{"id":1186,"date":"2020-04-17T06:55:50","date_gmt":"2020-04-17T06:55:50","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=1186"},"modified":"2020-08-28T06:52:04","modified_gmt":"2020-08-28T06:52:04","slug":"aluminum-purification-technology","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-purification-technology\/","title":{"rendered":"Tecnologia de purifica\u00e7\u00e3o de alum\u00ednio"},"content":{"rendered":"<p>O uso de pe\u00e7as fundidas de liga de alum\u00ednio est\u00e1 aumentando, e os requisitos para essas pe\u00e7as est\u00e3o se tornando cada vez mais exigentes. Al\u00e9m de garantir a composi\u00e7\u00e3o qu\u00edmica, as propriedades mec\u00e2nicas e a precis\u00e3o dimensional, as pe\u00e7as fundidas de liga de alum\u00ednio n\u00e3o podem apresentar defeitos de fundi\u00e7\u00e3o, como poros de contra\u00e7\u00e3o, poros de ar e poros de esc\u00f3ria. A tecnologia de purifica\u00e7\u00e3o do alum\u00ednio consiste em um tratamento abrangente que inclui purifica\u00e7\u00e3o e refinamento de gr\u00e3os, o que permite obter ligas de alum\u00ednio de alta qualidade. O <a href=\"https:\/\/www.alalloycasting.com\/pt\/refining-flux\/\">efeito refinador<\/a> O estado do alum\u00ednio l\u00edquido exerce uma influ\u00eancia importante na forma\u00e7\u00e3o de poros, buracos de retra\u00e7\u00e3o e inclus\u00f5es, e afeta diretamente as propriedades f\u00edsicas e mec\u00e2nicas das pe\u00e7as fundidas de liga de alum\u00ednio.<\/p>\n<h2>Tecnologia de purifica\u00e7\u00e3o de alum\u00ednio l\u00edquido<\/h2>\n<p><a href=\"https:\/\/www.alalloycasting.com\/pt\/molten-aluminum-purifying-units\/\">Tratamento de purifica\u00e7\u00e3o de alum\u00ednio l\u00edquido<\/a> pode ser dividida em tecnologia de purifica\u00e7\u00e3o por adsor\u00e7\u00e3o e tecnologia de purifica\u00e7\u00e3o sem adsor\u00e7\u00e3o, de acordo com o mecanismo de purifica\u00e7\u00e3o. A tecnologia de purifica\u00e7\u00e3o do alum\u00ednio \u00e9 um tratamento abrangente que combina purifica\u00e7\u00e3o e refinamento de gr\u00e3os, permitindo a obten\u00e7\u00e3o de ligas de alum\u00ednio de alta qualidade.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4281\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-1.jpg\" alt=\"Tecnologia de purifica\u00e7\u00e3o de alum\u00ednio\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h2>Purifica\u00e7\u00e3o por adsor\u00e7\u00e3o<\/h2>\n<p>A purifica\u00e7\u00e3o por adsor\u00e7\u00e3o baseia-se principalmente na adsor\u00e7\u00e3o das inclus\u00f5es oxidadas produzidas pelo agente refinador e, ao mesmo tempo, remove essas inclus\u00f5es oxidadas e o hidrog\u00eanio ligado \u00e0 superf\u00edcie para atingir o objetivo de purificar o alum\u00ednio l\u00edquido. A purifica\u00e7\u00e3o n\u00e3o por adsor\u00e7\u00e3o depende de outros efeitos f\u00edsicos e qu\u00edmicos para alcan\u00e7ar o objetivo de purificar o alum\u00ednio l\u00edquido. A purifica\u00e7\u00e3o por adsor\u00e7\u00e3o ocorre apenas na interface de adsor\u00e7\u00e3o, enquanto a purifica\u00e7\u00e3o n\u00e3o por adsor\u00e7\u00e3o atua sobre todo o alum\u00ednio l\u00edquido ao mesmo tempo.<\/p>\n<p>Os m\u00e9todos de adsor\u00e7\u00e3o incluem, principalmente, a purga com g\u00e1s inerte, a purga com g\u00e1s ativo, a purga com g\u00e1s misto, a purifica\u00e7\u00e3o com sal de cloreto e a purifica\u00e7\u00e3o n\u00e3o t\u00f3xica <a href=\"https:\/\/www.alalloycasting.com\/pt\/refining-flux\/\">agente refinador<\/a> purifica\u00e7\u00e3o e purifica\u00e7\u00e3o por m\u00e9todo de solvente. O m\u00e9todo sem adsor\u00e7\u00e3o inclui, principalmente, o m\u00e9todo de tratamento por purifica\u00e7\u00e3o a v\u00e1cuo, o m\u00e9todo de tratamento por purifica\u00e7\u00e3o ultrass\u00f4nica, o m\u00e9todo de tratamento por purifica\u00e7\u00e3o eletromagn\u00e9tica, o m\u00e9todo de cristaliza\u00e7\u00e3o sob press\u00e3o, o m\u00e9todo de fixa\u00e7\u00e3o de hidrog\u00eanio em elementos de terras raras, etc.<\/p>\n<h2>Refino de g\u00e1s misto<\/h2>\n<p>Ao refinar com g\u00e1s cloro na tecnologia de tratamento de purifica\u00e7\u00e3o por adsor\u00e7\u00e3o, o g\u00e1s cloro e o alum\u00ednio l\u00edquido geram tricloreto de alum\u00ednio, e o tricloreto de alum\u00ednio e o hidrog\u00eanio geram cloreto de hidrog\u00eanio, o que causa efeitos tanto f\u00edsicos quanto qu\u00edmicos. O efeito de refino \u00e9 evidente, mas polui o meio ambiente e \u00e9 prejudicial ao corpo humano. Posteriormente, gases inertes (nitrog\u00eanio e arg\u00f4nio) passaram a ser utilizados para a refina\u00e7\u00e3o, chegando-se at\u00e9 a empregar g\u00e1s inerte 99,999%, mas o resultado n\u00e3o foi satisfat\u00f3rio e os custos aumentaram. V\u00e1rios m\u00e9todos s\u00e3o utilizados para aprimorar o processo de refina\u00e7\u00e3o, mas nem sempre se consegue atingir o mesmo efeito da refina\u00e7\u00e3o com cloro.