{"id":27478,"date":"2023-08-02T09:42:30","date_gmt":"2023-08-02T09:42:30","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=27478"},"modified":"2023-08-02T09:42:30","modified_gmt":"2023-08-02T09:42:30","slug":"northwest-aluminum-online-degassing-equipment","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/northwest-aluminum-online-degassing-equipment\/","title":{"rendered":"Le fonctionnement des \u00e9quipements de d\u00e9gazage en ligne de Northwest Aluminum r\u00e9pond aux exigences"},"content":{"rendered":"

Le fonctionnement de Northwest Aluminum Online \u00c9quipements de d\u00e9gazage<\/a> r\u00e9pond aux exigences<\/strong><\/p>\n

Au 27 juin 2023, la ligne de production de Northwest Aluminum est en service depuis un certain temps d\u00e9j\u00e0, et la teneur en hydrog\u00e8ne \u00e0 la sortie de l\u2019\u00e9quipement de d\u00e9gazage a baiss\u00e9 \u00e0 0,11 ml\/100 g-AL, ce qui ne r\u00e9pond pas aux exigences \u00e9lev\u00e9es du client en mati\u00e8re de d\u00e9gazage (0,1 ml\/100 g-AL). \u00c0 la demande du client, je me suis rendu sur son site afin d\u2019inspecter le fonctionnement des \u00e9quipements, d\u2019ajuster leurs param\u00e8tres, d\u2019analyser les raisons pour lesquelles la teneur en hydrog\u00e8ne ne respectait pas la norme et de proposer des solutions adapt\u00e9es.
\nDu 28 juin 2023 au 20 juillet 2023, apr\u00e8s 23 jours de suivi de la production sur le site du client, l'analyse a finalement conclu que la raison pour laquelle la teneur en hydrog\u00e8ne ne r\u00e9pondait pas aux exigences du client \u00e9tait la suivante :
\n1. \u00c0 l'heure actuelle, le niveau de liquide \u00e0 l'entr\u00e9e et \u00e0 la sortie de l'\u00e9quipement de d\u00e9gazage est relativement bas, inf\u00e9rieur \u00e0 celui d'autres fabricants du m\u00eame secteur (en r\u00e8gle g\u00e9n\u00e9rale, le niveau de liquide sur la ligne de production est \u2265 \u00e0 la moiti\u00e9 de la profondeur du canal d'\u00e9coulement). Il est donc n\u00e9cessaire d\u2019augmenter le niveau de liquide \u00e0 l\u2019entr\u00e9e et \u00e0 la sortie de l\u2019\u00e9quipement de d\u00e9gazage. Cela permet d\u2019\u00e9lever le niveau de liquide \u00e0 l\u2019int\u00e9rieur de la cuve, ce qui se traduit par une plus grande quantit\u00e9 d\u2019aluminium liquide pendant le fonctionnement. L'argon peut ainsi disposer d'une plus grande surface de contact avec l'aluminium liquide, ce qui permet d'extraire davantage d'hydrog\u00e8ne et de lib\u00e9rer le v\u00e9ritable potentiel de d\u00e9gazage de l'\u00e9quipement de d\u00e9gazage !
\n2. D\u2019apr\u00e8s nos nombreuses ann\u00e9es d\u2019exp\u00e9rience dans le suivi des \u00e9quipements sur site et la mesure de l\u2019hydrog\u00e8ne, la sonde du hydrom\u00e8tre doit \u00eatre plac\u00e9e au milieu entre les deux parois lat\u00e9rales du canal d\u2019\u00e9coulement. Parall\u00e8lement, l\u2019extr\u00e9mit\u00e9 sup\u00e9rieure de la sonde doit \u00eatre immerg\u00e9e \u00e0 50 mm (\u2265 50 mm) sous la surface de l\u2019aluminium en fusion. Lorsque l'extr\u00e9mit\u00e9 inf\u00e9rieure de la sonde se trouve \u00e0 une distance \u2265 50 mm du fond du canal d'\u00e9coulement, nous pouvons obtenir une valeur de teneur en hydrog\u00e8ne plus repr\u00e9sentative de l'aluminium liquide ! Cela n\u00e9cessite que la profondeur de l'aluminium liquide \u00e0 l'entr\u00e9e et \u00e0 la sortie de notre \u00e9quipement de d\u00e9gazage soit sup\u00e9rieure \u00e0 130 mm !
\nApr\u00e8s analyse de la cause, des mesures efficaces ont \u00e9t\u00e9 prises en collaboration avec le client afin d'augmenter artificiellement le niveau de liquide dans le r\u00e9servoir de circulation. La teneur en hydrog\u00e8ne mesur\u00e9e par l'hydrom\u00e8tre r\u00e9pondait aux exigences du client : teneur en hydrog\u00e8ne \u2264 0,1 ml\/100 g-AL ;
\nLes valeurs types sont les suivantes : y
\nAlliage de la s\u00e9rie 2 : alliage 2024
\nTeneur en hydrog\u00e8ne \u00e0 l'entr\u00e9e du unit\u00e9 de d\u00e9gazage<\/a>:<\/p>\n

\"\u00c9quipements
\u00c9quipements de d\u00e9gazage en ligne de Northwest Aluminum<\/figcaption><\/figure>\n

Teneur en hydrog\u00e8ne \u00e0 la sortie de l'installation de d\u00e9gazage :<\/p>\n

\"\"<\/p>\n

Alliage de la s\u00e9rie 7 : alliage 7A04
\nTeneur en hydrog\u00e8ne \u00e0 l'entr\u00e9e de l'installation de d\u00e9gazage :<\/p>\n

\"\"
\nTeneur en hydrog\u00e8ne \u00e0 la sortie de l'installation de d\u00e9gazage :<\/p>\n

\"\"
\nAlliage de la s\u00e9rie 5 : alliage 5083
\nTeneur en hydrog\u00e8ne \u00e0 l'entr\u00e9e de l'installation de d\u00e9gazage :<\/p>\n

\"\"<\/p>\n

Teneur en hydrog\u00e8ne \u00e0 la sortie de l'installation de d\u00e9gazage :<\/p>\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"

The operation of Northwest Aluminum Online Degassing Equipment meets the requirements As of June 27, 2023, the Northwest Aluminum production line has been in operation…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233,138],"tags":[19],"class_list":["post-27478","post","type-post","status-publish","format-standard","hentry","category-blog","category-seo","tag-degassing-unit"],"yoast_head":"\nThe operation of online degassing equipment of Northwest Aluminum meets the requirements<\/title>\n<meta name=\"description\" content=\"The operation of online degassing equipment of Northwest Aluminum meets the requirements of June 27, 2023, the Northwest Aluminum ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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