{"id":19323,"date":"2022-09-14T02:05:31","date_gmt":"2022-09-14T02:05:31","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=19323"},"modified":"2022-09-14T02:17:16","modified_gmt":"2022-09-14T02:17:16","slug":"deep-bed-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/deep-bed-filters\/","title":{"rendered":"filtros de lecho profundo"},"content":{"rendered":"

\u201cfiltros de lecho profundo<\/a>\u201d<\/p>\n

\"filtros
filtros de lecho profundo<\/figcaption><\/figure>\n

Otro par\u00e1metro que mide el rendimiento de la espuma es su porosidad, que es la relaci\u00f3n entre el volumen de las celdas abiertas de la espuma y el volumen total de la misma, y que suele expresarse en porcentaje. La experiencia demuestra que la porosidad de una misma espuma con diferentes valores de PPI es muy similar. El m\u00e9todo de c\u00e1lculo de la porosidad es el siguiente.<\/p>\n

P = (A - B) \/ A \u00d7 100%<\/p>\n

P-Porosidad<\/p>\n

Peso de la espuma A-Foam sin celdas abiertas<\/p>\n

Peso de B-Foam tras abrir el envase<\/p>\n

\"\"<\/p>\n

Figura 1: Diagrama esquem\u00e1tico de las especificaciones de la espuma<\/p>\n

\"\"<\/p>\n

Figura 2: Diagrama esquem\u00e1tico del m\u00e9todo del flujo de aire<\/p>\n

Tabla 1: Ejemplos de poros de diferentes tama\u00f1os en una espuma de 17\u201d<\/p>\n

\"\"<\/p>\n

Adem\u00e1s de los problemas mencionados anteriormente, las espumas de fabricaci\u00f3n nacional tambi\u00e9n presentan poros de diferentes tama\u00f1os y formas irregulares. Por lo tanto, cuando se corta la misma pieza de espuma en diferentes direcciones, la superficie mostrar\u00e1 diferentes valores de \u201cPPI\u201d, y la misma pieza de espuma presentar\u00e1 diferentes tama\u00f1os de poros en sus distintas superficies. En la actualidad, no existe en China ning\u00fan instrumento para medir la permeabilidad al aire de la espuma. Las especificaciones de la espuma siguen bas\u00e1ndose en el m\u00e9todo de medici\u00f3n tradicional. Las especificaciones de la espuma facilitadas por el fabricante solo pueden utilizarse a modo de referencia. unidad de desgasificaci\u00f3n<\/a><\/p>\n

1.2 Las propiedades mec\u00e1nicas y la calidad de la superficie de la placa filtrante cer\u00e1mica de lodo guardan una relaci\u00f3n directa con el lodo. Los requisitos generales que debe cumplir el lodo para la fabricaci\u00f3n de la filtro cer\u00e1mico poroso<\/a>: (1) Debe tener una viscosidad adecuada; si la viscosidad es demasiado baja y la cantidad de lodo absorbida por la espuma es insuficiente, la resistencia de la placa filtrante disminuir\u00e1, al igual que su densidad; por el contrario, si la viscosidad es demasiado alta, aunque se mejore la resistencia, se producir\u00e1n demasiados poros muertos e incluso podr\u00edan desprenderse residuos de la superficie. Si es demasiado alta o demasiado baja, debe ajustarse a tiempo. (2) El lodo debe tener cierta fluidez para garantizar que se pueda introducir y extraer f\u00e1cilmente cuando se impregna la espuma. (3) Las principales materias primas que componen la pasta deben tener un cierto grado de hidrofilia para garantizar que la pasta forme una suspensi\u00f3n uniforme. Si la hidrofilia es deficiente, los s\u00f3lidos de la pasta se precipitar\u00e1n f\u00e1cilmente y permanecer\u00e1n en la espuma durante el proceso de inmersi\u00f3n, lo que provocar\u00e1 poros muertos y una mayor fragilidad de la placa filtrante. Las especificaciones de los ingredientes y las materias primas influyen de manera decisiva en el rendimiento de la pasta. Incluso si una misma materia prima presenta especificaciones ligeramente diferentes, la resistencia a la deformaci\u00f3n, la resistencia a la compresi\u00f3n y la fragilidad superficial de los productos acabados ser\u00e1n muy distintas.<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

“deep bed filters” Another measure of foam performance is the porosity of the foam, which is the ratio of the volume of the open cells…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13243],"class_list":["post-19323","post","type-post","status-publish","format-standard","hentry","category-blog","tag-deep-bed-filters"],"yoast_head":"\ndeep bed filters, degassing unit, porous ceramic filter<\/title>\n<meta name=\"description\" content=\"deep bed filters, In addition to the problems mentioned above, domestic foams also have holes of different sizes and irregular shapes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/es\/deep-bed-filters\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" 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