{"id":3585,"date":"2020-08-11T09:41:20","date_gmt":"2020-08-11T09:41:20","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=3585"},"modified":"2026-04-02T07:21:53","modified_gmt":"2026-04-02T07:21:53","slug":"how-to-use-aluminum-flux","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/how-to-use-aluminum-flux\/","title":{"rendered":"Comment utiliser un flux \u00e0 base d'aluminium : m\u00e9thodes \u00e9tape par \u00e9tape pour am\u00e9liorer la qualit\u00e9 de la fusion et r\u00e9duire les scories"},"content":{"rendered":"<h2>Comment utiliser un flux \u00e0 base d'aluminium : guide \u00e9tape par \u00e9tape pour une fusion plus propre et un meilleur taux de r\u00e9cup\u00e9ration du m\u00e9tal<\/h2>\n<p data-start=\"197\" data-end=\"329\">Comprendre <strong data-start=\"211\" data-end=\"249\">Comment utiliser correctement le flux \u00e0 base d'aluminium<\/strong> est l'un des facteurs les plus d\u00e9terminants dans les op\u00e9rations de fusion et de moulage de l'aluminium.<\/p>\n<p data-start=\"331\" data-end=\"614\">Dans les fonderies, on sous-estime souvent l'importance du flux. De nombreux op\u00e9rateurs pensent qu'il suffit d'en ajouter davantage pour obtenir automatiquement de meilleurs r\u00e9sultats. Or, l'exp\u00e9rience pratique montre qu'une mauvaise utilisation entra\u00eene souvent une production accrue de scories, une oxydation plus importante et des pertes de m\u00e9tal inutiles.<\/p>\n<p data-start=\"616\" data-end=\"794\">Ce guide explique <strong data-start=\"636\" data-end=\"683\">Comment utiliser le flux \u00e0 base d'aluminium en conditions r\u00e9elles de production<\/strong>, notamment le moment d'application, le dosage et les techniques d'application qui ont une incidence directe sur la propret\u00e9 de la masse fondue et le taux de r\u00e9cup\u00e9ration.<\/p>\n<h2>Quelle est la bonne fa\u00e7on d'utiliser un flux \u00e0 base d'aluminium lors de la fusion de l'aluminium ?<\/h2>\n<p data-start=\"921\" data-end=\"988\">Pour utiliser correctement un flux \u00e0 base d'aluminium, il convient de respecter trois principes fondamentaux :<\/p>\n<ul data-start=\"990\" data-end=\"1053\">\n<li data-start=\"990\" data-end=\"1007\">Un timing bien choisi<\/li>\n<li data-start=\"1008\" data-end=\"1029\">R\u00e9partition uniforme<\/li>\n<li data-start=\"1030\" data-end=\"1053\">R\u00e9action contr\u00f4l\u00e9e<\/li>\n<\/ul>\n<p data-start=\"1055\" data-end=\"1158\">\ud83d\udc49Conseils : il ne faut jamais ajouter de flux au hasard. Il doit au contraire \u00eatre adapt\u00e9 au stade de fusion et aux exigences du processus.<\/p>\n<h2>\u00c0 quel moment faut-il ajouter du fondant \u00e0 base d'aluminium pendant le processus de fusion ?<\/h2>\n<p data-start=\"1314\" data-end=\"1370\">C'est le moment choisi qui d\u00e9termine si le flux est efficace ou non.<\/p>\n<h3 data-start=\"1372\" data-end=\"1428\">Phase initiale : comment utiliser le flux lors de la fusion initiale ?<\/h3>\n<p data-start=\"1430\" data-end=\"1458\">Au d\u00e9but de la fonte :<\/p>\n<ul data-start=\"1460\" data-end=\"1618\">\n<li data-start=\"1460\" data-end=\"1518\">Utilisation<strong><a href=\"https:\/\/www.alalloycasting.com\/fr\/oxide-removal-flux\/\" target=\"_blank\" rel=\"noopener\"> <span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;flux de d\u00e9soxydation (\u00e9galement appel\u00e9 flux de nettoyage)&nbsp;<\/span><\/a><\/strong><\/li>\n<li data-start=\"1519\" data-end=\"1558\">Ajouter lorsque l'aluminium commence \u00e0 se liqu\u00e9fier<\/li>\n<li data-start=\"1559\" data-end=\"1618\">Objectif : \u00e9liminer les inclusions d'oxyde et les impuret\u00e9s de surface<\/li>\n<\/ul>\n<figure id=\"attachment_82763\" aria-describedby=\"caption-attachment-82763\" style=\"width: 903px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-82763\" src=\"http:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Oxide-Removal-Flux-2.webp\" alt=\"flux d&#039;\u00e9limination des oxydes pour la fusion de poudre d&#039;aluminium\" width=\"903\" height=\"722\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Oxide-Removal-Flux-2.webp 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Oxide-Removal-Flux-2-300x240.webp 300w\" sizes=\"auto, (max-width: 903px) 100vw, 903px\" \/><figcaption id=\"caption-attachment-82763\" class=\"wp-caption-text\"><em>\u00a0 \u00a0 \u00a0 Flux de d\u00e9soxydation utilis\u00e9 pour \u00e9liminer les inclusions d'oxyde d'aluminium et am\u00e9liorer la puret\u00e9 de la masse fondue au d\u00e9but du processus de fusion de l'aluminium.