{"id":6274,"date":"2020-11-06T07:02:38","date_gmt":"2020-11-06T07:02:38","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6274"},"modified":"2020-11-06T07:02:38","modified_gmt":"2020-11-06T07:02:38","slug":"trough-type-distributor","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/trough-type-distributor\/","title":{"rendered":"Distributeur de type auge"},"content":{"rendered":"<p>Le syst\u00e8me de coul\u00e9e \u00e0 t\u00eate chaude \u00e0 niveau uniforme utilise un circuit d'alimentation unifi\u00e9 et un distributeur de type auge pour relier plusieurs moules \u00e0 t\u00eate chaude. Le niveau du m\u00e9tal en fusion dans chaque moule de l'ensemble de plaques de coul\u00e9e est ainsi uniformis\u00e9, car l'aluminium en fusion filtr\u00e9 se trouve au m\u00eame niveau dans l'ensemble des plaques de coul\u00e9e. L'aluminium en fusion s'\u00e9coule sous le film d'oxyde d'aluminium form\u00e9 initialement, ce qui emp\u00eache toute pollution secondaire et l'oxydation du m\u00e9tal.<\/p>\n<p>Par ailleurs, afin d'exploiter pleinement le plan horizontal, le cristalliseur peut \u00eatre con\u00e7u sous la forme d'un cristalliseur court \u00e0 disposition dense, permettant ainsi la coul\u00e9e \u00e0 tiges multiples.<\/p>\n<p>En raison de la grande quantit\u00e9 d\u2019aluminium fondu, la dissipation thermique est moindre tout au long du processus, ce qui permet de r\u00e9duire la temp\u00e9rature de coul\u00e9e. Cela se traduit par un sous-refroidissement \u00e9lev\u00e9 des cristaux, un taux de nucl\u00e9ation spontan\u00e9e \u00e9lev\u00e9 et un affinage du grain cristallin. Combin\u00e9 aux caract\u00e9ristiques intrins\u00e8ques du moule court, la hauteur de cristallisation effective de l\u2019aluminium fondu dans le moule est inf\u00e9rieure \u00e0 celle d\u2019une coul\u00e9e \u00e0 t\u00eate chaude classique ; la profondeur de la cavit\u00e9 liquide est moindre, la couche de s\u00e9gr\u00e9gation de la barre coul\u00e9e est plus fine, les grains cristallins sont plus uniformes et l\u2019aspect est plus lisse.<\/p>\n<p>Les distributeurs de type auge sont con\u00e7us selon un principe d'assemblage monobloc : la plate-forme de coul\u00e9e et la base du d\u00e9marreur sont positionn\u00e9es et assembl\u00e9es au pr\u00e9alable, puis mont\u00e9es sur le ch\u00e2ssis de la machine de coul\u00e9e et le m\u00e9canisme de basculement, et utilis\u00e9es avec un \u00e9l\u00e9vateur \u00e0 c\u00e2ble m\u00e9tallique ou \u00e0 colonne de guidage hydraulique.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6275\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor.jpg\" alt=\"Distributeur de type auge\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><strong>Avantages des distributeurs de type auge<\/strong><\/p>\n<ul>\n<li>L'orifice d'\u00e9coulement de la plaque de s\u00e9paration sup\u00e9rieure de la matrice pr\u00e9sente une forme trap\u00e9zo\u00efdale, ce qui permet de r\u00e9duire le ph\u00e9nom\u00e8ne d'accumulation d'aluminium pendant le processus de coul\u00e9e, prolongeant ainsi la dur\u00e9e de vie de la plaque de s\u00e9paration.<\/li>\n<li>La plaque de matrice sup\u00e9rieure int\u00e8gre un tube de guidage du flux et une plaque d'adaptation afin d'\u00e9viter le ph\u00e9nom\u00e8ne d'aluminisation et le d\u00e9formage de la surface de la tige d'aluminium, tout en r\u00e9duisant le co\u00fbt des pi\u00e8ces d'usure.<\/li>\n<li>Dot\u00e9 d'un syst\u00e8me de refroidissement par circulation d'eau uniforme en interne, le <a href=\"http:\/\/www.alalloycasting.com\/fr\/distributing-launder\/\">tuyau de distribution<\/a> et principal <a href=\"http:\/\/www.alalloycasting.com\/fr\/troughs-and-launders\/\">auge<\/a> Ils offrent une bonne r\u00e9tention de la chaleur, les variations de niveau de liquide sont faibles pendant le processus de coul\u00e9e, et ils ne favorisent pas l'entra\u00eenement de scories.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>The same level hot top casting system uses a unified flow supply and trough-type distributor to connect multiple hot top molds. Make the metal liquid&hellip;<\/p>","protected":false},"author":1,"featured_media":6276,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-6274","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trough-Type Distributor for Hot Top Casting System<\/title>\n<meta name=\"description\" content=\"Trough-Type Distributor makes the metal liquid level in each mold in the whole set of casting plate to be at the same level.\" \/>\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\/trough-type-distributor\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" 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