filtre \u00e0 lit profond<\/a>. Cela consiste g\u00e9n\u00e9ralement \u00e0 filtrer l'aluminium fondu \u00e0 travers un lit de m\u00e9dias c\u00e9ramiques de diff\u00e9rentes tailles. Bien que ces syst\u00e8mes soient g\u00e9n\u00e9ralement tr\u00e8s efficaces (g\u00e9n\u00e9ralement 85% ou plus), leur exploitation peut s'av\u00e9rer co\u00fbteuse. Cela s'explique par l'espace au sol n\u00e9cessaire et la dur\u00e9e de vie limit\u00e9e des m\u00e9dias filtrants. Ceux-ci doivent g\u00e9n\u00e9ralement \u00eatre remplac\u00e9s et \u00e9limin\u00e9s r\u00e9guli\u00e8rement.<\/p>\nQuel que soit le type de filtre utilis\u00e9, il convient de veiller \u00e0 ce que celui-ci ne soit pas affect\u00e9 par des vibrations excessives ou des variations du niveau de m\u00e9tal. Ces \u201c perturbations \u201d entra\u00eeneront la lib\u00e9ration d\u2019inclusions, qui pourraient \u00e0 terme se retrouver dans le produit fini. Un bon contr\u00f4le du processus en aval de l'\u00e9quipement de filtration finale est particuli\u00e8rement important. Si des r\u00e9parations s'av\u00e8rent n\u00e9cessaires, celles-ci doivent s'accompagner de pr\u00e9paratifs de nettoyage minutieux et d'une attention particuli\u00e8re. De plus, les op\u00e9rateurs de la fonderie doivent veiller \u00e0 minimiser les turbulences dans certaines zones, telles que celles autour des sacs de distribution de m\u00e9tal.<\/p>\n
M\u00eame avec la meilleure technologie de filtration disponible, un m\u00e9tal d\u2019alimentation tr\u00e8s sale vous posera des probl\u00e8mes. C\u2019est pourquoi on ne saurait trop insister sur l\u2019importance d\u2019un traitement ad\u00e9quat des m\u00e9taux avant la filtration. Plus le m\u00e9tal entrant dans le filtre est propre, plus on peut utiliser un filtre fin, ce qui permet d\u2019obtenir un m\u00e9tal \u201c encore plus propre \u201d \u00e0 la sortie du filtre.<\/p>\n
Les trois param\u00e8tres cl\u00e9s des m\u00e9dias filtrants en mousse c\u00e9ramique utilis\u00e9s dans les fonderies sont les suivants :<\/strong><\/p>\nSurface filtrante : plus la surface est grande, plus le d\u00e9bit potentiel de m\u00e9tal est important. Toutefois, en raison du risque de dommages, les grandes tuiles peuvent \u00eatre difficiles \u00e0 manipuler.
\nTaille des pores : plus la taille des pores est petite, plus l'efficacit\u00e9 du filtre est \u00e9lev\u00e9e. Cependant, cela risque davantage de dissuader les acteurs \u00e0 moyen terme.
\n\u00c9paisseur : plus le filtre est \u00e9pais, plus l'efficacit\u00e9 de filtration est \u00e9lev\u00e9e. Cependant, il peut \u00eatre plus difficile de le mettre en marche au d\u00e9but.<\/p>","protected":false},"excerpt":{"rendered":"
Foundries Ceramic Foam Filters have simple operation and good short-term results.\u00a0They are usually the most used filtration equipment in many foundries. For some extremely critical…<\/p>","protected":false},"author":1,"featured_media":8960,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-8952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-foundry-ceramic-filters"],"yoast_head":"\n
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