{"id":28060,"date":"2023-09-06T06:10:26","date_gmt":"2023-09-06T06:10:26","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?page_id=28060"},"modified":"2023-09-06T06:10:26","modified_gmt":"2023-09-06T06:10:26","slug":"successful-trial-production-of-phosphorus-free-ceramic-foam-filter-online","status":"publish","type":"page","link":"https:\/\/www.alalloycasting.com\/pt\/news\/successful-trial-production-of-phosphorus-free-ceramic-foam-filter-online\/","title":{"rendered":"Produ\u00e7\u00e3o experimental bem-sucedida de filtro de espuma cer\u00e2mica sem f\u00f3sforo em linha"},"content":{"rendered":"<p><strong>Produ\u00e7\u00e3o experimental bem-sucedida de filtro de espuma cer\u00e2mica sem f\u00f3sforo em linha<\/strong><\/p>\n<p>\u00c0 base de alumina <a href=\"http:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filter-pzr\/\">filtro de espuma cer\u00e2mica<\/a> As placas para filtragem e purifica\u00e7\u00e3o de alum\u00ednio fundido dominam o mercado. Elas utilizam fosfato como aglutinante para altas temperaturas, o que permite atender aos requisitos gerais para a purifica\u00e7\u00e3o e filtragem do alum\u00ednio fundido. No entanto, apresentam riscos ocultos de corros\u00e3o e polui\u00e7\u00e3o ambiental. O magn\u00e9sio presente nas ligas de alum\u00ednio com alto teor de magn\u00e9sio reage com o fosfato de alum\u00ednio a temperaturas entre 600 e 800 \u00b0C, destruindo o aglutinante de alta temperatura da placa de filtro cer\u00e2mica e comprometendo sua estrutura. Em casos graves, a placa de filtragem ser\u00e1 danificada. Os fragmentos se desprendem, contaminam o alum\u00ednio l\u00edquido e produzem, ao mesmo tempo, fosfeto de magn\u00e9sio e fosfeto de alum\u00ednio, que sofrer\u00e3o uma rea\u00e7\u00e3o de hidr\u00f3lise quando expostos \u00e0 umidade ou \u00e0 \u00e1gua presente no ar, liberando g\u00e1s fosfina t\u00f3xico e inflam\u00e1vel e poluindo o meio ambiente. Devido ao alto coeficiente de expans\u00e3o t\u00e9rmica e ao grande m\u00f3dulo de elasticidade da alumina, a tens\u00e3o t\u00e9rmica \u00e9 elevada durante o pr\u00e9-aquecimento r\u00e1pido, e h\u00e1 grande propens\u00e3o \u00e0 ocorr\u00eancia de trincas, resultando no \u201ccolapso da placa\u201d durante o uso, o que leva \u00e0 interrup\u00e7\u00e3o da fundi\u00e7\u00e3o ou \u00e0 inclus\u00e3o de esc\u00f3ria no produto.<\/p>\n<p>Tendo em vista a situa\u00e7\u00e3o acima descrita, ap\u00f3s anos de pesquisa, a Adtech desenvolveu com sucesso um novo tipo de placa filtrante de cer\u00e2mica em espuma, resistente \u00e0 corros\u00e3o e ecologicamente correta, que n\u00e3o cont\u00e9m f\u00f3sforo (<a href=\"http:\/\/www.adtechamm.com\/portfolio-tag\/phosphorus-free-ceramic-foam-filter\/\"><strong>Filtro de espuma cer\u00e2mica sem f\u00f3sforo<\/strong><\/a>), utilizando sal de boro como aglutinante para altas temperaturas a fim de evitar a corros\u00e3o dos elementos de magn\u00e9sio na liga e, ao mesmo tempo, adotando placas de filtro anticorrosivas com baixos coeficientes de expans\u00e3o. O agregado evita a eros\u00e3o do alum\u00ednio e do magn\u00e9sio, reduzindo significativamente a tens\u00e3o t\u00e9rmica gerada durante o pr\u00e9-aquecimento r\u00e1pido e apresenta alta resist\u00eancia ao choque t\u00e9rmico. Recentemente, um pequeno teste de produ\u00e7\u00e3o foi conclu\u00eddo com sucesso. O produto apresenta alta resist\u00eancia \u00e0 compress\u00e3o \u00e0 temperatura ambiente (1,2 MPa), alta resist\u00eancia \u00e0 flex\u00e3o \u00e0 temperatura ambiente (0,8 MPa) e boa resist\u00eancia ao choque t\u00e9rmico, o que permite atender \u00e0s necessidades de filtragem e purifica\u00e7\u00e3o de ligas de alum\u00ednio com alto teor de magn\u00e9sio.<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_9184\" aria-describedby=\"caption-attachment-9184\" style=\"width: 270px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-9184\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2023\/09\/466a70bf01bd35a612daaa0b18418b4-270x300.png\" alt=\"produto acabado\" width=\"270\" height=\"300\" \/><figcaption id=\"caption-attachment-9184\" class=\"wp-caption-text\">produto acabado<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>Successful trial production of phosphorus-free ceramic foam filter online Alumina-based ceramic foam filter plates for filtering and purifying molten aluminum occupy the mainstream market. They&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":638,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-28060","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Successful trial production of phosphorus-free ceramic foam filter online<\/title>\n<meta name=\"description\" content=\"Successful trial production of phosphorus-free ceramic foam filter online, Adtech has successfully developed a new type of corrosion-...\" \/>\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\/pt\/news\/successful-trial-production-of-phosphorus-free-ceramic-foam-filter-online\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta 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