Physical Modelling of Liquid Feeding for an Unequal Diameter Two Roll Thin Strip Caster

Şen, Nuri̇; Sau, Rajes; Mazumdar, S.; Ghosh, Monidipa; Sahay, S K; Ray, Ashok K

doi:10.1179/cmq.1998.37.2.161

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Physical simulation methods [11,12] have been widely used in the study of closed vessels, in which Brimacombe [13] and Castillejose [14] studied the gas-liquid change in the reactor based on physical simulation. Mazumdar [15] also studied the 1:1 tundish water model by physical simulation and determined the appropriate tundish structure by judging the flow pattern in the tundish. Based on the splash behaviour obtained by a numerical simulation in the oxygen coal combustion melting and separation furnace submerged molten pool area [16], combined with experimental results, by studying the stirring intensity of the molten pool, we observed another type of liquid level sloshing with periodic and regular characteristics in the oxygen coal combustion melting and separation furnace molten pool area, which is different from the 'splash behaviour'.…”

Section: Introductionmentioning

confidence: 99%

Physical simulation of macroinstability behaviour of liquid level in oxygen coal combustion melting and separation furnace

Shen

Zhao

Zhang

et al. 2022

Ironmaking & Steelmaking

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Through visualization experiments, the macroinstability behaviour in the molten pool of the oxygen coal combustion melting and separation furnace was analysed by a physical simulation. In the experiment, images were acquired using a high-speed camera and an image processing system was used to track the gas-phase change in the local area of the molten pool and regular fluctuation of the molten pool in real time. Among them, bubble as the carrier of jet energy transfer and liquid level fluctuation. A close connection was observed between the local area bubble motion, jet behaviour, and macroinstability characteristics of the liquid level. The effects of different variables on the local stirring of the molten pool and overall macroinstability were compared. The developed ironmaking process parameters were optimized. The optimal immersion depth of the oxygen lance was 15 mm, while the optimal diameter of the oxygen lance was 4 mm.

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Section: Introductionmentioning

confidence: 99%

Physical simulation of macroinstability behaviour of liquid level in oxygen coal combustion melting and separation furnace

Shen

Zhao

Zhang

et al. 2022

Ironmaking & Steelmaking

View full text Add to dashboard Cite

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Development of laboratory scale thin strip caster and investigation of direct casting of AISI 304 stainless steel

Ghosh¹,

Şen²,

Paul³

et al. 2000

Ironmaking & Steelmaking

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An unequal diameter (1 : 3), two roll thin strip cessing, are some of the expected benefits of the procedure. casting machine has been designed and fabricatedThe history of thin strip casting dates back to the 1850s.1 for investigation of the direct casting of thin strip Highly precise control of process parameters is required on a laboratory scale. The system consists of a for successful operation on an industrial scale. A large preheatable shallow tundish with online heating number of research organisations have been working on facility, water cooled rotating rolls (chill and the development of the technology and a number of reviews auxiliary) for solidification of the liquid metal, and have been published.2 a stripper assembly. The machine has a variable The Research and Development Centre for Iron and Steel, speed. Roll gap setting and roll pressure Steel Authority of India Ltd (SAIL) embarked upon a proadjustment are two important features of the gramme of study of thin strip casting in 1988. The studies machine. It is also possible to vary the placement were first conducted using a single roll caster, which was angle of the auxiliary roll with respect to the chill subsequently converted to a two roll, unequal diameter horiroll. A heat transfer model was developed, based zontal caster. The objective was to develop design and process on experimental casting results. Experiments were parameters for a laboratory scale caster through physicalconducted using AISI 304 grade stainless steel. Up mathematical modelling and experimental investigation using to 100 kg of steel was cast without interruption into AISI 304 stainless steel. strips of widths 100 and 200 mm and thickness varying between 1 and 2 mm. Some of the process parameters affecting the quality of the strip were DESIGN FEATURES identified. I&S/1460The experimental cast shown in Fig. 1 has been designed for the following parameters:

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Modelagem física do sistema de alimentação do processo Twin Roll para lingotamento contínuo de tiras de aço inoxidável

Spinelli

Santos

Garcia

et al. 2002

Rem: Rev. Esc. Minas

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Entende-se, por modelagem de processo, o desenvolvimento de uma representação quantitativa ou qualitativa dos fenômenos físicos associados ao processo. O tipo e a forma do distribuidor, o controle do fluxo e o posicionamento de obstáculos são importantes fatores no projeto do sistema de alimentação de metal líquido para o lingotamento contínuo de tiras de aço. Nesse trabalho, são realizadas simulações do processo Twin Roll de lingotamento contínuo de tiras de aços, utilizando, como referência tecnológica, o equipamento-piloto instalado nas dependências do Instituto de Pesquisas Tecnológicas do Estado de São Paulo (IPT). Foi construído um simulador a frio do distribuidor do equipamento (em escala 1:1), com componentes feitos de acrílico, com água como fluido de simulação e com permanganato de potássio como corante. O simulador contribuiu para melhorias de produtividade e para a limpeza do produto.
It can be understood by process modeling the development of a quantitative or qualitative representation of the physical phenomena associated to the process. Important factors in the design of a metal feeding system for thin strip casting of steels are size and shape of tundish, type and location of flow control devices. In this article, simulations concerning the Twin Roll continuous caster of steels process at IPT (Technologic Research Institute) are performed. In order to optimize steel flow a 1:1 water model was designed and constructed with components made of acrylic, water as the simulation fluid and potassium permanganate as a pigment. The use of an appropriate arrangement of turbulence inhibiting dams and weirs can provide an output fluid flow pattern suitable for input to a thin strip caster. The simulator has contributed to improve the productivity and cleanliness of the strip casting of steel

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Physical Modelling of Liquid Feeding for an Unequal Diameter Two Roll Thin Strip Caster

Cited by 3 publications

References 4 publications

Physical simulation of macroinstability behaviour of liquid level in oxygen coal combustion melting and separation furnace

Physical simulation of macroinstability behaviour of liquid level in oxygen coal combustion melting and separation furnace

Development of laboratory scale thin strip caster and investigation of direct casting of AISI 304 stainless steel

Modelagem física do sistema de alimentação do processo Twin Roll para lingotamento contínuo de tiras de aço inoxidável

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