Ensayo de abrasión en tuberias de polipropileno de alta densidad (PAD)
Fecha
2013-07-20
Autores
Morales López, Pablo
González García, Brian
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Editor
Universidad Central "Marta Abreu" de Las Villas
Resumen
El presente trabajo tuvo por objetivo, el estudio de la abrasión en tuberías de PAD, para lo cual se aplicaron los ensayos regidos por la normas ASTM 65 (Rueda de goma y arena seca) y ASTM 132 (Espiga sobre disco abrasivo). Para el desarrollo del trabajo se seleccionó el procedimiento D por ser el más adecuado a este material, se tomaron las muestras necesarias para los ensayos, tanto de un tipo como de otro. Una vez seleccionadas las muestras y llevadas a las medidas que exigen cada tipo de ensayo, según el tipo de porta probeta, estas se limpiaron correctamente, usando para ello los materiales requeridos, posteriormente estas se pesaron en una pesa digital con una precisión de 0.0001g. La etapa final de la investigación se realiza la aplicación del procedimiento de
ensayo, cuyo objetivos fundamentales a desarrollar la estrategia para la validación del método de ensayo, garantizando la confiabilidad de los resultados mediante el empleo de indicadores tales como: el coeficiente de variación, el error estándar, la varianza y coeficiente de desgaste K. En todos los casos el procesamiento de los resultados arrojó confiabilidad de los mismos. Una vez terminados los ensayos se pudo comprobar que el comportamiento del PAD de producción nacional ante la abrasión es similar al PAD estudiado por otros investigadores en otras partes del mundo, siendo K muy similar al obtenido en los estudios realizados en otros laboratorios.
The present had work for objective, the study of the abrasion in pipes of PAD, the one for which the tests governed by her the one were applied standards ASTM 65 (DRY SAND/RUBBER WHEEL APPARATUS) and ASTM 132 (PIN-ON-DISK). For the development of work the D to be this material the best-suiteddest, the necessary signs for the essays took themselves, so much of a type selected the procedure itself like not our own. One time once the signs were selected and once the measures that demand each kind of essay, according to the kind of portal test tube, these were taken to they washed up correctly, using for it the required materials, at a later time these weighed themselves in a digital scale with a precision of 0.0001g. The final stage of investigation accomplishes the application of the procedure of essay, of whom itself objective fundamental developing the strategy for the validation of the method of essay, guaranteeing the intervening reliability of the results the job of indicators I eat such: the coefficient of variation, the standard error, the variance and coefficient of wear K. One time was finished them essays it could be verified that the behavior of the PAD of national production in front of the abrasion is similar to the PAD studied by other investigators in another one you depart from the world, being very similar K to the obtained in the studies accomplished at other laboratories.
The present had work for objective, the study of the abrasion in pipes of PAD, the one for which the tests governed by her the one were applied standards ASTM 65 (DRY SAND/RUBBER WHEEL APPARATUS) and ASTM 132 (PIN-ON-DISK). For the development of work the D to be this material the best-suiteddest, the necessary signs for the essays took themselves, so much of a type selected the procedure itself like not our own. One time once the signs were selected and once the measures that demand each kind of essay, according to the kind of portal test tube, these were taken to they washed up correctly, using for it the required materials, at a later time these weighed themselves in a digital scale with a precision of 0.0001g. The final stage of investigation accomplishes the application of the procedure of essay, of whom itself objective fundamental developing the strategy for the validation of the method of essay, guaranteeing the intervening reliability of the results the job of indicators I eat such: the coefficient of variation, the standard error, the variance and coefficient of wear K. One time was finished them essays it could be verified that the behavior of the PAD of national production in front of the abrasion is similar to the PAD studied by other investigators in another one you depart from the world, being very similar K to the obtained in the studies accomplished at other laboratories.
Descripción
Palabras clave
Abrasión, Tuberias de Polipropileno de Alta Densidad, Normas ASTM 65