Electromagnetic Stirring And Braking Devices For Slab Casting

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Enhancing mold flow control in continuous slab casting process

for continuous casting – Simultaneous stirring and braking in the mold from one fixed position – Automated control and optimization of continuous casting process in real time. Creating best possible flow for electromagnetic devices that adjust to varying casting conditions – Increased control of molten steel flows by getting

(PDF) Development of EMBr/EMS Multifunction Mold

EMBr (ElectroMagnetic Brake) and in-mold EMS (ElectroMagnetic Stirring) have been developed to control molten steel flow in a continuous casting mold. EMBr is able to stabilize the molten flow in ...

(PDF) Study on continuous casting of cladding aluminium ...

The effects of electromagnetic brake (EMBR) on the flow of liquid melt during continuous casting of cladding aluminium alloys are investigated by numerical simulation and validated by experiments.

In-mold electromagnetic stirring in continuous casting

Electromagnetic braking (EMB) and electromagnetic stirring (EMS) are widely used to increase the efficiency in continuous casting process of steel. ... Electromagnetic devices such as stirrers and ...

Continuous Casting of Steel - ScienceDirect

Jan 01, 2014· The principle of the continuous casting method is simple (Figure 1.8.1).The liquid steel in a ladle is transferred to the casting machine. When the casting operation starts, the nozzle at the bottom of the ladle is opened and the steel flows at a controlled rate into the tundish and from the tundish through a submerged entry nozzle (SEN) into one mold or several molds.

Applying MHD technology to the continuous casting of steel ...

The application of magnetohydrodynamics (MHD) in the continuous casting process started with the electromagnetic stirring of the stand pool with a traveling magnetic field. It has now advanced to the electromagnetic stirring of molten steel in the mold and the control of molten steel flow by an in-mold direct current magnetic field brake. These applied MHD techniques are designed to further ...

Metals | Special Issue : Electromagnetic Stirring ...

The transient numerical model combined with the volume of fluid (VOF) approach is employed to investigate the steel/slag interface behavior under multifunction electromagnetic driving in a continuous casting slab mold. Here, electromagnetic stirring (EMS) and electromagnetic braking (EMBr), respectively, are chosen as flow multifunction control ...

Electromagnetic Phenomena in Steel Continuous Casting ...

The application of magnetohydrodynamics (MHD) in the continuous casting process of steel has now advanced to electromagnetic stirring in the mold and the control of molten steel flow by an in-mold direct-current (DC) magnetic field brake. These applied MHD technologies are designed to improve further the continuous casting (CC) process capability.

ABB Ability™ Optimold Control for EMBR Performance ...

thin slab casting. Overview Though the ABB Electromagnetic Brake (EMBR) is installed on over 40% of thin slab caster strands worldwide and already generating improvements in both productivity, end-product quality and profit - ability in thin slab casting, digitalization provides us with new tools for enhancing the performance of

Closed loop control of an electromagnetic stirrer in the ...

The continuous casting (CC) process is a crucial factor in determining quality of steel slabs, therefore directly affecting the scrap percentage and manufacturing costs. By braking or accelerating the liquid steel in the casting mould with the electromagnetic stirring (EMS) technique, the flow speed can remain in an optimal range in terms of slab quality. The EMS device employed in the CC of ...

Optimizing the Flow Conditions in the Thin-Slab Casting ...

During continuous casting of steel slabs, electromagnetic forces can be applied to help control the flow pattern in the mold, augmenting the effects of nozzle and strand geometry, casting speed ...

Electromagnetic stirring for continuous casting - Part 2 ...

Rotational mould stirring is the predominant application. For slabs, butterfly type single and double strand stirring and rotational mould stirring coexist with different metallurgical purposes. Also, the evolution to higher casting speeds has required a new type of mould stirring that combines accelerating and braking functions.

Enhancing quality and productivity in steelmaking with ...

Electromagnetic stirring for arc and ladle furnaces Stirring, braking and temperature measurement devices for all kinds of slab casting Stirring and braking devices for billet and bloom casting Electromagnetic stabilizer for galvanizing lines Electromagnetic stirring for aluminium furnaces Processes served

Electromagnetic Stirring and Continuous Casting ...

This paper reviews the history of commercial electromagnetic stirring devices used to control the solidification structures of continuously cast products. Besides the theoretical advantages of EMS, the implementation of rotary- and axial-type stirring equipment can also pose serious technical difficulties. Metallurgical problems include convective macrosegregation, bridging, and centrifuging ...

Online Flow Control with Mold Flow Measurements and ...

An online mold flow sensor in combination with an electromagnetic actuator capable of applying time varying braking and stirring forces simultaneously, enable closed loop mold flow control with automatic handling of regular as well as sudden variations in the casting conditions in real time. A control package for the FC Mold G3, a combined two ...

