{"id":560,"date":"2019-02-05T00:12:31","date_gmt":"2019-02-04T21:12:31","guid":{"rendered":"https:\/\/metallsmaster.ru\/?p=560"},"modified":"2020-11-02T11:41:50","modified_gmt":"2020-11-02T08:41:50","slug":"stykovaya-svarka","status":"publish","type":"post","link":"https:\/\/metallsmaster.pro\/pt\/soldagem-de-topo-2\/","title":{"rendered":"Soldagem de topo"},"content":{"rendered":"<p><strong>Soldagem de topo <\/strong>Este \u00e9 um tipo de soldagem por resist\u00eancia que utiliza calor e press\u00e3o para conectar as superf\u00edcies a serem unidas. O efeito t\u00e9rmico de uma corrente el\u00e9trica aquece fortemente a superf\u00edcie met\u00e1lica, fazendo com que as superf\u00edcies sejam pressionadas uma contra a outra, formando uma forte liga\u00e7\u00e3o no n\u00edvel interat\u00f4mico. Este m\u00e9todo de soldagem surgiu h\u00e1 mais de 100 anos. Um exemplo espec\u00edfico desse tipo de conex\u00e3o \u00e9 a soldagem de topo com capacitor. <strong>Soldagem de topo <\/strong>\u00c9 usado em tubula\u00e7\u00f5es, em trabalhos de reparo onde \u00e9 necess\u00e1rio soldar tubos roscados a um tubo de perfura\u00e7\u00e3o, etc.<\/p>\n<h2>Tecnologia de soldagem de topo<\/h2>\n<p><strong>\n\t<!--<div class='top-banner-pages'>\t\n\n\t<\/div>--->\n\t<\/strong><\/p>\n<p><strong>Tecnologia de soldagem de topo \u00a0<\/strong>envolve aquecimento intenso da superf\u00edcie a ser soldada e a\u00e7\u00e3o mec\u00e2nica na pe\u00e7a para obter uma junta soldada. Os requisitos s\u00e3o <strong>tecnologia de soldagem de topo \u00a0<\/strong>foi bem-sucedido, inclui:<\/p>\n<ul>\n<li>Prepara\u00e7\u00e3o cuidadosa das extremidades da superf\u00edcie met\u00e1lica. Elas devem ser encaixadas o mais uniformemente poss\u00edvel. Isso garantir\u00e1 uma junta forte. A remo\u00e7\u00e3o de contaminantes e \u00f3xidos da superf\u00edcie tamb\u00e9m melhora a qualidade da solda. Isso \u00e9 especialmente importante quando a \u00e1rea da superf\u00edcie \u00e9 de 200 mil\u00edmetros quadrados;<\/li>\n<li>fixa\u00e7\u00e3o das pe\u00e7as a serem soldadas em uma m\u00e1quina de solda, definindo seu alinhamento;<\/li>\n<li>passando uma corrente el\u00e9trica de alta frequ\u00eancia, que aquece e derrete as superf\u00edcies a serem unidas;<\/li>\n<li>compress\u00e3o mec\u00e2nica de pe\u00e7as de trabalho, que resulta em deforma\u00e7\u00e3o pl\u00e1stica, destrui\u00e7\u00e3o de \u00f3xidos restantes e liga\u00e7\u00e3o at\u00f4mica de duas superf\u00edcies;<\/li>\n<li>o processo de cristaliza\u00e7\u00e3o e forma\u00e7\u00e3o da rede cristalina da junta soldada.<\/li>\n<\/ul>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-561 aligncenter\" src=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-\u0444\u043e\u0442\u043e.webp\" alt=\"\" width=\"363\" height=\"257\" srcset=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-\u0444\u043e\u0442\u043e.webp 363w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-\u0444\u043e\u0442\u043e-300x212.webp 300w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-\u0444\u043e\u0442\u043e-254x180.webp 254w\" sizes=\"auto, (max-width: 363px) 100vw, 363px\" \/><\/strong><\/p>\n<p>Tal <strong>tecnologia de soldagem de topo \u00a0<\/strong>Permite conectar pe\u00e7as para diferentes finalidades. A qualidade da conex\u00e3o garante longa vida \u00fatil.<\/p>\n<h3>M\u00e9todos de soldagem de topo<\/h3>\n<p>Sobre <strong>m\u00e9todos de soldagem de topo \u00a0<\/strong>influ\u00eancia:<\/p>\n<ul>\n<li>grau do metal a ser soldado, sua composi\u00e7\u00e3o;<\/li>\n<li>qual \u00e9 a \u00e1rea da se\u00e7\u00e3o transversal na jun\u00e7\u00e3o met\u00e1lica;<\/li>\n<li>Quais s\u00e3o os requisitos para a qualidade de uma junta soldada?