{"id":6654,"date":"2021-04-04T13:21:11","date_gmt":"2021-04-04T13:21:11","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6654"},"modified":"2021-08-04T17:59:26","modified_gmt":"2021-08-04T17:59:26","slug":"verfahren-zur-herstellung-von-tafelkorund","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/de\/verfahren-zur-herstellung-von-tafelkorund\/","title":{"rendered":"Verfahren zur Herstellung von Tafelkorund"},"content":{"rendered":"

Ein wichtiger Rohstoff f\u00fcr feuerfeste Materialien in gro\u00dfem Ma\u00dfstab, Tafelkorund<\/a> wird in einem Hochtemperatur-Schachtofen hergestellt, der gesinterter Tafelkorund<\/a>die durch die folgenden Verfahrensschritte gekennzeichnet ist.
\n1. Kugelmahlen.<\/strong> Mit Bayer-Verfahren lichtgebrannt Tonerdepulver<\/a> als Rohmaterial f\u00fcr die kontinuierliche Kugelvermahlung m\u00fcssen die Feinheit und die spezifische Oberfl\u00e4che den Anforderungen entsprechen, was die Sinterung und Verdichtung des Materials f\u00f6rdert. Tonerdepulver.<\/a><\/p>\n

2. In den Ball.<\/strong> Das gemahlene Pulver wird mit einer Kugelscheibe oder einem Kugelrohr zu einer Kugel geformt. Die geformten Pellets m\u00fcssen fest sein, damit sie beim Transport zum Trockner nicht brechen. Bei der Pelletierung haben die halbfertigen Pellets einen hohen Wassergehalt, eine leichte Schichtung und schwierige Trocknungsprobleme. Die entsprechende Prozessoptimierung wird durchgef\u00fchrt und richtig gel\u00f6st.
\n3. Trocken.<\/strong> Die geformten gr\u00fcnen Kugeln werden in den Trockner gegeben. Die Gegenstrom-Hei\u00dfluft im Schachtofen wird zum Trocknen verwendet, um etwa 15% (w) an Feuchtigkeit zu entfernen. Die Temperatur im Schachtofen muss jedoch streng kontrolliert werden, um Risse und Schichtungen oder sogar Agglomerationen und Verstopfungen im Kn\u00fcppel zu vermeiden, die eine Unterbrechung des Kugelflusses und eine Verschlechterung der Trocknungsqualit\u00e4t zur Folge h\u00e4tten.
\n4. Sintern.<\/strong> Die gr\u00fcnen Kugeln gelangen nach dem Trocknen in den Schachtofen. Die Sintertemperatur betr\u00e4gt 1900`1950\u00b0C. Durch Steuerung der Temperatur und der Durchflussmenge der Hei\u00dfluft im Schachtofen wird eine plattenf\u00f6rmige Korundstruktur mit voll entwickelten und gesinterten Kristallen erzielt.
\nNach dem Sintern, nach dem Abk\u00fchlen, Sortieren, Pr\u00fcfen, Zerkleinern und Sieben k\u00f6nnen Produkte unterschiedlicher Korngr\u00f6\u00dfe gewonnen werden.<\/p>","protected":false},"excerpt":{"rendered":"

As a large-scale important raw material of refractory materials, tabular corundum is produced by using a high-temperature shaft kiln to produce sintered tabular corundum, which is characterized by the following process steps. 1. Ball milling. Using Bayer process light-burned alumina powder as the raw material for continuous ball milling, the fineness and specific surface area […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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