{"id":1518,"date":"2021-01-20T09:52:30","date_gmt":"2021-01-20T08:52:30","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=1518"},"modified":"2025-09-30T16:29:19","modified_gmt":"2025-09-30T14:29:19","slug":"kulicky-kobaltove-slitiny","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/cs\/produkty\/kulicky-z-barevnych-kovu-a-slitin\/kulicky-kobaltove-slitiny\/","title":{"rendered":"Kuli\u010dky z Kobaltov\u00e9 Slitiny"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cobalt#Alloys\">Kuli\u010dky z kobaltov\u00e9 slitiny (slitina #20) \u2013 hou\u017eevnat\u00e9, odoln\u00e9 proti kavitaci, p\u0159ipraven\u00e9 do korozn\u00edch prost\u0159ed\u00ed<\/a><\/h2>\n<p>Kuli\u010dky z kobaltov\u00e9 slitiny (rodina Co\u2013Cr\u2013Mo) poskytuj\u00ed vynikaj\u00edc\u00ed odolnost v\u016f\u010di korozi a kavitaci p\u0159i dobr\u00e9 hou\u017eevnatosti. Nab\u00edzej\u00ed \u010dist\u00fd chod s n\u00edzk\u00fdm zad\u00edr\u00e1n\u00edm pro valiv\u00e9 a t\u011bsnic\u00ed prvky tam, kde se nerezov\u00e9 oceli d\u016flkuj\u00ed nebo opot\u0159ebov\u00e1vaj\u00ed\u2014ide\u00e1ln\u00ed pro ventily, \u010derpadla a p\u0159\u00edstroje v agresivn\u00edch kapalin\u00e1ch.<\/p>\n<h3>\ud83d\udd27 Kl\u00ed\u010dov\u00e9 technick\u00e9 specifikace<\/h3>\n<ul>\n<li><strong>Slo\u017een\u00ed<\/strong>: Co zbytek; Cr 27\u201330 %, Mo 5\u20136 %, C \u22640,25 %, Ni \u22643 %, Fe \u22643 % (stopov\u011b Si, Mn)<\/li>\n<li><strong>Struktura<\/strong>: kobaltov\u00e1 slitina s vyztu\u017een\u00edm karbidy (n\u00edzkouhl\u00edkov\u00e1, hou\u017eevnat\u00e1 jakost)<\/li>\n<li><strong>Tvrdost<\/strong>: \u2248 28\u201340 HRC (dle stavu)<\/li>\n<li><strong>Hustota<\/strong>: ~8,4 g\/cm\u00b3<\/li>\n<li><strong>Koroze\/Teplota<\/strong>: velmi dobr\u00e1 v chloridov\u00fdch\/chemick\u00fdch m\u00e9di\u00edch; stabiln\u00ed p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzk\u00e1 permeabilita; v podstat\u011b nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Odolnost v\u016f\u010di korozi &amp; kavitaci<\/strong> ve sm\u00ed\u0161en\u00fdch m\u00e9di\u00edch<\/li>\n<li><strong>Hou\u017eevnatost<\/strong> pro r\u00e1z a vibrace<\/li>\n<li><strong>N\u00edzk\u00e9 zad\u00edr\u00e1n\u00ed<\/strong> oproti ocel\u00edm a bronz\u016fm<\/li>\n<li><strong>Tepeln\u00e1 stabilita<\/strong> p\u0159i cyklov\u00e1n\u00ed<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplikace<\/h3>\n<ul>\n<li><strong>Ventily &amp; \u010derpadla<\/strong>: sedla, zp\u011btn\u00e9\/d\u00e1vkovac\u00ed kuli\u010dky<\/li>\n<li><strong>N\u00e1mo\u0159n\u00ed\/chemick\u00fd provoz<\/strong><\/li>\n<li><strong>P\u0159\u00edstrojov\u00e1 technika<\/strong> v agresivn\u00edch kapalin\u00e1ch<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f Kuli\u010dky z