{"id":1746,"date":"2021-01-20T09:52:30","date_gmt":"2021-01-20T08:52:30","guid":{"rendered":"https:\/\/www.redhillballs.com\/produkty\/kulicky-z-barevnych-kovu-a-slitin\/stellite-kulicky-kobaltova-slitina\/"},"modified":"2025-10-24T16:41:45","modified_gmt":"2025-10-24T14:41:45","slug":"gulicky-z-kobaltovej-zliatiny","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/sk\/produkty\/gulicky-z-nezeleznych-kovov-a-zliatin\/gulicky-z-kobaltovej-zliatiny\/","title":{"rendered":"Guli\u010dky z kobaltovej zliatiny"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cobalt#Alloys\">Guli\u010dky z kobaltovej zliatiny (zliatina #20) \u2013 h\u00fa\u017eevnat\u00e9, odoln\u00e9 vo\u010di kavit\u00e1cii, pripraven\u00e9 do koroz\u00edvnych m\u00e9di\u00ed<\/a><\/h2>\n<p>Guli\u010dky z kobaltovej zliatiny (rodina Co\u2013Cr\u2013Mo) poskytuj\u00fa vynikaj\u00facu odolnos\u0165 proti kor\u00f3zii a kavit\u00e1cii pri dobrej h\u00fa\u017eevnatosti. Pon\u00fakaj\u00fa \u010dist\u00e9, s n\u00edzkym zadieran\u00edm, valiv\u00e9 a tesniace spr\u00e1vanie tam, kde nerezov\u00e9 ocele jamkovatej\u00fa alebo sa opotreb\u00favaj\u00fa\u2014ide\u00e1lne pre ventily, \u010derpadl\u00e1 a pr\u00edstroje v agres\u00edvnych kvapalin\u00e1ch.<\/p>\n<h3>\ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie<\/h3>\n<ul>\n<li><strong>Zlo\u017eenie<\/strong>: Co zvy\u0161ok; Cr 27\u201330 %, Mo 5\u20136 %, C \u22640,25 %, Ni \u22643 %, Fe \u22643 % (stopovo Si, Mn)<\/li>\n<li><strong>\u0160trukt\u00fara<\/strong>: kobaltov\u00e1 zliatina spevnen\u00e1 karbidmi (n\u00edzkouhl\u00edkov\u00fd, h\u00fa\u017eevnat\u00fd stupe\u0148)<\/li>\n<li><strong>Tvrdos\u0165<\/strong>: \u2248 28\u201340 HRC (z\u00e1visl\u00e9 od stavu)<\/li>\n<li><strong>Hustota<\/strong>: ~8,4 g\/cm\u00b3<\/li>\n<li><strong>Kor\u00f3zia\/Teplota<\/strong>: ve\u013emi dobr\u00e1 v chloridoch\/chemik\u00e1li\u00e1ch; stabiln\u00e9 pri zv\u00fd\u0161en\u00fdch teplot\u00e1ch<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzka priepustnos\u0165; prakticky nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Odolnos\u0165 vo\u010di kor\u00f3zii &amp; kavit\u00e1cii<\/strong> v zmie\u0161an\u00fdch m\u00e9di\u00e1ch<\/li>\n<li><strong>H\u00fa\u017eevnatos\u0165<\/strong> pre n\u00e1razy a vibr\u00e1cie<\/li>\n<li><strong>N\u00edzke zadieranie<\/strong> oproti oceliam a bronzom<\/li>\n<li><strong>Tepeln\u00e1 stabilita<\/strong> pri cyklovan\u00ed<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplik\u00e1cie pre Guli\u010dky z kobaltovej zliatiny<\/h3>\n<ul>\n<li><strong>Ventily &amp; \u010derpadl\u00e1<\/strong>: sedl\u00e1, sp\u00e4tn\u00e9\/d\u00e1vkovacie guli\u010dky<\/li>\n<li><strong>N\u00e1morn\u00e1\/chemick\u00e1 prev\u00e1dzka<\/strong><\/li>\n<li><strong>Pr\u00edstrojov\u00e1 technika<\/strong> v agres\u00edvnych kvapalin\u00e1ch<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f