<\/li>\n<\/ul>\n\n<!---<div class='top-banner-pages'>\n\n<\/div>-->\n\n\t\n<p>O primeiro m\u00e9todo \u00e9 a soldagem por resist\u00eancia.<\/p>\n<p>\u00c9 utilizado para unir componentes com se\u00e7\u00e3o transversal de at\u00e9 200 mil\u00edmetros quadrados. Para isso, os componentes s\u00e3o fixados com seguran\u00e7a em grampos especiais da m\u00e1quina de solda. As superf\u00edcies a serem soldadas s\u00e3o pressionadas firmemente uma contra a outra. Uma corrente el\u00e9trica de 1.000 a 10.000 A \u00e9 ent\u00e3o passada atrav\u00e9s do componente. A temperatura de aquecimento nas extremidades do componente \u00e9 inferior ao ponto de fus\u00e3o do metal. Ap\u00f3s o aquecimento, os componentes s\u00e3o comprimidos enquanto a corrente \u00e9 desligada. A soldagem por resist\u00eancia \u00e9 utilizada para unir barras e tubos de a\u00e7o de baixo carbono de pequenas se\u00e7\u00f5es, bem como arames.<\/p>\n<p>O segundo m\u00e9todo \u00e9 a soldagem por fus\u00e3o.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-562 alignleft\" src=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430.webp\" alt=\"\" width=\"556\" height=\"300\" srcset=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430.webp 556w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-300x162.webp 300w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0421\u0442\u044b\u043a\u043e\u0432\u0430\u044f-\u0441\u0432\u0430\u0440\u043a\u0430-254x137.webp 254w\" sizes=\"auto, (max-width: 556px) 100vw, 556px\" \/>O processo de soldagem deste m\u00e9todo \u00e9 semelhante ao do primeiro m\u00e9todo. No entanto, neste m\u00e9todo, a corrente \u00e9 aplicada primeiro, seguida pela uni\u00e3o das pe\u00e7as. Apenas uma das pe\u00e7as \u00e9 movida em baixa velocidade. A temperatura m\u00e9dia de fus\u00e3o aumenta gradualmente, resultando em uma camada uniforme de metal fundido. Este m\u00e9todo pode ser cont\u00ednuo ou intermitente. A se\u00e7\u00e3o transversal da pe\u00e7a unida pode atingir 100.000 mil\u00edmetros quadrados. As pe\u00e7as soldadas desta forma incluem rodas, an\u00e9is, tubos, trilhos, etc.<\/p>\n<p>Tal <strong>m\u00e9todos de soldagem de topo \u00a0<\/strong>permitem expandir a gama de materiais sold\u00e1veis.<\/p>\n<h4>Soldagem de topo de metal<\/h4>\n<p><strong>Soldagem de topo de metal \u00a0<\/strong>\u00c9 um m\u00e9todo pr\u00e1tico para unir trilhos ferrovi\u00e1rios sem emendas. Permite a produ\u00e7\u00e3o de pe\u00e7as longas em a\u00e7o, metais n\u00e3o ferrosos e suas ligas. <strong>Soldagem de topo de metal <\/strong>\u00c9 usado na fabrica\u00e7\u00e3o de correntes de ancoragem, ferramentas de corte e bobinas para grandes unidades de refrigera\u00e7\u00e3o. No geral, esse m\u00e9todo de soldagem tem uma ampla gama de aplica\u00e7\u00f5es.<\/p>","protected":false},"excerpt":{"rendered":"<p>A soldagem de topo \u00e9 um tipo de soldagem por resist\u00eancia que utiliza calor e press\u00e3o para criar uma superf\u00edcie de uni\u00e3o. O calor\u2026<\/p>","protected":false},"author":1,"featured_media":561,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-svarka-metallov"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0441\u0442\u044b\u043a\u043e\u0432\u043e\u0439 \u0441\u0432\u0430\u0440\u043a\u0438, \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438, \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a \u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" 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