<\/em><\/figcaption><\/figure>\n<h3 data-start=\"1625\" data-end=\"1682\">\u00c9tape interm\u00e9diaire : comment utiliser un flux d'affinage pour le d\u00e9gazage ?<\/h3>\n<p data-start=\"1684\" data-end=\"1719\">Lorsque l'aluminium est enti\u00e8rement fondu :<\/p>\n<ul data-start=\"1721\" data-end=\"1865\">\n<li data-start=\"1721\" data-end=\"1775\">Utilisation <strong><a href=\"https:\/\/www.alalloycasting.com\/fr\/refining-flux\/\" target=\"_blank\" rel=\"noopener\"><span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;flux de raffinage (\u00e9galement appel\u00e9 flux de d\u00e9gazage)&nbsp;<\/span><\/a><\/strong><\/li>\n<li data-start=\"1776\" data-end=\"1816\">Appliquer uniform\u00e9ment et laisser agir<\/li>\n<li data-start=\"1817\" data-end=\"1865\">Objectif : \u00e9liminer l'hydrog\u00e8ne et les inclusions fines<\/li>\n<\/ul>\n<p data-start=\"1867\" data-end=\"1998\">\ud83d\udc49 Selon <a href=\"https:\/\/www.aluminum.org\/\" target=\"_blank\" rel=\"noopener\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">L'Association de l'aluminium<\/span><\/span><\/a>, le contr\u00f4le de la teneur en gaz est essentiel pour r\u00e9duire la porosit\u00e9 des pi\u00e8ces moul\u00e9es en aluminium.<\/p>\n<figure id=\"attachment_82761\" aria-describedby=\"caption-attachment-82761\" style=\"width: 738px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-82761\" src=\"http:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/AdTech-refining-Fluxes.webp\" alt=\"flux de raffinage pour le d\u00e9gazage et la purification de l&#039;aluminium\" width=\"738\" height=\"590\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/AdTech-refining-Fluxes.webp 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/AdTech-refining-Fluxes-300x240.webp 300w\" sizes=\"auto, (max-width: 738px) 100vw, 738px\" \/><figcaption id=\"caption-attachment-82761\" class=\"wp-caption-text\"><em>\u00a0 Flux d'affinage utilis\u00e9 pour \u00e9liminer l'hydrog\u00e8ne et les inclusions fines, am\u00e9liorant ainsi la puret\u00e9 de la masse d'aluminium en fusion et la qualit\u00e9 de la coul\u00e9e.<\/em><\/figcaption><\/figure>\n<h3 data-start=\"2005\" data-end=\"2066\">Derni\u00e8re \u00e9tape : comment utiliser un fondant de d\u00e9carburation pour \u00e9liminer les scories ?<\/h3>\n<p data-start=\"2068\" data-end=\"2083\">Avant de verser :<\/p>\n<ul data-start=\"2085\" data-end=\"2231\">\n<li data-start=\"2085\" data-end=\"2140\">Utilisation<strong> <a href=\"https:\/\/www.alalloycasting.com\/fr\/deslagging-flux\/\" target=\"_blank\" rel=\"noopener\"><span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;flux de d\u00e9carburation (\u00e9galement appel\u00e9 flux de d\u00e9cantation)&nbsp;<\/span><\/a><\/strong><\/li>\n<li data-start=\"2141\" data-end=\"2175\">R\u00e9partir sur toute la surface fondue<\/li>\n<li data-start=\"2176\" data-end=\"2231\">Objectif : s\u00e9parer les scories et r\u00e9cup\u00e9rer l'aluminium pi\u00e9g\u00e9<\/li>\n<\/ul>\n<p data-start=\"2233\" data-end=\"2333\">\ud83d\udc49 Vous pouvez \u00e9galement d\u00e9couvrir ici les applications d\u00e9taill\u00e9es des flux de d\u00e9carburation :<strong><a href=\"https:\/\/www.alalloycasting.com\/fr\/flux-for-aluminum-melting\/\" target=\"_blank\" rel=\"noopener\">Flux de d\u00e9carburation, agent de d\u00e9carburation, flux de d\u00e9carburation de l'aluminium<\/a><\/strong><\/p>\n<figure id=\"attachment_82762\" aria-describedby=\"caption-attachment-82762\" style=\"width: 755px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-82762\" src=\"http:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/deslagging-flux-for-Aluminum.webp\" alt=\"flux de d\u00e9carburation pour l&#039;\u00e9limination des scories d&#039;aluminium\" width=\"755\" height=\"604\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/deslagging-flux-for-Aluminum.webp 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/deslagging-flux-for-Aluminum-300x240.webp 300w\" sizes=\"auto, (max-width: 755px) 100vw, 755px\" \/><figcaption id=\"caption-attachment-82762\" class=\"wp-caption-text\"><em>\u00a0 \u00a0 Flux de d\u00e9carburation (\u00e9galement appel\u00e9 flux de d\u00e9cantation) utilis\u00e9 pour s\u00e9parer les scories et r\u00e9cup\u00e9rer l'aluminium pi\u00e9g\u00e9 dans le m\u00e9tal en fusion.