\u00e9quipement de d\u00e9gazage<\/a> \u0153uvres<\/p>\nLe rotor en rotation divise l'azote (ou l'argon) inject\u00e9 dans le bain d'aluminium fondu en une grande quantit\u00e9 de bulles dispers\u00e9es et les r\u00e9partit dans le m\u00e9tal en fusion.<\/p>\n
Les bulles pr\u00e9sentes dans le bain fondu, gr\u00e2ce \u00e0 la diff\u00e9rence de pression partielle du gaz et au principe d'adsorption en surface, absorbent l'hydrog\u00e8ne contenu dans le bain fondu, adsorbent les scories oxyd\u00e9es et sont \u00e9vacu\u00e9es de la surface du bain fondu \u00e0 mesure qu'elles remontent, ce qui permet de purifier le bain fondu.<\/p>\n
En raison de la faible dispersion des bulles, celles-ci se m\u00e9langent uniform\u00e9ment \u00e0 la masse fondue en rotation, puis d\u00e9crivent une spirale avant de remonter lentement \u00e0 la surface. Le temps de contact avec la masse fondue est long, et le flux d'air g\u00e9n\u00e9r\u00e9 par la remont\u00e9e continue et rectiligne ne se forme pas, ce qui permet d'\u00e9liminer l'hydrog\u00e8ne nocif pr\u00e9sent dans la masse fondue d'aluminium, ce qui est remarquable. Cela am\u00e9liore l'efficacit\u00e9 de la purification.<\/p>\n
Le rotor en rotation divise l'azote (ou l'argon) pr\u00e9sent dans l'eau d'aluminium en une grande quantit\u00e9 de bulles diffuses et les disperse dans le m\u00e9tal en fusion.
\nLa bulle pr\u00e9sente dans le bain fondu r\u00e9sulte de la diff\u00e9rence de pression partielle des gaz et du principe d'adsorption en surface ; elle absorbe l'hydrog\u00e8ne pr\u00e9sent dans le bain fondu ainsi que les scories oxyd\u00e9es, puis est \u00e9vacu\u00e9e de la surface du bain fondu \u00e0 mesure qu'elle remonte, ce qui permet de purifier le bain fondu.<\/p>\n
En raison de la faible dispersion des bulles, celles-ci se m\u00e9langent uniform\u00e9ment \u00e0 la masse en fusion en rotation, puis tournent en spirale et remontent lentement \u00e0 la surface. Lorsqu\u2019elles entrent en contact avec le m\u00e9tal en fusion, elles ne forment pas de flux d\u2019air continu, ce qui am\u00e9liore consid\u00e9rablement l\u2019efficacit\u00e9 de la purification.<\/p>\n
L'argon et l'azote peuvent tous deux \u00eatre utilis\u00e9s comme gaz inerte pour le d\u00e9gazage de l'aluminium liquide dans le cadre du traitement de purification des alliages d'aluminium. La puret\u00e9 du gaz inerte doit \u00eatre sup\u00e9rieure \u00e0 99,95%.<\/p>","protected":false},"excerpt":{"rendered":"
The liquid aluminum alloy purification treatment process is the main means to improve the comprehensive performance of aluminum alloy. In the purification treatment process, the…<\/p>","protected":false},"author":1,"featured_media":8137,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8136","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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