{"id":12974,"date":"2025-11-05T18:57:28","date_gmt":"2025-11-05T18:57:28","guid":{"rendered":"https:\/\/ipsenglobal.com\/?post_type=knowledge-center&p=12974"},"modified":"2026-03-11T17:15:13","modified_gmt":"2026-03-11T17:15:13","slug":"ask-the-expert-when-leak-up-rates-and-part-discoloration-dont-align","status":"publish","type":"knowledge-center","link":"https:\/\/ipsenglobal.com\/de\/knowledge-center\/ask-the-expert-when-leak-up-rates-and-part-discoloration-dont-align\/","title":{"rendered":"Fragen Sie den Experten: Wenn Leckageraten und Teileverf\u00e4rbung nicht \u00fcbereinstimmen"},"content":{"rendered":"

Von Matt Clinite, Verkaufsleiter<\/h4>\n\n\n\n
\n\n\n\n

Leckraten<\/a> kann tr\u00fcgerisch sein. Es kann sein, dass Sie saubere, gl\u00e4nzende Teile aus Ihrem Ofen kommen sehen, obwohl die Leckrate auf ein Problem hindeutet. In anderen F\u00e4llen k\u00f6nnen Sie eine Verf\u00e4rbung der Teile feststellen, ohne dass es Anzeichen f\u00fcr eine erh\u00f6hte Leckrate gibt.<\/p>\n\n\n\n

Dies sind h\u00e4ufige Situationen, die zu Verwirrung und zus\u00e4tzlicher Fehlersuche f\u00fchren k\u00f6nnen. Schauen wir uns beide Szenarien genauer an und zeigen einige praktische M\u00f6glichkeiten auf, wie man das Problem eingrenzen kann, bevor man Stunden mit der Diagnose des falschen Problems verbringt.<\/p>\n\n\n\n

Saubere Teile, verd\u00e4chtige Leckrate<\/h3>\n\n\n\n

Einer der h\u00e4ufigsten Gr\u00fcnde daf\u00fcr, dass Sie ein sauberes Teil erhalten, obwohl die Leckrate h\u00f6her als erwartet ist, kann eine verschlissene Dichtung in einem der F\u00fcll- oder Teildruckventile sein.<\/p>\n\n\n\n

Bei dieser Art von Leckagen kann Inertgas in die Kammer eindringen, so dass es zu keiner chemischen Wechselwirkung zwischen dem austretenden Gas und den Teilen kommen kann. Ein langsames Inertgasleck kann jedoch bei einer Rezeptur, die ein niedriges Vakuum erfordert, Probleme verursachen. So kann ein Prozessgasleck beispielsweise verhindern, dass der Ofen das erforderliche Vakuum erreicht, um das Hauptventil der Diffusionspumpe auszul\u00f6sen.<\/p>\n\n\n\n

Am besten l\u00e4sst sich diese Theorie \u00fcberpr\u00fcfen, indem man die Gaszufuhr mit dem manuellen Ventil absperrt, den Ofen unter Vakuum setzt und pr\u00fcft, ob die Anomalie der Leckrate weiterhin besteht.<\/p>\n\n\n\n

Wenn sich die Leckrate bei geschlossenen manuellen Ventilen wieder normalisiert, bedeutet dies wahrscheinlich, dass Gas entweder am R\u00fcckf\u00fcllventil oder am Unterdruckmagnetventil austritt.<\/p>\n\n\n\n

Wie immer sollten Sie beim Austausch eines Ventils die Anweisungen des Herstellers befolgen. Wenn Sie eine Absperrklappe auswechseln, nutzen Sie die Vorteile des Ipsen Empfohlene Verfahren f\u00fcr den Einbau einer Absperrklappe<\/a>.<\/p>\n\n\n\n

Denken Sie daran, dass Leckraten kumulativ sind. Viele verschiedene Quellen k\u00f6nnen zu einer hohen Leckrate beitragen. H\u00f6ren Sie also nicht einfach auf, wenn Sie ein undichtes Ventil gefunden haben, sondern seien Sie gr\u00fcndlich und stellen Sie sicher, dass Sie bei der Pr\u00fcfung des gesamten Systems alle Lecks erfassen.<\/p>\n\n\n\n

