{"id":2045,"date":"2025-08-29T01:57:37","date_gmt":"2025-08-29T01:57:37","guid":{"rendered":"https:\/\/nbaem.com\/?p=2045"},"modified":"2025-08-29T02:11:06","modified_gmt":"2025-08-29T02:11:06","slug":"magnet-grades-pull-force-gauss-magnet-strength-and-n-numbers","status":"publish","type":"post","link":"https:\/\/nbaem.com\/cs\/magnet-grades-pull-force-gauss-magnet-strength-and-n-numbers\/","title":{"rendered":"Pr\u016fvodce t\u0159\u00eddami magnet\u016f, ta\u017en\u00e1 s\u00edla, gaussova intenzita a N \u010d\u00edsla"},"content":{"rendered":"<h2>Co jsou magnetick\u00e9 t\u0159\u00eddy<\/h2>\n<p>Magnetick\u00e9 t\u0159\u00eddy jsou zp\u016fsob, jak klasifikovat s\u00edlu a vlastnosti materi\u00e1lu pevn\u00fdch magnet\u016f. Nap\u0159\u00edklad b\u011b\u017en\u00e9 t\u0159\u00eddy neodymov\u00fdch magnet\u016f zahrnuj\u00ed <strong>N35, N42 a N52<\/strong>, kde je <strong>\u201eN\u201c<\/strong> znamen\u00e1 <em>neodym<\/em>, a \u010d\u00edslo p\u0159edstavuje magnetov\u00e9 <strong>maxim\u00e1ln\u00ed energetick\u00fd produkt<\/strong> (BHmax) \u2014 m\u011b\u0159\u00edtko toho, kolik magnetick\u00e9 energie materi\u00e1l dok\u00e1\u017ee ulo\u017eit. Obecn\u011b plat\u00ed, <strong>vy\u0161\u0161\u00ed \u010d\u00edsla znamenaj\u00ed siln\u011bj\u0161\u00ed magnety<\/strong>, za p\u0159edpokladu stejn\u00e9 velikosti a tvaru.<\/p>\n<p>T\u0159\u00edda nejen odr\u00e1\u017e\u00ed <strong>magnetick\u00e1 s\u00edla<\/strong> ale tak\u00e9 <strong>slo\u017een\u00ed materi\u00e1lu<\/strong> a v\u00fdkonov\u00e9 vlastnosti, v\u010detn\u011b tolerance teploty a odolnosti proti demagnetizaci.<\/p>\n<p>Zde je rychl\u00fd p\u0159ehled obl\u00edben\u00fdch typ\u016f magnet\u016f a jejich typick\u00fdch t\u0159\u00edd:<\/p>\n<ul>\n<li><strong>Neodym (NdFeB)<\/strong> \u2013 Nejv\u00fdkonn\u011bj\u0161\u00ed komer\u010dn\u011b dostupn\u00e9 permanentn\u00ed magnety; t\u0159\u00eddy se obvykle pohybuj\u00ed od <strong>N35 do N52<\/strong>.<\/li>\n<li><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/cs\/products\/ceramic-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong>Ferrit (keramick\u00fd)<\/strong> <\/a><\/span>\u2013 N\u00e1kladov\u011b efektivn\u00ed a odoln\u00e9 v\u016f\u010di korozi; t\u0159\u00eddy jako <strong>C5 nebo C8<\/strong>.<\/li>\n<li><strong>Alnico<\/strong> \u2013 Vynikaj\u00edc\u00ed teplotn\u00ed stabilita, vhodn\u00e9 pro vysokoteplotn\u00ed aplikace; t\u0159\u00eddy jako <strong>Alnico 5<\/strong> or <strong>Alnico 8<\/strong>.