{"id":1558,"date":"2021-01-20T10:21:27","date_gmt":"2021-01-20T09:21:27","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=1558"},"modified":"2025-09-30T16:05:38","modified_gmt":"2025-09-30T14:05:38","slug":"kulicky-z-oxidu-hliniteho-al2o3-korund","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/cs\/produkty\/keramicke-kulicky\/kulicky-z-oxidu-hliniteho-al2o3-korund\/","title":{"rendered":"Kuli\u010dky z Oxidu Hlinit\u00e9ho Al2O3 (Korund)"},"content":{"rendered":"<p><!-- CZ --><\/p>\n<h2 data-start=\"212\" data-end=\"289\">\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Aluminium_oxide\"> Kuli\u010dky z Oxidu Hlinit\u00e9ho (Al\u2082O\u2083) Alumina \u2013 vysoce v\u00fdkonn\u00e9 p\u0159esn\u00e9 komponenty<\/a><\/h2>\n<p data-start=\"212\" data-end=\"289\">Kuli\u010dky z oxidu hlinit\u00e9ho jsou pokro\u010dil\u00e9 stroj\u00edrensk\u00e9 komponenty zn\u00e1m\u00e9 v\u00fdjime\u010dnou tvrdost\u00ed, n\u00edzkou hustotou, vynikaj\u00edc\u00ed tepelnou a ot\u011bruvzdornou odolnost\u00ed a stabiln\u00edm <strong data-start=\"458\" data-end=\"482\">chemick\u00fdm slo\u017een\u00edm<\/strong>. Vysoce \u010dist\u00e9 slo\u017een\u00ed Al\u2082O\u2083 zaji\u0161\u0165uje vynikaj\u00edc\u00ed odolnost proti korozi a kompatibilitu s chemick\u00fdm prost\u0159ed\u00edm, d\u00edky \u010demu\u017e jsou ide\u00e1ln\u00ed pro n\u00e1ro\u010dn\u00e9 aplikace v letectv\u00ed, hybridn\u00edch i celokeramick\u00fdch lo\u017eisk\u00e1ch, vysokorychlostn\u00edch rota\u010dn\u00edch syst\u00e9mech a chemick\u00fdch provozech.<\/p>\n<h3 data-start=\"766\" data-end=\"801\">\ud83d\udd27 Kl\u00ed\u010dov\u00e9 technick\u00e9 specifikace<\/h3>\n<ul>\n<li data-start=\"805\" data-end=\"831\"><strong data-start=\"805\" data-end=\"816\">Hustota<\/strong>: ~3,95 g\/cm\u00b3<\/li>\n<li data-start=\"834\" data-end=\"857\"><strong data-start=\"834\" data-end=\"846\">Tvrdost<\/strong>: ~70 HRC<\/li>\n<li data-start=\"860\" data-end=\"897\"><strong data-start=\"860\" data-end=\"881\">Pevnost v ohybu<\/strong>: ~150 000 psi<\/li>\n<li data-start=\"900\" data-end=\"944\"><strong data-start=\"900\" data-end=\"924\">Pevnost v tlaku<\/strong>: ~2 500\u20133 000 MPa<\/li>\n<li data-start=\"947\" data-end=\"978\"><strong data-start=\"947\" data-end=\"966\">Modul pru\u017enosti<\/strong>: ~200 GPa<\/li>\n<li data-start=\"981\" data-end=\"1026\"><strong data-start=\"981\" data-end=\"1009\">Lomov\u00e1 hou\u017eevnatost (K\u2081c)<\/strong>: ~3\u20135 MPa\u00b7m\u2070\u00b7\u2075<\/li>\n<li data-start=\"1029\" data-end=\"1076\"><strong data-start=\"1029\" data-end=\"1053\">Tepeln\u00e1 vodivost<\/strong>: ~30 W\/(m\u00b7K) p\u0159i 20 \u00b0C<\/li>\n<li data-start=\"1079\" data-end=\"1140\"><strong data-start=\"1079\" data-end=\"1121\">Sou\u010dinitel tepeln\u00e9 rozta\u017enosti (CTE)<\/strong>: ~8,5 \u00d7 10\u207b\u2076 \/\u00b0C<\/li>\n<li data-start=\"1143\" data-end=\"1206\"><strong data-start=\"1143\" data-end=\"1169\">M\u011brn\u00fd elektrick\u00fd odpor<\/strong>: &gt;10\u00b9\u00b2 \u03a9\u00b7cm (elektrick\u00fd izolant)<\/li>\n<li data-start=\"1209\" data-end=\"1252\"><strong data-start=\"1209\" data-end=\"1234\">Provozn\u00ed teplota<\/strong>: a\u017e ~1 600 \u00b0C<\/li>\n<li data-start=\"1255\" data-end=\"1306\"><strong data-start=\"1255\" data-end=\"1268\">Chemick\u00e9 slo\u017een\u00ed<\/strong>: \u226599,5 % Al\u2082O\u2083 (vysoce \u010dist\u00e1 alumina)<\/li>\n<\/ul>\n<h3 data-start=\"1313\" data-end=\"1329\">\u2705 V\u00fdhody<\/h3>\n<ul>\n<li data-start=\"1333\" data-end=\"1422\"><strong data-start=\"1333\" data-end=\"1370\">Vysok\u00e1 tvrdost a odolnost proti opot\u0159eben\u00ed<\/strong>: Zaji\u0161\u0165uje dlouhou \u017eivotnost v extr\u00e9mn\u00edch podm\u00ednk\u00e1ch.<\/li>\n<li data-start=\"1425\" data-end=\"1541\"><strong data-start=\"1425\" data-end=\"1470\">Stabiln\u00ed chemie a odolnost proti korozi<\/strong>: Kompatibiln\u00ed s chemick\u00fdmi prost\u0159ed\u00edmi v\u010detn\u011b kyselin a z\u00e1sad.<\/li>\n<li data-start=\"1544\" data-end=\"1651\"><strong data-start=\"1544\" data-end=\"1589\">N\u00edzk\u00e1 hustota a men\u0161\u00ed odst\u0159ediv\u00e1 s\u00edla<\/strong>: Leh\u010d\u00ed ne\u017e ocel, umo\u017e\u0148uje vy\u0161\u0161\u00ed rychlosti a \u00fa\u010dinnost.<\/li>\n<li data-start=\"1654\" data-end=\"1770\"><strong data-start=\"1654\" data-end=\"1703\">Vynikaj\u00edc\u00ed tepeln\u00e1 stabilita a n\u00edzk\u00e1 rozta\u017enost<\/strong>: Zachov\u00e1v\u00e1 integritu p\u0159i rychl\u00fdch zm\u011bn\u00e1ch teploty.<\/li>\n<li data-start=\"1773\" data-end=\"1890\"><strong data-start=\"1773\" data-end=\"1826\">Elektrick\u00e1 izolace a nemagnetick\u00e9 vlastnosti<\/strong>: Ide\u00e1ln\u00ed pro motory, senzory a chemicky citliv\u00e9 syst\u00e9my.<\/li>\n<li data-start=\"1893\" data-end=\"1966\"><strong data-start=\"1893\" data-end=\"1920\">Vysok\u00e1 lomov\u00e1 hou\u017eevnatost<\/strong>: Odolnost v\u016f\u010di n\u00e1raz\u016fm a mechanick\u00e9mu nam\u00e1h\u00e1n\u00ed.<\/li>\n<li data-start=\"1969\" data-end=\"2056\"><strong data-start=\"1969\" data-end=\"1990\">Prodlou\u017een\u00e1 \u017eivotnost<\/strong>: N\u00edzk\u00e9 t\u0159en\u00ed sni\u017euje pot\u0159ebu maz\u00e1n\u00ed a \u00fadr\u017eby.<\/li>\n<\/ul>\n<h3 data-start=\"2063\" data-end=\"2082\">\ud83d\udd04 Aplikace kuli\u010dek z oxidu hlinit\u00e9ho<\/h3>\n<p data-start=\"2084\" data-end=\"2187\">Keramick\u00e9 kuli\u010dky z aluminy (Al\u2082O\u2083) se pou\u017e\u00edvaj\u00ed v \u0161irok\u00e9m spektru vysoce v\u00fdkonn\u00fdch aplikac\u00ed, v\u010detn\u011b:<\/p>\n<ul>\n<li data-start=\"2191\" data-end=\"2277\"><strong data-start=\"2191\" data-end=\"2227\">Hybridn\u00ed a celokeramick\u00e1 lo\u017eiska<\/strong>: Pro vysokorychlostn\u00ed, n\u00edzkot\u0159ec\u00ed rota\u010dn\u00ed syst\u00e9my.<\/li>\n<li data-start=\"2280\" data-end=\"2356\"><strong data-start=\"2280\" data-end=\"2314\">Leteck\u00e9 motory a turb\u00edny<\/strong>: Ov\u011b\u0159en\u00e9 v kritick\u00fdch pohonn\u00fdch syst\u00e9mech.