{"id":12444,"date":"2022-01-23T08:01:15","date_gmt":"2022-01-23T08:01:15","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=12444"},"modified":"2022-01-21T08:10:31","modified_gmt":"2022-01-21T08:10:31","slug":"%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b0-%d0%b4%d0%b5%d0%b3%d0%b0%d0%b7%d0%b0%d1%86%d0%b8%d0%b8-%d0%b0%d0%bb%d1%8e%d0%bc%d0%b8%d0%bd%d0%b8%d1%8f","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b0-%d0%b4%d0%b5%d0%b3%d0%b0%d0%b7%d0%b0%d1%86%d0%b8%d0%b8-%d0%b0%d0%bb%d1%8e%d0%bc%d0%b8%d0%bd%d0%b8%d1%8f\/","title":{"rendered":"Syst\u00e8me de d\u00e9gazage de l'aluminium"},"content":{"rendered":"

Le syst\u00e8me de d\u00e9gazage de l'aluminium utilise de l'argon ou de l'azote comme agent de raffinage ; il \u00e9limine l'hydrog\u00e8ne et les impuret\u00e9s de l'aluminium fondu, le rotor est plong\u00e9 dans l'aluminium fondu, injecte le gaz d'affinage dans l'aluminium fondu via un rotor \u00e0 grande vitesse, ce qui entra\u00eene la formation de petites bulles qui se r\u00e9partissent uniform\u00e9ment dans l'aluminium fondu. En raison du contact \u00e0 grande vitesse entre le rotor et l\u2019aluminium liquide, la pression partielle d\u2019hydrog\u00e8ne dans les bulles \u00e9tant nulle, tandis que la pression partielle d\u2019hydrog\u00e8ne dans l\u2019aluminium fondu est \u00e9lev\u00e9e, l\u2019hydrog\u00e8ne de l\u2019aluminium liquide se diffuse progressivement dans la bulle, tandis que l\u2019aluminium liquide, ainsi que les impuret\u00e9s m\u00e9talliques et non m\u00e9talliques, sont absorb\u00e9s \u00e0 la surface des bulles. Les bulles contenant des impuret\u00e9s remontent \u00e0 la surface, \u00e9liminant ainsi l'hydrog\u00e8ne et les impuret\u00e9s de l'aluminium liquide.<\/p>\n

Rotor du syst\u00e8me d\u00e9gazage de l'aluminium<\/a>, entra\u00een\u00e9 par un moteur, descend dans l'aluminium liquide et y tourne ; parall\u00e8lement, de l'azote de haute puret\u00e9 (ou de l'argon) et un agent d'affinage y sont inject\u00e9s, apr\u00e8s quoi il peut assurer les fonctions de d\u00e9gazage, d'\u00e9limination des scories et d'affinage.<\/p>\n

En effet, la masse fondue d'aluminium et d'alliages d'aluminium contient une grande quantit\u00e9 d'hydrog\u00e8ne ainsi que des impuret\u00e9s m\u00e9talliques et non m\u00e9talliques. Si ces impuret\u00e9s nuisibles ne peuvent pas \u00eatre \u00e9limin\u00e9es avant la coul\u00e9e, cela entra\u00eenera la formation de bulles, l'inclusion de scories, un retrait et d'autres d\u00e9fauts de coul\u00e9e \u00e0 la surface et \u00e0 l'int\u00e9rieur des pi\u00e8ces moul\u00e9es, qui auront un impact significatif sur les caract\u00e9ristiques physiques, chimiques et m\u00e9caniques des pi\u00e8ces moul\u00e9es ainsi que sur leurs propri\u00e9t\u00e9s d'usinage.<\/p>\n

\"Syst\u00e8me<\/p>\n

Caract\u00e9ristiques du syst\u00e8me de d\u00e9gazage de l'aluminium<\/strong><\/p>\n

1. Une grande efficacit\u00e9 de d\u00e9gazage, qui r\u00e9duit consid\u00e9rablement les \u00e9missions de gaz de fermentation responsables de la formation de bulles, d'inclusions de scories et du retrait. Am\u00e9liorer le rendement de production ;
\n2. Respect de l'environnement, absence de pollution, utilisation d'argon ou d'azote comme milieu de raffinage ; peut \u00eatre associ\u00e9 \u00e0 un flux de raffinage pour un meilleur r\u00e9sultat ;
\nR\u00e9duire les co\u00fbts de transformation et de main-d'\u0153uvre ;
\n3. Absence de corrosion des fours \u00e0 creuset et des godets de transbordement ;
\n4. R\u00e9duire au minimum la pollution secondaire au cours du traitement ;
\n5. L'arbre principal de la machine est \u00e9quip\u00e9 d'un roulement r\u00e9sistant aux hautes temp\u00e9ratures et d'un moteur dot\u00e9 d'un syst\u00e8me de refroidissement par air, ce qui permet de r\u00e9duire la temp\u00e9rature de fonctionnement du moteur et de prolonger sa dur\u00e9e de vie.
\n6. Installez un bouton d'arr\u00eat d'urgence : utilisation simple et s\u00fbre, construction robuste, entretien r\u00e9duit.
\n7. La vitesse de rotation du rotor peut \u00eatre r\u00e9gl\u00e9e en temps r\u00e9el \u00e0 l'aide d'un variateur de fr\u00e9quence, ce qui est pratique pour une utilisation dans diverses situations de d\u00e9gazage et de purification.<\/p>","protected":false},"excerpt":{"rendered":"

\u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u0438 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0430\u0440\u0433\u043e\u043d \u0438\u043b\u0438 \u0430\u0437\u043e\u0442 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0440\u0430\u0444\u0438\u043d\u0438\u0440\u0443\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b, \u0443\u0434\u0430\u043b\u044f\u0435\u0442 \u0432\u043e\u0434\u043e\u0440\u043e\u0434, \u043f\u0440\u0438\u043c\u0435\u0441\u0438 \u0438\u0437 \u043c\u043e\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u044f, \u0440\u043e\u0442\u043e\u0440 \u043f\u043e\u0433\u0440\u0443\u0436\u0430\u0435\u0442\u0441\u044f \u0432 \u0440\u0430\u0441\u043f\u043b\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u0439, \u0432\u0432\u043e\u0434\u0438\u0442 \u0440\u0430\u0444\u0438\u043d\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0433\u0430\u0437…<\/p>","protected":false},"author":1,"featured_media":12445,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13214,13213],"class_list":["post-12444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-13214","tag-13213"],"yoast_head":"\n\u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u0438 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u044f, \u0420\u043e\u0442\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u044f \u0441 \u0440\u043e\u0442\u043e\u0440\u043e\u043c<\/title>\n<meta name=\"description\" content=\"\u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0434\u0435\u0433\u0430\u0437\u0430\u0446\u0438\u0438 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u044f 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