<\/li>\n<li><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/cs\/products\/samarium-cobalt-magnets\/\" target=\"_blank\" rel=\"noopener\"><strong>Samarium Kobalt (SmCo)<\/strong> <\/a><\/span>\u2013 Vysok\u00e1 pevnost s vynikaj\u00edc\u00ed odolnost\u00ed v\u016f\u010di teplot\u00e1m a korozi; t\u0159\u00eddy b\u011b\u017en\u011b od <strong>SmCo 16 do SmCo 32<\/strong>.<\/li>\n<\/ul>\n<p>Porozum\u011bn\u00ed t\u0159\u00edd\u00e1m magnet\u016f pom\u00e1h\u00e1 p\u0159i v\u00fdb\u011bru spr\u00e1vn\u00e9ho materi\u00e1lu pro va\u0161i aplikaci \u2014 a\u0165 u\u017e pot\u0159ebujete maxim\u00e1ln\u00ed s\u00edlu, vysokou odolnost v\u016f\u010di teplu, n\u00e1kladovou efektivitu nebo odolnost v n\u00e1ro\u010dn\u00fdch prost\u0159ed\u00edch.<\/p>\n<h2>Porozum\u011bn\u00ed ta\u017en\u00e9 s\u00edle Co to znamen\u00e1 a pro\u010d je d\u016fle\u017eit\u00e1<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/magnet_pull_force_measurement_j0MTvbaS9.webp\" alt=\"m\u011b\u0159en\u00ed tahov\u00e9 s\u00edly magnetu\" \/><\/p>\n<p>Tahov\u00e1 s\u00edla je mno\u017estv\u00ed hmotnosti, kterou magnet dok\u00e1\u017ee udr\u017eet, ne\u017e se odlep\u00ed od ocelov\u00e9ho povrchu. Obvykle se m\u011b\u0159\u00ed v <strong>libr\u00e1ch<\/strong> or <strong>kilogramech<\/strong>. Jedn\u00e1 se o jeden z nejprakti\u010dt\u011bj\u0161\u00edch zp\u016fsob\u016f porovn\u00e1n\u00ed s\u00edly magnetu, proto\u017ee odr\u00e1\u017e\u00ed skute\u010dnou schopnost dr\u017een\u00ed, nikoli pouze laboratorn\u00ed m\u011b\u0159en\u00ed.<\/p>\n<p>Tahov\u00e1 s\u00edla z\u00e1vis\u00ed na n\u011bkolika hlavn\u00edch faktorech:<\/p>\n<ul>\n<li><strong>Velikost magnetu<\/strong> \u2013 V\u011bt\u0161\u00ed magnety maj\u00ed obecn\u011b v\u011bt\u0161\u00ed dr\u017e\u00edc\u00ed s\u00edlu.<\/li>\n<li><strong>T\u0159\u00edda magnetu (\u010d\u00edslo N)<\/strong> \u2013 Vy\u0161\u0161\u00ed t\u0159\u00eddy jako N52 mohou vyvinout v\u011bt\u0161\u00ed tahovou s\u00edlu ve srovn\u00e1n\u00ed s ni\u017e\u0161\u00edmi t\u0159\u00eddami jako N35, za p\u0159edpokladu stejn\u00e9 velikosti.<\/li>\n<li><strong>Kontaktn\u00ed plocha<\/strong> \u2013 Hladk\u00fd, \u010dist\u00fd ocelov\u00fd povrch poskytuje nejvy\u0161\u0161\u00ed tahovou s\u00edlu. Jak\u00e1koli mezera, n\u00e1t\u011br nebo rez sn\u00ed\u017e\u00ed jej\u00ed hodnotu.<\/li>\n<\/ul>\n<p>V pr\u016fmyslu jsou hodnocen\u00ed tahov\u00e9 s\u00edly d\u016fle\u017eit\u00e1 pro pr\u00e1ce jako <strong>zved\u00e1n\u00ed t\u011b\u017ek\u00fdch ocelov\u00fdch plech\u016f, upev\u0148ov\u00e1n\u00ed n\u00e1stroj\u016f nebo dr\u017een\u00ed upev\u0148ovac\u00edch prvk\u016f<\/strong> na m\u00edst\u011b. Pro spot\u0159ebitele je to stejn\u011b d\u016fle\u017eit\u00e9 \u2013 nap\u0159\u00edklad <strong>mont\u00e1\u017e p\u0159edm\u011bt\u016f, tvorba magnetick\u00fdch uz\u00e1v\u011br\u016f nebo dom\u00e1c\u00ed kutily<\/strong>.