{"id":7403,"date":"2005-02-01T04:26:00","date_gmt":"2005-02-01T03:26:00","guid":{"rendered":"https:\/\/www.mdresistor.com\/gridex-t\/"},"modified":"2005-02-01T04:26:00","modified_gmt":"2005-02-01T03:26:00","slug":"gridex-t","status":"publish","type":"post","link":"https:\/\/www.mdresistor.com\/es\/gridex-t\/","title":{"rendered":"GRIDEX-T"},"content":{"rendered":"<p style=\"text-align: center;\"><img decoding=\"async\" style=\"border: 0px;\" title=\"Gridext\" src=\"https:\/\/www.mdresistor.com\/images-docs-blog\/gridext.jpg\" alt=\"Gridext\"><br \/>\n<strong>REJILLAS TEJIDAS<\/strong><\/p>\n<h2>PRESENTACI\u00d3N<\/h2>\n<p style=\"text-align: justify;\">Esta tecnolog\u00eda permite ofrecer <strong>resistencias<\/strong> de <strong>potencia<\/strong> con un alto <strong>valor \u00f3hmico<\/strong> (hasta varios cientos de <strong>ohmios<\/strong> ). Adem\u00e1s, estas resistencias son especialmente adecuadas para aplicaciones que requieren <strong>alta tensi\u00f3n<\/strong> ( <strong>continua<\/strong> y <strong>transitoria<\/strong> ).<\/p>\n<h3>EL ALAMBRE FUERTE<\/h3>\n<p style=\"text-align: justify;\">El di\u00e1metro del alambre de la <strong>tela<\/strong> puede variar de 0,3 a 2 mm. Est\u00e1n disponibles diferentes <strong>aleaciones<\/strong> de serie (desde <strong>Constantan<\/strong> con coeficiente de temperatura cero hasta aleaciones de tipo <strong>acero inoxidable<\/strong> o aleaciones de <strong>hierro-cromo-aluminio<\/strong> ). La distancia P (fig. 1) var\u00eda seg\u00fan la naturaleza y el di\u00e1metro del alambre y generalmente est\u00e1 entre 1 y 5 mm.<\/p>\n<h3>EL HILO DE CADENA<\/h3>\n<p style=\"text-align: justify;\">Se utiliza para mantener la <strong>resistencia del hilo<\/strong> sin alterar el <strong>coeficiente de intercambio de calor<\/strong> . La fibra de <strong>vidrio<\/strong> <strong>Clase E<\/strong> <strong>se<\/strong> ofrece como est\u00e1ndar. Este material tiene las siguientes ventajas:<\/p>\n<ul>\n<li>resistencia a altas temperaturas:\n<ul>\n<li>por encima de 300\u00b0C en servicio continuo<\/li>\n<li>por encima de 400\u00b0C en servicio limitado<\/li>\n<\/ul>\n<\/li>\n<li>bajo coeficiente de <strong>dilataci\u00f3n t\u00e9rmica lineal<\/strong> : la longitud de los tejidos var\u00eda muy poco bajo la acci\u00f3n de la temperatura, lo que facilita la <strong>fijaci\u00f3n<\/strong><\/li>\n<li>excelente resistencia a la <strong>tensi\u00f3n<\/strong> de <strong>tracci\u00f3n mec\u00e1nica<\/strong> en caliente<\/li>\n<li>buena resistencia a la contaminaci\u00f3n (a excepci\u00f3n de la contaminaci\u00f3n por fl\u00faor)<\/li>\n<\/ul>\n<p>Se encuentra disponible una amplia gama de materiales (algod\u00f3n, <strong>kevlar<\/strong> , fibra de <strong>s\u00edlice<\/strong> ) para aplicaciones espec\u00edficas.<\/p>\n<h3>DIMENSIONES Y MONTAJE DE ELEMENTOS<\/h3>\n<p style=\"text-align: justify;\">Los tejidos se ofrecen en 2 anchos est\u00e1ndar: 160.250 mm. Sin embargo, la t\u00e9cnica del <strong>tejido<\/strong> permite adaptarse a todas las limitaciones. Las tiras de los extremos se utilizan para asegurar y tambi\u00e9n pueden contribuir al <strong>aislamiento el\u00e9ctrico<\/strong> .<br \/>\nUsualmente usamos dos arreglos diferentes (fig.2). En la mayor\u00eda de los casos, las redes est\u00e1n dispuestas en filas y <strong>conectadas<\/strong> en serie o en paralelo o ambas al mismo tiempo.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.mdresistor.com\/images-docs-blog\/gidextfig1.gif\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" style=\"float: left; margin: 0px; width: 240px;\" title=\"Gidextfig1\" src=\"https:\/\/www.mdresistor.com\/images-docs-blog\/gidextfig1.gif\" alt=\"Gidextfig1\" border=\"0\"> <\/a><br \/>\n<a href=\"https:\/\/www.mdresistor.com\/images-docs-blog\/gidextfig2.gif\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" style=\"float: left; margin: 0px; width: 240px;\" title=\"Gidextfig2\" src=\"https:\/\/www.mdresistor.com\/images-docs-blog\/gidextfig2.gif\" alt=\"Gidextfig2\" border=\"0\"> <\/a><\/p>\n<h2>USOS<\/h2>\n<ul>\n<li><strong>Filtrado<\/strong> de <strong>arm\u00f3nicos<\/strong> de alta <strong>potencia<\/strong> .<\/li>\n<li><strong>Puesta a tierra de alto voltaje<\/strong> <strong>.<\/strong><\/li>\n<li><strong>Descarga<\/strong> de <strong>condensadores<\/strong> de <strong>alta tensi\u00f3n<\/strong> .<\/li>\n<li><strong>Calentamiento<\/strong> por rayos <strong>infrarrojos<\/strong> .<\/li>\n<li>Aplicaciones que requieren un dise\u00f1o mec\u00e1nico espec\u00edfico (caso de peque\u00f1as unidades de <strong>calefacci\u00f3n<\/strong> ).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>REJILLAS TEJIDAS PRESENTACI\u00d3N Esta tecnolog\u00eda permite ofrecer resistencias de potencia con un alto valor \u00f3hmico (hasta varios cientos de ohmios ). Adem\u00e1s, estas resistencias son  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[213],"tags":[],"class_list":["post-7403","post","type-post","status-publish","format-standard","hentry","category-tecnologias-de-resistencia-metal-deploye"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tecnolog\u00edas - Resistencia de despliegue de metal<\/title>\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.mdresistor.com\/es\/gridex-t\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tecnolog\u00edas - Resistencia de despliegue de metal\" \/>\n<meta property=\"og:description\" content=\"REJILLAS TEJIDAS PRESENTACI\u00d3N Esta tecnolog\u00eda permite ofrecer resistencias de potencia con un alto valor \u00f3hmico (hasta varios cientos de ohmios ). 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