kobaltov\u00e9 slitiny #6 \u2013 univerz\u00e1ln\u00ed odolnost proti opot\u0159eben\u00ed &amp; korozi<\/h2>\n<p>Kuli\u010dky z kobaltov\u00e9 slitiny #6 (Co\u2013Cr\u2013W, klasick\u00e1 \u201e#6\u201c) jsou volbou pro kombinovanou odolnost proti opot\u0159eben\u00ed, korozi a teplot\u011b. D\u00edky vyv\u00e1\u017een\u00e9mu pod\u00edlu karbid\u016f si udr\u017euj\u00ed hladk\u00fd povrch a rozm\u011brovou stabilitu v abrazivn\u00edch, hork\u00fdch \u010di chloridov\u00fdch prost\u0159ed\u00edch.<\/p>\n<h3>\ud83d\udd27 Kl\u00ed\u010dov\u00e9 technick\u00e9 specifikace<\/h3>\n<ul>\n<li><strong>Slo\u017een\u00ed<\/strong>: Co zbytek; Cr 27\u201330 %, W 4\u20136 %, C ~1,0\u20131,4 % (Ni\/Fe \u22643 % ka\u017ed\u00fd; stopov\u011b Si, Mn)<\/li>\n<li><strong>Struktura<\/strong>: kobaltov\u00e1 matrice s rozpt\u00fdlen\u00fdmi karbidy (M\u2087C\u2083\/M\u2086C)<\/li>\n<li><strong>Tvrdost<\/strong>: \u2248 43\u201349 HRC (dle stavu odlitku\/kovan\u00e9ho)<\/li>\n<li><strong>Hustota<\/strong>: ~8,4 g\/cm\u00b3<\/li>\n<li><strong>Teplotn\u00ed schopnosti<\/strong>: tvrdost za tepla a odolnost proti oxidaci p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzk\u00e1 permeabilita; v podstat\u011b nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Vynikaj\u00edc\u00ed odolnost proti zad\u00edr\u00e1n\u00ed &amp; abrazi<\/strong><\/li>\n<li><strong>Korozn\u00ed odolnost<\/strong> v chloridech a chemik\u00e1li\u00edch<\/li>\n<li><strong>St\u00e1l\u00fd povrch<\/strong>: n\u00edzk\u00e9 t\u0159en\u00ed, hladk\u00fd chod<\/li>\n<li><strong>Tepeln\u00e1 robustnost<\/strong> pro cyklick\u00fd provoz<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplikace<\/h3>\n<ul>\n<li><strong>Ventily &amp; sedla<\/strong> pro kaly\/chemick\u00e1 m\u00e9dia<\/li>\n<li><strong>\u010cerpadla &amp; d\u00e1vkovac\u00ed<\/strong> prvky<\/li>\n<li><strong>Vysokoteplotn\u00ed mechanismy<\/strong><\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f Kuli\u010dky z kobaltov\u00e9 slitiny #3 \u2013 maxim\u00e1ln\u00ed odolnost proti abrazi &amp; erozi<\/h2>\n<p>Kuli\u010dky z kobaltov\u00e9 slitiny #3 (vysokouhl\u00edkov\u00e1 Co\u2013Cr\u2013W) poskytuj\u00ed velmi vysokou tvrdost a odolnost proti opot\u0159eben\u00ed za tepla pro t\u011b\u017ekou abrazi\/erozi. Udr\u017euj\u00ed hranu i povrch p\u0159i toku s p\u00edskem\/\u010d\u00e1sticemi a zaji\u0161\u0165uj\u00ed dlouhou \u017eivotnost tam, kde se oceli a bronzy rychle opot\u0159ebuj\u00ed.