{"id":10101,"date":"2021-08-28T06:52:16","date_gmt":"2021-08-28T06:52:16","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10101"},"modified":"2021-08-26T06:55:07","modified_gmt":"2021-08-26T06:55:07","slug":"metal-degassing-device","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/metal-degassing-device\/","title":{"rendered":"Dispositif de d\u00e9gazage des m\u00e9taux"},"content":{"rendered":"

Le dispositif de d\u00e9gazage des m\u00e9taux, sp\u00e9cialement con\u00e7u et fabriqu\u00e9 par AdTech, est utilis\u00e9 dans la cha\u00eene de production de pi\u00e8ces moul\u00e9es. Ce dispositif est \u00e9quip\u00e9 d\u2019un rotor \u00e0 arbre rotatif en graphite qui pulv\u00e9rise un gaz inerte ; il permet un r\u00e9glage en continu de la vitesse et fonctionne normalement. L'arbre en graphite est soulev\u00e9 par un dispositif hydraulique situ\u00e9 \u00e0 l'ext\u00e9rieur du caisson et peut pivoter librement \u00e0 180\u00b0, ce qui facilite son entretien. Le chambre de d\u00e9gazage<\/a> est dot\u00e9 d'orifices d'\u00e9vacuation des scories et d'orifices de vidange adapt\u00e9s.<\/p>\n

Le dispositif de d\u00e9gazage des m\u00e9taux est un syst\u00e8me automatis\u00e9 et respectueux de l'environnement destin\u00e9 au traitement des m\u00e9taux en fusion, qui permet de proc\u00e9der au d\u00e9gazage et \u00e0 l'\u00e9limination des scories des alliages d'aluminium dans le respect de l'environnement.<\/p>\n

La structure en caisson de l'unit\u00e9 de d\u00e9gazage est constitu\u00e9e de t\u00f4les d'acier au carbone. Entre l'enveloppe en acier et la couche active, des produits en fibres de silicate d'aluminium et des panneaux de silicate de calcium sont utilis\u00e9s pour l'isolation composite ; leur conductivit\u00e9 thermique est extr\u00eamement faible, ce qui leur conf\u00e8re une fonction d'isolation et d'amortissement de la dilatation de la couche active. Au cours du processus de coul\u00e9e, la couche active du corps de la cuve est constamment immerg\u00e9e dans de l'aluminium liquide \u00e0 haute temp\u00e9rature ; c'est pourquoi un b\u00e9ton de coul\u00e9e sp\u00e9cial \u00e0 haute teneur en aluminium est utilis\u00e9 pour constituer cette couche. Le corps de la cuve est muni d'une entr\u00e9e et d'une sortie d'aluminium, qui pr\u00e9sentent une bonne fluidit\u00e9.<\/p>\n

L'aluminium fondu s'\u00e9coule dans la cuve de d\u00e9gazage et reste dans le rev\u00eatement r\u00e9fractaire. La cabine est \u00e9quip\u00e9e d\u2019un dispositif de chauffage destin\u00e9 \u00e0 maintenir l\u2019aluminium fondu \u00e0 l\u2019\u00e9tat liquide. Une fois \u00e9ject\u00e9 par le rotor en rotation, le gaz inerte est fragment\u00e9 en d\u2019innombrables petites bulles sous l\u2019effet de la rotation \u00e0 grande vitesse du rotor. Ces petites bulles se diffusent et remontent dans l\u2019aluminium fondu afin d\u2019\u00e9liminer l\u2019hydrog\u00e8ne. Au cours de leur remont\u00e9e, sous l\u2019effet de la tension superficielle, certaines inclusions sont entra\u00een\u00e9es hors de l\u2019aluminium fondu vers la surface du liquide, formant une \u00e9cume qui permet d\u2019\u00e9liminer les inclusions pr\u00e9sentes dans l\u2019aluminium fondu. Parall\u00e8lement, l\u2019effet d\u2019agitation du rotor rend la composition de l\u2019alliage dans l\u2019aluminium fondu plus homog\u00e8ne.<\/p>","protected":false},"excerpt":{"rendered":"

The metal degassing device specially designed and manufactured by AdTech is used in the casting production line. The metal degassing device is equipped with a…<\/p>","protected":false},"author":1,"featured_media":10102,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-10101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-degassing-unit"],"yoast_head":"\nMetal Degassing Device -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The metal degassing device is equipped with a graphite rotating shaft rotor that sprays inert gas, which is stepless speed regulation.\" \/>\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\/metal-degassing-device\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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