Foundry
Mostrando 13-24 de 114 artigos, teses e dissertações.
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13. Control of chilling tendency in grey cast iron reuse
In grey cast iron remelt and recycling, white iron can result in the cast product if careful control of the chilling tendency is not ensured. Many jobbing foundries are constrained in furnace types and available foundry additives that the operation always results in white irons. This study is towards ensuring grey iron is reproduced from cast iron scrap auto
Mat. Res.. Publicado em: 22/11/2012
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14. Análise da viabilidade do uso da liga AA332 para processos de tixoconformação / Evaluation of thixoformability of AA332 for the thixoforming technology
A tecnologia de semi-sólidos normalmente utiliza ligas de alumínio de baixo silício, como AA356 (Al-7,0wt%Si) como matéria-prima. Ligas contendo alto teor de silício com uma composição quasi-eutética diminuem a faixa semi-sólida, tornando difícil controlar a temperatura de tixoconformação. Entretanto, ligas de alumínio com alto teor de silício
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2011
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15. Implementação do programa de produção mais limpa em uma indústria de fundição de pequeno porte
A indústria de Fundição contribui para a sociedade atendendo a demanda da produção e reciclagem de peças metálicas, porém possui uma gama de aspectos ambientais por utilizar quantidades significativas de matérias primas extraídas do meio ambiente e produzir uma série de resíduos contaminantes que geram consequentes impactos ambientais. Assim, tor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
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16. Experimental investigation on the effects of recycled aggregate on fracture behavior of polymer concrete
The sustainable management of solid wastes stimulates metallurgic and metal mechanics industries to look for safety applications for these wastes. The present paper examines the fracture behavior of polymer concrete (PC) manufactured with recycled foundry waste in substitution of fresh one. The recycled foundry sand is contaminated with polymer resin from th
Materials Research. Publicado em: 26/08/2011
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17. Análise do uso do pó de exaustão proveniente do sistema de regeneração de areia de macharia em concreto convencional / Analysis of the Use of powder exhaust from the of system sand core making regeneration in conventional concrete
Um dos maiores problemas das indústrias de fundição é a geração de resíduos sólidos, que têm alto impacto ambiental. No processo de fundição, o uso de ligantes e aditivos limita a reutilização de areia, por este motivo este tipo de indústria descarta o referido resíduo em aterros controlados. O objeto deste trabalho é o resíduo pó de exaust
Publicado em: 2011
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18. Estudo comparativo de estrutura/propriedades da liga A1-Si5-Cu3-Mg nos estados fundido e tixoconformado, para utilização em componentes de motores / Comparative study of structure-properties from A1-Si5-Cu3-Mg alloy by casting and thixoforged, for use in engine components
The goal of this work was the comparative study between the Al-Si5-Cu3-Mg alloy obtained by die casting and thixoforging, based on a commercial accessories bracket used in diesel engines. The die casting commercial part was characterized in terms of structure and mechanical properties, and the final sample obtained by thixoforging was characterized in the sa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2010
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19. Fracture mechanics of polymer mortar made with recycled raw materials
The aim of this work is to show that industrial residues could be used in construction applications so that production costs as well as environmental protection can be improved. The fracture properties of polymer mortar manufactured with recycled materials are investigated to evaluate the materials behaviour to crack propagation. The residues used in this wo
Materials Research. Publicado em: 2010-12
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20. Reciclaje de escoria granulada de fundición (EGF) como sustitución de parte del cemento en hormigón = the recycling of foundry granulated slag (FGS) as a partial substitute of cement in concrete / The recycling of foundry granulated slag (FGS) as a partial substitute of cement in concrete
El reciclaje de residuos sólidos industriales se ha vuelto una práctica indispensable en la preservación de los recursos naturales, en la minimización de los costos y en la reducción del impacto ambiental. La utilización de materiales alternativos en la industria de la construcción civil es una práctica económicamente atractiva y ambientalmente corr
Publicado em: 2010
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21. Mechanical characterization using optical fiber sensors of polyester polymer concrete made with recycled aggregates
The sustainable management of solid wastes encourages metallurgic and metal-mechanic industries to look for safety applications for their wastes, thereby attenuating the environmental impact or lowering the costs. The study herein proposes strain monitoring the recycling of foundry sand with organic pollutants, as inert, in the manufacturing process of polym
Materials Research. Publicado em: 2009-09
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22. Reciclaje de escoria granulada de fundición (EGF) como sustitución de parte del cemento en hormigón
The recycling of industrial solid wastes has become an indispensable practice to the natural resource preservation, in the cost and environmental impact reduction. The utilization of alternative materials in the civil construction industry is attractive and correct way in terms of economy and environment. As result of that, the slag recycling as raw material
Matéria (Rio de Janeiro). Publicado em: 07/04/2009
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23. Determinação da concentração de elementos químicos potencialmente tóxicos em aerossóis presentes no interior de uma pequena indústria de fundição de metais, utilizando amostrador temporal e a técnica de fluorescência de raios X / Toxic inorganic elements content in suspended particulate matter inside a small foundry plant by streaker sampler and energy dispersive X-ray fluorescence technique
The aim of this work was to evaluate the chemical concentration of some potentially toxic inorganic chemical elements and the time profiles in fine (PM2.5, particles up to 2.5 m) and coarse (PM2.5-10, particles from 2.5 to 10 m) suspended particulate matter (SPM) inside a small foundry plant - bronze, iron and aluminium -, in which at high concentrations tur
Publicado em: 2009
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24. Sistemática para implantação de controle operacional para gestão ambiental em setor de beneficiamento de areia em industria de fundição
The issues regarding the protection of the environment are in evidence nowadays. There is a very broad legal framework in the sense of creating both preventive and punitive measures. This way, the industrial companies are the main focus of social observation. There are also normative and market incentives in the sense of creating conditions to fulfill the en
Publicado em: 2009