METALLURGY PRODUCTS FC Mold for conventional slab …

fields delivering simultaneous electromagnetic stirring and braking in the mold without the need for repositioning. Suitable for continuous casters operating at all speeds, the FC Mold provides a broad range of process improvements that help enhance productivity and product quality, and even allow for increased casting speed. — FC Mold G3 ...

Continuous Casting Machine and its Equipment – IspatGuru

Jun 13, 2015· Recently, with the technological developments of clean steel practices and electromagnetic stirring, curved CC machines have overcome these restrictions. In general, the complexity of the casting process and machine varies greatly between the types of product being cast (billet, bloom, or slab et.).

Electromagnetic stirring for continuous casting ...

Jun 04, 2003· Rotational mould stirring is the predominant application in billet casting. For slabs, butterfly type single and double strand stirring and rotational mould stirring coexist with different metallurgical purposes. Also, the evolution to higher casting speeds has required a new type of mould stirring that combines accelerating and braking functions.

Numerical model of electromagnetic stirring for continuous ...

Index Terms— Continuous casting, electromagnetic stirring, finite-element model. I. INTRODUCTION ELECTROMAGNETIC stirring has been used in contin-uous casting plants for a long time. It has been applied both to slabs and billets but with different stirring principles. A good review can be found in the work of Tzavaras and Brody

Optimized Electromagnetic Stirring for continuous casting ...

Download Citation | Optimized Electromagnetic Stirring for continuous casting of steel billets and blooms | Electromagnetic stirrers and brakes are today widely used in billet and bloom and slab ...

NS In-Mold Electromagnetic Stirrer (M-EMS) | NIPPON STEEL ...

Uniform stirring of the molten steel within the mold enables stable slab casting while ensuring high quality and high productivity. The NS In-mold Electromagnetic Stirrer (MEMS) eliminates inclusions on the surface of the steel by stirring and controlling the flow of the molten steel within the mold, by means of an electromagnetic force.

ABB Library - Stirrers & Brakes for Steel

In view of its recognized potential in improving cast quality of slabs, the interest for electromagnetic devices has steadily increased over the years. Combining FC Mold for stirring and/or braking in the mold with a novel temperature measuring system, active control of the steel flow conditions close to the meniscus becomes within reach ...

ELECTROMAGNETIC STIRRING OF STEEL: EFFECT OF …

Electromagnetic stirring is widely used in continuous casting of steel as a means to improve homogeneity of cast slabs. Industrial experience has shown that stirrer design and operating conditions have a strong influence on the metallurgical quality of the cast slab. This paper examines the effect of the stirrer current and field frequency on the

EMBR - Electromagnetic brake for thin slab casting ...

Electromagnetic brake for thin slab casting The preferred choice for many steel manufacturers, the EMBR is already installed on 40% of thin slab strands worldwide. Achieve steel cleanliness similar to conventional vertical bending casters, improve casting speed and enjoy further cost savings as the EMBR doubles the lifetime of your mold.

AReviewonManufacturingofComposite Materials by ...

electromagnetic stirring which is widely used in continuous casting of steel as a means to improve homogeneity of cast slabs. Industrial experiments have shown that stirrer design and operating conditions have a strong influence on the metallurgical quality of the cast slab. Author examined the effects of the stirrer current and

Closed loop control of an electromagnetic stirrer in the ...

Jul 01, 2016· Abstract: The continuous casting (CC) process is a crucial factor in determining quality of steel slabs, therefore directly affecting the scrap percentage and manufacturing costs. By braking or accelerating the liquid steel in the casting mould with the electromagnetic stirring (EMS) technique, the flow speed can remain in an optimal range in terms of slab quality.

Electromagnetic stirring and braking devices for slab casting

Electromagnetic stirring and braking devices for slab casting. Are you looking for support or purchase information? ... FC Mold - Simultaneous mold stirring and braking for thick slab casting from one fixed position. FC MEMS - Flow Control Mold ElectroMagnetic Stirrer for conventional slab casters.

Electromagnetic Effects on Solidification Defect Formation ...

Sep 03, 2020· Strand electromagnetic stirring (SEMS) systems induce an electromagnetic field towards one narrow face, which produces vertical recirculating flows in slab casting. Alternatively, S-EMS can produce a horizontal rotating field around the steel shell front, generating a similar flow pattern with M-EMS deep into the strand for bloom and billet ...

JPH07214262A - Method for preventing center segregation of ...

PURPOSE:To prevent the center segregation of a continuous casting slab from occuring by utilizing the electromagnetic force to brake the fluid of molten steel. CONSTITUTION:In the continuous casting of a steel, static magnetic field is impressed at the position where 80% solid phase at the center of the cast slab in the vicinity of the last solidified position in an orthogonal direction to the ...

MODELLING OF ELECTRO MAGNETIC BREAKING AND …

Key words: Continuous Casting, Electromagnetic Breaking, Electromagnetic Stirring, Meshless Methods. Abstract. More than 95 % of crude steel is nowadays processed by Continuous Casting (CC) [1]. To further advance the quality of the products and efficiency of the process, electromagnetic