<\/li>\n<li data-start=\"2359\" data-end=\"2451\"><strong data-start=\"2359\" data-end=\"2391\">Elektrick\u00e1 vozidla a motory<\/strong>: Zaji\u0161\u0165uj\u00ed izolaci a odolnost v trak\u010dn\u00edch syst\u00e9mech.<\/li>\n<li data-start=\"2454\" data-end=\"2522\"><strong data-start=\"2454\" data-end=\"2471\">V\u011btrn\u00e9 turb\u00edny<\/strong>: Dlouhodob\u00e1 spolehlivost p\u0159i vysok\u00fdch dynamick\u00fdch zat\u00ed\u017een\u00edch.<\/li>\n<li data-start=\"2525\" data-end=\"2605\"><strong data-start=\"2525\" data-end=\"2558\">Za\u0159\u00edzen\u00ed pro chemick\u00e9 zpracov\u00e1n\u00ed<\/strong>: Odolnost v\u016f\u010di korozivn\u00edm chemik\u00e1li\u00edm a kyselin\u00e1m.<\/li>\n<li data-start=\"2608\" data-end=\"2712\"><strong data-start=\"2608\" data-end=\"2647\">Polovodi\u010dov\u00e1 a zdravotnick\u00e1 za\u0159\u00edzen\u00ed<\/strong>: Nemagnetick\u00e9 a dielektrick\u00e9 vlastnosti pro citliv\u00e9 syst\u00e9my.<\/li>\n<li data-start=\"2715\" data-end=\"2809\"><strong data-start=\"2715\" data-end=\"2766\">Pr\u016fmyslov\u00e9 n\u00e1stroje a vysokoteplotn\u00ed stroje<\/strong>: Odoln\u00e9 v\u016f\u010di teplu, chemik\u00e1li\u00edm a opot\u0159eben\u00ed.<\/li>\n<\/ul>\n<h3 data-start=\"2816\" data-end=\"2849\">\ud83d\udce6 Dostupn\u00e9 t\u0159\u00eddy a velikosti<\/h3>\n<p data-start=\"2851\" data-end=\"2933\">Keramick\u00e9 kuli\u010dky z aluminy jsou k dispozici v \u0161irok\u00e9 \u0161k\u00e1le p\u0159esnostn\u00edch t\u0159\u00edd a velikost\u00ed:<\/p>\n<ul>\n<li data-start=\"2937\" data-end=\"2965\"><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong data-start=\"2937\" data-end=\"2947\">T\u0159\u00eddy<\/strong>: G25, G50, G100<\/a><\/li>\n<li data-start=\"2968\" data-end=\"2999\"><strong data-start=\"2968\" data-end=\"2981\">Pr\u016fm\u011bry<\/strong>: 0,5 mm \u2013 50 mm<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Kuli\u010dky z Oxidu Hlinit\u00e9ho (Al\u2082O\u2083) Alumina \u2013 vysoce v\u00fdkonn\u00e9 p\u0159esn\u00e9 komponenty Kuli\u010dky z oxidu hlinit\u00e9ho jsou pokro\u010dil\u00e9 stroj\u00edrensk\u00e9 komponenty zn\u00e1m\u00e9 v\u00fdjime\u010dnou tvrdost\u00ed, n\u00edzkou hustotou, vynikaj\u00edc\u00ed tepelnou a ot\u011bruvzdornou odolnost\u00ed a stabiln\u00edm chemick\u00fdm slo\u017een\u00edm. Vysoce \u010dist\u00e9 slo\u017een\u00ed Al\u2082O\u2083 zaji\u0161\u0165uje vynikaj\u00edc\u00ed odolnost proti korozi a kompatibilitu s chemick\u00fdm prost\u0159ed\u00edm, d\u00edky \u010demu\u017e jsou ide\u00e1ln\u00ed pro n\u00e1ro\u010dn\u00e9 aplikace [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8963,"parent":1552,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1558","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kuli\u010dky z oxidu hlinit\u00e9ho Al2O3 Korund tvrdost a chemick\u00e1 odolnost<\/title>\n<meta name=\"description\" content=\"Kuli\u010dky z oxidu hlinit\u00e9ho vynikaj\u00ed vysokou tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a chemick\u00e9 stabilit\u011b pro 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