View in EDS PDF Full Text

Diseño y evaluación de un cojinete de deslizamiento para recuperación de equipos en la industria minerometalúrgica.

Saved in:
Bibliographic Details
Title: Diseño y evaluación de un cojinete de deslizamiento para recuperación de equipos en la industria minerometalúrgica.
Alternate Title: Desing and evaluation of a sliding bearing for equipment restoration in metallurgical industry.
Authors: Leyva-De la Cruz, Benigno1, Efraín Guzmán-Romero, Eli1, Fabián SalazarCorrales2;, Marcelo, Luis Laurencio-Alfonso3;, Héctor, Giovanny Quitiaquez-Sarzosa4;, William, Retirado-Mediaceja, Yoalbys1 yretirado@ismm.edu.cu
Source: Minería y Geología. oct-dic2025, Vol. 41 Issue 4, p411-427. 17p.
Subjects: Nickel mining, Hydrodynamic lubrication, Service life, Machinery maintenance & repair, Contact mechanics, Journal bearings, Copper-tin alloys, Metal industry
Abstract (English): The study presents the design, manufacture and evaluation of a plain bearing (bushing) intended for the restoration of critical auxiliary equipment used in the nickel mining and metallurgical operations. Reliability and durability of the component was prioritized through a tribological and metallurgical analysis, focusing on the operation regime characterized by radial load of 374,011 N, rotation speed of 2 800 r/min) and service temperature of 60°C. The worn bronze material originally used (CuAl10Ni) was characterized, and phosphorous tin bronze (CuSn14) was selected as a replacement due to its superior hardness (232 HB), ensuring enhanced wear resistance. The design process included clearance and specific load calculations, applying the Sommerfeld number to confirm operation under an elastohydrodynamic (EHL) lubrication regime with ISO VG 460 oil at 60 °C. Manufacturing was carried out on a 16k20 lathe, achieving the required surface roughness with a relative error of 10%. Technical evaluation indicates that the design guarantees stable EHL lubrication and projects an estimated service life of 1,348,000 hours. This optimized bushing improves the reliability of essential equipment, reducing costly downtime and supporting continuity in key processes of the nickel value chain. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): El estudio abordó el diseño, fabricación y evaluación de un cojinete de deslizamiento (buje) destinado a la restauración de equipos auxiliares críticos utilizados en las tareas de mantenimiento de la industria minero-metalúrgica del níquel. Se priorizó la fiabilidad y durabilidad del componente mediante un análisis tribológico y metalúrgico, enfocándose en el régimen de operación caracterizado por la carga radial (374,011 N), la velocidad de rotación (2 800 r/min) y la temperatura de servicio (60 0C). Tras la caracterización del material de bronce desgastado original (CuAl10Ni), se seleccionó el bronce al estaño fosforoso (CuSn14), verificando su dureza superior (232 HB) para garantizar una mayor resistencia al desgaste. El diseño incluyó cálculos de holgura y carga específica, empleando el número de Sommerfeld para asegurar la operación bajo un régimen de lubricación elastohidrodinámica (EHL) con aceite ISO VG 460 a 60 °C. La fabricación se ejecutó en un torno 16k20, logrando una rugosidad superficial que se ajustó a las especificaciones de diseño con un error relativo del 10%. Los resultados técnicos son prometedores: el diseño garantiza el régimen EHL, proyectando una vida útil estimada de 1 348 000 horas. Este buje optimizado asegura la operatividad de equipos imprescindibles, mitigando costosos tiempos de inactividad en procesos clave de la cadena de valor del níquel. [ABSTRACT FROM AUTHOR]
Copyright of Minería y Geología is the property of Instituto Superior Minero Metalurgico de Moa and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:The study presents the design, manufacture and evaluation of a plain bearing (bushing) intended for the restoration of critical auxiliary equipment used in the nickel mining and metallurgical operations. Reliability and durability of the component was prioritized through a tribological and metallurgical analysis, focusing on the operation regime characterized by radial load of 374,011 N, rotation speed of 2 800 r/min) and service temperature of 60°C. The worn bronze material originally used (CuAl10Ni) was characterized, and phosphorous tin bronze (CuSn14) was selected as a replacement due to its superior hardness (232 HB), ensuring enhanced wear resistance. The design process included clearance and specific load calculations, applying the Sommerfeld number to confirm operation under an elastohydrodynamic (EHL) lubrication regime with ISO VG 460 oil at 60 °C. Manufacturing was carried out on a 16k20 lathe, achieving the required surface roughness with a relative error of 10%. Technical evaluation indicates that the design guarantees stable EHL lubrication and projects an estimated service life of 1,348,000 hours. This optimized bushing improves the reliability of essential equipment, reducing costly downtime and supporting continuity in key processes of the nickel value chain. [ABSTRACT FROM AUTHOR]
ISSN:02585979