<\/p>\n<h3>\ud83d\udd27 Kl\u00ed\u010dov\u00e9 technick\u00e9 specifikace<\/h3>\n<ul>\n<li><strong>Slo\u017een\u00ed<\/strong>: Co zbytek; Cr 29\u201333 %, W 12\u201314 %, C 2,4\u20133,0 % (Ni\/Fe \u22643 % ka\u017ed\u00fd; stopov\u011b Si, Mn)<\/li>\n<li><strong>Struktura<\/strong>: tvrd\u00e1 kobaltov\u00e1 matrice s hustou karbidickou s\u00edt\u00ed<\/li>\n<li><strong>Tvrdost<\/strong>: \u2248 55\u201362 HRC (dle stavu)<\/li>\n<li><strong>Hustota<\/strong>: ~8,7\u20138,8 g\/cm\u00b3<\/li>\n<li><strong>Teplotn\u00ed schopnosti<\/strong>: vysok\u00e1 tvrdost za tepla; odolnost proti oxidaci<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzk\u00e1 permeabilita; v podstat\u011b nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Odolnost proti t\u011b\u017ek\u00e9mu opot\u0159eben\u00ed<\/strong> (abraze\/eroze)<\/li>\n<li><strong>N\u00edzk\u00e9 zad\u00edr\u00e1n\u00ed<\/strong> oproti ocel\u00edm<\/li>\n<li><strong>Tepeln\u00e1 stabilita<\/strong> pod zat\u00ed\u017een\u00edm a teplem<\/li>\n<li><strong>Dlouh\u00e1 \u017eivotnost<\/strong> v prost\u0159ed\u00edch s \u010d\u00e1sticemi<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplikace kuli\u010dek z kobaltov\u00e9 slitiny<\/h3>\n<ul>\n<li><strong>Ventily pro kaly &amp; p\u00edsek<\/strong><\/li>\n<li><strong>Rozpra\u0161ova\u010de &amp; trysky<\/strong> s tokem \u010d\u00e1stic<\/li>\n<li><strong>Vysoce nam\u00e1han\u00e1 sedla\/zp\u011btn\u00e9 kuli\u010dky<\/strong> v \u010derpadlech\/m\u011b\u0159idlech<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Dostupn\u00e9 jakosti &amp; velikosti<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Jakosti<\/strong>: ISO 3290, DIN 5401, AFBMA (ekvivalentn\u00ed tolerance)<\/a><\/li>\n<li><strong>Rozsah pr\u016fm\u011br\u016f<\/strong>: standardn\u00ed palcov\u00e9 i metrick\u00e9; na vy\u017e\u00e1d\u00e1n\u00ed nestandardn\u00ed\/zak\u00e1zkov\u00e9<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Kuli\u010dky z kobaltov\u00e9 slitiny (slitina #20) \u2013 hou\u017eevnat\u00e9, odoln\u00e9 proti kavitaci, p\u0159ipraven\u00e9 do korozn\u00edch prost\u0159ed\u00ed Kuli\u010dky z kobaltov\u00e9 slitiny (rodina Co\u2013Cr\u2013Mo) poskytuj\u00ed vynikaj\u00edc\u00ed odolnost v\u016f\u010di korozi a kavitaci p\u0159i dobr\u00e9 hou\u017eevnatosti. Nab\u00edzej\u00ed \u010dist\u00fd chod s n\u00edzk\u00fdm zad\u00edr\u00e1n\u00edm pro valiv\u00e9 a t\u011bsnic\u00ed prvky tam, kde se nerezov\u00e9 oceli d\u016flkuj\u00ed nebo opot\u0159ebov\u00e1vaj\u00ed\u2014ide\u00e1ln\u00ed pro ventily, \u010derpadla a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8735,"parent":1506,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1518","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 kobaltov\u00e9 slitiny #20, #19, #6, #3 \u2013 tvrdost a odolnost<\/title>\n<meta name=\"description\" content=\"Kuli\u010dky z kobaltov\u00e9 slitiny poskytuj\u00ed vysokou tvrdost, odolnost proti opot\u0159eben\u00ed a korozi, vhodn\u00e9 pro n\u00e1ro\u010dn\u00e9 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