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
Continuous improvement through feedback and analysis of defect data. By understanding the causes and types of casting defects and implementing appropriate solutions, manufacturers can improve the quality, integrity, and reliability of castings, resulting in higher performance and customer satisfaction.
Vol. 3, No. 5 Modeling of Continuous Casting Defects Related to Mold Fluid Flow Brian G. Thomas, Department of Mechanical and Industrial Engineering, University of Illinois at UrbanaChampaign, Urbana, Ill. ([email protected]) ABSTRACT The quality of continuously cast steel is greatly influenced by fluid flow in the mold, particularly at the …
Casting defects such as longitudinal cracks can reduce the quality of a slab or lead to strand breakouts. To detect such casting defects, much effort has been made in …
Serious defects in the continuous casting of steel, including surface cracks and depressions, are often related to thermal-mechanical behavior during solidification in the …
1. Steel Continuous Casting Continuous casting is a relatively new process in historical terms. Although the continuous strip casting process was conceived by Bessemer in 1858, the continuous casting of steel did not gain widespread use until the 1960s. Earlier attempts suffered from technical difficulties such as
Continuous casting is only a problem of keeping and impossible to correct steelmaking and equipment. In the whole operation, there will be some defects in the billet, which affects the normal ...
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 …
The formation of defects such as cracks in continuous casting deteriorates the quality of cast products and efficiency of steelmaking. To evaluate the risks and identify the root causes of defect formation, phenomenological quality criteria computed with a solidification and microstructure model known as InterDendritic Solidification (IDS) have …
To reduce the defects related to multiphase flow phenomena in continuous steel casting, caster geometry (nozzle port angle, size, and shape, mold width and thickness, etc) and process conditions (casting speed, argon gas injection, nozzle submergence depth, electromagnetic forces) must be controlled together within windows …
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.
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.
Continuous casting may be defined as teeming of liquid steel in a short mould with a false bottom through which partially solidified cast is continuously withdrawn at the same rate at which liquid metal is poured into the mould. The main components for continuous casting, basic principle, mechanism of powder lubrication and types of …
Classical Approaches for Defect Detection in Continuous Casting Casting defects such as longitudinal cracks can reduce the quality of a slab 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 pre-vent those defects. The following sec-
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 …
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 ...
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 …
The quality of continuous-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 investigate the formation of several different types of defects related to flow phenomena.
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
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, …
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.
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 …
When a casting defect is present, it can hurt the integrity or functionality of the product. Some casting defects can be tolerated but most will need to be removed or prevented. ... Design a running (gate) system with risers that ensure a continuous flow of molten metal; Increase local heat dissipation by inserting internal chills, cooling ribs ...
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 ...
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The control of defects in continuous casting (CC) blooms determines the quality performance of the steel rails. Defects in casting products often cause serious …
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 …
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 …
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 …
Real-time forecasting of subsurface inclusion defects for continuous slab casting is of great significance to the steel industry. It is, however, a hard task. This paper introduces data-driven methods to …
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