<\/em><\/figcaption><\/figure>\n<h3 data-start=\"2340\" data-end=\"2399\">\u00c9tape de transfert : comment utiliser le flux de r\u00e9partiteur pour assurer la protection ?<\/h3>\n<p data-start=\"2401\" data-end=\"2428\">Pendant le transfert ou la conservation :<\/p>\n<ul data-start=\"2430\" data-end=\"2566\">\n<li data-start=\"2430\" data-end=\"2479\">Utilisation <strong><a href=\"https:\/\/www.alalloycasting.com\/fr\/tundish-flux\/\" target=\"_blank\" rel=\"noopener\"><span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;flux de r\u00e9partiteur (\u00e9galement appel\u00e9 \u00ab flux de recouvrement \u00bb)&nbsp;<\/span><\/a><\/strong><\/li>\n<li data-start=\"2480\" data-end=\"2514\">Veiller \u00e0 ce que toute la surface soit bien recouverte<\/li>\n<li data-start=\"2515\" data-end=\"2566\">Objectif : emp\u00eacher l'oxydation et r\u00e9duire les pertes thermiques<\/li>\n<\/ul>\n<figure id=\"attachment_82764\" aria-describedby=\"caption-attachment-82764\" style=\"width: 777px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-82764\" src=\"http:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Tundish-Flux.webp\" alt=\"flux pour bac de r\u00e9partition destin\u00e9 \u00e0 l&#039;isolation et \u00e0 la protection de l&#039;aluminium\" width=\"777\" height=\"621\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Tundish-Flux.webp 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Tundish-Flux-300x240.webp 300w\" sizes=\"auto, (max-width: 777px) 100vw, 777px\" \/><figcaption id=\"caption-attachment-82764\" class=\"wp-caption-text\"><em>\u00a0 Le flux de r\u00e9partiteur forme une couche protectrice \u00e0 la surface de l'aluminium fondu afin de r\u00e9duire l'oxydation et les pertes thermiques pendant le transfert et le maintien en temp\u00e9rature.<\/em><\/figcaption><\/figure>\n<h2>Comment appliquer correctement un flux \u00e0 base d'aluminium ?<\/h2>\n<p>Une m\u00e9thode d'application correcte a une incidence directe sur l'efficacit\u00e9.<\/p>\n<h3 data-start=\"2671\" data-end=\"2695\">M\u00e9thode \u00e9tape par \u00e9tape :<\/h3>\n<ol data-start=\"2697\" data-end=\"2922\">\n<li data-start=\"2697\" data-end=\"2742\">S'assurer que la surface de l'aluminium fondu est stable<\/li>\n<li data-start=\"2743\" data-end=\"2792\">R\u00e9partissez uniform\u00e9ment le flux sur toute la surface<\/li>\n<li data-start=\"2793\" data-end=\"2832\">\u00c9vitez de d\u00e9verser le flux au m\u00eame endroit<\/li>\n<li data-start=\"2833\" data-end=\"2883\">Pr\u00e9voir un temps de r\u00e9action suffisant (5 \u00e0 10 minutes)<\/li>\n<li data-start=\"2884\" data-end=\"2922\">Retirez d\u00e9licatement les scories apr\u00e8s la r\u00e9action.<\/li>\n<\/ol>\n<p data-start=\"2924\" data-end=\"2999\">\ud83d\udc49 Cette m\u00e9thode garantit une r\u00e9action chimique homog\u00e8ne et une efficacit\u00e9 maximale.<\/p>\n<figure id=\"attachment_82756\" aria-describedby=\"caption-attachment-82756\" style=\"width: 932px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-82756\" src=\"http:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/1490_ow4xBmJJ.webp\" alt=\"appliquer uniform\u00e9ment du flux \u00e0 base d&#039;aluminium sur la surface du m\u00e9tal en fusion\" width=\"932\" height=\"621\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/1490_ow4xBmJJ.webp 1536w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/1490_ow4xBmJJ-300x200.webp 300w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/1490_ow4xBmJJ-768x512.webp 768w\" sizes=\"auto, (max-width: 932px) 100vw, 932px\" \/><figcaption id=\"caption-attachment-82756\" class=\"wp-caption-text\"><em>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0M\u00e9thode appropri\u00e9e pour appliquer le flux d'aluminium en l'\u00e9talant uniform\u00e9ment sur la surface de l'aluminium fondu.<\/em><\/figcaption><\/figure>\n<h2 data-start=\"2924\" data-end=\"2999\">Quelles sont les meilleures conditions pour utiliser efficacement un flux \u00e0 base d'aluminium ?<\/h2>\n<p data-start=\"264\" data-end=\"418\">Pour obtenir les meilleurs r\u00e9sultats lors de l'apprentissage de l'utilisation du flux pour l'aluminium, il est tout aussi important de ma\u00eetriser les conditions de travail que de choisir le bon mat\u00e9riau.