Tecnología de fabricación de los componentes fundidos de la bomba centrífuga PN-40 para los vehículos de extinción de incendios

Abstract

La presente investigación muestra la solución al problema existente en el país sobre la necesidad de fabricar los componentes fundidos de las bombas centrifugas PN – 40 empleando el potencial en el territorio holguinero bajo las condiciones actuales en la industria sideromecánica cubana, logrando implementar la tecnología que garantizan: la productividad, eficacia en la tecnología y la producción a escala industrial que satisfaga las necesidades existentes en el país. Se expone en detalles todos los elementos que componen la metodología para el desarrollo de la fundición de los componentes de esta bomba empleando aleaciones adecuadas al trabajo que se realiza y la metodología seguida con el fin de demostrar y comprobar la hipótesis planteada. Se analizan casos reales a través de antecedentes de fabricación y da una valoración socioeconómica con un análisis del costo y la sustitución de importaciones. This work deals with the design of a milling machine to obtain plywood using the breed of bamboo which because of its wide spread in Cuba is one of the few that can be industrially processed: Bambusa Vulgaris Sharades Ex Wenland. This specific species represents a real challenge in technologies conception, due to its extremely variable and complex geometry, in such a way, that although it is abundant in so many other countries, it is used only in craftsmanship and as combustible. Designing a machine capable of milling the curved and twisted splits of Bambusa Vulgaris required the application of methodologies allowing the generic identification of the adequate modules for each step in the process: milling, polishing and pressing and the use of the reconfigurability concept. The milling machine designed to process this bamboo type has like main feature the fact of being reconfigurable, that is to say, to be able to vary its functions, through small changes that are carried out with easiness and speed. The reconfigurability facilitates the design of machines with multiple functions, the reduction of the auxiliary times, of the time of preparation and setting, and the time of maintenance and repairs. The design reconfigurable of the milling machine was based on a reference model for the development of reconfigurables machine tools.