Monitoring Of Solidification In The Continuous Casting

Modeling of the Solidification Process in a Continuous ...

A schematic representation of a continuous casting in-stallation for steel slabs in shown in Figure 1, where we can identify the following process sequence: (1) The liquid steel is poured into a copper mold, which is refrigerated with an external water jacket. The cool-ing of the steel and its solidification …

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In situ steel solidification imaging in continuous casting ...

Mar 17, 2020· The dynamic of the steel solidification processes in continuous casting has been the subject of many scientific studies [1, 2].Theoretical models are proposed to partially describe the parameters that affect these processes, such as thermal convection either in a different metal such as aluminium or in lab-based tests [3–5].Laboratory experiments are possible using x-ray computed …

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In-situ steel solidification imaging in continuous casting ...

: Solidification process in continuous casting is a critical part of steel production. The speed and quality of the solidification process determines the quality of final product.

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Solidification and Casting - Department of Materials ...

Casting and Solidification. Casting and Solidification. The focus of the Casting and Solidification group is on fundamentals of solidification, defects formation and microstructure of silicon, aluminium and other light metals. ... Continuous and semi-continuous casting of premium industrial aluminium alloys KPN project, funded by RCN, 2014-2017.

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Characterization and Elimination of Solidification Hooks ...

Trial 2 casting parameters. Results. a. a. b. b. a. b. Three separate casting trials were conducted by ArcelorMittal during the duration of this project, and their casting velocity and oscillation frequency inputs had a pronounced effect on hook length and depth. Trial 1 was the original, unchanged ArcelorMittal casting parameters for this ...

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Rapid Solidification Processing | Steen Research Group

The uniquely superior properties that comes with rapid solidification enables many potential applications, and the high productivity that comes from high speeds, along with the savings in energy, environmental and capital costs that comes with a single-step process makes spin casting machines highly attractive as a processing technology.

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Role of Mould in Continuous Casting of Steel – IspatGuru

May 21, 2014· The function of continuous casting mould is to receive the liquid steel and guarantee a rapid heat transfer to the cooling water to enable quick solidification. The liquid steel, when leaving the mould, must exhibit a just thick enough outer shell to prevent it from splashing over the continuous casting machine parts.

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ABOUT INITIAL SOLIDIFICATION IN CONTINUOUS CASTING …

solidification in the continuous casting process. The mould could be tilted for de-canting the liquid [5]. s Fig. 3 External and internal surfaces of a 0,17 % C-steel billet cast without mould oscillation [5,6]. s Fig. 4 External and internal surfaces of a 0,17 % C-steel billet

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Modeling Solidification Phenomena in the Continuous ...

Modeling Solidification Phenomena in the Continuous Casting of Carbon Steels 123 (Won & Thomas, 2001). In this way, the second ary dendrite arm spacing can be sufficiently computed with respect to carbon content and loca l cooling rates. In another study (Han et al,

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Heat-Transfer and Solidification Model of Continuous Slab ...

Aug 27, 2002· continuous casting process, which are partly summarized in previous literature reviews.[13,14,15]Many continuous-casting models are very sophisticated (even requiring supercomputers to run), so are infeasible for use in an operating environment. The earliest solidification models used one-dimensional

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Chapter 11: Fundamentals of Casting

Six Basic Steps of Casting 4. Solidification process Controlled solidification allows the product to have desired properties Mold should be designed so that shrinkage is controlled 5. Mold removal The casting is removed from the mold Single-use molds are broken away from the casting Permanent molds must be designed so that removal does not

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Electromagnetic Effects on Solidification Defect Formation ...

SOLIDIFICATION BEHAVIOR IN THE PRESENCE OF EXTERNAL FIELDS Electromagnetic Effects on Solidification Defect Formation in Continuous Steel Casting SEONG-MOOK CHO1 and BRIAN G. THOMAS 1,2 1.—Colorado School of Mines, Department of Mechanical Engineering, Brown Hall W470I, 1610 Illinois Street, Golden, CO 80401, USA. 2.—e-mail: [email protected]

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Monitoring of solidification in the continuous casting ...

Jun 01, 2016· Monitoring of solidification in the continuous casting mold by temperature sensors ... adjustment of the casting axis or condition monitoring of the oscillating mechanism. Measured values of temperatures in the wall depend on the exact position of the sensor in the wall, especially in the normal direction to the mold working surface. ...

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Intro to Continuous Casting - CCC - U of I

Continuous casting is distinguished from other solidification processes by its steady state nature, relative to an outside observer in a laboratory frame of reference. The molten metal solidifies against the mold walls while it is simultaneously withdrawn from the bottom of the mold at a rate which maintains the solid / liquid interface at a ...

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Method for monitoring the solidification process during ...

Aug 27, 1991· 2. The method for monitoring the solidification process according to claim 1, wherein the sensor coils are placed inside the levitation coil. 3. The method for monitoring the solidification process according to claim 1, comprising the steps of placing the sensor coils between the continuous casting die and the levitation coil. 4.

