{"id":39723,"date":"2020-10-25T07:27:18","date_gmt":"2020-10-25T07:27:18","guid":{"rendered":"https:\/\/em-jewels.com\/?p=39723"},"modified":"2020-10-25T07:46:20","modified_gmt":"2020-10-25T07:46:20","slug":"problemas-con-el-inyector-de-cera","status":"publish","type":"post","link":"https:\/\/em-jewels.com\/es\/problemas-con-el-inyector-de-cera\/","title":{"rendered":"problemas con el inyector de cera"},"content":{"rendered":"\n<iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/NQDqC_-9wR0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe>\n\n\n\n<p><\/p>\n\n\n\n<p>Todos lo conocemos esta situaci\u00f3n: una m\u00e1quina \/ aparato ha dejado de funcionar. En algunos momentos es peor que en otros. Tal vez no hayas usado mucho el dispositivo o la inversi\u00f3n en uno nuevo no consume tanto dinero. No es as\u00ed con mi inyector de cera, se usaba a menudo en mi taller de joyer\u00eda y una m\u00e1quina nueva habr\u00eda costado al menos 500 \u20ac (existen tambi\u00e9n los modelos chinos, pero no lo investigu\u00e9 m\u00e1s). Los inyectores de cera, como su nombre indica, inyectan cera en un molde. Con el proceso de la fundici\u00f3n este modelo de cera se convierte en metal (todav\u00eda hay varios pasos intermedios que no explicar\u00e9 aqu\u00ed). Es un procedimiento muy pr\u00e1ctico, ya que de manera simplificada los modelos se pueden producir de forma repetitiva.<\/p>\n\n\n\n<p>La antigua tapa de la m\u00e1quina se agriet\u00f3 bastante con el tiempo y ya no era posible de establecer una presi\u00f3n, imprescindible para una buena calidad del modelo en cera. He estado buscando piezas de repuesto en Internet, pero por supuesto que no las hab\u00eda.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>La primera idea fue producir toda la tapa con la impresora 3D, para ello compr\u00e9 filamento ABS. El ABS es m\u00e1s termoresistente que otros filamentos. En un programa 3D reconstru\u00ed la tapa y la impresora se puso a trabajar. Al parecer, no es muy f\u00e1cil de manejar el filamento ABS porque despu\u00e9s de enfriarse se acumula una tensi\u00f3n y la tapa se deform\u00f3 con cada capa y se despeg\u00f3 de la base. Al final, las 15 horas de impresi\u00f3n no sirvieron para nada (mi impresora 3D es bastante \u00aboldschool\u00bb y lenta).<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>Entonces tuve la idea de imprimir solo una parte y crear el resto con resina epoxi. Por suerte ca\u00ed en cuenta de que era mejor de colocar las piezas funcionales (v\u00e1lvulas, man\u00f3metros) despu\u00e9s de que se hubiera endurecido la resina. Si los hubiera colocado al mismo tiempo con la colada, se hubieran pegado por completo con el epoxi y hubiera sido complicado reutilizarlas. En el primer intento vert\u00ed el epoxi directamente sobre el azulejo de cer\u00e1mica y curiosamente, la resina se peg\u00f3 por completo a la placa y fue imposible de quitarlo.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>As\u00ed que, para el tercer intento puse un papel de horno como capa intermedia sobre el azulejo de cer\u00e1mica. Esto ten\u00eda la consecuencia de que la tapa terminada no estaba completamente plana en algunas partes, pero esto se podr\u00eda igualar con papel de lija. Despu\u00e9s de eso, atornill\u00e9 las v\u00e1lvulas en las piezas impresas en 3D. Todo el resultado era extremadamente s\u00f3lido e impermeable. Pero, incluso con la tapa perfectamente plana, se necesitaba una junta entre la tapa y la maquina (vea el video al final).<\/li><\/ul>\n\n\n\n<p>Afortunadamente todo funcion\u00f3 y mi hermosa tapa \u00abself-made\u00bb salv\u00f3 el inyector de cera. En general, fue bastante f\u00e1cil de fabricarlo, pero es muy importante de elegir materiales termorresistentes. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Todos lo conocemos esta situaci\u00f3n: una m\u00e1quina \/ aparato ha dejado de funcionar. En algunos momentos es peor que en otros. Tal vez no hayas usado mucho el dispositivo o la inversi\u00f3n en uno nuevo no consume tanto dinero. No es as\u00ed con mi inyector de cera, se usaba a menudo en mi taller de [&#8230;]\n","protected":false},"author":1,"featured_media":39725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39723","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>problemas con el inyector de cera<\/title>\n<meta name=\"description\" content=\"como fabricar una nueva tapa de la inyectora de cera\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/em-jewels.com\/es\/problemas-con-el-inyector-de-cera\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta 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