<\/p>\n<p data-start=\"420\" data-end=\"545\">Dans les conditions r\u00e9elles d'une fonderie, les performances du flux d\u00e9pendent fortement de la temp\u00e9rature, de l'\u00e9tat de la surface et de l'atmosph\u00e8re du four.<\/p>\n<h3 data-start=\"2924\" data-end=\"2999\">Les conditions optimales sont les suivantes :<\/h3>\n<ul>\n<li data-start=\"580\" data-end=\"647\">Temp\u00e9rature de fusion comprise entre <strong data-start=\"607\" data-end=\"620\">700 \u00e0 750 \u00b0C<\/strong> pour la plupart des alliages d'aluminium<\/li>\n<li data-start=\"648\" data-end=\"705\">Une surface de bain de fusion relativement calme avant l'ajout de flux<\/li>\n<li data-start=\"706\" data-end=\"769\">Des mat\u00e9riaux de flux secs et pr\u00e9chauff\u00e9s afin d'\u00e9viter toute r\u00e9action due \u00e0 l'humidit\u00e9<\/li>\n<li data-start=\"770\" data-end=\"816\">Exposition minimale \u00e0 l'air pendant l'application<\/li>\n<\/ul>\n<h3 data-start=\"2924\" data-end=\"2999\">Pourquoi est-ce important ? :<\/h3>\n<p data-start=\"841\" data-end=\"950\">Si un flux \u00e0 base d'aluminium est utilis\u00e9 dans des conditions instables, son efficacit\u00e9 r\u00e9active diminue consid\u00e9rablement. Par exemple :<\/p>\n<ul data-start=\"952\" data-end=\"1089\">\n<li data-start=\"952\" data-end=\"993\">Basse temp\u00e9rature \u2192 r\u00e9action incompl\u00e8te<\/li>\n<li data-start=\"994\" data-end=\"1040\">Turbulence excessive \u2192 oxydation accrue<\/li>\n<li data-start=\"1041\" data-end=\"1089\">Flux humide \u2192 risques pour la s\u00e9curit\u00e9 et performances m\u00e9diocres<\/li>\n<\/ul>\n<p data-start=\"1091\" data-end=\"1219\">\ud83d\udc49 Conseils : le maintien de conditions stables peut am\u00e9liorer le rendement du flux de <strong data-start=\"1182\" data-end=\"1218\">15\u201325% sans augmentation de la posologie<\/strong>.<\/p>\n<h2>Quelle est la dose recommand\u00e9e pour l'utilisation d'un flux \u00e0 base d'aluminium ?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Type de flux<\/th>\n<th>Posologie recommand\u00e9e<\/th>\n<th>\u00c9tape de candidature<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Flux d'\u00e9limination des oxydes<\/td>\n<td>0.3\u20130.6%<\/td>\n<td>Phase initiale<\/td>\n<\/tr>\n<tr>\n<td>Flux de raffinage<\/td>\n<td>0.2\u20130.5%<\/td>\n<td>Phase interm\u00e9diaire<\/td>\n<\/tr>\n<tr>\n<td>Flux de d\u00e9carburation<\/td>\n<td>0.5\u20131.0%<\/td>\n<td>Derni\u00e8re \u00e9tape<\/td>\n<\/tr>\n<tr>\n<td>Flux pour bac de r\u00e9partition<\/td>\n<td>Couverture de surface<\/td>\n<td>Transfert<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ces fourchettes de dosage sont bas\u00e9es sur les pratiques r\u00e9elles en fonderie et peuvent varier en fonction de la qualit\u00e9 de la ferraille, du type de four et de la composition de l'alliage.<\/p>\n<h2>Quelles sont les meilleures techniques pour utiliser un flux \u00e0 base d'aluminium ?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Mode d'emploi<\/th>\n<th>Efficacit\u00e9<\/th>\n<th>R\u00e9sultat concret<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u00c9pandage en surface<\/td>\n<td>\u00c9lev\u00e9<\/td>\n<td>R\u00e9action uniforme<\/td>\n<\/tr>\n<tr>\n<td>Dumping ponctuel<\/td>\n<td>Faible<\/td>\n<td>Couverture incompl\u00e8te<\/td>\n<\/tr>\n<tr>\n<td>Agitation contr\u00f4l\u00e9e<\/td>\n<td>Moyen<\/td>\n<td>Des performances \u00e9quilibr\u00e9es<\/td>\n<\/tr>\n<tr>\n<td>Agitation excessive<\/td>\n<td>Faible<\/td>\n<td>Augmentation de l'oxydation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Cette comparaison refl\u00e8te l'exp\u00e9rience op\u00e9rationnelle r\u00e9elle des usines de moulage d'aluminium.<\/em><\/p>\n<h2>Que se passe-t-il en cas d'utilisation incorrecte d'un flux \u00e0 base d'aluminium ?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Utilisation incorrecte<\/th>\n<th>R\u00e9sultat<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Application in\u00e9gale<\/td>\n<td>\u00c9limination insuffisante des impuret\u00e9s<\/td>\n<\/tr>\n<tr>\n<td>Flux excessif<\/td>\n<td>Co\u00fbt plus \u00e9lev\u00e9, risque de contamination<\/td>\n<\/tr>\n<tr>\n<td>Mauvais moment<\/td>\n<td>Baisse de rendement<\/td>\n<\/tr>\n<tr>\n<td>M\u00e9lange excessif<\/td>\n<td>Augmentation de l'oxydation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Ces probl\u00e8mes sont fr\u00e9quemment observ\u00e9s en conditions r\u00e9elles de production et sont souvent interpr\u00e9t\u00e9s \u00e0 tort comme des probl\u00e8mes li\u00e9s aux mat\u00e9riaux.