{"id":330,"date":"2020-12-04T11:45:09","date_gmt":"2020-12-04T17:45:09","guid":{"rendered":"http:\/\/www.IpsenHarold.com\/?p=330"},"modified":"2026-03-11T17:22:58","modified_gmt":"2026-03-11T17:22:58","slug":"hot-zone-cleanup-cycle","status":"publish","type":"knowledge-center","link":"https:\/\/ipsenglobal.com\/de\/knowledge-center\/hot-zone-cleanup-cycle\/","title":{"rendered":"Fragen Sie den Experten: Wie f\u00fchre ich einen Reinigungszyklus in meinem Vakuumofen durch?"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/Hot-Zones-500x500-1.jpg\" alt=\"Graphite and Metal vacuum furnace hot zones\" class=\"wp-image-3594\" srcset=\"https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/Hot-Zones-500x500-1.jpg 500w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/Hot-Zones-500x500-1-300x300.jpg 300w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/Hot-Zones-500x500-1-150x150.jpg 150w, https:\/\/ipsenglobal.com\/wp-content\/uploads\/2022\/03\/Hot-Zones-500x500-1-12x12.jpg 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n\n\n<p>Im heutigen wettbewerbsorientierten Gesch\u00e4ftsumfeld ist es wichtig, dass Ihre Ger\u00e4te effizient arbeiten und so lange wie m\u00f6glich halten. Eine effektive Methode zur Verl\u00e4ngerung der Lebensdauer Ihrer <a href=\"https:\/\/ipsenglobal.com\/de\/vacuum-furnaces\/\" target=\"_blank\" rel=\"noopener noreferrer\">Vakuumofen<\/a> ist es, eine saubere hei\u00dfe Zone zu erhalten, die frei von Prozessverunreinigungen ist. Nachfolgend finden Sie eine allgemeine Anleitung zur Durchf\u00fchrung eines Reinigungszyklus f\u00fcr eine Graphit- oder Metall-Hei\u00dfzone:<\/p>\n\n\n\n<p><strong>1.&nbsp;<em>Rampenphase:<\/em><\/strong> Heizen Sie den Ofen langsam mit einer Geschwindigkeit von \u2264 20 \u00b0F (\u2264 11 \u00b0C) pro Minute auf die Reinigungstemperatur auf, die in der Regel um 100 \u00b0F (56 \u00b0C) h\u00f6her ist als die maximale Betriebstemperatur, die w\u00e4hrend eines normalen Prozesszyklus erreicht wird, aber nicht die maximal zul\u00e4ssige Ofentemperatur \u00fcberschreiten sollte.<\/p>\n\n\n\n<p><em><strong>Anmerkung:<\/strong> Wenn die maximale Prozesszyklus-Temperatur &lt; 1.900 \u00b0F (1.038 \u00b0C) ist, sollte die Reinigungstemperatur dennoch \u2265 2.000 \u00b0F (1.093 \u00b0C) sein.<\/em><\/p>\n\n\n\n<p><strong>2. P<em>artialer Druck:<\/em><\/strong> W\u00e4hrend der Rampenphase des Programms sollte der Partialdruck von Stickstoff oder Argon verwendet werden, um die W\u00e4rme\u00fcbertragung zu maximieren und Prozessverunreinigungen von der Diffusionspumpe fernzuhalten. Der gr\u00f6\u00dfte Nutzen wird erzielt, wenn der Gasdruck auf (oder nahe) dem maximal zul\u00e4ssigen Partialdruck eingestellt wird, typischerweise entweder 1.000 bis 2.000 Mikrometer.<\/p>\n\n\n\n<p><strong><em>3. Einweichphase<\/em><\/strong><em>:<\/em> Sobald der Ofen den Sollwert (die Reinigungstemperatur) erreicht hat, halten Sie die Temperatur und den Partialdruck f\u00fcr 60 Minuten aufrecht. Dann wird das Partialdruckereignis aus dem Prozess entfernt und der Ofen auf das niedrigstm\u00f6gliche Vakuumniveau heruntergepumpt. Sobald sich das Vakuum auf dem niedrigsten Stand stabilisiert hat (in der Regel nach f\u00fcnf bis zehn Minuten), lassen Sie den Ofen weitere 60 Minuten lang unter dieser Hartvakuumbedingung bei gleichbleibender Temperatur einweichen.<\/p>\n\n\n\n<p><strong><em>4. Phase stromlos schalten:<\/em><\/strong> Schalten Sie die Heizung aus und lassen Sie den Ofen im Vakuum (d. h. ohne Verwendung von F\u00fcllgas oder Gebl\u00e4se) auf &lt; 816 \u00b0C (1.500 \u00b0F) abk\u00fchlen.<\/p>\n\n\n\n<p><em><strong>Anmerkung:<\/strong> Wenn eine genaue Berechnung der Leckagerate erw\u00fcnscht ist, sollte sie \u00fcber einen Zeitraum von \u2265 vier Stunden durchgef\u00fchrt werden, beginnend nachdem die oben genannten Schritte durchgef\u00fchrt wurden und der Ofen auf \u2264 80 \u00b0F (27 \u00b0C) - oder so nah wie m\u00f6glich an der Umgebungstemperatur - vakuumgek\u00fchlt wurde.