<\/p>\n<p>P\u0159i kontrole parametr\u016f magnetu si pamatujte: uv\u00e1d\u011bn\u00e1 tahov\u00e1 s\u00edla je obvykle m\u011b\u0159ena za ide\u00e1ln\u00edch laboratorn\u00edch podm\u00ednek. V re\u00e1ln\u00e9m pou\u017eit\u00ed lze o\u010dek\u00e1vat, \u017ee skute\u010dn\u00e1 dr\u017e\u00edc\u00ed s\u00edla bude ni\u017e\u0161\u00ed kv\u016fli povrchov\u00fdm podm\u00ednk\u00e1m nebo dodate\u010dn\u00e9mu odstupu. Pokud v\u00e1\u0161 projekt vy\u017eaduje specifickou dr\u017e\u00edc\u00ed s\u00edlu, pou\u017eijte hodnotu tahov\u00e9 s\u00edly jako vod\u00edtko a p\u0159idejte bezpe\u010dnostn\u00ed rezervu.<\/p>\n<h2>Gaussova magnetick\u00e1 s\u00edla M\u011b\u0159en\u00ed magnetick\u00e9ho pole<\/h2>\n<p><strong>Gauss<\/strong> je jednotka, kter\u00e1 n\u00e1m \u0159\u00edk\u00e1, jak siln\u00e9 je magnetick\u00e9 pole na konkr\u00e9tn\u00edm m\u00edst\u011b. P\u0159i m\u011b\u0159en\u00ed s\u00edly magnetu \u010dasto sledujeme dv\u011b hlavn\u00ed hodnoty:<\/p>\n<ul>\n<li><strong>Povrchov\u00e1 Gaussova hodnota<\/strong> \u2013 magnetick\u00e9 pole m\u011b\u0159en\u00e9 p\u0159\u00edmo na povrchu magnetu pomoc\u00ed gaussmetru.<\/li>\n<li><strong>Rezidu\u00e1ln\u00ed hustota toku (Br)<\/strong> \u2013 maxim\u00e1ln\u00ed magnetick\u00e1 energie, kterou materi\u00e1l m\u016f\u017ee uchovat, m\u011b\u0159en\u00e1 v kilogaus\u00edch (kG) nebo tesl\u00e1ch (T) v laboratorn\u00edch podm\u00ednk\u00e1ch.<\/li>\n<\/ul>\n<p>Surface gauss je to, co uvid\u00edte v re\u00e1ln\u00fdch m\u011b\u0159en\u00edch, zat\u00edmco Br je vlastnost materi\u00e1lu pou\u017e\u00edvan\u00e1 pro srovn\u00e1v\u00e1n\u00ed t\u0159\u00edd b\u011bhem v\u00fdroby.<\/p>\n<h3>Pro\u010d je d\u016fle\u017eit\u00fd Gauss<\/h3>\n<p>M\u011b\u0159en\u00ed gauss v\u00e1m pom\u016f\u017ee:<\/p>\n<ul>\n<li>Porovnat s\u00edlu magnetu p\u0159ed n\u00e1kupem<\/li>\n<li>Vybrat spr\u00e1vn\u00fd magnet pro va\u0161i aplikaci<\/li>\n<li>Odhadnout p\u0159ilnavou s\u00edlu spolu s velikost\u00ed a t\u0159\u00eddou<\/li>\n<\/ul>\n<p>To je obzvl\u00e1\u0161\u0165 d\u016fle\u017eit\u00e9 pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed, elektroniku, motory a magnetick\u00e9 senzory, kde p\u0159\u00edmo ovliv\u0148uje v\u00fdkon.