<\/em><\/p>\n<h2>Quels sont les signes d'une utilisation efficace du flux \u00e0 base d'aluminium ?<\/h2>\n<p>En conditions r\u00e9elles de production, les op\u00e9rateurs exp\u00e9riment\u00e9s ne se fient pas \u00e0 la th\u00e9orie : ils \u00e9valuent les performances du flux \u00e0 l'aune des r\u00e9sultats visibles.<\/p>\n<h3 data-start=\"1510\" data-end=\"1550\">Indicateurs cl\u00e9s d'une utilisation correcte du flux :<\/h3>\n<ul data-start=\"1552\" data-end=\"1744\">\n<li data-start=\"1552\" data-end=\"1601\">Des scories apparaissent <strong data-start=\"1568\" data-end=\"1587\">sec et poudreux<\/strong>, non collant<\/li>\n<li data-start=\"1602\" data-end=\"1647\">Quantit\u00e9 minime d'aluminium m\u00e9tallique pi\u00e9g\u00e9e dans les scories<\/li>\n<li data-start=\"1648\" data-end=\"1693\">La surface de fusion devient <strong data-start=\"1671\" data-end=\"1691\">propre et stable<\/strong><\/li>\n<li data-start=\"1694\" data-end=\"1744\">Une couche de scories se forme rapidement et s'enl\u00e8ve facilement<\/li>\n<\/ul>\n<h3 data-start=\"1746\" data-end=\"1778\">Signes avant-coureurs d'une mauvaise utilisation :<\/h3>\n<ul data-start=\"1780\" data-end=\"1923\">\n<li data-start=\"1780\" data-end=\"1824\">Scories humides ou denses (indiquant une perte de m\u00e9tal)<\/li>\n<li data-start=\"1825\" data-end=\"1859\">Fum\u00e9e \u00e9paisse pendant l'application<\/li>\n<li data-start=\"1860\" data-end=\"1888\">R\u00e9partition in\u00e9gale des scories<\/li>\n<li data-start=\"1889\" data-end=\"1923\">N\u00e9cessit\u00e9 r\u00e9p\u00e9t\u00e9e d'un nouveau traitement<\/li>\n<\/ul>\n<h2 data-start=\"84\" data-end=\"152\">\u00c9tude de cas \u00ab Real Foundry \u00bb : comment une utilisation ad\u00e9quate du flux a permis d'am\u00e9liorer la r\u00e9cup\u00e9ration de l'aluminium<\/h2>\n<p data-start=\"154\" data-end=\"344\">Une usine de moulage sous pression situ\u00e9e \u00e0 <strong data-start=\"185\" data-end=\"195\">Pologne<\/strong>, sp\u00e9cialis\u00e9e dans la fabrication de composants automobiles en aluminium (principalement des alliages Al-Si), \u00e9tait confront\u00e9e \u00e0 des probl\u00e8mes persistants li\u00e9s \u00e0 l'instabilit\u00e9 de la masse fondue et \u00e0 une production importante de scories.<\/p>\n<p data-start=\"346\" data-end=\"424\">Avant de collaborer avec l'\u00e9quipe technique d'AdTech, leur processus se d\u00e9roulait comme suit :<\/p>\n<ul data-start=\"426\" data-end=\"678\">\n<li data-start=\"426\" data-end=\"487\">Le flux a \u00e9t\u00e9 ajout\u00e9 de mani\u00e8re al\u00e9atoire par petites quantit\u00e9s (\u201c ajout ponctuel \u201d)<\/li>\n<li data-start=\"488\" data-end=\"552\">Les op\u00e9rateurs se fiaient \u00e0 leur jugement visuel plut\u00f4t qu'\u00e0 des d\u00e9lais fixes<\/li>\n<li data-start=\"553\" data-end=\"614\">On a proc\u00e9d\u00e9 \u00e0 des agitations manuelles fr\u00e9quentes afin d\u201c\u201d acc\u00e9l\u00e9rer \u00bb les r\u00e9actions<\/li>\n<li data-start=\"615\" data-end=\"678\">Il n'y a pas de distinction claire entre les \u00e9tapes d'affinage et de d\u00e9carburation<\/li>\n<\/ul>\n<p data-start=\"680\" data-end=\"692\">En cons\u00e9quence :<\/p>\n<ul data-start=\"694\" data-end=\"928\">\n<li data-start=\"694\" data-end=\"747\">Production moyenne de scories <strong data-start=\"722\" data-end=\"745\">4,51 TP3T \u2013 5,21 TP3T par lot<\/strong><\/li>\n<li data-start=\"748\" data-end=\"815\">Les scories \u00e9taient denses et collantes, et contenaient de l'aluminium m\u00e9tallique visible.