Tundish
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Physical and mathematical modeling of inclusion behavior in a tundish with gas curtain
Abstract Gas injection in the tundish has been considered as an alternative to optimizing inclusion removal from steels. In the present study, physical and mathematical modeling were used to investigate the effect of gas injection in the tundish on the inclusion removal efficiency. The physical model is a 1/3 reduced scale of an industrial two-strand tundish
REM, Int. Eng. J.. Publicado em: 2020-12
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2. The influence of tundish heating and purging on inclusion formation
Steel with high cleanliness requirements require an accurate control of the non-metallic inclusions, such as its quantity, morphology, chemical composition and size distribution. The continuous casting tundish has a fundamental role in steel cleanliness, avoiding its reoxidation by air and ladle slag that retain inclusions, as well as aiding the removal of t
Rem: Rev. Esc. Minas. Publicado em: 2015-09
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3. Modelamento físico e matemático da formação de placa de Mistura no lingotamento Contínuo Efeitos de modificadores de fluxo no molde
An intermixed slab is formed when different grades of steel are cast in sequence and represents a loss for the steelmaking companies. Use of flow modifiers and reduction of the steel level in the tundish during grade transition to decrease the intermixing length have a limited effect. Beyond a certain point, the length of the intermixed slab is mainly determ
Publicado em: 2010
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4. Thermodynamic study of non-metallic inclusion formation in SAE 1141 steel
The main purpose of this paper is the thermodynamic study of non-metallic inclusion formation in the CC tundish for SAE 1141 steel. The specific purposes are: 1) obtaining inclusions as function of steel composition and casting temperature. 2) establishing steel chemical composition to form less harmful inclusions to the SAE 1141 steel castability. Simulatio
Matéria (Rio de Janeiro). Publicado em: 2010
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5. Modelagem física do sistema de alimentação do processo Twin Roll para lingotamento contínuo de tiras de aço inoxidável
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 t
Publicado em: 2010
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6. Influência do ângulo de posição sobre o fresamento frontal de níquel puro com insertos de metal duro
Nickel is considered as a dificult-to-cut material, due to rapidly work hardening when machined. Because it shows high strength at high temperatures it is widely used as high temperature alloys in aerospacial components and more specifically is applied in the continuous casting industry, in molds which consist of a copper sheet with pure nickel electroplated
Publicado em: 2008
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7. MODELAMENTO MATEMÁTICO DA ZONA DE MISTURA DE AÇOS EM LINGOTAMENTO CONTÍNUO
The increase of the production of steels through continuous casting machines requires long ladle sequences without interruption; if this condition is achieved it brings out stability and safeness and also reduction of operational cost. Companhia Siderúrgica de Tubarão (CST) arrival at the hot rolled coil market is demanding flexibility to supply small tonn
Publicado em: 2006
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8. ESTUDO FENOMENOLÓGICO DO MECANISMO DE OBSTRUÇÃO DO FLUXO DE AÇO DO DISTRIBUIDOR PARA O MOLDE NO INÍCIO DO LINGOTAMENTO CONTÍNUO DE PLACAS
The foccus of this work is the phenomenon known as start freezing blockage of the first batch of liquid steel flowing from tundish to mold through the slide gate system of a continuous casting machine. The flow rate is set by adjusting the position of the refractory sliding gate but in some instances, due to factors such as liquid steel temperature, refracto
Publicado em: 2006
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9. Simulation of thin strip continuous casting of steels / Simulação do lingotamento continuo de tiras finas de aços
It can be understood by process modeling the development of a quantitative or qualitative representation of the physical phenomena associated to the process. In this work, simulations concerning the twin roll continuous caster of steels process at IPT (Instituto de Pesquisas Tecnológicas do Estado de São Paulo) are performed. Two simulators were developed:
Publicado em: 2000
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10. THREE-DIMENSIONAL TURBULENT FLOW IN A CONTINUOS CASTING TUNDISH / ESCOAMENTO TRIDIMENSIONAL TURBULENTO NUM DISTRIBUIDOR DE AÇO PARA LINGOTAMENTO CONTÍNUO
Análise do escoamento tridimensional turbulento, isotérmico, em regime permanente, num distribuir retangular de aço para lingotamento contínuo. No processo de lingo tamento contínuo, o distribuidor é um reservatório intermediário que tem como função distribuidor o metal fundido desde a panela de fundição até os moldes, e remover as inclusões n�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/12/1991