<\/p>\n<h3>Typick\u00e1 povrchov\u00e1 Gaussova hodnota podle typu magnetu<\/h3>\n<table>\n<thead>\n<tr>\n<th>Typ magnetu<\/th>\n<th>Obvykl\u00fd rozsah t\u0159\u00edd<\/th>\n<th>P\u0159ibli\u017en\u00fd povrchov\u00fd gauss*<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodym<\/td>\n<td>N35 \u2013 N52<\/td>\n<td>2 000 \u2013 6 000 G<\/td>\n<\/tr>\n<tr>\n<td>Ferrit (keramick\u00fd)<\/td>\n<td>C5 \u2013 C8<\/td>\n<td>1 500 \u2013 3 900 G<\/td>\n<\/tr>\n<tr>\n<td>Samarium Kobalt<\/td>\n<td>18 \u2013 30<\/td>\n<td>2 000 \u2013 5 000 G<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td>2 \u2013 9<\/td>\n<td>800 \u2013 1 200 G<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>*Povrchov\u00fd gauss se li\u0161\u00ed podle velikosti, tvaru a uspo\u0159\u00e1d\u00e1n\u00ed p\u00f3l\u016f.<\/p>\n<h2>Dek\u00f3dov\u00e1n\u00ed \u010d\u00edsel N Co znamenaj\u00ed<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Neodymium_Magnet_N_Grades_Guide_x0GfgyQrA.webp\" alt=\"Pr\u016fvodce t\u0159\u00eddami neodymov\u00fdch magnet\u016f\" \/><\/p>\n<p>Kdy\u017e nakupujete neodymov\u00e9 magnety, \u010dasto uvid\u00edte t\u0159\u00eddy jako <strong>N35, N42, N52<\/strong>. Tyto <strong>N \u010d\u00edsel<\/strong> ukazuje, jak siln\u00fd je magnetick\u00fd materi\u00e1l. \u201eN\u201c znamen\u00e1 neodym a \u010d\u00edslo odkazuje na <strong>maxim\u00e1ln\u00ed energetick\u00fd produkt (BHmax)<\/strong> \u2014 v podstat\u011b, kolik magnetick\u00e9 energie m\u016f\u017ee materi\u00e1l ulo\u017eit. Vy\u0161\u0161\u00ed \u010d\u00edsla znamenaj\u00ed siln\u011bj\u0161\u00ed potenci\u00e1ln\u00ed p\u0159ita\u017elivost, za p\u0159edpokladu stejn\u00e9 velikosti a tvaru.<\/p>\n<p>Nap\u0159\u00edklad:<\/p>\n<ul>\n<li><strong>N35<\/strong> je cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed t\u0159\u00edda pro v\u0161eobecn\u00e9 pou\u017eit\u00ed.<\/li>\n<li><strong>N42<\/strong> nab\u00edz\u00ed vyv\u00e1\u017eenou s\u00edlu a cenu.<\/li>\n<li><strong>N52<\/strong> je jednou z nejsiln\u011bj\u0161\u00edch t\u0159\u00edd ve standardn\u00ed v\u00fdrob\u011b \u2014 ide\u00e1ln\u00ed, kdy\u017e pot\u0159ebujete maxim\u00e1ln\u00ed s\u00edlu na mal\u00e9m prostoru.<\/li>\n<\/ul>\n<p>\u010c\u00edslo N tak\u00e9 ovliv\u0148uje v\u00fdkon:<\/p>\n<ul>\n<li><strong>Tahov\u00e1 s\u00edla<\/strong> \u2013 Vy\u0161\u0161\u00ed t\u0159\u00eddy N poskytuj\u00ed siln\u011bj\u0161\u00ed tahov\u00e9 s\u00edly p\u0159i stejn\u00e9 velikosti magnetu.<\/li>\n<li><strong>Odolnost v\u016f\u010di teplot\u00e1m<\/strong> \u2013 Standardn\u00ed magnety N za\u010d\u00ednaj\u00ed ztr\u00e1cet s\u00edlu nad 80\u00b0C (176\u00b0F). Pro vy\u0161\u0161\u00ed teploty je t\u0159eba speci\u00e1ln\u00edch vysokoteplotn\u00edch t\u0159\u00edd, jako jsou N42SH nebo N35EH.