Kobaltov\u00e1 zliatina #6 \u2013 univerz\u00e1lna odolnos\u0165 proti opotrebeniu &amp; kor\u00f3zii<\/h2>\n<p>Guli\u010dky z kobaltovej zliatiny #6 (Co\u2013Cr\u2013W, klasick\u00e1 \u201e#6\u201c) s\u00fa z\u00e1kladnou vo\u013ebou pre kombinovan\u00fa odolnos\u0165 vo\u010di opotrebeniu, kor\u00f3zii a teplote. V\u010faka vyv\u00e1\u017een\u00e9mu podielu karbidov zachov\u00e1vaj\u00fa hladk\u00fd povrch a rozmerov\u00fa stabilitu v abraz\u00edvnych, hor\u00facich alebo chloridov\u00fdch prostrediach.<\/p>\n<h3>\ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie<\/h3>\n<ul>\n<li><strong>Zlo\u017eenie<\/strong>: Co zvy\u0161ok; Cr 27\u201330 %, W 4\u20136 %, C ~1,0\u20131,4 % (Ni\/Fe \u22643 % ka\u017ed\u00fd; stopovo Si, Mn)<\/li>\n<li><strong>\u0160trukt\u00fara<\/strong>: kobaltov\u00e1 matrica s dispergovan\u00fdmi karbidmi (M\u2087C\u2083\/M\u2086C)<\/li>\n<li><strong>Tvrdos\u0165<\/strong>: \u2248 43\u201349 HRC (z\u00e1visl\u00e9 od stavu \u2013 liaty\/tv\u00e1ren\u00fd)<\/li>\n<li><strong>Hustota<\/strong>: ~8,4 g\/cm\u00b3<\/li>\n<li><strong>Tepeln\u00e9 schopnosti<\/strong>: tvrdos\u0165 za tepla a odolnos\u0165 proti oxid\u00e1cii pri zv\u00fd\u0161en\u00fdch teplot\u00e1ch<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzka priepustnos\u0165; prakticky nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Vynikaj\u00faca odolnos\u0165 proti zadieraniu &amp; abr\u00e1zii<\/strong><\/li>\n<li><strong>Kor\u00f3zna odolnos\u0165<\/strong> v chloridoch a chemik\u00e1li\u00e1ch<\/li>\n<li><strong>Stabiln\u00fd povrch<\/strong>: n\u00edzke trenie, hladk\u00fd chod<\/li>\n<li><strong>Tepeln\u00e1 robustnos\u0165<\/strong> pre cyklick\u00fa prev\u00e1dzku<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplik\u00e1cie pre Guli\u010dky z kobaltovej zliatiny<\/h3>\n<ul>\n<li><strong>Ventily &amp; sedl\u00e1<\/strong> pre ka\u0161ovit\u00e1\/chemick\u00e1 m\u00e9dia<\/li>\n<li><strong>\u010cerpadl\u00e1 &amp; d\u00e1vkovacie prvky<\/strong><\/li>\n<li><strong>Vysokoteplotn\u00e9 mechanizmy<\/strong><\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f Kobaltov\u00e1 zliatina #3 \u2013 maxim\u00e1lna odolnos\u0165 proti abr\u00e1zii &amp; er\u00f3zii<\/h2>\n<p>Guli\u010dky z kobaltovej zliatiny #3 (vysokouhl\u00edkov\u00fd Co\u2013Cr\u2013W) prin\u00e1\u0161aj\u00fa ve\u013emi vysok\u00fa tvrdos\u0165 a v\u00fddr\u017e pri hor\u00facom opotreben\u00ed pre extr\u00e9mnu abr\u00e1ziu\/er\u00f3ziu. Udr\u017eiavaj\u00fa hranu a povrch v pr\u00fade s pieskom\/\u010dasticami, \u010d\u00edm poskytuj\u00fa dlh\u00fa \u017eivotnos\u0165 tam, kde ocele a bronzy r\u00fdchlo podliehaj\u00fa opotrebeniu.