Verf\u00e4rbte Teile, gleichbleibende Leckagerate<\/h3>\n\n\n\n

Verf\u00e4rbte Teile sind ein Zeichen daf\u00fcr, dass w\u00e4hrend der Verarbeitung unerw\u00fcnschte Gase, in der Regel atmosph\u00e4rische Luft, in den Ofen gelangt sind. Aber wie kann das passieren, wenn es keine Anzeichen f\u00fcr eine erh\u00f6hte Leckrate gibt?<\/p>\n\n\n\n

Die Antwort ist h\u00e4ufig ein Leck oder ein Lufteinbruch in Ihrem Prozessgasbeh\u00e4lter oder in den Gasversorgungsleitungen.<\/p>\n\n\n\n

Beim Nachf\u00fcllen oder durch die nat\u00fcrliche Ausdehnung und Kontraktion von Leitungen aufgrund von Temperaturschwankungen kann manchmal Luft in den Tank oder die Leitungen gelangen.<\/p>\n\n\n\n

Es mag widersinnig erscheinen, dass in Gasleitungen, die unter Druck stehen, Umgebungsluft eindringen kann, aber ein physikalisches Ph\u00e4nomen namens Venturi-Effekt<\/strong> kann dazu f\u00fchren, dass atmosph\u00e4rische Luft in die Leitung gesaugt wird und das Prozessgas beim Ausstr\u00f6men verdr\u00e4ngt.<\/p>\n\n\n\n

Bevor Sie annehmen, dass Luft in den Brauchgas-Reservetank gelangt ist, stellen Sie mit einem Blasentest sicher, dass keine Lecks in den Brauchgasleitungen vorhanden sind. Achten Sie dabei genau auf jeden Anschluss und jede Biegung.<\/p>\n\n\n\n

\"Leaky<\/figure>\n\n\n\n

Wenn Sie ein Leck entdecken, egal wie gro\u00df es ist, befolgen Sie alle Prozessgassicherheitsprotokolle, dichten Sie das Leck ab (egal wie klein es ist) und melden Sie das Leck Ihrem Sicherheitskontakt.<\/strong><\/p>\n\n\n\n

\n \n Hier erfahren Sie mehr \u00fcber die Sicherheit von Prozessgasen. <\/a>\n <\/section>\n\n\n\n

Wenn nach einer gr\u00fcndlichen Inspektion keine Lecks in den Prozessgasleitungen zwischen Ihrem Ofen und dem Beh\u00e4lter entdeckt werden, kann es ratsam sein, Ihr Prozessgas gepr\u00fcft auf Taupunkt<\/a> um das Vorhandensein von Feuchtigkeit festzustellen.<\/p>\n\n\n\n

Tipp: <\/strong>Um zu vermeiden, dass nach dem Nachf\u00fcllen eines Prozessgasbeh\u00e4lters oder nach Arbeiten an einer Gasleitung Lufteinschl\u00fcsse in den Prozessleitungen entstehen, sollten Sie Ihren Ofen wieder bef\u00fcllen und ein- oder zweimal abpumpen, um sicherzustellen, dass alle unerw\u00fcnschte Luft aus dem System entfernt wurde und dass alle zum Ofen f\u00fchrenden Leitungen ordnungsgem\u00e4\u00df mit Prozessgas gef\u00fcllt sind. Wenn die Prozessgasleitungen von Ihrem Ofen zu Ihrem Beh\u00e4lter besonders lang sind, m\u00fcssen Sie diesen Zyklus m\u00f6glicherweise mehr als zweimal wiederholen.<\/p>\n\n\n\n

\n\n\n\n

Weitere hilfreiche Tipps finden Sie in unserem Frag den Experten Seite<\/a>.<\/p>\n\n\n\n

Haben Sie eine technische Frage zur W\u00e4rmebehandlung oder zum Betrieb und zur Wartung von Vakuum\u00f6fen?<\/h5>\n\n\n\n
<\/div>\n\n\n\n
\n \n Verbindung mit einem Ipsen-Experten <\/a>\n <\/section>","protected":false},"excerpt":{"rendered":"

Von Matt Clinite, Vertriebsleiter Die Leckraten k\u00f6nnen tr\u00fcgerisch sein. Vielleicht sehen Sie saubere, gl\u00e4nzende Teile aus Ihrem Ofen kommen, auch wenn die Leckrate auf ein Problem hindeutet. Andere<\/p>","protected":false},"author":7,"featured_media":0,"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],"tags":[],"class_list":["post-12974","knowledge-center","type-knowledge-center","status-publish","hentry","category-ask-the-expert"],"acf":[],"yoast_head":"\nAsk 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