Soluciones para el volado desigual de granalladoras de placas de acero


release time:

2026-07-31

Muchos fabricantes de estructuras de acero frecuentemente encuentran granallado

Muchos fabricantes de estructuras de acero frecuentemente encuentran granallado desigual en las superficies de las placas cuando operan con granallas de tipo pasante.Granalladoras de placas de acero, lo que resulta en una eliminación local incompleta del óxido, diferencias de color claro y oscuro y profundidades inconsistentes del patrón de anclaje. Esto no sólo compromete la calidad de la superficie de las placas de acero, sino que también conduce a una mala adhesión de la pintura, al desprendimiento del recubrimiento y a un aumento de las tasas de retrabajo en procesos de pintura posteriores. De hecho, la voladura desigual no es una falla compleja del equipo; se puede resolver rápidamente una vez que se identifican las causas fundamentales.


La causa más común de granallado desigual enGranalladoras de placas de aceroson los parámetros de la rueda de chorro desalineados. Las jaulas de control desplazadas y las palas del impulsor desgastadas de manera desigual cambiarán el ángulo de voladura de la granalla de acero y crearán áreas de cobertura inconsistentes, dejando regiones parciales de la placa de acero sin tratar con abrasivos. Durante la producción diaria, calibre periódicamente los ángulos de las turbinas y reemplace las cuchillas desgastadas rápidamente para garantizar que los rangos de voladura de todas las turbinas se superpongan uniformemente sin zonas ciegas sin tratar.


En segundo lugar, los problemas relacionados con la calidad y la circulación de las granallas de acero también provocan una intensidad de voladura desigual. Si la granalla de acero se mezcla con un exceso de granalla rota y polvo, o el volumen de suministro de abrasivo es insuficiente, la fuerza del impacto variará mucho. El mal rendimiento de separación del separador y la malla obstruida permiten que los contaminantes circulen continuamente. Se recomienda filtrar los abrasivos con regularidad y complementar con perdigones de acero nuevos para mantener un tamaño de grano uniforme y una pureza calificada de los perdigones.


Finalmente, los problemas que surgen del transporte de piezas de trabajo y la puesta en servicio del equipo también contribuyen a una voladura desigual. Una velocidad de transporte de placas de acero excesivamente rápida, una desviación del transportador de rodillos y una colocación sesgada de las placas dan como resultado una granallado insuficiente en un lado. Ajuste la velocidad de transporte razonablemente de acuerdo con el espesor de la placa y el grado de óxido para garantizar que las placas de acero pasen a través de la zona de granallado a una velocidad uniforme y constante. La inspección y resolución de problemas oportunas de los puntos anteriores pueden eliminar por completo los defectos de voladura desiguales deGranalladoras de placas de acero, estabilizar la calidad del pretratamiento de placas y reducir los costos de retrabajo de producción.



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