{"id":2647,"date":"2010-12-01T12:14:40","date_gmt":"2010-12-01T10:14:40","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=2647"},"modified":"2010-11-19T12:23:14","modified_gmt":"2010-11-19T10:23:14","slug":"materie-plastiche-ed-alta-temperatura","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/2647\/materie-plastiche-ed-alta-temperatura\/","title":{"rendered":"Materie plastiche ed alta temperatura"},"content":{"rendered":"<p>I processi produttivi legati alle materie plastiche, necessitano sempre sia di <strong>calore che raffreddamento<\/strong>.<\/p>\n<p>In questo caso vorrei parlare della parte legata al riscaldamento.<\/p>\n<p>In pratica la parte dove avviene l&#8217;estrusione delle <strong>materie plastiche<\/strong>, implica un riscaldamento che a seconda del tipo di materiale da produrre, pu\u00f2 essere a temperature pi\u00f9 o meno elevate, con un grado di precisione e <a href=\"http:\/\/www.tempco.it\/prodotti.asp?ID=22\">termoregolazione<\/a> piuttosto raffinato, che implica l&#8217;impiego a seconda dei casi di:<\/p>\n<ul>\n<li><strong>acqua fino a 90\u00b0C<\/strong><\/li>\n<li><strong>acqua pressurizzata fino a 140\u00b0C<\/strong><\/li>\n<li><strong>olio diatermico fino a 180\u00b0C<\/strong><\/li>\n<li><strong>olio diatermico oltre i 200\u00b0C fino ad un massimo di 300\u00b0C<\/strong><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2010\/11\/P1010022.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-thumbnail wp-image-2651\" title=\"T REG OHT - centralina di termoregolazione per olio diatermico\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2010\/11\/P1010022-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<ul><\/ul>\n<p><!--more-->Proprio ultimamente abbiamo realizzato una serie di macchine per impianti di estrusione di materie plastiche ad elevato contenuto tecnico, che richiedeva la <strong>termoregolazione di 4 zone<\/strong>, a differenti temperature, ma tutte comunque comprese nel range da <strong>200\u00b0C a 300\u00b0C<\/strong>.<\/p>\n<p>Il tipo di processo richiedeva una potenza di riscaldamento di circa <strong>40 KW per ogni sezione<\/strong>, unito a fasi di raffreddamento spinto e rapido, con una costanza di temperatura molto accurata, motivo per cui abbiamo realizzato delle <strong>centraline con sezione di riscaldamento e di raffreddamento<\/strong>.<\/p>\n<p>La <strong>potenza di riscaldamento<\/strong> \u00e8 stata suddivisa in <strong>due sezioni<\/strong>, in modo da poter gestire i picchi di potenza richiesta, ma contemporaneamente consentire la accuratezza di termoregolazione richiesta. Le resistenze vengono pilotate tramite <strong><a href=\"https:\/\/www.tempco.it\/blog\/311\/centraline-di-termoregolazione-e-rele-statici-scr\/\">rel\u00e8 statici (SCR)<\/a><\/strong>.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2010\/11\/P1010015.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-thumbnail wp-image-2652\" title=\"SCR HEATER DRIVE\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2010\/11\/P1010015-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>La sezione di raffreddamento, realizzata tramite <a href=\"http:\/\/www.tempco.it\/prodotti.asp?ID=84\">scambiatori in acciaio inox a fascio tubiero<\/a>, viene gestita tramite una valvola modulante, in modo da poter gestire sia le piccole richieste in caso di mantenimento e pendolazioni di produzione, che i picchi di potenzialit\u00e0 richiesti a piena potenza di raffreddamento.<\/p>\n<p>Il <a href=\"https:\/\/www.tempco.it\/blog\/2072\/olio-diatermico-ad-alta-temperatura-2\/\">vaso di espansione dell&#8217;olio<\/a>, di ampia capacit\u00e0 (120 lt), ha un tubo di adduzione raffreddato, in modo da poter abbattere la temperatura dell&#8217;olio stesso, in caso di polmonazioni, legate alle variazioni di carico del processo stesso.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I processi produttivi legati alle materie plastiche, necessitano sempre sia di calore che raffreddamento. In questo caso vorrei parlare della [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,3,15,35],"tags":[],"class_list":["post-2647","post","type-post","status-publish","format-standard","hentry","category-centraline-di-termoregolazione","category-energia-termica","category-termoregolazione","category-termostatazione"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Materie plastiche ed alta temperatura - Tempco Blog<\/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.tempco.it\/blog\/2647\/materie-plastiche-ed-alta-temperatura\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Materie plastiche ed alta temperatura - Tempco Blog\" \/>\n<meta property=\"og:description\" content=\"I processi produttivi legati alle materie plastiche, necessitano sempre sia di calore che raffreddamento. 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