Performances fiables lors d'un fonctionnement r\u00e9p\u00e9t\u00e9<\/li>\n<\/ul>\nAu cours de la production, il convient de surveiller r\u00e9guli\u00e8rement l'usure du rotor. Un rotor endommag\u00e9 peut nuire \u00e0 la r\u00e9partition des bulles et r\u00e9duire l'efficacit\u00e9 du d\u00e9gazage.<\/p>\n
Un entretien et un remplacement ad\u00e9quats des composants en graphite permettent d'obtenir des r\u00e9sultats de traitement constants.<\/p>\n
<\/p>\noxydation pr\u00e9liminaire du rotor en graphite<\/em><\/figcaption><\/figure>\nPourquoi faut-il associer le d\u00e9gazage \u00e0 la filtration ?<\/h1>\n Le d\u00e9gazage et la filtration permettent de r\u00e9soudre diff\u00e9rents probl\u00e8mes li\u00e9s au traitement de l'aluminium fondu.<\/p>\n
Le d\u00e9gazage permet d'\u00e9liminer :<\/strong><\/p>\n\nHydrog\u00e8ne dissous<\/li>\n<\/ul>\nLa filtration \u00e9limine :<\/strong><\/p>\n\nInclusions d'oxyde<\/li>\n Particules non m\u00e9talliques<\/li>\n Impuret\u00e9s li\u00e9es aux scories<\/li>\n<\/ul>\nPour obtenir des pi\u00e8ces moul\u00e9es en aluminium de haute qualit\u00e9, on utilise souvent les proc\u00e9d\u00e9s suivants en combinaison :<\/p>\n
Fusion \u2192 D\u00e9gazage \u2192 Filtration \u2192 Coul\u00e9e<\/strong><\/p>\nPar exemple, un syst\u00e8me de d\u00e9gazage rotatif permet de r\u00e9duire la teneur en hydrog\u00e8ne, tandis qu'un filtre en mousse c\u00e9ramique contribue \u00e0 \u00e9liminer les inclusions solides avant que l'aluminium n'atteigne la phase de coul\u00e9e.<\/p>\n
La combinaison de ces deux technologies permet un meilleur contr\u00f4le de la puret\u00e9 de l'aluminium fondu et contribue \u00e0 r\u00e9duire les d\u00e9fauts de coul\u00e9e.<\/p>\n
Comment choisir le bon \u00e9quipement de d\u00e9gazage de l'aluminium ?<\/h1>\n\u00c9quipement de d\u00e9gazage<\/em><\/figcaption><\/figure>\nLe choix d'un \u00e9quipement de d\u00e9gazage de l'aluminium d\u00e9pend des conditions r\u00e9elles de production, notamment :<\/p>\n
\nCapacit\u00e9 du four ou de la poche de coul\u00e9e<\/li>\n Type d'alliage d'aluminium<\/li>\n Volume de traitement requis<\/li>\n Vitesse de coul\u00e9e<\/li>\n Niveau d'hydrog\u00e8ne cible<\/li>\n Int\u00e9gration avec des \u00e9quipements de filtration<\/li>\n<\/ul>\nPour la production d'aluminium \u00e0 haut d\u00e9bit, les unit\u00e9s de d\u00e9gazage rotatives automatis\u00e9es offrent un traitement plus stable et plus reproductible que les m\u00e9thodes manuelles d'injection de gaz.<\/p>\n
AdTech propose des solutions de traitement de l'aluminium en fusion, notamment des \u00e9quipements de d\u00e9gazage rotatifs, des syst\u00e8mes \u00e0 rotor en graphite et des solutions de filtration con\u00e7ues pour les applications de moulage de l'aluminium.<\/p>\n
Un proc\u00e9d\u00e9 fiable de d\u00e9gazage de l'aluminium ne se limite pas \u00e0 l'\u00e9limination de l'hydrog\u00e8ne. Il n\u00e9cessite un choix judicieux des \u00e9quipements, un fonctionnement stable et une int\u00e9gration au processus global de traitement de la masse fondue afin d'obtenir une qualit\u00e9 d'aluminium constante.<\/p>\n
FAQ<\/h2>\n\n1. Pourquoi le d\u00e9gazage est-il n\u00e9cessaire pour l'aluminium fondu ?<\/summary>\nLe d\u00e9gazage est n\u00e9cessaire car l'aluminium fondu peut absorber de l'hydrog\u00e8ne pendant la fusion et le maintien \u00e0 temp\u00e9rature. Un exc\u00e8s d'hydrog\u00e8ne peut entra\u00eener la formation de porosit\u00e9 lors de la solidification, ce qui nuit \u00e0 la qualit\u00e9 de la pi\u00e8ce moul\u00e9e et \u00e0 ses propri\u00e9t\u00e9s m\u00e9caniques. Le d\u00e9gazage de l'aluminium permet d'\u00e9liminer l'hydrog\u00e8ne dissous avant la coul\u00e9e afin d'am\u00e9liorer la puret\u00e9 de la masse fondue et de r\u00e9duire les d\u00e9fauts li\u00e9s \u00e0 l'hydrog\u00e8ne.