{"id":3037,"date":"2020-07-25T08:26:39","date_gmt":"2020-07-25T08:26:39","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=3037"},"modified":"2020-10-19T07:17:49","modified_gmt":"2020-10-19T07:17:49","slug":"zirconia-foam-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/zirconia-foam-filter\/","title":{"rendered":"Filtro de espuma de zirc\u00f4nia"},"content":{"rendered":"

O filtro de espuma de zirc\u00f4nia desempenha as seguintes fun\u00e7\u00f5es:<\/strong><\/p>\n

    \n
  1. Purifica\u00e7\u00e3o do metal fundido, removendo componentes met\u00e1licos e n\u00e3o met\u00e1licos;<\/li>\n
  2. Reduzir a quantidade de \u00f3xidos durante a forma\u00e7\u00e3o de um fluxo turbulento;<\/li>\n
  3. Aumentar a fluidez do metal;<\/li>\n
  4. Elimina\u00e7\u00e3o de inclus\u00f5es e defeitos met\u00e1licos;<\/li>\n
  5. Melhoria da qualidade da fundi\u00e7\u00e3o gra\u00e7as ao aprimoramento das propriedades mec\u00e2nicas;<\/li>\n
  6. Reduzir a gera\u00e7\u00e3o de refugo e evitar trabalhos adicionais.<\/li>\n<\/ol>\n

    Todos os filtros cer\u00e2micos de espuma s\u00e3o caracterizados por uma matriz em forma de malha. Os poros, de formato esf\u00e9rico e com o mesmo tamanho e volume, est\u00e3o interligados entre si, formando \u201cjanelas\u201d atrav\u00e9s de suas paredes. Devido \u00e0 sua estrutura com percursos bastante sinuosos, os poros s\u00e3o capazes de permitir a passagem de metais e reter esc\u00f3ria e outros tipos de poluentes. Em \u00faltima an\u00e1lise, essa estrutura espec\u00edfica dos filtros \u00e0 base de PPU demonstra excelente efici\u00eancia na filtragem de metais quando comparada a filtros com estrutura diferente utilizados na ind\u00fastria de fundi\u00e7\u00e3o.<\/p>\n

    \"Filtro<\/p>\n

    Filtro de espuma cer\u00e2mica de zirc\u00f4nia<\/a> \u00c9 resistente a altas temperaturas e absorve livremente metal fundido. Suas caracter\u00edsticas de alta resist\u00eancia permitem o uso desses filtros sem a instala\u00e7\u00e3o de telas met\u00e1licas de reserva. O material b\u00e1sico do filtro de espuma cer\u00e2mica de zirc\u00f4nia \u00e9 o ZrO\u2082. A resist\u00eancia t\u00e9rmica do filtro de zirc\u00f4nia \u00e9 superior a 1.760 \u00b0C, com alta resist\u00eancia e excelente desempenho sob impacto em altas temperaturas.<\/p>\n

    Entre os diversos tipos de cer\u00e2micas de \u00f3xido met\u00e1lico, a zirc\u00f4nia apresenta a melhor estabilidade em altas temperaturas. \u00c9 a mais adequada para revestimentos cer\u00e2micos e produtos refrat\u00e1rios de alta temperatura. A condutividade t\u00e9rmica da zirc\u00f4nia \u00e9 a mais baixa entre os materiais cer\u00e2micos comuns, e o coeficiente de expans\u00e3o t\u00e9rmica \u00e9 relativamente pr\u00f3ximo ao dos materiais met\u00e1licos. Sua estrutura cristalina especial a torna um importante material eletr\u00f4nico. Boas propriedades mec\u00e2nicas e termof\u00edsicas a tornam uma fase de refor\u00e7o, com excelentes propriedades em comp\u00f3sitos de matriz met\u00e1lica. Entre as diversas cer\u00e2micas de \u00f3xido met\u00e1lico, o uso da cer\u00e2mica de zirc\u00f4nia \u00e9 superado apenas pelo da cer\u00e2mica de alumina. A cer\u00e2mica de zirc\u00f4nia pode atingir alta resist\u00eancia e tenacidade por meio do endurecimento por transforma\u00e7\u00e3o de fase.<\/p>","protected":false},"excerpt":{"rendered":"

    Zirconia Foam Filter performs the following functions: Purification of molten metal from metal and non-metal components; Reducing the amount of oxides during the formation of…<\/p>","protected":false},"author":1,"featured_media":5788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,138],"tags":[653,1716],"class_list":["post-3037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","category-seo","tag-ceramic-foam-filter-manufacturer","tag-zirconia-foam-filter"],"yoast_head":"\nZirconia Foam Filter,Ceramic Foam Filter Manufacturer<\/title>\n<meta name=\"description\" content=\"Zirconia foam filter\u00a0is resistant to high temperatures, it can reduce the amount of oxides during the formation of a turbulent flow.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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