{"id":8764,"date":"2021-05-13T09:40:49","date_gmt":"2021-05-13T09:40:49","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8764"},"modified":"2021-05-13T09:40:49","modified_gmt":"2021-05-13T09:40:49","slug":"aluminum-ingots-defects","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-ingots-defects\/","title":{"rendered":"D\u00e9fauts des lingots d'aluminium"},"content":{"rendered":"<p>Il est bien connu dans le domaine de la coul\u00e9e d\u2019aluminium que divers d\u00e9fauts de surface form\u00e9s lors de la coul\u00e9e des lingots, tels que les piq\u00fbres, les plis verticaux, les plaques d\u2019oxyde, etc., peuvent \u00e9voluer en fissures pendant la coul\u00e9e ou lors des op\u00e9rations de transformation ult\u00e9rieures. Par exemple, lors du processus de laminage qui suit, les fissures pr\u00e9sentes dans le lingot ou la brame peuvent se propager, ce qui entra\u00eene notamment des retouches co\u00fbteuses ou la mise au rebut totale des mat\u00e9riaux d\u00e9fectueux. La plupart des lingots font l\u2019objet d\u2019un traitement quelconque. Cependant, aucun traitement ne permet de rem\u00e9dier aux fissures du lingot. Les d\u00e9fauts de surface des lingots d\u2019aluminium constituent toujours un probl\u00e8me dans le domaine des alliages.<\/p>\n<p>Le terme \u00ab transformation \u00bb d\u00e9signe diverses op\u00e9rations bien connues dans le domaine de la m\u00e9tallurgie, parmi lesquelles, pour n'en citer que quelques-unes, le laminage \u00e0 chaud, le laminage \u00e0 froid, l'extrusion, le forgeage, l'\u00e9tirage, le repassage, le traitement thermique, le vieillissement, le formage et l'\u00e9tirement. Lors de la transformation ou du formage des alliages, de l'\u00e9nergie est transmise \u00e0 la pi\u00e8ce, mais celle-ci n'est pas toujours r\u00e9partie de mani\u00e8re homog\u00e8ne.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8771\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/05\/Aluminum-Pinholes.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/05\/Aluminum-Pinholes.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/05\/Aluminum-Pinholes-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Il existe de nombreuses m\u00e9thodes de coul\u00e9e des alliages, telles que la coul\u00e9e \u00e0 froid directe (DC), la coul\u00e9e \u00e9lectromagn\u00e9tique (EMC), la coul\u00e9e \u00e0 froid directe horizontale (HDC), la coul\u00e9e \u00e0 t\u00eate chaude, la coul\u00e9e continue, la coul\u00e9e semi-continue, la coul\u00e9e sous pression, la coul\u00e9e au rouleau et la coul\u00e9e en sable. Chacune de ces m\u00e9thodes de coul\u00e9e pr\u00e9sente ses propres probl\u00e8mes inh\u00e9rents, mais pour chacune d'entre elles, les d\u00e9fauts de surface restent un probl\u00e8me.<\/p>\n<p>Notre entreprise propose <a href=\"http:\/\/www.alalloycasting.com\/fr\/refining-agents\/\">agents de raffinage<\/a>, \u00e9quipements de d\u00e9gazage et de filtration en ligne, <a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filters-for-foundries\/\">filtres en mousse c\u00e9ramique<\/a>, qui permet de rem\u00e9dier aux d\u00e9fauts de surface des lingots d'aluminium destin\u00e9s aux fonderies d'aluminium en r\u00e9duisant la pr\u00e9sence de gaz, d'oxydes et d'autres impuret\u00e9s dans l'aluminium fondu. Nous proposons \u00e9galement des canaux de coul\u00e9e, des embouts et des buses de coul\u00e9e, des c\u00f4nes de vidange, des pi\u00e8ces de coul\u00e9e \u00ab hot top \u00bb et d'autres accessoires destin\u00e9s \u00e0 la coul\u00e9e de l'aluminium, qui contribuent \u00e0 r\u00e9duire la pollution secondaire.<\/p>\n<p>R\u00e9duire au minimum l'oxydation de l'alliage en fusion et les d\u00e9fauts de surface du lingot final permet d'am\u00e9liorer le taux de r\u00e9cup\u00e9ration de l'alliage d'aluminium \u00e0 diff\u00e9rentes \u00e9tapes du processus. Ce taux de r\u00e9cup\u00e9ration accru permet de r\u00e9duire les co\u00fbts de production et d'augmenter le rendement des \u00e9quipements de production. En particulier, une oxydation r\u00e9duite entra\u00eene une diminution des pertes de mati\u00e8re en fusion, c'est-\u00e0-dire les pertes qui surviennent pendant la fusion, le maintien \u00e0 temp\u00e9rature et la coul\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"<p>It is well known in the field of aluminum casting that various surface defects formed during ingot casting, such as pits, vertical wrinkles, oxide plaques,&hellip;<\/p>","protected":false},"author":1,"featured_media":8770,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8764","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>Aluminum Ingots Defects Solver with Degassing and Filtering<\/title>\n<meta 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