{"id":6404,"date":"2020-11-13T06:20:24","date_gmt":"2020-11-13T06:20:24","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6404"},"modified":"2020-11-13T06:20:24","modified_gmt":"2020-11-13T06:20:24","slug":"online-aluminum-purification","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/online-aluminum-purification\/","title":{"rendered":"Purification de l'aluminium en ligne"},"content":{"rendered":"<p>Comme nous le savons tous, la purification de l'aluminium fondu se divise g\u00e9n\u00e9ralement en deux cat\u00e9gories : la purification en four et la purification en ligne, selon la chronologie du traitement de purification. L'affinage en four d\u00e9signe le processus par lequel l'alliage d'aluminium fondu est affin\u00e9 dans le four afin d'obtenir un alliage purifi\u00e9. Son principe de fonctionnement est le suivant : une r\u00e9action chimique entre le gaz et les impuret\u00e9s pr\u00e9sentes dans l'alliage d'aluminium fondu permet de s\u00e9parer les impuret\u00e9s de l'alliage, ce qui permet de purifier l'alliage d'aluminium fondu. La purification en ligne de l'aluminium est une m\u00e9thode de purification de l'aluminium fondu au cours du processus de coul\u00e9e de l'alliage. Elle comprend principalement <a href=\"http:\/\/www.alalloycasting.com\/fr\/online-degassing\/\">d\u00e9gazage en ligne<\/a> et la filtration en ligne (telle que le d\u00e9gazage par rotor, tubulaire\/<a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-function\/\">filtre en mousse c\u00e9ramique<\/a>\/filtration en lit profond).<\/p>\n<p>L'obtention d'un bain m\u00e9tallurgique de haute qualit\u00e9 avant sa solidification n\u00e9cessite une bonne coordination entre la purification en four et la purification en ligne. Il convient toutefois de noter que la purification en ligne de l'aluminium fondu est un processus continu. Le temps de s\u00e9jour de l\u2019aluminium fondu dans l\u2019\u00e9quipement de purification est limit\u00e9, ce qui restreint consid\u00e9rablement la marge de man\u0153uvre du processus de contr\u00f4le de la qualit\u00e9 du liquide d\u2019aluminium et rend son efficacit\u00e9 de purification excessivement d\u00e9pendante de l\u2019\u00e9quipement. Parall\u00e8lement, ce processus pr\u00e9sente \u00e9galement un goulot d\u2019\u00e9tranglement li\u00e9 au volume d\u2019aluminium fondu. De plus, la purification en ligne est plus sensible \u00e0 la purification effectu\u00e9e dans le four. Si le degr\u00e9 de purification de l\u2019aluminium fondu dans le four ne r\u00e9pond pas aux exigences du processus en aval, cela aura un impact consid\u00e9rable sur la purification en ligne, r\u00e9duisant consid\u00e9rablement l\u2019efficacit\u00e9 de cette derni\u00e8re et ne permettant donc pas de garantir la qualit\u00e9 m\u00e9tallurgique de la billette lors de la coul\u00e9e suivante. De plus, une purification incompl\u00e8te dans le four r\u00e9duira la capacit\u00e9 de traitement unitaire d\u2019aluminium liquide du dispositif de purification en ligne, et l\u2019efficacit\u00e9 de la purification ne pourra pas \u00eatre garantie.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6406\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/Online-Aluminum-Purification-1.jpg\" alt=\"Purification de l&#039;aluminium en ligne\" width=\"400\" height=\"320\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Online-Aluminum-Purification-1.jpg 400w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Online-Aluminum-Purification-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>De plus, les objets trait\u00e9s dans le cadre de la purification en four et de la purification en ligne pr\u00e9sentent chacun des sp\u00e9cificit\u00e9s propres. En termes de taille des inclusions, la purification en four vise g\u00e9n\u00e9ralement les inclusions de grande taille, dont la taille des particules est sup\u00e9rieure \u00e0 40 \u03bcm, tandis que la purification en ligne se concentre principalement sur l\u2019effet de r\u00e9gulation. La suppression des inclusions particulaires et une purification en four efficace ont un impact tr\u00e8s positif sur la dur\u00e9e de vie et l\u2019efficacit\u00e9 de purification du dispositif de purification en ligne. Par cons\u00e9quent, une purification efficace en four est un processus cl\u00e9 pour la purification de l\u2019aluminium fondu, et elle peut \u00e9galement cr\u00e9er des conditions favorables \u00e0 la purification en ligne qui suit. La purification en ligne constitue un compl\u00e9ment efficace \u00e0 la purification en four, permettant de purifier davantage l\u2019aluminium fondu. Les deux processus s\u2019influencent et se compl\u00e8tent mutuellement.<\/p>","protected":false},"excerpt":{"rendered":"<p>As we all know, aluminum melt purification is generally divided into furnace purification and online purification according to the time sequence of its purification treatment.&hellip;<\/p>","protected":false},"author":1,"featured_media":6405,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6404","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>Online Aluminum Purification in Alloy Casting Process<\/title>\n<meta name=\"description\" content=\"Online aluminum purification is a method of purifying molten aluminum in casting process. 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