{"id":27498,"date":"2023-08-03T06:38:13","date_gmt":"2023-08-03T06:38:13","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?page_id=27498"},"modified":"2023-08-03T06:38:13","modified_gmt":"2023-08-03T06:38:13","slug":"purification-mechanism-of-foam-ceramic-filter","status":"publish","type":"page","link":"https:\/\/www.alalloycasting.com\/pt\/alumina-ceramic-foam-filter\/purification-mechanism-of-foam-ceramic-filter\/","title":{"rendered":"Mecanismo de purifica\u00e7\u00e3o do filtro cer\u00e2mico de espuma"},"content":{"rendered":"

Mecanismo de purifica\u00e7\u00e3o do filtro cer\u00e2mico de espuma<\/strong><\/p>\n

O filtro cer\u00e2mico de espuma<\/a> pode interceptar eficazmente as inclus\u00f5es no metal l\u00edquido e melhorar a qualidade da fundi\u00e7\u00e3o e o rendimento. O estudo do mecanismo de purifica\u00e7\u00e3o do filtro cer\u00e2mico de espuma pode fornecer uma base te\u00f3rica para o aprimoramento e a aplica\u00e7\u00e3o do filtro.<\/p>\n

Depois que o mecanismo de separa\u00e7\u00e3o por flutua\u00e7\u00e3o coloca o filtro cer\u00e2mico poroso<\/a> No sistema de canais de alimenta\u00e7\u00e3o, a resist\u00eancia ao fluxo do metal aumenta e o metal l\u00edquido enche o sistema, de modo a desempenhar a fun\u00e7\u00e3o de bloqueio de esc\u00f3ria do sistema. Ao mesmo tempo, o fluxo de metal l\u00edquido injetado pelo canal de alimenta\u00e7\u00e3o \u00e9 restringido por um filtro, e o metal l\u00edquido permanece brevemente no canal de alimenta\u00e7\u00e3o. A esc\u00f3ria de baixa densidade flutua e se separa, resultando no mesmo efeito que o sistema de vazamento inferior. Quando o metal fundido continua a ser vazado atrav\u00e9s do filtro de cer\u00e2mica espumosa, por um lado, a esc\u00f3ria de baixa densidade flutua para cima; por outro lado, o v\u00f3rtice \u00e9 efetivamente reduzido ou eliminado.
\nO filtro cer\u00e2mico de espuma com mecanismo de \u201cbolo de filtra\u00e7\u00e3o\u201d possui um canal em zigue-zague capaz de bloquear mecanicamente a esc\u00f3ria com efici\u00eancia. Muitas inclus\u00f5es maiores do que os orif\u00edcios do filtro ficam retidas na entrada do filtro. \u00c0 medida que o n\u00famero de inclus\u00f5es capturadas aumenta, forma-se um \u201cbolo de filtra\u00e7\u00e3o\u201d composto por grandes inclus\u00f5es na superf\u00edcie da extremidade de entrada do filtro. O \u201cbolo de filtra\u00e7\u00e3o\u201d torna o fluxo do fluido mais fino, de modo que inclus\u00f5es menores que o tamanho da malha do filtro tamb\u00e9m sejam parcialmente retidas no \u201cbolo de filtra\u00e7\u00e3o\u201d.<\/p>\n

\"filtro
filtro cer\u00e2mico de espuma<\/figcaption><\/figure>\n

O filtro com mecanismo de adsor\u00e7\u00e3o \u00e9 colocado no canal transversal ou interno da cavidade do molde, e a opera\u00e7\u00e3o de filtragem se enquadra na categoria de filtragem profunda. Quando a primeira corrente de l\u00edquido atinge a superf\u00edcie da extremidade de entrada do filtro, ocorre a adsor\u00e7\u00e3o entre o fluxo de l\u00edquido e a grade de espuma e, ao mesmo tempo, ocorre o fen\u00f4meno de \u201cimpacto\u201d do fluxo de l\u00edquido. O pr\u00f3prio filtro tamb\u00e9m tem a fun\u00e7\u00e3o de bloquear o fluxo. Sob determinada press\u00e3o, algumas part\u00edculas de impurezas s\u00e3o facilmente lubrificadas e absorvidas devido \u00e0 estreita rela\u00e7\u00e3o de \u201ccorrespond\u00eancia coerente\u201d entre as inclus\u00f5es e as grades cer\u00e2micas de espuma s\u00f3lida. Essa adsor\u00e7\u00e3o baseia-se principalmente na adsor\u00e7\u00e3o f\u00edsica de m\u00faltiplas camadas moleculares sem sele\u00e7\u00e3o, com as inclus\u00f5es aderindo camada por camada \u00e0 malha do filtro at\u00e9 que este fique obstru\u00eddo.<\/p>","protected":false},"excerpt":{"rendered":"

Purification mechanism of foam ceramic filter The foam ceramic filter can effectively intercept the inclusions in the liquid metal, and improve the casting quality and…<\/p>","protected":false},"author":1,"featured_media":27505,"parent":237,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-27498","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nPurification mechanism of foam ceramic filter<\/title>\n<meta name=\"description\" content=\"Purification mechanism of foam ceramic filterThe foam ceramic filter can effectively intercept the inclusions in the liquid metal, and improve...\" \/>\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\/alumina-ceramic-foam-filter\/purification-mechanism-of-foam-ceramic-filter\/\" \/>\n<meta property=\"og:locale\" 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