{"id":5915,"date":"2020-09-22T20:09:12","date_gmt":"2020-09-22T20:09:12","guid":{"rendered":"https:\/\/psi-polymersystems.com\/?page_id=5915"},"modified":"2020-09-22T20:15:35","modified_gmt":"2020-09-22T20:15:35","slug":"psi-polymer-systems-inc-leak-free-screen-changer-for-extrusion-coating-applications-conover-nc-august-29-2016","status":"publish","type":"page","link":"https:\/\/www.psi-polymersystems.com\/es\/about-us\/press-releases\/psi-polymer-systems-inc-leak-free-screen-changer-for-extrusion-coating-applications-conover-nc-august-29-2016\/","title":{"rendered":"PSI-Polymer Systems Inc. Cambiador de pantalla sin fugas para aplicaciones de recubrimiento por extrusi\u00f3n Conover, NC (29 de agosto de 2016)"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"5915\" class=\"elementor elementor-5915\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2dde7e49 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2dde7e49\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3b19eb0b\" data-id=\"3b19eb0b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27870eb1 elementor-widget elementor-widget-heading\" data-id=\"27870eb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PSI-Polymer Systems, Inc. Cambiador de pantalla sin fugas para aplicaciones de recubrimiento por extrusi\u00f3n Conover, NC (29 de agosto de 2016) <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d60a72f elementor-widget elementor-widget-text-editor\" data-id=\"4d60a72f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>PSI-Polymer Systems ha desarrollado y probado con \u00e9xito en el campo un sello de cambiador de pantalla verdaderamente libre de fugas para aplicaciones de recubrimiento por extrusi\u00f3n de alta temperatura y baja viscosidad.<\/p><p>Durante d\u00e9cadas, las aplicaciones de recubrimiento por extrusi\u00f3n a alta temperatura han presentado un desaf\u00edo dif\u00edcil para la tecnolog\u00eda de sello del cambiador de pantalla de placa deslizante para un funcionamiento sin fugas. Los sellos mec\u00e1nicos del cambiador de pantalla utilizan espacios entre el sello y el cuerpo (t\u00edp. 0.001 \u201da 0.0015\u201d radial) para acomodar la remoci\u00f3n y reemplazo. Para aplicaciones de proceso t\u00edpicas, las viscosidades de los pol\u00edmeros son demasiado r\u00edgidas para pasar a trav\u00e9s de estos espacios y las m\u00e1quinas funcionan sin problemas. Sin embargo, las aplicaciones de recubrimiento por extrusi\u00f3n a menudo procesan pol\u00edmeros a temperaturas de 630 grados. F (332 grados C) y m\u00e1s. Estas temperaturas elevadas dan como resultado viscosidades extremadamente bajas que pueden fluir a trav\u00e9s de holguras radiales tan estrechas como 0,0005 \u201d. Para agravar este problema, se encuentra la ubicaci\u00f3n t\u00edpica del cambiador de pantalla sobre el troquel. Cualquier fuga de pol\u00edmero desde esta posici\u00f3n comprometer\u00e1 la banda o, peor a\u00fan, gotear\u00e1 sobre el troquel caliente.<\/p><p>Debido a este problema, la mayor\u00eda de las operaciones de recubrimiento por extrusi\u00f3n utilizan por defecto un filtro de bloque de cartucho que requiere un cambio manual, es de dif\u00edcil acceso y requiere mucha mano de obra.<\/p><p>PSI ha resuelto con \u00e9xito los problemas de fugas del cambiador de pantalla deslizante para el recubrimiento por extrusi\u00f3n a trav\u00e9s de una actualizaci\u00f3n patentada de su sello activado por presi\u00f3n de por vida patentado. El cambio introduce un componente de sello anular conformable y resistente al calor (1200 grados F \/ 650 grados C) que evita que los pol\u00edmeros con viscosidades extremadamente bajas migren alrededor del di\u00e1metro exterior del sello.\u00a0<\/p><p>El primer sistema de cinco capas se vendi\u00f3 en 2015 a una importante empresa de ingenier\u00eda internacional y comenz\u00f3 a operar en Asia. La temperatura de funcionamiento m\u00e1xima t\u00edpica para el LDPE es 630 grados. F (332 grados C). Desde la instalaci\u00f3n, los cambiadores de pantalla se han desempe\u00f1ado sin fugas. \u201cEst\u00e1bamos tan seguros del dise\u00f1o del sello\u201d, informa Don Macnamara, Gerente General de PSI, \u201cque demostramos un desempe\u00f1o sin fugas para un OEM importante al llenar el cambiador de pantalla con aceite hidr\u00e1ulico en lugar de pol\u00edmero. Ni una sola vez, durante la prueba de tres d\u00edas, los sellos se filtraron o filtraron. He estado involucrado con cambiadores de pantalla desde 1983. Este es el primer cambiador de pantalla de placa deslizante que he experimentado que puede funcionar realmente sin fugas en estas condiciones extremas \u201d.<\/p><p>Hasta la fecha, PSI ha suministrado cerca de dos docenas de cambiadores de pantalla m\u00e1s para recubrimientos por extrusi\u00f3n a alta temperatura, todos los cuales funcionan sin fugas en el sello. Los cambiadores de pantalla est\u00e1n disponibles con metalurgia est\u00e1ndar o en acero inoxidable para procesar pol\u00edmeros de recubrimiento por extrusi\u00f3n con propiedades corrosivas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-720e3c4c\" data-id=\"720e3c4c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>PSI-Polymer Systems, Inc. Cambiador de pantalla sin fugas para aplicaciones de recubrimiento por extrusi\u00f3n Conover, NC (29 de agosto de 2016) PSI-Polymer Systems ha desarrollado y probado con \u00e9xito en el campo un sello cambiador de pantalla sin fugas para extrusi\u00f3n de alta temperatura y baja viscosidad aplicaciones de recubrimiento. Durante d\u00e9cadas, las aplicaciones de recubrimiento por extrusi\u00f3n a alta temperatura han presentado un desaf\u00edo dif\u00edcil para deslizar el sello del cambiador de pantalla de placa [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"parent":5833,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-5915","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v25.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PSI-Polymer Systems Inc. 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