{"id":7367,"date":"2021-01-06T08:35:46","date_gmt":"2021-01-06T08:35:46","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7367"},"modified":"2021-01-06T08:35:46","modified_gmt":"2021-01-06T08:35:46","slug":"molten-metal-filter-unit","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/molten-metal-filter-unit\/","title":{"rendered":"Unit\u00e9 de filtration du m\u00e9tal en fusion"},"content":{"rendered":"<p>L'unit\u00e9 de filtration en ligne pour m\u00e9tal en fusion est \u00e9quip\u00e9e d'un filtre en mousse c\u00e9ramique poreuse install\u00e9 horizontalement dans le caisson de filtration. Le caisson de filtration est muni d'une entr\u00e9e et d'une sortie pour le m\u00e9tal en fusion. Lors du fonctionnement de l'appareil, le m\u00e9tal est introduit par l'entr\u00e9e jusqu'\u00e0 recouvrir enti\u00e8rement le filtre, puis la sortie est ferm\u00e9e, ce qui place le caisson sous vide, de sorte que le m\u00e9tal est pouss\u00e9 vers l'aval \u00e0 travers le filtre. Ensuite, une fois que l'\u00e9coulement du m\u00e9tal est amorc\u00e9, un vide est cr\u00e9\u00e9 et la sortie est ouverte afin que le m\u00e9tal puisse s'\u00e9couler \u00e0 travers le filtre sous l'effet de la gravit\u00e9. Le vide sert donc uniquement \u00e0 amorcer l'\u00e9coulement du m\u00e9tal \u00e0 travers le filtre.<\/p>\n<p>L'unit\u00e9 de filtration en ligne pour m\u00e9tal en fusion comprend un bo\u00eetier m\u00e9tallique ou un rev\u00eatement interne thermo-isolant constitu\u00e9 de mat\u00e9riaux isolants et r\u00e9fractaires r\u00e9sistants \u00e0 la chaleur. Un couvercle amovible est pr\u00e9vu sur le dessus du r\u00e9cipient afin de maintenir celui-ci herm\u00e9tique pendant le fonctionnement de l' <a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-for-foundry\/\">filtre en mousse c\u00e9ramique<\/a> (CFF). Le r\u00e9servoir est muni d'une entr\u00e9e (la chambre d'entr\u00e9e doit \u00eatre aussi petite que possible) et d'une chambre de sortie sur laquelle est install\u00e9 un filtre CFF.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7346\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1.jpg\" alt=\"Utilisation d&#039;un filtre en mousse c\u00e9ramique\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>L'utilisation de filtres CFF entra\u00eene des co\u00fbts suppl\u00e9mentaires. Ces co\u00fbts sont en partie li\u00e9s au filtre lui-m\u00eame, qui doit g\u00e9n\u00e9ralement \u00eatre remplac\u00e9 apr\u00e8s chaque op\u00e9ration de coul\u00e9e. Le chauffage du filtre CFF et du caisson de filtration engendre \u00e9galement des co\u00fbts.<\/p>\n<p>Pour les filtres \u00e0 pores fins (&gt; 50 PPI (pores par pouce)), l'activation de l'ensemble du filtre lors de la mise en service et son fonctionnement optimal peuvent \u00e9galement poser probl\u00e8me. La mise en service de l'ensemble du filtre est g\u00e9n\u00e9ralement li\u00e9e \u00e0 un pr\u00e9chauffage correct, mais peut \u00e9galement d\u00e9pendre de l'obtention d'une pression suffisamment \u00e9lev\u00e9e \u00e0 travers la partie initiale du filtre.<\/p>\n<p>Avant toute op\u00e9ration de filtration des m\u00e9taux, il est tr\u00e8s important de pr\u00e9chauffer le filtre CFF et le r\u00e9cipient de filtration. Cela peut \u00eatre r\u00e9alis\u00e9 \u00e0 l'aide d'un syst\u00e8me de pr\u00e9chauffage via l'orifice d'entr\u00e9e ou de sortie, ou encore en effectuant un pr\u00e9chauffage partiel dans le couvercle du r\u00e9cipient de filtration.<\/p>","protected":false},"excerpt":{"rendered":"<p>The online molten metal filter unit has a porous ceramic foam filter installed horizontally in the filter box. The filter box is provided with an&hellip;<\/p>","protected":false},"author":1,"featured_media":7368,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Molten Metal Filter Unit -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The online molten metal filter unit has a porous ceramic foam filter installed horizontally in filter box. 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