<\/p>\n<\/details>\n\n2. Comment fonctionne le d\u00e9gazage de l'aluminium ?<\/summary>\nLe d\u00e9gazage de l'aluminium consiste \u00e0 injecter un gaz inerte, g\u00e9n\u00e9ralement de l'azote ou de l'argon, dans l'aluminium en fusion \u00e0 l'aide d'un rotor en graphite en rotation. Le rotor g\u00e9n\u00e8re de fines bulles de gaz qui absorbent l'hydrog\u00e8ne dissous dans la masse fondue. L'hydrog\u00e8ne est ensuite \u00e9limin\u00e9 lorsque les bulles remontent \u00e0 la surface.<\/p>\n<\/details>\n\n3. Quel gaz utilise-t-on pour le d\u00e9gazage de l'aluminium ?<\/summary>\nL'azote et l'argon sont les gaz les plus couramment utilis\u00e9s pour le d\u00e9gazage de l'aluminium. L'azote est largement utilis\u00e9 dans les op\u00e9rations de moulage g\u00e9n\u00e9rales, tandis que l'argon est privil\u00e9gi\u00e9 pour certaines applications n\u00e9cessitant un contr\u00f4le plus rigoureux de la qualit\u00e9 de la masse fondue. Le choix d\u00e9pend du type d'alliage, des exigences de production et de la conception du syst\u00e8me de d\u00e9gazage.<\/p>\n<\/details>\n\n4. Quels d\u00e9fauts le d\u00e9gazage de l'aluminium permet-il d'\u00e9viter ?<\/summary>\nLe d\u00e9gazage de l'aluminium permet principalement d'\u00e9viter les d\u00e9fauts de porosit\u00e9 li\u00e9s \u00e0 l'hydrog\u00e8ne. Une teneur \u00e9lev\u00e9e en hydrog\u00e8ne dans l'aluminium fondu peut entra\u00eener la formation de pores internes, une diminution de la r\u00e9sistance m\u00e9canique, une mauvaise qualit\u00e9 de surface et des probl\u00e8mes lors de proc\u00e9d\u00e9s tels que l'extrusion, le laminage et l'usinage.<\/p>\n<\/details>\n\n5. Quelle est la diff\u00e9rence entre le d\u00e9gazage de l'aluminium et la filtration ?<\/summary>\nLe d\u00e9gazage de l'aluminium permet d'\u00e9liminer l'hydrog\u00e8ne dissous de l'aluminium fondu, tandis que la filtration \u00e9limine les impuret\u00e9s solides telles que les inclusions d'oxyde et les particules non m\u00e9talliques. Dans la fonderie d'aluminium, le d\u00e9gazage et la filtration sur mousse c\u00e9ramique sont souvent associ\u00e9s afin d'am\u00e9liorer la propret\u00e9 globale de la masse fondue et la qualit\u00e9 des pi\u00e8ces moul\u00e9es.<\/p>\n<\/details>\n\n6. Pourquoi utilise-t-on un rotor en graphite pour le d\u00e9gazage de l'aluminium ?<\/summary>\nLes rotors en graphite sont couramment utilis\u00e9s dans les syst\u00e8mes de d\u00e9gazage de l'aluminium, car ils supportent des temp\u00e9ratures \u00e9lev\u00e9es et r\u00e9sistent \u00e0 la corrosion provoqu\u00e9e par l'aluminium fondu. La conception du rotor influe directement sur la taille des bulles, la r\u00e9partition du gaz et l'efficacit\u00e9 de l'\u00e9limination de l'hydrog\u00e8ne au cours du processus de d\u00e9gazage.<\/p>\n<\/details>\n\n7. Quels sont les facteurs qui influencent l'efficacit\u00e9 du d\u00e9gazage de l'aluminium ?<\/summary>\nL'efficacit\u00e9 du d\u00e9gazage de l'aluminium d\u00e9pend de plusieurs facteurs, notamment la conception du rotor, le d\u00e9bit de gaz, la taille des bulles, la dur\u00e9e du traitement, la temp\u00e9rature de la masse fondue et la propret\u00e9 de l'aluminium. Une r\u00e9partition stable des fines bulles et des param\u00e8tres de fonctionnement adapt\u00e9s sont essentiels pour obtenir une \u00e9limination efficace de l'hydrog\u00e8ne.<\/p>\n<\/details>\n\n8. Combien de temps dure le processus de d\u00e9gazage de l'aluminium ?