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4282\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-2.jpg\" alt=\"Tecnologia de purifica\u00e7\u00e3o de alum\u00ednio\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-2.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/Aluminum-Purification-Technology-2-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Nos \u00faltimos anos, pa\u00edses estrangeiros adotaram o refinamento com g\u00e1s misto, ou seja, g\u00e1s inerte combinado com g\u00e1s ativo, o que \u00e9 ben\u00e9fico para remover as inclus\u00f5es no interior da liga de alum\u00ednio, ao mesmo tempo em que intensifica a desidrogena\u00e7\u00e3o da massa fundida e forma esc\u00f3ria seca na superf\u00edcie da liga de alum\u00ednio fundida, o que permite obter um bom efeito de refinamento. Al\u00e9m disso, permite controlar facilmente a quantidade de g\u00e1s cloro misturada e tem pouco impacto sobre o meio ambiente.<\/p>\n<p>Na tecnologia de purifica\u00e7\u00e3o por adsor\u00e7\u00e3o, por meio da inova\u00e7\u00e3o e da transforma\u00e7\u00e3o de processos, tamb\u00e9m foram desenvolvidos diversos m\u00e9todos pr\u00e1ticos de tratamento de alum\u00ednio l\u00edquido: tais como a desgaseifica\u00e7\u00e3o rotativa com g\u00e1s inerte, a filtra\u00e7\u00e3o com cer\u00e2mica espumosa, o tratamento por pulveriza\u00e7\u00e3o de p\u00f3 e a combina\u00e7\u00e3o de desgaseifica\u00e7\u00e3o rotativa com pulveriza\u00e7\u00e3o de p\u00f3. M\u00faltiplos m\u00e9todos. Na tecnologia de purifica\u00e7\u00e3o sem adsor\u00e7\u00e3o, o m\u00e9todo de fixa\u00e7\u00e3o de hidrog\u00eanio por elementos de terras raras tamb\u00e9m \u00e9 uma das dire\u00e7\u00f5es de desenvolvimento futuro.<\/p>","protected":false},"excerpt":{"rendered":"<p>The use of aluminum alloy castings is increasing, and the requirements for castings are becoming higher and higher. In addition to ensuring chemical composition, mechanical&hellip;<\/p>","protected":false},"author":1,"featured_media":4280,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233,138],"tags":[38,1186,1185,1179,1169,1183,1157,1165,1180,1170,1182,1181,1173,1172,1171,1178,1184,1158,1152,1151,1155,1164,1156,1174,1176,1159,1175,1161,1168,1167,1166,1160,1150,1153,1177,1162,1163],"class_list":["post-1186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-seo","tag-aluminum-purification-technology","tag-aluminum-purification-technology-aluminium-casting-company","tag-aluminum-purification-technology-aluminium-die-casting-companies","tag-aluminum-purification-technology-aluminium-gravity-die-casting","tag-aluminum-purification-technology-aluminium-hot-top","tag-aluminum-purification-technology-aluminium-investment-casting","tag-aluminum-purification-technology-aluminium-strip","tag-aluminum-purification-technology-aluminum-billet-casting","tag-aluminum-purification-technology-aluminum-can-foundry","tag-aluminum-purification-technology-aluminum-casting-companies","tag-aluminum-purification-technology-aluminum-casting-equipment","tag-aluminum-purification-technology-aluminum-casting-grain","tag-aluminum-purification-technology-aluminum-casting-near-me","tag-aluminum-purification-technology-aluminum-die-casting-companies","tag-aluminum-purification-technology-aluminum-foundry-near-me","tag-aluminum-purification-technology-aluminum-gravity-casting","tag-aluminum-purification-technology-aluminum-gravity-die-casting","tag-aluminum-purification-technology-aluminum-ingot","tag-aluminum-purification-technology-cast-aluminum","tag-aluminum-purification-technology-castable-refractory","tag-aluminum-purification-technology-ceramic-insulation","tag-aluminum-purification-technology-ceramic-shell-casting","tag-aluminum-purification-technology-continuous-casting","tag-aluminum-purification-technology-die-casting-companies-near-me","tag-aluminum-purification-technology-electric-aluminum-foundry","tag-aluminum-purification-technology-foundry","tag-aluminum-purification-technology-foundry-aluminum-casting","tag-aluminum-purification-technology-foundry-factory","tag-aluminum-purification-technology-hot-top-aluminium","tag-aluminum-purification-technology-hot-top-cast","tag-aluminum-purification-technology-hot-top-casting","tag-aluminum-purification-technology-metal-foundry","tag-aluminum-purification-technology-metallurgy-company","tag-aluminum-purification-technology-molten-aluminum","tag-aluminum-purification-technology-molten-aluminum-casting","tag-aluminum-purification-technology-shell-casting","tag-aluminum-purification-technology-shell-mould-casting"],"yoast_head":"<!-- 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