{"id":2441,"date":"2024-09-27T12:00:00","date_gmt":"2024-09-27T15:00:00","guid":{"rendered":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/?p=2441"},"modified":"2024-08-21T08:18:52","modified_gmt":"2024-08-21T11:18:52","slug":"protecao-a-corrosao-do-aluminio","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/maquinas-e-equipamentos\/protecao-a-corrosao-do-aluminio\/","title":{"rendered":"Processo de anodiza\u00e7\u00e3o em eletr\u00f3lito livre de cromo VI para alum\u00ednio e suas ligas"},"content":{"rendered":"<p><strong>Panorama tecnol\u00f3gico<br \/>\n<\/strong>A anodiza\u00e7\u00e3o porosa \u00e9 um processo usual de acabamento superficial em ind\u00fastrias que utilizam ligas de alum\u00ednio, tais como a ind\u00fastria aeroespacial e de transporte naval e ferrovi\u00e1rio, entre outras com o objetivo de conferir maior resist\u00eancia \u00e0 corros\u00e3o e, tamb\u00e9m, para aumentar a ades\u00e3o de tintas e colas, visando sempre uma maior durabilidade do material.<\/p>\n<p><strong>Descri\u00e7\u00e3o da tecnologia<br \/>\n<\/strong>A presente inven\u00e7\u00e3o descreve um eletr\u00f3lito para utiliza\u00e7\u00e3o em processo de anodiza\u00e7\u00e3o de alum\u00ednio e suas ligas, em que o eletr\u00f3lito compreende: \u00e1cido sulf\u00farico, \u00e1cido m\u00e1lico e \u00e1gua.<br \/>\nAp\u00f3s a prepara\u00e7\u00e3o do eletr\u00f3lito de anodiza\u00e7\u00e3o, a presente inven\u00e7\u00e3o descreve um processo de oxida\u00e7\u00e3o an\u00f3dica com a utiliza\u00e7\u00e3o do mesmo eletr\u00f3lito, o qual resulta em camadas de \u00f3xido de alta resist\u00eancia \u00e0 corros\u00e3o que poder\u00e3o ser posteriormente seladas.<\/p>\n<p><strong>Problema resolvido<br \/>\n<\/strong><span class=\"TextRun SCXW17550087 BCX0\" lang=\"DE-DE\" xml:lang=\"DE-DE\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW17550087 BCX0\">Processos de anodiza\u00e7\u00e3o com \u00e1cido cr\u00f4mico produzem resultados superiores, mas geram res\u00edduos e efluentes altamente poluentes, enfrentando restri\u00e7\u00f5es cada vez mais severas, ou at\u00e9 proibi\u00e7\u00e3o total de uso. Este invento apresenta um processo alternativo de anodiza\u00e7\u00e3o que reduz o impacto ambiental, ao mesmo tempo em que oferece excelente resist\u00eancia \u00e0 corros\u00e3o.<\/span><\/span><\/p>\n<p><strong>Vantagens<br \/>\n<\/strong>&#8211; N\u00e3o utiliza \u00edons de cromo VI (car\u00e1ter cancer\u00edgeno, mutag\u00eanico e proporciona risco ambiental);<br \/>\n&#8211; Camada plana e compacta;<br \/>\n&#8211; Camada de barreira mais espessa, resultando numa resist\u00eancia contra a corros\u00e3o;<br \/>\n&#8211; Sem perda de ades\u00e3o de tintas e substratos;<br \/>\n&#8211; Aumento da vida \u00fatil e durabilidade.<\/p>\n<p><strong>Aplica\u00e7\u00f5es<br \/>\n<\/strong><span class=\"TextRun SCXW234903943 BCX0\" lang=\"DE-DE\" xml:lang=\"DE-DE\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">A <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">tecnologia<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">descrita<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> neste <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">invento<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">tem<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">aplica\u00e7\u00e3o<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> na <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SpellingErrorHighlight SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">etapa<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> final de <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">fabrica\u00e7\u00e3o<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> de <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">pe\u00e7as<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> de <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">ligas<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> de <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">alum\u00ednio<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">utilizadas<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">em<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> ambientes <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">corrosivos<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">, <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">as<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">quais<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">devem<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">resistir<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">por<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">longo<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> tempo \u00e0 <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">corros\u00e3o<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">, <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">como<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">por<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">exemplo<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">as<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">utilizadas<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">em<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">componentes<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> das <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">ind\u00fastrias<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">aeron\u00e1utica<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">, <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">ferrovi\u00e1ria<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> e <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">naval<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">expostas<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">aos<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">imp\u00e9ries<\/span> <span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">durante<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\"> sua <\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">utiliza\u00e7\u00e3o<\/span><span class=\"NormalTextRun SCXW234903943 BCX0\" data-ccp-parastyle=\"Body Text Indent\">.<\/span><\/span><span class=\"EOP SCXW234903943 BCX0\" data-ccp-props=\"{&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:0,&quot;335559731&quot;:0,&quot;335559991&quot;:720}\">&nbsp;<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Processo de anodiza\u00e7\u00e3o dupla - Vitrine Tecnol\u00f3gica\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/J739L5Sv_Ek?list=PLklsKOZKT_FvksR2nZ07vMvXfFVq6UIOu\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><strong><br \/>\nN\u00edvel de maturidade da tecnologia (TRL \u2013 Technology Readiness Level)<\/strong><strong><br \/>\n<img loading=\"lazy\" class=\"wp-image-7755\" src=\"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-content\/uploads\/2024\/07\/image-1.png\" sizes=\"(max-width: 960px) 100vw, 960px\" srcset=\"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-content\/uploads\/2024\/07\/image-1.png 960w, https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-content\/uploads\/2024\/07\/image-1-595x77.png 595w, https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-content\/uploads\/2024\/07\/image-1-768x99.png 768w, https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-content\/uploads\/2024\/07\/image-1-347x45.png 347w\" alt=\"\" width=\"960\" height=\"124\"><\/strong>Consulte o TRL atualizado dessa tecnologia diretamente com a equipe respons\u00e1vel pela Vitrine Tecnol\u00f3gica. Acesse o nosso&nbsp;<a href=\"https:\/\/www.ufrgs.br\/vitrinetecnologica\/contato\/\" target=\"_blank\" rel=\"noreferrer noopener\">Fale Conosco<\/a>!<strong><br \/>\n<\/strong><\/p>\n<p><strong>Status e oportunidade<\/strong><br \/>\nPatente publicada pelo INPI sob n\u00b0 do pedido BR 10 2017 008478-7.<\/p>\n<p>A patente pode ser encontrada na \u00edntegra no Lume pelo&nbsp;<a href=\"https:\/\/lume.ufrgs.br\/handle\/10183\/186047\" target=\"_blank\" rel=\"noopener\">link<\/a>.<\/p>\n<p><strong>Inventores<br \/>\n<\/strong><a href=\"http:\/\/lattes.cnpq.br\/4223608133583703\" target=\"_blank\" rel=\"noopener noreferrer\">Gerhard Hans&nbsp;Kn\u00f6rnschild<br \/>\n<\/a><a href=\"http:\/\/lattes.cnpq.br\/7377307605232309\" target=\"_blank\" rel=\"noopener\">Luis Frederico Pinheiro Dick<\/a><br \/>\n<a href=\"http:\/\/lattes.cnpq.br\/1935029824414408\">Tiago Vignoli Machado<\/a><br \/>\n<a href=\"http:\/\/lattes.cnpq.br\/9707367749969029\">Pedro Atz Dick<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":8020,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false},"categories":[15,16,451],"tags":[457,454,452,348,455,351,345,352,402,456,344,458,453,355],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/posts\/2441"}],"collection":[{"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/comments?post=2441"}],"version-history":[{"count":28,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/posts\/2441\/revisions"}],"predecessor-version":[{"id":8035,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/posts\/2441\/revisions\/8035"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/media\/8020"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/media?parent=2441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/categories?post=2441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/vitrinetecnologica\/wp-json\/wp\/v2\/tags?post=2441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}