<\/li>\n<li data-start=\"816\" data-end=\"864\">La surface de la masse fondue s'est rapidement oxyd\u00e9e pendant la phase de maintien<\/li>\n<li data-start=\"865\" data-end=\"928\">Les op\u00e9rateurs ont signal\u00e9 une forte intensit\u00e9 de main-d'\u0153uvre lors de l'enl\u00e8vement des scories<\/li>\n<\/ul>\n<h3 data-start=\"935\" data-end=\"974\">Optimisation des processus par l'\u00e9quipe AdTech<\/h3>\n<p data-start=\"976\" data-end=\"1073\">\u00c0 l'issue d'une \u00e9valuation sur place, l'\u00e9quipe d'ing\u00e9nieurs d'AdTech a mis en \u0153uvre plusieurs ajustements cibl\u00e9s :<\/p>\n<ol data-start=\"1075\" data-end=\"1624\">\n<li data-start=\"1075\" data-end=\"1208\"><strong data-start=\"1078\" data-end=\"1118\">M\u00e9thode normalis\u00e9e d'application du flux<\/strong><br data-start=\"1118\" data-end=\"1121\" \/>On est pass\u00e9 du d\u00e9versement ponctuel \u2192 <strong data-start=\"1153\" data-end=\"1179\">\u00e9pandage sur toute la surface<\/strong> pour garantir une r\u00e9action homog\u00e8ne<\/li>\n<li data-start=\"1210\" data-end=\"1400\"><strong data-start=\"1213\" data-end=\"1242\">\u00c9tapes d'utilisation de Defined Flux<\/strong>\n<ul data-start=\"1248\" data-end=\"1400\">\n<li data-start=\"1248\" data-end=\"1299\">Flux d'\u00e9limination des oxydes ajout\u00e9 au d\u00e9but de la fusion<\/li>\n<li data-start=\"1303\" data-end=\"1347\">Flux d'affinage appliqu\u00e9 apr\u00e8s fusion compl\u00e8te<\/li>\n<li data-start=\"1351\" data-end=\"1400\">Flux de d\u00e9carburation utilis\u00e9 uniquement avant l'\u00e9limination des scories<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1402\" data-end=\"1506\"><strong data-start=\"1405\" data-end=\"1439\">R\u00e9duction des perturbations m\u00e9caniques<\/strong><br data-start=\"1439\" data-end=\"1442\" \/>Limiter les agitations inutiles afin d'\u00e9viter une oxydation secondaire<\/li>\n<li data-start=\"1508\" data-end=\"1624\"><strong data-start=\"1511\" data-end=\"1539\">Temps de r\u00e9action contr\u00f4l\u00e9<\/strong><br data-start=\"1539\" data-end=\"1542\" \/>Chaque phase de flux a conserv\u00e9 une fen\u00eatre de r\u00e9action constante (environ 6 \u00e0 8 minutes)<\/li>\n<\/ol>\n<h3 data-start=\"1631\" data-end=\"1680\">R\u00e9sultats apr\u00e8s la mise en \u0153uvre (dans un d\u00e9lai de deux semaines)<\/h3>\n<ul data-start=\"1682\" data-end=\"2004\">\n<li data-start=\"1682\" data-end=\"1730\">Taux de scories r\u00e9duit de <strong data-start=\"1708\" data-end=\"1728\">~5% \u00e0 3,6%\u20133,9%<\/strong><\/li>\n<li data-start=\"1731\" data-end=\"1790\">La teneur en aluminium m\u00e9tallique dans les scories a diminu\u00e9 de <strong data-start=\"1780\" data-end=\"1788\">~30%<\/strong><\/li>\n<li data-start=\"1791\" data-end=\"1847\">Le taux de r\u00e9cup\u00e9ration de l'aluminium a augment\u00e9 d'environ <strong data-start=\"1837\" data-end=\"1845\">2.3%<\/strong><\/li>\n<li data-start=\"1848\" data-end=\"1912\">Les scories se sont transform\u00e9es en <strong data-start=\"1862\" data-end=\"1910\">sec, en vrac et plus facile \u00e0 retirer en un seul passage<\/strong><\/li>\n<li data-start=\"1913\" data-end=\"2004\">Le fonctionnement du four est devenu plus stable, avec moins de fluctuations de l'\u00e9tat de la surface de la masse fondue<\/li>\n<\/ul>\n<h3 data-start=\"2011\" data-end=\"2032\">Commentaires des op\u00e9rateurs<\/h3>\n<p data-start=\"2034\" data-end=\"2055\">Les op\u00e9rateurs ont fait remarquer que :<\/p>\n<ul data-start=\"2057\" data-end=\"2212\">\n<li data-start=\"2057\" data-end=\"2098\">Les r\u00e9actions de flux sont devenues plus pr\u00e9visibles<\/li>\n<li data-start=\"2099\" data-end=\"2153\">L'enl\u00e8vement des scories a n\u00e9cessit\u00e9 moins d'effort physique<\/li>\n<li data-start=\"2154\" data-end=\"2212\">La surface de fusion est rest\u00e9e plus propre pendant des dur\u00e9es de maintien plus longues<\/li>\n<\/ul>\n<p data-start=\"2214\" data-end=\"2386\">Avis des clients :<br data-start=\"2242\" data-end=\"2245\" \/>\u201c Avant, nous pensions que le probl\u00e8me venait du flux lui-m\u00eame. Apr\u00e8s avoir adapt\u00e9 notre utilisation du flux pour l'aluminium, nous avons constat\u00e9 une am\u00e9lioration imm\u00e9diate et constante. \u201d<\/p>\n<p data-start=\"2214\" data-end=\"2386\"><strong data-start=\"2396\" data-end=\"2413\">\ud83d\udc49<\/strong>Dans ce cas pr\u00e9cis, les gains de performance ne sont pas dus \u00e0 un changement de mat\u00e9riaux, mais \u00e0 l'optimisation de la mani\u00e8re dont le flux d'aluminium a \u00e9t\u00e9 appliqu\u00e9 dans des conditions r\u00e9elles de production.<\/p>\n<h2 data-start=\"2148\" data-end=\"2207\">Le flux pour aluminium peut-il \u00eatre utilis\u00e9 pour diff\u00e9rents alliages d'aluminium ?<\/h2>\n<p data-start=\"2209\" data-end=\"2328\">Les diff\u00e9rents alliages d'aluminium r\u00e9agissent diff\u00e9remment au traitement au flux, ce qui a une incidence directe sur la mani\u00e8re dont le flux pour l'aluminium doit \u00eatre utilis\u00e9.