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Análise da influência dos ciclos térmicos de diferentes projetos de fornos recozimento contínuo na microestrutura e propriedades mecânicas de aços bifásicos galvanizados
(Universidade Federal de Minas GeraisUFMG, 2013-02-26)
The automotive industry has increasing their competitive and the steel companies are investing in the development of high strength steels such as dual phase steels, which have a good combination of strength, formability ...
Utilização de filme a base de blenda de polianilina e poli (álcool vinílico) com a finalidade de blindagem eletromagnética
(Universidade Federal de Minas GeraisUFMG, 2008-08-11)
The simultaneous increase of electromagnetic emissions in urban environments and of the embarked electronics leads to a necessity of higher protection to the signals processing central that controls the functions in the ...
Influência das condições de laminação a quente nas propriedades mecânicas de um aço ARBL da classe 700 MPa de limite de escoamento
(Universidade Federal de Minas GeraisUFMG, 2013-08-21)
In this study was evaluated the influence of hot rolling conditions on an industrial scale (reheating of slabs and finishing temperatures), in the tensile mechanical properties, bending and hardness, of a hot rolled HSLA ...
Desenvolvimento de uma rota de processo de dessulfurização de rejeitos de um minério aurífero sulfetado
(Universidade Federal de Minas GeraisUFMG, 2011-02-28)
Since the beginning of its operation in 1987 until the late 90's, Kinross-Paracatu processed almost exclusively weathered or oxidized ores. Ores which are located bellow the B1 ore, containing sulfides and are called B2. ...
Influência da quantidade e morfologia de faialita e sílica nas características de um aço elétrico de grão orientado
(Universidade Federal de Minas GeraisUFMG, 2011-03-25)
Oriented-Grain (GO) electrical steels are materials which show excellent magnetic properties on the rolling direction. These steels have been developed to achieve low core loss and high magnetic permeability, required for ...
Do aço ao minério: um novo modelo de avalição da oferta e demanda global e precificação de minério de ferro
(Universidade Federal de Minas GeraisUFMG, 2014-01-13)
The way that iron ore product prices are determined has changed drastically in the last few years. The industry is going through an adjustment period and the old benchmarks that used to determine prices are no longer ...
Efeito das temperaturas de reaquecimento de placas e de bobinamento nas propriedades mecânicas em tração de um aço microligado ao Nióbio laminado a frio
(Universidade Federal de Minas GeraisUFMG, 2006-12-15)
In this study the effect of soaking and coiling temperatures on the mechanical properties and ferrite grain size of a hot rolled and cold rolled and annealed Nb-HSLA steel was evaluated. The results did not show any effect ...
Desenvolvimento de um sistema para dimensionamento, análise e otimização de circuitos de preparação de minérios
(Universidade Federal de Minas GeraisUFMG, 2013-02-28)
Before an execution of a mineral plant design, several simulations are realized to predict and minimize some errors. There are computational resources that help with these predictions, however these software are complex, ...
Avaliação da conformabilidade e da resistência à indentação dos aços Intersticial Free High Strength Steel (IFHSS) e Bake Hardenable (BH) da classe de 260 MPa de limite de escoamento
(Universidade Federal de Minas GeraisUFMG, 2014-04-24)
The steel industry has as a challenge, to support the automotive industry to reduce the amount of pollutant emission and increase safety of vehicles, the development of steels of lower thickness, with medium and high ...
Avaliação do processamento e propriedades de compósitos de poliuretano termoplástico reforçados com fibras silexil, em comparação com outras fibras/cargas comercialmente utilizadas
(Universidade Federal de Minas GeraisUFMG, 2004-09-23)
The introduction of fibers/fillers in polymers is a common strategy to produce material with enhanced properties and low densities for applications such as in the automobile industry. In this work, a novel kind of an ...