Placas filtrantes de espuma cer\u00e1mica<\/a> suele alcanzar los 90%. El contenido de impurezas en la masa fundida antes del filtrado es elevado, y el de la masa fundida tras el filtrado es relativamente alto, y viceversa. Por lo tanto, hay que tener cuidado con las operaciones previas al filtrado con placas filtrantes de espuma cer\u00e1mica; de lo contrario, se ver\u00e1 afectado el resultado del filtrado.<\/p>\nPara reducir el contenido de impurezas en la masa fundida, es necesario realizar peri\u00f3dicamente operaciones de eliminaci\u00f3n de escoria y limpieza, as\u00ed como retirar los dep\u00f3sitos acumulados en el fondo y las paredes del horno. Antes de filtrar la masa fundida, el aluminio fundido se refina con gas y un agente refinador; a continuaci\u00f3n, se retira la escoria y se deja reposar.<\/p>\n
En la actualidad, el agente refinador se inyecta en el aluminio fundido mediante un equipo especial, y las impurezas y los gases presentes en el aluminio fundido flotan y se hunden gracias a un tratamiento de presi\u00f3n parcial y a cambios f\u00edsico-qu\u00edmicos, con lo que se consigue el efecto de purificaci\u00f3n tras la eliminaci\u00f3n de escorias y el reposo. Algunas fundiciones han potenciado el proceso de desgasificaci\u00f3n continua en l\u00ednea antes de la colada, al tiempo que utilizan el refinado en horno, principalmente mediante la introducci\u00f3n de nitr\u00f3geno de alta energ\u00eda para lograr una mayor desgasificaci\u00f3n y eliminaci\u00f3n de escorias. Tras la desgasificaci\u00f3n, se utiliza un filtro de espuma cer\u00e1mica para filtrar, lo que mejora el efecto de purificaci\u00f3n del aluminio fundido.<\/p>\n
Cuando el metal fundido salga del horno, hay que evitar las corrientes par\u00e1sitas y las salpicaduras que puedan da\u00f1ar la pel\u00edcula de \u00f3xido de la superficie del aluminio fundido. El revestimiento del canal de colada debe estar fabricado con materiales refractarios que no se da\u00f1en f\u00e1cilmente, y debe secarse antes de su uso.<\/p>","protected":false},"excerpt":{"rendered":"
The use of ceramic molten metal filter to remove impurities in the aluminum melt is currently a method widely used by aluminum processing manufacturers. It…<\/p>","protected":false},"author":1,"featured_media":10056,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[8545,12499],"class_list":["post-10055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","tag-ceramic-foam-filter-plates","tag-ceramic-molten-metal-filter"],"yoast_head":"\n
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