects arising in the production of continuously cast billets at continuous casting plants. We propose a model for predicting slab cracks based on the random forest machine learning algorithm. We determine the main technological parameters that influence the appearance of cracks and present the …
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Causes and Preventions of Continuous Casting Defects
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A review on prediction of casting defects in steel ingots: …
Due to the nature of the solute redistribution, the reduction in the solidification rate with time in a square root relationship, and the multiphase melt flow during the solidification, casting defects such as macrosegregation, shrinkage cavity, and porosity will inevitably occur in the steel ingot and intensify with the increase in ingot size. These …
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A Review on Causes of Surface Defects in Continuous Casting
A review on the causes of the foremost defects in continuous casting, based on an extensive literature survey, is given. The specific defects which are considered are transversal and longitudinal cracking, inclusions, sticking, bleeding, oscillation …
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Modeling of continuous casting defects related to mold …
T1 - Modeling of continuous casting defects related to mold fluid flow. AU - Thomas, Brian G. PY - 2006/7. Y1 - 2006/7. N2 - The quality of continuously cast steel is greatly influenced by fluid flow in the mold, particularly at the meniscus. Recent examples of computational model applications at the University of Illinois are presented to ...
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A Review on Causes of Surface Defects in Continuous Casting
DOI: 10.1016/S1474-6670(17)37613-9 Corpus ID: 114811600; A Review on Causes of Surface Defects in Continuous Casting @article{CamisaniCalzolari2003ARO, title={A Review on Causes of Surface Defects in Continuous Casting}, author={F. R. Camisani-Calzolari and Ian Keith Craig and Petrus Christiaan Pistorius}, journal={IFAC …
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Continuous Casting (metallurgy)
B.G. Thomas, "Continuous Casting", Yearbook of Science and Technology, McGraw-Hill, 2004. 1 Continuous Casting (metallurgy) B.G. Thomas Mechanical & Industrial Engineering ... and fewer other defects than found in conventional continuous casting. Their products are more costly, but are needed for critical parts such as found in the ...
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Modeling of Continuous-Casting Defects Related to …
Modeling of Continuous-Casting Defects Related to Mold Fluid Flow Brian G. Thomas Department of Mechanical and Industrial Engineering 140 Mech. Engr. Bldg., MC-244, 1206 W. Green St. Univ. of Illinois at Urbana-Champaign ... In the continuous casting of steel, the task of the flow system is to transport molten steel at a desired flow rate from ...
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Casting Defects | Cast Technologies
Impact your casting quality by understanding and preventing common casting defects—learn how and elevate your results. ... It could be a minor adjustment in cooling time or a major overhaul in your casting method; Continuous Learning and Training: Ensure your team is regularly trained on new techniques and preventive …
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Formation and control of the surface defect in hypo
Hypo-peritectic steels are widely used in various industrial fields because of their high strength, high toughness, high processability, high weldability, and low material cost. However, surface defects are liable to occur during continuous casting, which includes depression, longitudinal cracks, deep oscillation marks, and severe level …
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Surface Defect Formation in Steel Continuous Casting
Serious defects in the continuous casting of steel, including surface cracks and depressions, are often related to thermal-mechanical behavior during solidification in the …
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(PDF) Continuous Casting
The continuous casting processes of metals develop every day and even though, old challenges remain and new ones appear, every method of minimizing casting defects, increasing the quality of the ...
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Continuous Casting Process
Continuous casting is a critical process as any defects introduced during solidification are difficult to remove in later processes. MIT has been used to study two-phase molten steel–argon flows that occur in the submerged entry nozzle, which is used to transport liquid steel into the mould.
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Real-Time Defect Prevention in Continuous Casting
Classical Approaches for Defect Detection in Continuous Casting Casting defects like longitudinal cracks are de fects, which can reduce the quality of a sl ab or lead to strand breakouts. To detect such casting defects, much effort has been made in previous works to find solutions which can detect and prevent those defects.
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Modeling of Continuous Casting Defects Related to Mold …
In the continuous-casting process, the flow state of molten steel in the mold has a great influence on the quality of the billet. Especially in the casting of a thin-slab with high casting speed ...
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