<\/em><\/p>\n\n\n\n<p><strong><em>5. Abk\u00fchlungsphase:<\/em><\/strong> Wenn keine Dichtheitspr\u00fcfung durchgef\u00fchrt wird, muss der Ofen bei Erreichen der <em>&lt; <\/em>1.500 \u00b0F (816 \u00b0C), kann es mit einem Gebl\u00e4se auf Raumtemperatur abgek\u00fchlt werden.<\/p>\n\n\n\n<p><strong>6.&nbsp;<em>Abschlie\u00dfende Inspektion:<\/em><\/strong> \u00d6ffnen Sie die T\u00fcr. F\u00fchren Sie eine Sichtpr\u00fcfung der Heizelemente und aller Komponenten der hei\u00dfen Zone auf Sauberkeit und mechanische Unversehrtheit durch. \u00dcberpr\u00fcfen Sie den Widerstand zwischen Element und Erde (typischerweise 87 \u03a9 bis 110 \u03a9).<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>Zus\u00e4tzliche \u00dcberlegungen:<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Die Verunreinigung der hei\u00dfen Zone variiert je nach Material, W\u00e4rmebehandlungsverfahren und Produktionsvolumen. Das bedeutet, dass es keinen einheitlichen Reinigungszyklus gibt, der f\u00fcr alle passt. Der oben beschriebene Prozess muss m\u00f6glicherweise an Ihre besonderen Anforderungen angepasst werden. Rampenraten, Gasdruck und Eintauchzeiten k\u00f6nnen innerhalb der zul\u00e4ssigen Grenzen angepasst werden, um die bestm\u00f6glichen Ergebnisse zu erzielen. Es ist wichtig, dass Sie sich f\u00fcr die genauen Spezifikationen immer auf Ihr Ofenhandbuch beziehen.<\/li>\n\n\n\n<li>Wenn Sie einen \u00e4lteren Ofen haben oder einen, der schon seit einiger Zeit nicht mehr produziert wird, sollten Sie Folgendes beachten:\n<ul class=\"wp-block-list\">\n<li>Der Vakuumofen muss auf eine h\u00f6here Temperatur gebracht und lange genug getr\u00e4nkt werden, um einen gleichm\u00e4\u00dfigen W\u00e4rmeverlustzustand zu erreichen. Vergewissern Sie sich, dass Ihr Ofen dies aush\u00e4lt, bevor Sie mit einem Reinigungszyklus fortfahren.<\/li>\n\n\n\n<li>Bei den meisten \u00d6fen der Marke Ipsen sollte diese durchschnittliche Reinigungstemperatur 2.200 \u00b0F (1.204 \u00b0C) nicht \u00fcberschreiten. <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p class=\"has-text-align-left\">Weitere hilfreiche Tipps finden Sie in unserem&nbsp;<a href=\"https:\/\/ipsenglobal.com\/de\/category\/ask-the-expert\/\" target=\"_blank\" rel=\"noreferrer noopener\">Frag den Experten Seite<\/a>.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Haben Sie eine technische Frage zur W\u00e4rmebehandlung oder zum Betrieb und zur Wartung von Vakuum\u00f6fen?<\/h5>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n    <section id=\"button-block_666b362c06e26701deeca5134f35c11c\"\n        class=\"button-custom-block d-block d-lg-inline-block mx-auto me-lg-5 mb-4\">\n        <a class=\"btn btn-outline-secondary\" href=\"https:\/\/ipsenglobal.com\/de\/connect-with-an-expert\/\" target=\"_blank\">\n            Verbindung mit einem Ipsen-Experten        <\/a>\n    <\/section>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Im heutigen wettbewerbsorientierten Gesch\u00e4ftsumfeld ist es wichtig, dass Ihre Ger\u00e4te effizient arbeiten und so lange wie m\u00f6glich halten. Eine effektive Methode zur Verl\u00e4ngerung der Lebensdauer Ihres Staubsaugers<\/p>","protected":false},"author":7,"featured_media":771,"menu_order":0,"template":"","meta":{"_acf_changed":false,"_tec_requires_first_save":true,"_searchwp_excluded":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_tribe_blocks_recurrence_rules":"","_tribe_blocks_recurrence_description":"","_tribe_blocks_recurrence_exclusions":"","_ecp_custom_2":"","footnotes":""},"categories":[112,612],"tags":[450,25,75],"class_list":["post-330","knowledge-center","type-knowledge-center","status-publish","has-post-thumbnail","hentry","category-ask-the-expert","category-preventive-maintenance","tag-cleanup-cycle","tag-hot-zone","tag-vacuum-furnace"],"acf":[],"yoast_head":"<!-- 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