<\/li>\n<li><strong>Odolnost<\/strong> \u2013 Povrchov\u00e1 \u00faprava (nikl, epoxid atd.) chr\u00e1n\u00ed proti korozi, nikoliv samotn\u00e9 N t\u0159\u00eddy \u2014 ale magnety vy\u0161\u0161\u00ed t\u0159\u00eddy by m\u011bly b\u00fdt st\u00e1le opatrn\u011b zach\u00e1zeny, proto\u017ee jsou k\u0159ehk\u00e9.<\/li>\n<\/ul>\n<p>Zde je rychl\u00fd p\u0159ehled b\u011b\u017en\u00fdch N t\u0159\u00edd a jejich v\u00fdznamu:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>T\u0159\u00edda<\/strong><\/th>\n<th><strong>BHmax (MGOe)<\/strong><\/th>\n<th><strong>Relativn\u00ed s\u00edla<\/strong><\/th>\n<th><strong>Typick\u00e9 pou\u017eit\u00ed<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>N35<\/td>\n<td>33\u201335<\/td>\n<td>Standardn\u00ed<\/td>\n<td>\u0158emesla, osv\u011btlen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>N42<\/td>\n<td>40\u201342<\/td>\n<td>Siln\u00e9<\/td>\n<td>N\u00e1stroje, spot\u0159ebn\u00ed v\u00fdrobky<\/td>\n<\/tr>\n<tr>\n<td>N48<\/td>\n<td>46\u201348<\/td>\n<td>Velmi siln\u00fd<\/td>\n<td>Motory, pr\u016fmyslov\u00e9 za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>N52<\/td>\n<td>50\u201353<\/td>\n<td>Maxim\u00e1ln\u00ed standard<\/td>\n<td>Magnetick\u00e9 svorky, kompaktn\u00ed designy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Porozum\u011bn\u00ed N \u010d\u00edsl\u016fm v\u00e1m pom\u00e1h\u00e1 vybrat spr\u00e1vn\u00fd <strong>t\u0159\u00eddu neodymov\u00e9ho magnetu<\/strong> pro va\u0161e pot\u0159eby ta\u017en\u00e9 s\u00edly, pracovn\u00ed teplotu a pou\u017eit\u00ed. V\u00fdb\u011br spr\u00e1vn\u00e9ho zaji\u0161\u0165uje v\u00fdkon bez nadm\u011brn\u00e9ho v\u00fddaje.<\/p>\n<h2>Jak t\u0159\u00edda magnetu ovliv\u0148uje v\u00fdkon Re\u00e1ln\u00e9 aplikace<\/h2>\n<p>T\u0159\u00edda magnetu m\u00e1 velk\u00fd vliv na v\u00fdkon magnetu, zejm\u00e9na pokud jde o s\u00edlu, odolnost a vhodnost pro konkr\u00e9tn\u00ed pr\u00e1ce. V \u010cesk\u00e9 republice si r\u016fzn\u00e9 pr\u016fmyslov\u00e9 odv\u011btv\u00ed vyb\u00edraj\u00ed t\u0159\u00eddy na z\u00e1klad\u011b v\u00fdkonov\u00fdch pot\u0159eb a provozn\u00edch podm\u00ednek.<\/p>\n<p>Nap\u0159\u00edklad:<\/p>\n<ul>\n<li><strong>Motory a gener\u00e1tory<\/strong> \u2013 Vysoce kvalitn\u00ed neodymov\u00e9 magnety jako <strong>N52<\/strong> se \u010dasto pou\u017e\u00edvaj\u00ed pro kompaktn\u00ed designy, kter\u00e9 vy\u017eaduj\u00ed maxim\u00e1ln\u00ed to\u010div\u00fd moment na mal\u00e9m prostoru.<\/li>\n<li><strong>Senzory a automatizace<\/strong> \u2013 Ni\u017e\u0161\u00ed t\u0159\u00eddy jako <strong>N35 nebo N38<\/strong> jsou dosta\u010duj\u00edc\u00ed pro p\u0159esn\u00e9 sn\u00edm\u00e1n\u00ed, ani\u017e by byly p\u0159\u00edli\u0161 siln\u00e9 na ovlivn\u011bn\u00ed okoln\u00edch sou\u010d\u00e1st\u00ed.