<\/p>\n<h3 data-start=\"2330\" data-end=\"2362\">Consid\u00e9rations g\u00e9n\u00e9rales relatives aux alliages :<\/h3>\n<ul data-start=\"2364\" data-end=\"2650\">\n<li data-start=\"2364\" data-end=\"2465\"><strong data-start=\"2366\" data-end=\"2399\">Alliages d'aluminium moul\u00e9s (Al-Si) :<\/strong><br data-start=\"2399\" data-end=\"2402\" \/>N\u00e9cessite un enl\u00e8vement plus intensif des scories en raison d'une formation d'oxyde plus importante<\/li>\n<li data-start=\"2467\" data-end=\"2573\"><strong data-start=\"2469\" data-end=\"2497\">Alliages d'aluminium forg\u00e9s :<\/strong><br data-start=\"2497\" data-end=\"2500\" \/>Plus sensibles \u00e0 la contamination, ce qui n\u00e9cessite des proc\u00e9d\u00e9s de raffinage plus propres<\/li>\n<li data-start=\"2575\" data-end=\"2650\"><strong data-start=\"2577\" data-end=\"2599\">Aluminium recycl\u00e9 :<\/strong><br data-start=\"2599\" data-end=\"2602\" \/>N\u00e9cessite un dosage plus \u00e9lev\u00e9 et plusieurs \u00e9tapes de flux<\/li>\n<\/ul>\n<h3 data-start=\"2652\" data-end=\"2681\">Recommandation pratique :<\/h3>\n<p data-start=\"2683\" data-end=\"2740\">Lorsque l'on travaille avec des mat\u00e9riaux mixtes ou recycl\u00e9s, il convient de combiner :<\/p>\n<ul data-start=\"2742\" data-end=\"2802\">\n<li data-start=\"2742\" data-end=\"2764\">Flux d'\u00e9limination des oxydes<\/li>\n<li data-start=\"2765\" data-end=\"2782\">Flux de raffinage<\/li>\n<li data-start=\"2783\" data-end=\"2802\">Flux de d\u00e9carburation<\/li>\n<\/ul>\n<p data-start=\"2804\" data-end=\"2853\">est souvent plus efficace que d'utiliser un seul type.<\/p>\n<p data-start=\"2855\" data-end=\"2958\">\ud83d\udc49 Cette approche en plusieurs \u00e9tapes est largement utilis\u00e9e dans la fusion industrielle de l'aluminium afin de trouver un juste \u00e9quilibre entre co\u00fbt et qualit\u00e9.<\/p>\n<h2>Comment choisir la bonne strat\u00e9gie d'application du flux ?<\/h2>\n<p data-start=\"5084\" data-end=\"5121\">Le choix de la m\u00e9thode appropri\u00e9e d\u00e9pend des \u00e9l\u00e9ments suivants :<\/p>\n<ul data-start=\"5123\" data-end=\"5214\">\n<li data-start=\"5123\" data-end=\"5147\">Qualit\u00e9 des mati\u00e8res premi\u00e8res<\/li>\n<li data-start=\"5148\" data-end=\"5164\">Type de four<\/li>\n<li data-start=\"5165\" data-end=\"5185\">\u00c9chelle de production<\/li>\n<li data-start=\"5186\" data-end=\"5214\">Qualit\u00e9 de moulage requise<\/li>\n<\/ul>\n<p data-start=\"5216\" data-end=\"5334\">\ud83d\udc49 Le facteur le plus important n'est pas seulement le type de flux que vous utilisez, mais <strong data-start=\"5281\" data-end=\"5333\">Comment utiliser correctement le flux \u00e0 base d'aluminium \u00e0 chaque \u00e9tape<\/strong>.<\/p>\n<p data-start=\"5336\" data-end=\"5477\">\ud83d\udc49 Si votre proc\u00e9d\u00e9 n\u00e9cessite un meilleur taux de r\u00e9cup\u00e9ration, une r\u00e9duction des scories ou une utilisation optimis\u00e9e du flux,<\/p>\n<p data-start=\"5336\" data-end=\"5477\">vous pouvez<strong> <a href=\"https:\/\/web.whatsapp.com\/send?phone=8617344611163&amp;text=\" target=\"_blank\" rel=\"noopener\"><span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;nous contacter&nbsp;<\/span> pour un<span class=\"su-highlight\" style=\"background:#eccb42;color:#000000\">&nbsp;devis gratuit&nbsp;<\/span> et une assistance technique.<\/a><\/strong><\/p>\n<h3 data-start=\"5336\" data-end=\"5477\">Vous souhaitez d\u00e9couvrir les performances du flux \u00e0 base d'aluminium en conditions r\u00e9elles de production ?<\/h3>\n<p data-start=\"5336\" data-end=\"5477\">La vid\u00e9o suivante pr\u00e9sente une d\u00e9monstration pratique de l'application d'un flux \u00e0 base d'aluminium et de son effet sur la propret\u00e9 de la masse fondue et l'\u00e9limination des scories.<\/p>\n<p data-start=\"5336\" data-end=\"5477\"><iframe loading=\"lazy\" title=\"Lecteur vid\u00e9o YouTube\" src=\"https:\/\/www.youtube.com\/embed\/pHjnrU6cR2Y?si=leUBMhuEv-3gdRZu\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h2>Pourquoi il est plus important de savoir comment utiliser un flux \u00e0 base d'aluminium que le flux lui-m\u00eame<\/h2>\n<p data-start=\"5579\" data-end=\"5611\">D'apr\u00e8s une exp\u00e9rience concr\u00e8te en production :<\/p>\n<p data-start=\"5613\" data-end=\"5708\">\ud83d\udc49 Un m\u00eame flux d'aluminium peut donner des r\u00e9sultats totalement diff\u00e9rents selon la mani\u00e8re dont il est utilis\u00e9.