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Avaliação da utilização de diferentes materiais para diminuição da tendência de colagem de pelotas durante o processo de redução direta
(Universidade Federal de Minas GeraisUFMG, 2012-05-02)
The process for obtaining metallic iron by direct reduction of iron ore is very important for the iron making and its technology has developed significantly in recent decades. The formation of clusters by sticking the ...
Obtenção de fertilizante fosfatado de alta solubilidade a partir de calcinado de osso bovino
(Universidade Federal de Minas GeraisUFMG, 2012-02-29)
Phosphorus is an essential macronutrient for the development of plants, which is not found in sufficient amounts in Brazilian soils, justifying its large consumption in the country. The traditional phosphates fertilizers ...
Desenvolvimento de uma análise sistêmica de cenários prospectivos para o setor de pelotas de minério de ferro brasileiro
(Universidade Federal de Minas GeraisUFMG, 2012-06-29)
The iron ore mining sector has undergone profound changes in its fundamentals as a result of combined factors: demand growth, high quality reserves exhaustion and the geo-economic context. These changes have increased the ...
Avaliação experimental e teórica do torque no laminador de chapas grossas da Usiminas
(Universidade Federal de Minas GeraisUFMG, 2010-10-18)
Controlled rolling, CR, is an effective means of producing steels with high mechanical resistance and high toughness. CR is a thermomechanical process commoly employed in plate mills throughout the world in the production ...
Síntese e caracterização de nanocompósitos PVA/nanotubos de carbono para potencial aplicação biomédica"
(Universidade Federal de Minas GeraisUFMG, 2011-02-07)
In recent years, nanocomposites formed from polymeric materials and carbon nanotubes (CNTs) have been extensively studied due to their interesting mechanical properties and possible uses in various applications. In this ...
Influência das temperaturas de encharque e superenvelhecimento nas propriedades mecânicas de um aço ultra baixo carbono com características BH processado via recozimento contínuo
(Universidade Federal de Minas GeraisUFMG, 2010-05-28)
This study evaluated the effects of variations in the conditions of soaking and overaging continuous annealing on mechanical properties in tension, drawability Value (R n) and the increase of mechanical strength by aging ...
Estudo dos parâmetros de influência na simulação numérica de estampagem de chapas
(Universidade Federal de Minas GeraisUFMG, 2002-11-07)
The numerical simulation of the deep drawing of steel sheets requires data about the product geometry, the material properties, and the process itself. Numerical simulation has been widely applied to predict and visualize ...
Desenvolvimento de um modelo de controle de processo para altos-fornos a coque aplicado a altos-fornos industriais
(Universidade Federal de Minas GeraisUFMG, 2016-08-30)
This work describes the development of a thermochemical model based on mass balance and thermal control for blast furnace. With this model can calculate operational indices of the blast furnace. These indices show the ...
Desenvolvimento de uma metodologia de análise de custos: uma aplicação na laminação contínua da Vallourec & Mannesmann Tubes do Brasil
(Universidade Federal de Minas GeraisUFMG, 2011-03-30)
This paper seeks to develop a methodology for costs analysis able to take into account the differences between the languages of the technical staff and the senior management staff in order to maximize the financial outcome ...