<\/p>\n<h3>\ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie<\/h3>\n<ul>\n<li><strong>Zlo\u017eenie<\/strong>: Co zvy\u0161ok; Cr 29\u201333 %, W 12\u201314 %, C 2,4\u20133,0 % (Ni\/Fe \u22643 % ka\u017ed\u00fd; stopovo Si, Mn)<\/li>\n<li><strong>\u0160trukt\u00fara<\/strong>: tvrd\u00e1 kobaltov\u00e1 matrica s hustou karbidovou sie\u0165ou<\/li>\n<li><strong>Tvrdos\u0165<\/strong>: \u2248 55\u201362 HRC (z\u00e1visl\u00e9 od stavu)<\/li>\n<li><strong>Hustota<\/strong>: ~8,7\u20138,8 g\/cm\u00b3<\/li>\n<li><strong>Tepeln\u00e9 schopnosti<\/strong>: vysok\u00e1 tvrdos\u0165 za tepla; odolnos\u0165 proti oxid\u00e1cii<\/li>\n<li><strong>Magnetick\u00e9<\/strong>: n\u00edzka priepustnos\u0165; prakticky nemagnetick\u00e9<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>Odolnos\u0165 proti \u0165a\u017ek\u00e9mu opotrebeniu<\/strong> (abr\u00e1zia\/er\u00f3zia)<\/li>\n<li><strong>N\u00edzke zadieranie<\/strong> v porovnan\u00ed s ocelami<\/li>\n<li><strong>Tepeln\u00e1 stabilita<\/strong> pri za\u0165a\u017een\u00ed a ohreve<\/li>\n<li><strong>Dlh\u00e1 \u017eivotnos\u0165<\/strong> v zrnitej\/\u010dasticovej prev\u00e1dzke<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplik\u00e1cie pre Guli\u010dky z kobaltovej zliatiny<\/h3>\n<ul>\n<li><strong>Ventily pre kaly &amp; piesok<\/strong><\/li>\n<li><strong>Rozpra\u0161ova\u010de &amp; d\u00fdzy<\/strong> pre pr\u00fady s \u010dasticami<\/li>\n<li><strong>Vysoko nam\u00e1han\u00e9 sedl\u00e1\/sp\u00e4tn\u00e9 prvky<\/strong> v \u010derpadl\u00e1ch\/meradl\u00e1ch<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Dostupn\u00e9 triedy &amp; ve\u013ekosti<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Triedy<\/strong>: ISO 3290, DIN 5401, AFBMA (ekvivalentn\u00e9 tolerancie)<\/a><\/li>\n<li><strong>Rozsah priemerov<\/strong>: \u0161tandardn\u00e9 palcov\u00e9 a metrick\u00e9 ve\u013ekosti; ne\u0161tandardn\u00e9\/na mieru na po\u017eiadanie<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Guli\u010dky z kobaltovej zliatiny (zliatina #20) \u2013 h\u00fa\u017eevnat\u00e9, odoln\u00e9 vo\u010di kavit\u00e1cii, pripraven\u00e9 do koroz\u00edvnych m\u00e9di\u00ed Guli\u010dky z kobaltovej zliatiny (rodina Co\u2013Cr\u2013Mo) poskytuj\u00fa vynikaj\u00facu odolnos\u0165 proti kor\u00f3zii a kavit\u00e1cii pri dobrej h\u00fa\u017eevnatosti. Pon\u00fakaj\u00fa \u010dist\u00e9, s n\u00edzkym zadieran\u00edm, valiv\u00e9 a tesniace spr\u00e1vanie tam, kde nerezov\u00e9 ocele jamkovatej\u00fa alebo sa opotreb\u00favaj\u00fa\u2014ide\u00e1lne pre ventily, \u010derpadl\u00e1 a pr\u00edstroje v [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8743,"parent":1736,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1746","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>Guli\u010dky z kobaltovej zliatiny \u2013 ventily, lo\u017eisk\u00e1, \u010derpadl\u00e1<\/title>\n<meta name=\"description\" content=\"Guli\u010dky z kobaltovej zliatiny pre gu\u013eov\u00e9 ventily, mie\u0161adl\u00e1 a prietokomery v petrochemickej v\u00fdrobe odolnos\u0165 proti 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