<\/summary>\nLa dur\u00e9e du d\u00e9gazage d\u00e9pend du volume d'aluminium fondu, de la teneur initiale en hydrog\u00e8ne, du type d'alliage, du d\u00e9bit de gaz et de la conception de l'installation. Les usines industrielles d'aluminium optimisent g\u00e9n\u00e9ralement la dur\u00e9e du traitement en fonction de la teneur en hydrog\u00e8ne requise, plut\u00f4t que d'appliquer une dur\u00e9e de traitement fixe.<\/p>\n<\/details>\n\n9. Le d\u00e9gazage de l'aluminium permet-il d'\u00e9liminer les inclusions d'oxyde ?<\/summary>\nNon. Le d\u00e9gazage de l'aluminium n'\u00e9limine pas les inclusions d'oxyde, car il cible l'hydrog\u00e8ne dissous plut\u00f4t que les particules solides. Les inclusions d'oxyde sont g\u00e9n\u00e9ralement \u00e9limin\u00e9es \u00e0 l'aide de syst\u00e8mes de filtration de l'aluminium, tels que des filtres en mousse c\u00e9ramique, install\u00e9s avant la coul\u00e9e.<\/p>\n<\/details>\n\n10. Comment choisir un syst\u00e8me de d\u00e9gazage de l'aluminium ?<\/summary>\nLe choix d'un syst\u00e8me de d\u00e9gazage de l'aluminium d\u00e9pend de la capacit\u00e9 du four, du rendement de coul\u00e9e, des exigences relatives \u00e0 l'alliage, du niveau d'hydrog\u00e8ne vis\u00e9 et du processus de production. Pour la coul\u00e9e continue d'aluminium, un \u00e9quipement de d\u00e9gazage rotatif dot\u00e9 d'un rotor en graphite aux performances fiables offre des r\u00e9sultats de traitement de la masse fondue plus stables et plus homog\u00e8nes.<\/p>\n<\/details>","protected":false},"excerpt":{"rendered":"
Aluminum is degassed by injecting an inert gas, such as nitrogen or argon, into molten aluminum through a rotating graphite rotor. The rotor breaks the…<\/p>","protected":false},"author":1,"featured_media":3971,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[94,4477,4478,4484,1762,659,1485,116,4486,4302,4303,1754,4481,4480,4482,4476,4474,4479,4475,1770,4470,4471,95,1771,4304,4472,4301,834,1980,4485,93,4473,1772,4483,4468,4469],"class_list":["post-3261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo","tag-aluminium-degassing-machine","tag-aluminum-liquid-degassing-machine","tag-aluminum-liquid-purification-equipment","tag-degasser-machine-at-best-price","tag-degassing-aluminum-casting","tag-degassing-box","tag-degassing-equipment","tag-degassing-in-casting","tag-degassing-machine-degassing","tag-degassing-molten-aluminum","tag-degassing-of-aluminium-alloys","tag-degassing-process-in-aluminium","tag-dual-rotor-online-al-melt-degasser","tag-dual-rotors-degassing-machine","tag-dual-rotor-online-degasser","tag-fixed-aluminum-liquid-deslagging-degassing-equipment","tag-fixed-degassing-unit","tag-fixed-degasssing-machine","tag-hoistable-degassing-unit","tag-how-to-degas-aluminum","tag-injection-refining-equipment","tag-launder-degassing-equipment","tag-metal-degassing-systems","tag-methods-of-degassing-in-foundry","tag-mobile-degassing-unit","tag-molten-aluminum-refining-and-degassing-equipment","tag-nitrogen-degassing-aluminum","tag-rotary-degasser","tag-rotary-degassing-aluminum","tag-rotary-degassing-and-fluxing-unit-for-aluminum-alloys","tag-rotary-degassing-machines","tag-rotary-degassing-machines-for-molten-aluminium","tag-rotary-degassing-unit","tag-spinning-rotor-degassing","tag-stationary-rotary-degassing-equipment","tag-suspending-rotary-degassing-equipment"],"yoast_head":"\n
How To Degas Aluminum - Rotary Degassing Aluminum<\/title>\n<meta name=\"description\" content=\"How To Degas Aluminum? Rotary degassing or impeller degassing is mainly used for aluminum melt purification and hydrogen degassing.\" \/>\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\/fr\/how-to-degas-aluminum\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How To Degas Aluminum - Rotary Degassing Aluminum\" \/>\n<meta property=\"og:description\" content=\"How To Degas Aluminum? 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