{"id":6274,"date":"2020-11-06T07:02:38","date_gmt":"2020-11-06T07:02:38","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6274"},"modified":"2020-11-06T07:02:38","modified_gmt":"2020-11-06T07:02:38","slug":"trough-type-distributor","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/trough-type-distributor\/","title":{"rendered":"Distribuidor do tipo calha"},"content":{"rendered":"<p>O sistema de fundi\u00e7\u00e3o com topo quente de n\u00edvel uniforme utiliza um sistema de alimenta\u00e7\u00e3o unificado e um distribuidor do tipo calha para conectar v\u00e1rios moldes de topo quente. Isso faz com que o n\u00edvel do metal l\u00edquido em cada molde de todo o conjunto de placas de fundi\u00e7\u00e3o fique no mesmo n\u00edvel, uma vez que o alum\u00ednio l\u00edquido filtrado se encontra no mesmo n\u00edvel em todo o conjunto de placas de fundi\u00e7\u00e3o. O alum\u00ednio l\u00edquido flui sob a pel\u00edcula de \u00f3xido de alum\u00ednio formada inicialmente, o que evita a polui\u00e7\u00e3o secund\u00e1ria e a oxida\u00e7\u00e3o do metal.<\/p>\n<p>Ao mesmo tempo, para aproveitar ao m\u00e1ximo o plano horizontal, o cristalizador pode ser projetado como um cristalizador curto com disposi\u00e7\u00e3o densa, a fim de permitir a fundi\u00e7\u00e3o com m\u00faltiplas hastes.<\/p>\n<p>Devido \u00e0 grande quantidade de alum\u00ednio fundido, h\u00e1 menor dissipa\u00e7\u00e3o de calor ao longo do percurso, o que pode reduzir a temperatura de fundi\u00e7\u00e3o. Isso aumenta o sub-resfriamento dos cristais, eleva a taxa de nuclea\u00e7\u00e3o espont\u00e2nea e promove o refinamento dos gr\u00e3os cristalinos. Aliado \u00e0s caracter\u00edsticas inerentes do molde curto, a altura efetiva de cristaliza\u00e7\u00e3o do alum\u00ednio fundido no molde \u00e9 menor do que na fundi\u00e7\u00e3o comum com topo quente; a profundidade da cavidade l\u00edquida \u00e9 menor; a camada de segrega\u00e7\u00e3o da barra fundida \u00e9 mais fina; os gr\u00e3os cristalinos s\u00e3o mais uniformes; e a apar\u00eancia \u00e9 mais lisa.<\/p>\n<p>O equipamento distribuidor do tipo calha adota um montagem integrada, ou seja, a plataforma de fundi\u00e7\u00e3o e a base do acionador s\u00e3o posicionadas e combinadas previamente e, em seguida, instaladas no chassi da m\u00e1quina de fundi\u00e7\u00e3o e no mecanismo de inclina\u00e7\u00e3o, sendo utilizadas com um elevador por cabo de a\u00e7o ou por coluna-guia hidr\u00e1ulica.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6275\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor.jpg\" alt=\"Distribuidor do tipo calha\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Trough-Type-Distributor-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><strong>Vantagens do distribuidor do tipo calha<\/strong><\/p>\n<ul>\n<li>A abertura de fluxo da placa divisora superior da matriz apresenta um design trapezoidal, o que permite reduzir o fen\u00f4meno de ac\u00famulo de alum\u00ednio durante o processo de fundi\u00e7\u00e3o, aumentando assim a vida \u00fatil da placa divisora.<\/li>\n<li>A placa superior da matriz adota um projeto integrado do tubo-guia de fluxo e da placa adaptadora para evitar o fen\u00f4meno de alumina\u00e7\u00e3o e o arranh\u00e3o na superf\u00edcie da haste de alum\u00ednio, ao mesmo tempo em que reduz o custo das pe\u00e7as de desgaste.<\/li>\n<li>Adotando um sistema de resfriamento por circula\u00e7\u00e3o interna uniforme de \u00e1gua, o <a href=\"http:\/\/www.alalloycasting.com\/pt\/distributing-launder\/\">canal de distribui\u00e7\u00e3o<\/a> e principal <a href=\"http:\/\/www.alalloycasting.com\/pt\/troughs-and-launders\/\">calha<\/a> apresentam boa reten\u00e7\u00e3o de calor, a varia\u00e7\u00e3o do n\u00edvel do l\u00edquido \u00e9 pequena durante o processo de fundi\u00e7\u00e3o e n\u00e3o tendem a transportar esc\u00f3ria.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>The same level hot top casting system uses a unified flow supply and trough-type distributor to connect multiple hot top molds. Make the metal liquid&hellip;<\/p>","protected":false},"author":1,"featured_media":6276,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-6274","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trough-Type Distributor for Hot Top Casting System<\/title>\n<meta name=\"description\" content=\"Trough-Type Distributor makes the metal liquid level in each mold in the whole set of casting plate to be at the same level.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/pt\/trough-type-distributor\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" 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