{"id":3265,"date":"2021-01-21T09:52:03","date_gmt":"2021-01-21T08:52:03","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=3265"},"modified":"2025-10-12T14:16:13","modified_gmt":"2025-10-12T12:16:13","slug":"bile-din-safir","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/ro\/produsele\/bile-din-safir-si-rubin\/bile-din-safir\/","title":{"rendered":"Bile din safir"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Corundum\">Bile de safir \u2013 Componente de precizie de \u00eenalt\u0103 performan\u021b\u0103<\/a><\/h2>\n<p>Bile de safir sunt sfere de precizie realizate din safir sintetic (Al\u2082O\u2083), o form\u0103 cristalin\u0103 a corindonului. Renumite pentru duritatea lor excep\u021bional\u0103 \u2014 a doua dup\u0103 diamant \u2014 aceste bile ofer\u0103 o rezisten\u021b\u0103 remarcabil\u0103 la uzur\u0103, stabilitate dimensional\u0103 \u0219i rezilien\u021b\u0103 termic\u0103. Propriet\u0103\u021bile unice le fac indispensabile \u00een aplica\u021bii ce necesit\u0103 durabilitate \u0219i precizie, precum aerospa\u021bial, instrumenta\u021bie biomedical\u0103 \u0219i medii de vid \u00eenalt.<\/p>\n<h3>\ud83d\udd27 Specifica\u021bii tehnice cheie<\/h3>\n<ul>\n<li><strong>Structur\u0103 cristalin\u0103<\/strong>: Monocristalin\u0103 hexagonal\u0103 romboedric\u0103<\/li>\n<li><strong>Compozi\u021bie<\/strong>: Al\u2082O\u2083 (safir sintetic)<\/li>\n<li><strong>Puritate<\/strong>: 99,99%<\/li>\n<li><strong>Densitate<\/strong>: ~3,99 g\/cm\u00b3<\/li>\n<li><strong>Duritate Mohs<\/strong>: 9<\/li>\n<li><strong>Duritate Knoop<\/strong>: ~2200 (axa C), ~1800 (perpendicular pe axa C)<\/li>\n<li><strong>Modulul lui Young<\/strong>: ~440 GPa<\/li>\n<li><strong>Punct de topire<\/strong>: ~2050 \u00b0C<\/li>\n<li><strong>Conductivitate termic\u0103<\/strong>: ~40 W\/m\u00b7K la 300 K<\/li>\n<li><strong>Coeficient de dilatare termic\u0103<\/strong>: 6,2 \u00d7 10\u207b\u2076 \/\u00b0C (paralel cu axa C), 5,4 \u00d7 10\u207b\u2076 \/\u00b0C (perpendicular)<\/li>\n<li><strong>Rezistivitate electric\u0103<\/strong>: &gt;10\u00b9\u00b2 \u03a9\u00b7cm (izolator)<\/li>\n<li><strong>Constanta dielectric\u0103<\/strong>: 10,6 (paralel), 8,6 (perpendicular pe axa C)<\/li>\n<\/ul>\n<h3>\u2705 Avantaje<\/h3>\n<ul>\n<li><strong>Duritate \u0219i rezisten\u021b\u0103 la uzur\u0103 excep\u021bionale<\/strong>: Durat\u0103 de via\u021b\u0103 lung\u0103 \u00een medii cu frecare ridicat\u0103.<\/li>\n<li><strong>Stabilitate termic\u0103 ridicat\u0103<\/strong>: Operare eficient\u0103 p\u00e2n\u0103 la ~2050 \u00b0C.<\/li>\n<li><strong>Iner\u021bie chimic\u0103<\/strong>: Rezistente la majoritatea acizilor \u0219i bazelor.<\/li>\n<li><strong>Stabilitate dimensional\u0103<\/strong>: \u00ce\u0219i men\u021bin forma sub solicit\u0103ri mecanice \u0219i termice.<\/li>\n<li><strong>Izola\u021bie electric\u0103<\/strong>: Ideale pentru aplica\u021bii ce necesit\u0103 materiale neconductoare.<\/li>\n<li><strong>Transparen\u021b\u0103 optic\u0103<\/strong>: Util\u0103 acolo unde transparen\u021ba este esen\u021bial\u0103.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplica\u021bii pentru Bile din safir<\/h3>\n<p>Bilele de safir pentru rulmen\u021bi sunt utilizate \u00een diverse aplica\u021bii de \u00eenalt\u0103 precizie, inclusiv:<\/p>\n<ul>\n<li><strong>Rulmen\u021bi de precizie<\/strong>: Ceasuri mecanice, giroscoape \u0219i alte instrumente ce necesit\u0103 frecare redus\u0103 \u0219i durabilitate mare.<\/li>\n<li><strong>Sisteme optice<\/strong>: Conectori pentru fibre optice, sisteme laser \u0219i dispozitive de aliniere optic\u0103.<\/li>\n<li><strong>Instrumente de m\u0103sur\u0103<\/strong>: Debitmetre, scanere de coduri de bare \u0219i alte echipamente metrologice.<\/li>\n<li><strong>Dispozitive aerospa\u021biale \u0219i biomedicale<\/strong>: Medii ce cer fiabilitate \u0219i performan\u021b\u0103 ridicate.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Clase \u0219i dimensiuni disponibile<\/h3>\n<p>Bilele de safir pentru rulmen\u021bi sunt disponibile \u00een diverse clase \u0219i dimensiuni pentru a satisface cerin\u021bele specifice ale aplica\u021biei:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Clase<\/strong>: G1, G2, G3, G5, G10, p\u00e2n\u0103 la G25<\/a><\/li>\n<li><strong>Dimensiuni<\/strong>: Diametre \u00eentre 0,16 mm \u0219i 25 mm; dimensiuni personalizate la cerere.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Bile de safir \u2013 Componente de precizie de \u00eenalt\u0103 performan\u021b\u0103 Bile de safir sunt sfere de precizie realizate din safir sintetic (Al\u2082O\u2083), o form\u0103 cristalin\u0103 a corindonului. Renumite pentru duritatea lor excep\u021bional\u0103 \u2014 a doua dup\u0103 diamant \u2014 aceste bile ofer\u0103 o rezisten\u021b\u0103 remarcabil\u0103 la uzur\u0103, stabilitate dimensional\u0103 \u0219i rezilien\u021b\u0103 termic\u0103. Propriet\u0103\u021bile unice le [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9246,"parent":3261,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3265","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>Bile din safir duritate ridicat\u0103 \u0219i stabilitate pentru aplica\u021bii de precizie<\/title>\n<meta name=\"description\" content=\"Bile din safir ofer\u0103 duritate Mohs 9 rezisten\u021b\u0103 excelent\u0103 la uzur\u0103 \u0219i stabilitate termic\u0103, ideale pentru mecanisme optice \u0219i instrumente fine\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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