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Online Monitoring of the Solidification Front in Metal Casting

Jan 01, 1995· Online Monitoring of the Solidification Front in Metal Casting Jung-Hoon Chun, Richard C. Lanza, Nannaji Saka, Mark M. Hytros Submitted by Nam P. Suh (1) Massachusetts Institute of Technology, Cambrigde, USA Received on January 9,1995 SUMMARY: In the continuous and semi-continuous casting of metals and alloys, the shape and location of the solidification front greatly …

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Solidification control in continuous casting of steel ...

An integrated understanding of heat transfer during solidification, friction/lubrication at solid-liquid interface, high temperature properties of the solidifying shell etc. is necessary to control the continuous casting process. The present paper elaborates upon the knowledge developed in the areas of initial shell formation, mode of mould oscillation, and lubrication mechanism.

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Solidification and Particle Entrapment during Continuous ...

Dec 13, 2016· Mianguang Xu, Miaoyong Zhu, Numerical Simulation of the Fluid Flow, Heat Transfer, and Solidification During the Twin-Roll Continuous Casting of Steel and Aluminum, Metallurgical and Materials Transactions B, 10.1007/s11663-015-0486-8, 47, 1, (740-748), (2015).

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Continuous Casting Heat Flow Solidification And Crack ...

continuous casting heat flow solidification and crack formation Sep 13, 2020 Posted By Mary Higgins Clark Public Library TEXT ID 263688fe Online PDF Ebook Epub Library treatment of the interfacial gap in the mold which is the most important thermal resistance the model includes heat mass momentum and force balances on buy continuous

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CONTINUOUS CASTING - Primetals Technologies

continuous casters that apply soft reduction prior to solidification of the strand, Speed Expert will set the casting speed in such a way that the soft reduction pro-cess is completed right at the end of a movable seg-ment. Most remarkably, the system can determine the casting speed necessary to achieve this online during a casting sequence.

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Experimental Simulation of the Solidification of Steel at ...

In conventional continuous casting, the time for the solidification of the strand ranges between a few minutes and an hour. A very slow going solidification process is the casting of large forging ingots with a weight of up to several hundred tons. The solidification may take a time of more than a day.

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(PDF) Effect of uneven solidification on the quality of ...

Solidification during slab continuous casting is of importance to the quality of steel products. Non-uniform cooling often occurs during slab continuous casting, leading to uneven solidification ...

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Macro solidification simulation during continuous casting ...

Jan 01, 2008· Establishing the shape and position of solidification front, at a continuous cast slab (DC or EMC) is a dynamic process that goes after some time on a stationary state The 2D mathematical model presented in this paper, based on previos models of the authors (Munteanu, S. I., et al., 2005) allows reproducing the dynamics of this process and ...

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Continuous casting - Wikipedia

Continuous casting, also called strand casting, is the process whereby molten metal is solidified into a "semifinished" billet, bloom, or slab for subsequent rolling in the finishing mills. Prior to the introduction of continuous casting in the 1950s, steel was poured into stationary molds to form ingots.Since then, "continuous casting" has evolved to achieve improved yield, quality ...

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[PDF] The Influence of Different Casting Method on ...

Abstruct -Solidification time is one of the very important parameters used for assessing the properties of the material. Aluminum casting alloys with tin as the major alloying elements are the most important commercial casting alloys because of their superior casting characteristics. This paper presents influence of different casting method on solidification time and mechanical properties of ...

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On the formation of centreline shrinkage porosity in the ...

May 24, 2020· A recent asymptotic model for solidification shrinkage-induced macrosegregation in the continuous casting of binary alloys is extended for the purposes of understanding the link between solute segregation and centreline shrinkage porosity, a defect that commonly occurs in the continuous casting of steel. In particular, the analysis elucidates the relationship between microsegregation, …

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The continuous casting process | TassoBar

Continuous cast material is produced from a melt in the form of an (in theory) infinitely long cast iron bar in either grey (GJL) or ductile iron (GJS). Continuous casting is a casting method, in which the steps of pouring, solidification and drawing of casting from an open-end mould are carried out continuously.

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Monitoring of solidification in the continuous casting ...

Jun 30, 2016· Lamp, H. Köchner, I. J. Unamuno and D. T. Rodríguez, Optical Monitoring of Initial Solidification in a Billet Continuous Casting Mould, in Proceedings 7th European Continuous Casting Conference METEC InSteelCon 2011, (Technologie Marketing AG, Düsseldorf, 2011).

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Continuous Casting - Manufacturing

Continuous casting manufacture is different from other metal casting processes, particularly in the timing of the process. In other casting operations, the different steps to the process such as the ladling of metal, pouring, solidification, and casting removal all take place one at a time in a sequential order.

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Electromagnetic Effects on Solidification Defect Formation ...

Sep 03, 2020· Continuous casting is the most widely used process to manufacture steel, accounting for > 96% of steel in the world.1 Thus, even small improvements to this process can greatly impact the industry. During continuous casting, molten steel flows into the mold cavity through a submerged nozzle and freezes against the water-cooled mold plates in the presence of turbulent fluid flow, argon gas ...

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