{"id":4914,"date":"2020-09-18T08:48:05","date_gmt":"2020-09-18T08:48:05","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4914"},"modified":"2020-09-19T03:22:46","modified_gmt":"2020-09-19T03:22:46","slug":"20-ppi-ceramic-foam","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/20-ppi-ceramic-foam\/","title":{"rendered":"Espuma cer\u00e1mica de 20 PPI"},"content":{"rendered":"<p>El filtro de espuma cer\u00e1mica de \u201c20 ppi\u201d tiene un efecto de rectificaci\u00f3n muy significativo, lo que permite resolver eficazmente las grietas en la superficie de la pieza fundida. El filtro de espuma cer\u00e1mica elimina eficazmente la mayor parte de las inclusiones del metal fundido, lo que tiende a reducir la variaci\u00f3n de la resistencia a la tracci\u00f3n, el l\u00edmite el\u00e1stico y el alargamiento de la pieza, y evita la fuerte disminuci\u00f3n de las propiedades mec\u00e1nicas provocada por inclusiones gruesas aisladas. Sin embargo, el \u201c20 ppi\u201d <a href=\"http:\/\/www.alalloycasting.com\/es\/ceramic-foam-filter-pal\/\">filtro de espuma cer\u00e1mica<\/a> No puede filtrar las inclusiones relativamente peque\u00f1as, por lo que no puede mejorar el nivel general de resistencia a la tracci\u00f3n y de l\u00edmite el\u00e1stico. Sin embargo, la filtraci\u00f3n de inclusiones gruesas individuales resulta beneficiosa para la mejora de las propiedades mec\u00e1nicas del material.<\/p>\n<p>La estructura de las llantas de aleaci\u00f3n de aluminio determina en gran medida la dificultad del moldeo a baja presi\u00f3n. La causa de las grietas en la superficie de la pieza moldeada es que, durante el proceso de llenado del molde, el flujo turbulento del metal fundido provoca oxidaci\u00f3n secundaria y el atrapamiento de impurezas, lo que da lugar a grietas en la superficie de la pieza y a poros internos.<\/p>\n<p>Con el fin de evitar la oxidaci\u00f3n secundaria y el atrapamiento provocados por el flujo turbulento del metal fundido, as\u00ed como reducir las grietas superficiales y los poros internos en la pieza fundida causados por este fen\u00f3meno, tras probar numerosos tipos, modelos y especificaciones diferentes de filtros, finalmente se seleccion\u00f3 el filtro de espuma cer\u00e1mica \u201c20 ppi\u201d fabricado por AdTech.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4915\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/20PPI-Ceramic-Foam-Filter-1.jpg\" alt=\"Filtro de espuma cer\u00e1mica de 20 PPI\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/20PPI-Ceramic-Foam-Filter-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/20PPI-Ceramic-Foam-Filter-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>20 ppi es un modelo que hace referencia a una placa filtrante de espuma cer\u00e1mica con una uniformidad de poros de entre 17 y 23 orificios en cualquier tramo de 25,4 mm. El filtro de espuma cer\u00e1mica \u201c20 ppi\u201d suele ser m\u00e1s eficaz a la hora de retener inclusiones con un tama\u00f1o de part\u00edcula de 50 \u03bcm o superior. Al pasar una determinada cantidad de metal fundido, se forma una capa de filtro en la superficie de la entrada del filtro, tras lo cual el caudal del metal fundido a trav\u00e9s del filtro se reduce significativamente. Por un lado, debido a la disminuci\u00f3n del di\u00e1metro interior de la entrada, aumenta la probabilidad de interceptar inclusiones de menor tama\u00f1o, as\u00ed como la eficiencia en la eliminaci\u00f3n de dichas inclusiones; por otro lado, debido a la reducci\u00f3n de la secci\u00f3n transversal del canal de flujo del metal fundido, se bloquea la reposici\u00f3n de metal fundido, y es probable que se produzcan defectos de fundici\u00f3n, como el retraso en la alimentaci\u00f3n y la contracci\u00f3n.<\/p>\n<p>Tras utilizar el filtro de espuma cer\u00e1mica, se puede comprobar plenamente su efecto rectificador. El hilo de metal fundido que fluye a trav\u00e9s del filtro de espuma cer\u00e1mica se integra en la corriente principal del flujo laminar. El estado de flujo laminar del metal fundido permite un llenado uniforme, evitando la oxidaci\u00f3n secundaria y el atrapamiento del metal fundido, y resolviendo eficazmente las grietas en la superficie de la pieza fundida.<\/p>","protected":false},"excerpt":{"rendered":"<p>The &#8220;20 ppi&#8221; ceramic foam filter has a very significant rectification effect, which can effectively solve the casting surface cracks. The ceramic foam filter effectively&hellip;<\/p>","protected":false},"author":1,"featured_media":4916,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1722,1778,4699,1454,432,1726,4680,4677,1447,4682,653,426,4696,4678,1721,1731,1456,1727,4676,4681,1605,1781,1453,4697,412,1782,4679,4126,1604,4698,1780,1446,1602,406,4701,4700],"class_list":["post-4914","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo","tag-alumina-ceramic-filter","tag-alumina-ceramic-foam-filters","tag-buy-ceramic-foam-filter","tag-casting-filter","tag-ceramic-filter-foundry","tag-ceramic-filter-manufacturing-process","tag-ceramic-filter-media-for-aluminum","tag-ceramic-foam-filter-board","tag-ceramic-foam-filter-china","tag-ceramic-foam-filter-for-casting","tag-ceramic-foam-filter-manufacturer","tag-ceramic-foam-filter-manufacturing-process","tag-ceramic-foam-filter-size","tag-ceramic-foam-filters-china","tag-ceramic-foam-filters-for-molten-aluminum","tag-ceramic-foam-filters-supplier","tag-ceramic-foundry-filter","tag-ceramic-foundry-filters","tag-filter-media","tag-foam-ceramic-filters-for-casting","tag-foam-furnace-filter","tag-foam-furnace-filters","tag-foundry-filter","tag-honeycomb-ceramic-filters","tag-metal-foam-filter","tag-metal-foam-filters","tag-molten-aluminum-ceramic-foam-filter","tag-molten-metal-filters","tag-open-cell-foam-filter-material","tag-open-cell-foam-filter-materials","tag-porous-ceramic-filters","tag-porous-filter-material","tag-sic-ceramic-foam-filter","tag-silicon-carbide-ceramic-foam-filter","tag-zirconia-ceramic-filter","tag-zirconia-ceramic-foam-filters"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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