Used Lubricant Oil
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. DETERMINAÇÃO DOS PARÂMETROS CINÉTICOS E SIMULAÇÃO COMPUTACIONAL DO PERFLUOROPOLIÉTER (PFPE) EMPREGADO COMO LUBRIFICANTE SINTÉTICO
This work aims to determine the kinetic parameters of the thermal decomposition of a lubricating grease based on perfluoropolyether (PFPE) and the computational simulation of this decomposition. The determination of kinetic parameters of thermal decomposition was done by thermal analysis using thermogravimetry (TG) at different heating rates (β) of 10, 15 a
Quím. Nova. Publicado em: 26/08/2019
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2. Influence of water in the MQL technique in the grinding of steel AISI 4340 using CBN wheels
Abstract Usually, machining employs cooling methods to avoid high temperatures. In most cases, the cutting fluid is applied with high flow and low pressures. This technique consumes a large amount of cutting fluid that causes serious problems in the environment and in the health of the worker. An alternative to the conventional cooling method is the Minimum
REM, Int. Eng. J.. Publicado em: 2018-07
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3. Biodegradation and toxicological evaluation of lubricant oils
The aim of this work was to compare different toxicity levels of lubricant oils. The tests were performed using the earthworm (Eisenia andrei), arugula seeds (Eruca sativa) and lettuce seeds (Lactuca sativa), with three types of contaminants (mineral lubricant oil, synthetic lubricant oil and used lubricant oil) for various biodegradation periods in the soil
Braz. arch. biol. technol.. Publicado em: 2012-12
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4. Simultaneous allergen inactivation and detoxification of castor bean cake by treatment with calcium compounds
Ricinus communis L. is of great economic importance due to the oil extracted from its seeds. Castor oil has been used for pharmaceutical and industrial applications, as a lubricant or coating agent, as a component of plastic products, as a fungicide or in the synthesis of biodiesel fuels. After oil extraction, a castor cake with a large amount of protein is
Braz J Med Biol Res. Publicado em: 2012-11
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5. Enhanced DLC wear performance by the presence of lubricant additives
Lubricant additives play significant role for reducing friction and wear of mechanical elements. The additives presented in 5W30 oil were developed for metal surfaces. However, they have been used in engine pieces covered with DLC coatings because they also offer the potential to reduce friction losses and wear in automotive applications. The friction and we
Materials Research. Publicado em: 15/04/2011
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6. Behavior of surface integrity in cylindrical plunge grinding using different cooling systems
The superficial texture of the material can exert a decisive influence on the application and performance of the machined component. The conventional fluids used in grinding processes are environmental risk and can also be dangerous to the health. The disposal of these toxic fluids is expensive and the contamination in the proximities of the machines can pre
Materials Research. Publicado em: 15/04/2011
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7. Predictive maintenance of a reducer with contaminated oil under an excentrical load through vibration and oil analysis
Among all Predictive Maintenance techniques the oil analysis and vibration analysis are the most important for monitoring some systems. The integration of these techniques has the potential to revolutionize industrial practices and provide a large economic gain for industries. To study the integration of both techniques a bench test was set up and put to wor
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-03
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8. Empirical study regarding the effects of minimum quantity lubricant utilization on performance characteristics in the drilling of Al 7075
Cutting fluids are difficult and expensive to recycle. These drawbacks mentioned can be reduced or eliminated by performing the cutting operations with minimum quantity lubrication or without using any cutting fluid. In this study, the effects of different cutting parameters on performance characteristics are studied empirically during the drilling of Al7075
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-03
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9. Burr produced on the drilling process as a function of tool wear and lubricant-coolant conditions
This work shows the resulting height and shape of the burrs produced by drilling holes with ratio L/D = 3. The tool used in the tests was the solid twist HSS drill coated with TiAlN, with diameter of 10 mm, to drill the microalloyed steel DIN 38MnS6. The height of the burr was studied under different lubricant/coolant systems, namely: dry machining, use of M
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-03
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10. Fitorremediação de solos contaminados com óleos lubrificantes usados / Phytoremediation of soils contaminated with used lubrificant oils
In Brazil, the logistics of collecting used lubricant oil is regulated by the National Petroleum Agency (ANP). However, there is risk of environmental contamination during transport, storage, recycling and final disposal of waste. This study aimed to verify if the capacity for phytoextraction and accumulation of metals in soils contaminated with used lubrica
Publicado em: 2009
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11. Sistema de medição de consumo de oleo lubrificante por nivel em motores de combustão interna / Measurement system for lubricant oil consumption by oil pan level in internal combustion engines
The measurement of lubricant oil consumption in internal combustion engines is known as inaccurate and too time consuming when used the drain-and-weight method, which is still widely used by several auto-parts companies at engine development. During this research, we studied the parameters that have an effect on this kind of measurement and tested the oil co
Publicado em: 2009
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12. Treatment of industry wastewater from a plastic containers (containing originally lubricant oil) recycling industry : biological and physical-chemical process / Tratamento de efluentes de uma industria de reciclagem de embalagens plasticas de oleos lubrificantes : processo biologico e fisico-quimico
In the present work, the treatment of the wastewater originated in a plastic container (containing originally lubricant oil) recycling industry was investigated. The purpose of this work was to study the individual efficiency to treat the industrial effluent, mixture of the plastic container washing process wastewater and sanitary wastewater, by activated sl
Publicado em: 2007