Search
Now showing items 1-10 of 54
Avaliação tribológica de compostos de politetrafluoretileno em ensaio de desgaste tipo mancal sobre eixo sem lubrificação
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2015-02-05)
This study examined the polytetrafluoroethylene (PTFE), a polymer widely used in tribological applications, with two types of filling, bronze and graphite, in order to verify the tribological performance and compare with ...
Análise numérica e experimental da região dos filetes de rosca em uniões aparafusadas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2015-02-06)
Many structures and machines are built using bolt and nut joints in different fields like automotive industry, industrial equipment, construction and others. Bolt and nut joints are easier to assemble and disassemble than ...
Influência de parâmetros topográficos no desempenho de aço perlítico em deslizamento lubrificado
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2019-07-03)
Railway transport in Brazil is its second largest means of cargo transport, behind only to road transport, transporting more than 500 million tons per year. The train wheel to rail contact system is very important in the ...
Estudo da variação do atrito cinético em mancais de deslizamento devido à contaminação do fluido lubrificante por biodiesel
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2013-12-04)
During a combustion engine's operation, it’s common that a small portion of the combustion gases surpass the seal provided by the piston rings and get into the crankcase, contaminating the engine oil, in a process named ...
Desempenho tribológico do policloropreno de alta dureza
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Mecânica, 2019-05-16)
The present study proposes a preliminary investigation for a sample of polychloroprene, widely used as a coating on cylinders, sliding on AISI 52100 steel, which presents a composition of mechanical pairs in contact in the ...
Desempenho tribológico do Policloropreno de alta dureza
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Mecânica, 2019-05-16)
The present study proposes a preliminary investigation for a sample of polychloroprene, widely used as a coating on cylinders, sliding on AISI 52100 steel, which presents a composition of mechanical pairs in contact in the ...
Aplicação de redes neurais para a determinação do coeficiente de atrito de filmes plásticos flexíveis
(Universidade Tecnológica Federal do ParanáLondrinaBrasilEngenharia QuímicaUTFPR, 2020-12-02)
Flexible plastic packaging is gradually being used, since it is the most versatile packaging, with various applications, and of great durability. In order to obtain these packages, a whole production strategy is required, ...
Aplicação dos índices de capabilidade no estudo de coeficiente de atrito de embalagens flexíveis
(Universidade Tecnológica Federal do ParanáLondrinaBrasilEngenharia QuímicaUTFPR, 2021-08-10)
In recent years, there has been a considerable increase in the production and sale of flexible packaging due to its low cost, practicality and durability. Therefore, it is necessary that all processes are working correctly ...
Avaliação tribológica de um lubrificante aditivado com nanopartículas de carbono amorfo
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia MecânicaEngenharia Mecânica, 2021-09-17)
This work is focused on analysing the tribological influence of different dispersion
values of amorphous carbon nanoparticles in a epoxidized soy-based oil. Four
mass concentrations of the lubricant were evaluated, with ...
Análise tribológica do comportamento de compósitos poliméricos em ensaio pino sobre disco
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2017-12-08)
The increasing use of polymers as tribological materials in recent years, seeking to replace metals and other contributing materials for the development of new engineering polymers. The objective of this work is to map as ...