Construcción de un dispositivo para ensayos de desgaste erosivo
Fecha
2014-07-20
Autores
Espinosa Campos, Carlos Alberto
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Editor
Universidad Central "Marta Abreu" de Las Villas
Resumen
En el trabajo se abordan las particularidades de la erosión como mecanismo de desgaste de materiales, haciendo mención en las vías para contrarrestarlo y los diferentes tipos de ensayos que se realizan para evaluar el desgaste erosivo de acuerdo con las norma ASTM. Se describe las particularidades de la microestructura de las aleaciones frecuentemente usadas para enfrentar el
desgaste por erosión. Se presenta un análisis preliminar para la fabricación de un dispositivo para ensayos de desgaste erosivo con arena seca como abrasivo, basado en las particularidades de la norma ASTM G-76 2004 y las circunstancias específicas del Centro de Investigaciones de Soldadura. Se detalla la fabricación de los componentes esenciales del dispositivo y el ensamble del mismo en las
condiciones del taller de la Empresa de Materiales de la Construcción. Se presenta la técnica operatoria para la realización de ensayos con la máquina construida.
In the work the particularities of the erosive like mechanism of wear of materials are approached, making mention in the roads to counteract it and the different types of rehearsals that are carried out to evaluate the waste agreement erosive with the norm ASTM. It is described the particularities of the microstructure of the alloys frequently used to face the wear for erosion. A preliminary analysis is presented for the production of a device for rehearsals of waste erosive with dry sand as abrasive, based on the particularities of the norm ASTM G-76 2004 and the specific circumstances of the Center of Investigations of Welding. The production of the essential components of the device is detailed and the one assembles of the same one under the conditions of the shop of the Company of Materials of the Construction. The operative technique is presented for the realization of rehearsals with the built machine.
In the work the particularities of the erosive like mechanism of wear of materials are approached, making mention in the roads to counteract it and the different types of rehearsals that are carried out to evaluate the waste agreement erosive with the norm ASTM. It is described the particularities of the microstructure of the alloys frequently used to face the wear for erosion. A preliminary analysis is presented for the production of a device for rehearsals of waste erosive with dry sand as abrasive, based on the particularities of the norm ASTM G-76 2004 and the specific circumstances of the Center of Investigations of Welding. The production of the essential components of the device is detailed and the one assembles of the same one under the conditions of the shop of the Company of Materials of the Construction. The operative technique is presented for the realization of rehearsals with the built machine.
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Palabras clave
Desgaste Erosivo, Dispositivo para Ensayos, Materiales, Normas ASTM