{"id":1164,"date":"2014-01-06T16:30:32","date_gmt":"2014-01-06T16:30:32","guid":{"rendered":"http:\/\/coirubber.com\/?page_id=1164"},"modified":"2014-02-19T22:52:13","modified_gmt":"2014-02-19T22:52:13","slug":"transfer-molding-defined","status":"publish","type":"page","link":"https:\/\/coirubber.com\/es\/transfer-molding-defined\/","title":{"rendered":"Moldeo por transferencia Definido"},"content":{"rendered":"<p>Moldeo por transferencia El proceso de moldeo por compresi\u00f3n(BrE moulding) es un m\u00e9todo en el que se mide la cantidad de material de moldeo (generalmente un pl\u00e1stico termoendurecible) y se introduce antes de que se produzca el moldeo. El material de moldeo se calienta previamente y se introduce en una c\u00e1mara conocida como el pozo. A continuaci\u00f3n, se utiliza un \u00e9mbolo para forzar el material desde el pozo a trav\u00e9s de canales conocidos como un sistema de manguito y conducto (sprue and runner system), hasta las cavidades del molde. El molde permanece cerrado mientras se introduce el material y se abre para liberar la pieza del pozo y del conducto. Las paredes del molde se calientan hasta una temperatura por encima del punto de fusi\u00f3n del material del molde; esto permite un flujo m\u00e1s r\u00e1pido del material a trav\u00e9s de las cavidades.<\/p>\n<p>Moldeo por transferencia Este es un proceso automatizado que combina procesos de compresi\u00f3n, moldeo y moldeo por transferencia. Esta combinaci\u00f3n ofrece una buena superficie, estabilidad dimensional y propiedades mec\u00e1nicas, moldeo por compresi\u00f3n moldeo por inyecci\u00f3n as\u00ed como una alta automatizaci\u00f3n y bajo coste moldeo por transferencia. Moldeo por transferencia Este sistema tiene un dispositivo parecido a un pist\u00f3n y cilindro incorporado en el molde, de manera que el caucho se inyecta en la cavidad a trav\u00e9s de peque\u00f1os orificios. Se coloca una pieza de caucho no curado en una parte del molde de transferencia llamada \u201cpot\u201d. El molde se cierra y bajo presi\u00f3n hidr\u00e1ulica el caucho o pl\u00e1stico se fuerza a trav\u00e9s de un peque\u00f1o orificio (la \u201cpuerta\u201d) hacia la cavidad. El molde se mantiene cerrado mientras el caucho o pl\u00e1stico se cura. Se eleva el \u00e9mbolo y se puede extraer y desechar el material del \u201ctap\u00f3n de transferencia\u201d. Se abre el molde de transferencia y se puede extraer la pieza. Es posible que el flash y la puerta de entrada necesiten ser recortados. Otra cuesti\u00f3n importante es que se puede colocar una cantidad predeterminada de pl\u00e1stico termoendurecible en polvo, preforma e incluso en forma granular en la c\u00e1mara de calentamiento.<\/p>\n<p>Los moldes, tanto en la compresi\u00f3n como en la extrusi\u00f3n, moldeo por transferencia permanecen cerrados hasta que la reacci\u00f3n de curado dentro del material haya finalizado. Los clavos de expulsi\u00f3n suelen incorporarse al dise\u00f1o de la herramienta de moldeo y se utilizan para empujar la pieza fuera del molde una vez que se ha endurecido. Este tipo de moldeo es ideal para series de producci\u00f3n en masa, ya que tiene ciclos de producci\u00f3n cortos. Adem\u00e1s Moldeo por transferencia, a diferencia moldeo por compresi\u00f3n de los moldes cerrados, estos permiten obtener tolerancias m\u00e1s peque\u00f1as y piezas m\u00e1s complejas. El coste fijo de la herramienta moldeo por transferencia es mayor que en los moldes cerrados, moldeo por compresi\u00f3n y dado que ambos m\u00e9todos producen residuos, ya sea en forma de chapa o en forma de material que queda en las muelas y los canales, moldeo por transferencia el proceso resulta m\u00e1s costoso.<\/p>","protected":false},"excerpt":{"rendered":"<p>Transfer molding, ( BrE moulding ) like compression molding, is a process where the amount of molding material (usually a thermoset plastic) is measured and inserted before the molding takes place. The molding material is preheated and loaded into a chamber known as the pot. A plunger is then used to force the material from [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"footnotes":""},"class_list":["post-1164","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transfer Molding Defined - COi Rubber Products<\/title>\n<meta name=\"description\" content=\"Transfer Molding. This is an automated operation that combines compression-, molding, and transfer-molding processes. 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