<\/p>\n<p data-start=\"5710\" data-end=\"5736\">Les op\u00e9rateurs qui adoptent des normes :<\/p>\n<ul data-start=\"5738\" data-end=\"5805\">\n<li data-start=\"5738\" data-end=\"5760\">Calendrier de d\u00e9p\u00f4t des candidatures<\/li>\n<li data-start=\"5761\" data-end=\"5784\">Mode de distribution<\/li>\n<li data-start=\"5785\" data-end=\"5805\">Contr\u00f4le des r\u00e9actions<\/li>\n<\/ul>\n<p data-start=\"5807\" data-end=\"5828\">r\u00e9ussir syst\u00e9matiquement \u00e0 :<\/p>\n<ul data-start=\"5830\" data-end=\"5882\">\n<li data-start=\"5830\" data-end=\"5846\">Fusion plus propre<\/li>\n<li data-start=\"5847\" data-end=\"5862\">R\u00e9duire les scories<\/li>\n<li data-start=\"5863\" data-end=\"5882\">Meilleur taux de r\u00e9cup\u00e9ration<\/li>\n<\/ul>\n<p data-start=\"5884\" data-end=\"5956\">\ud83d\udc49 Conseils : Dans la fusion de l'aluminium, le contr\u00f4le du processus prime toujours sur le choix des mat\u00e9riaux.<\/p>\n<h2>FAQ<\/h2>\n<details>\n<summary>1. Comment utiliser correctement le flux \u00e0 base d'aluminium ?<\/summary>\n<p>R\u00e9partissez uniform\u00e9ment le flux sur l'aluminium fondu et appliquez-le au bon stade de fusion.<\/p>\n<\/details>\n<details>\n<summary>2. \u00c0 quel moment faut-il ajouter le flux \u00e0 base d'aluminium ?<\/summary>\n<p>\u00c0 diff\u00e9rentes \u00e9tapes : d\u00e9but (nettoyage), milieu (affinage) et fin (d\u00e9carburation).<\/p>\n<\/details>\n<details>\n<summary>3. Quelle quantit\u00e9 de flux \u00e0 base d'aluminium faut-il utiliser ?<\/summary>\n<p>G\u00e9n\u00e9ralement entre 0,2% et 1,0%, selon le type de flux et les conditions.<\/p>\n<\/details>\n<details>\n<summary>4. Le flux \u00e0 base d'aluminium permet-il de r\u00e9duire les pertes de m\u00e9tal ?<\/summary>\n<p>Oui, les flux de d\u00e9sscorification, en particulier, permettent de r\u00e9cup\u00e9rer l'aluminium pi\u00e9g\u00e9 dans les scories.<\/p>\n<\/details>\n<details>\n<summary>5. Faut-il remuer apr\u00e8s avoir ajout\u00e9 le fondant ?<\/summary>\n<p>Il est recommand\u00e9 de se limiter \u00e0 une agitation contr\u00f4l\u00e9e. Une agitation excessive favorise l'oxydation.<\/p>\n<\/details>\n<details>\n<summary>6. Que se passe-t-il si l'on utilise trop de flux ?<\/summary>\n<p>Cela augmente les co\u00fbts et peut nuire \u00e0 la puret\u00e9 de la masse fondue.<\/p>\n<\/details>\n<details>\n<summary>7. Peut-on ajouter du flux avant la fusion de l'aluminium ?<\/summary>\n<p>Non. Le flux doit \u00eatre ajout\u00e9 lorsque l'aluminium est en fusion ou partiellement en fusion.<\/p>\n<\/details>\n<details>\n<summary>8. Combien de temps le flux doit-il agir ?<\/summary>\n<p>En g\u00e9n\u00e9ral, entre 5 et 10 minutes.<\/p>\n<\/details>\n<details>\n<summary>9. Comment savoir si le flux fonctionne ?<\/summary>\n<p>Les scories deviennent s\u00e8ches, friables et contiennent moins de m\u00e9tal.<\/p>\n<\/details>\n<details>\n<summary>10. Quelle est la plus grande erreur \u00e0 \u00e9viter lors de l'utilisation d'un flux \u00e0 base d'aluminium ?<\/summary>\n<p>C'est la m\u00e9thode d'application qui n'est pas adapt\u00e9e, pas le mat\u00e9riau lui-m\u00eame.<\/p>\n<\/details>\n<div class=\"notranslate\" style=\"all: initial;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>How to Use Aluminum Flux: Step-by-Step Guide for Cleaner Melt and Higher Metal Recovery Understanding how to use aluminum flux correctly is one of the&hellip;<\/p>","protected":false},"author":1,"featured_media":3586,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120,138],"tags":[122,4290,4331,4336,4357,4356,4353,135,123],"class_list":["post-3585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes","category-seo","tag-aluminum-casting-flux","tag-aluminum-degassing-flux","tag-aluminum-flux","tag-aluminum-flux-powder","tag-cover-flux","tag-cover-flux-for-aluminium","tag-drossing-flux","tag-drossing-flux-for-aluminum","tag-refining-flux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Use Aluminum Flux: Step-by-Step Guide to Reduce Dross &amp; Improve Melt Quality<\/title>\n<meta name=\"description\" content=\"Learn how to use aluminum flux correctly with step-by-step methods to reduce dross, 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