Buscar
Itens para a visualização no momento 71-80 of 190
Obtenção e caracterização de artefatos produzidos com resíduos elastoméricos vulcanizados
(2014-05-22)
The aim of this study was to incorporate styrene-butadiene rubber (SBR) industrial scraps into a base formulation of identical composition used in the fabrication process of extruded profiles. Technical and environmental ...
Transporte atômico e reação química em nanoestruturas TiN e TiN/Ti em aço nitretado a plasma
(2014-05-28)
The use of cutting tools in progressively more severe conditions in the metal-mechanics industry and the requirement to increase tool life against friction, wear and high temperature corrosion made of surface treatments ...
Amplificação da dureza de estruturas de multicamadas de filmes finos CrN/Si3N4
(2014-06-23)
Surface engineering has been searching to attend the industrial demand for tools, parts
and other components with larger lifecycles and higher wear resistance, by means of
protective coatings whose mechanical, physical-chemical ...
Nitretação a plasma de zircônia parcialmente estabilizada
(2014-05-23)
High temperature plasma nitriding of yttria-partially stabilized zirconia in atmospheric pressure microwave plasma was investigated. The morphological, mechanical and physico-chemical characteristics of the resulting ...
Avaliação comparativa de desempenho ambiental de duas caixas de carga de semi-reboque bitrem graneleiro: compósito natural versus compósito sintético
(2014-05-19)
This work presents a comparative evaluation of the environmental performance of two materials: a wood panel and a three layers synthetic panel, both used in the production of the load box of semi-trailer for grains ...
Análise de superfícies fresadas por diferentes estratégias em aço AISI H13 endurecido
(2014-05-20)
In the final milling process of free form surfaces, commonly employed in the production of molds and dies, the knowledge of the cutting conditions and a strategy for choosing adequate processing routes in the milling of ...
Obtenção e caracterização de compósitos preparados com poliestireno expandido reciclado e pó de madeira
(2014-05-29)
The present work aims to analyze the mechanical, thermal, dynamicalmechanical thermal properties and morphology of composites based on recycled polystyrene and wood flour. Composites with different types and levels of ...
Obtenção e caracterização de compósitos celulares à base de resíduo de SBR proveniente da indústria calçadista
(2014-05-19)
Rubber compositions of copoly(butadiene-styrene) (SBR) with incorporation of an expanded residue from shoe industry (SBR scraps) were developed aiming later application to obtain cellular composites.n The amounts of the ...
Estudo comparativo e experimental de materiais aplicados a insertos macho de moldes de injeção dentro do conceito de molde híbrido
(2014-05-14)
The application of plastic components has grown significantly in most of industrial segments during last years. This has attracted considerably attention for the injection mould design and manufacturing processes, which ...
Processamento de compósitos de poli (tereftalato de etileno) reciclado reforçado com fibras de vidro
(2014-05-15)
In this work, flake and post-condensed PET composites of different glass fiber contents (0, 20, 30 and 40%) were prepared. Tow kinds of fibers were employed: one fiber having an amino silane-based surface treatment and ...