2011
DOI: 10.1590/s0366-69132011000200008
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Modelo matemático aplicado ao processo de extrusão de argilas

Abstract: ResumoAs argilas, quando misturadas com água, adquirem a propriedade chamada plasticidade que tem papel fundamental durante o seu processamento. As técnicas empregadas na caracterização da plasticidade muitas vezes não revelam resultados quantitativos que permitam sua aplicação em modelos matemáticos do processo de conformação das argilas. Este trabalho teve por objetivo desenvolver um modelo matemático para cálculo da pressão média de extrusão, avaliando a plasticidade através de ensaios de compressão. Em seg… Show more

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“…The plasticity measured from compression tests allows that the results obtained by the mathematical modeling may be applied to describe the behavior of a clay during shaping processes such as extrusion 16 or pressing.…”
Section: Compression Tests Resultsmentioning
confidence: 99%
“…The plasticity measured from compression tests allows that the results obtained by the mathematical modeling may be applied to describe the behavior of a clay during shaping processes such as extrusion 16 or pressing.…”
Section: Compression Tests Resultsmentioning
confidence: 99%
“…Pfefferkorn test was chosen for classification of the raw material plasticity. Clays are then divided into 5 plasticity groups (low, moderate, well, highly and the most plastic) [10]. Bigot and Piltz methods are commonly used for determination of the drying sensitivity in our lab, while Ratzenberg method was occasionally applied.…”
Section: Novel Drying Sensitivity Modelmentioning
confidence: 99%