<\/li>\n<li><strong>Magnetick\u00e9 separ\u00e1tory<\/strong> \u2013 Pr\u016fmyslov\u00e9 separ\u00e1tory mohou pou\u017e\u00edvat <strong>N42\u2013N50<\/strong> pro silnou ta\u017enou s\u00edlu k odstran\u011bn\u00ed kovov\u00fdch kontaminant\u016f na dopravn\u00edc\u00edch p\u00e1sov\u00fdch link\u00e1ch.<\/li>\n<li><strong>Elektronika<\/strong> \u2013 Za\u0159\u00edzen\u00ed jako reproduktory, pevn\u00e9 disky a bezdr\u00e1tov\u00e9 nab\u00edje\u010dky \u010dasto pou\u017e\u00edvaj\u00ed p\u0159izp\u016fsoben\u00e9 t\u0159\u00eddy N pro efektivitu a omezen\u00ed velikosti.<\/li>\n<li><strong>DIY a hobby projekty<\/strong> \u2013 Tv\u016frci mohou zvolit <strong>N35 nebo N42<\/strong> pro n\u00e1kladovou efektivitu, kdy\u017e nen\u00ed pot\u0159eba extr\u00e9mn\u00ed ta\u017en\u00e1 s\u00edla.<\/li>\n<\/ul>\n<p>P\u0159i\u0159azen\u00ed magnetick\u00e9 t\u0159\u00eddy k pou\u017eit\u00ed je kl\u00ed\u010dov\u00e9. Vy\u0161\u0161\u00ed \u010d\u00edslo N nen\u00ed v\u017edy lep\u0161\u00ed \u2014 p\u0159\u00edli\u0161 siln\u00fd magnet m\u016f\u017ee zp\u016fsobit probl\u00e9my s manipulac\u00ed, p\u0159it\u00e1hnout ne\u017e\u00e1douc\u00ed p\u0159edm\u011bty nebo dokonce po\u0161kodit za\u0159\u00edzen\u00ed. Spr\u00e1vn\u00e1 t\u0159\u00edda vyva\u017euje tahovou s\u00edlu, gaussovu intenzitu, odolnost v\u016f\u010di teplot\u00e1m a n\u00e1klady na danou pr\u00e1ci.<\/p>\n<h2>Dal\u0161\u00ed faktory ovliv\u0148uj\u00edc\u00ed s\u00edlu a v\u00fdkon magnetu<\/h2>\n<p>Magnetick\u00e1 t\u0159\u00edda a typ jsou d\u016fle\u017eit\u00e9, ale jsou jen sou\u010d\u00e1st\u00ed celkov\u00e9ho obrazu. N\u011bkter\u00e9 dal\u0161\u00ed faktory hraj\u00ed velkou roli v tom, jak siln\u00fd magnet ve skute\u010dnosti bude v re\u00e1ln\u00e9m pou\u017eit\u00ed.<\/p>\n<p><strong>1. Velikost a tvar<\/strong><\/p>\n<ul>\n<li>V\u011bt\u0161\u00ed magnety maj\u00ed obecn\u011b v\u011bt\u0161\u00ed tahovou s\u00edlu, proto\u017ee obsahuj\u00ed v\u00edce materi\u00e1lu produkuj\u00edc\u00edho pole.<\/li>\n<li>Tvar ovliv\u0148uje, jak je pole rozlo\u017eeno. Nap\u0159\u00edklad tenk\u00fd disk nebude p\u0159itahovat stejn\u011b jako siln\u00fd blok, i kdy\u017e maj\u00ed stejnou t\u0159\u00eddu.<\/li>\n<\/ul>\n<p><strong>2. Povrchov\u00e1 \u00faprava<\/strong><\/p>\n<ul>\n<li>Povrchov\u00e9 \u00fapravy (jako nikl, epoxid nebo guma) chr\u00e1n\u00ed magnety p\u0159ed reziv\u011bn\u00edm a mechanick\u00fdm opot\u0159eben\u00edm, zvl\u00e1\u0161t\u011b neodymiov\u00e9, kter\u00e9 se snadno koroduj\u00ed.<\/li>\n<li>A\u010dkoli povrchov\u00e1 \u00faprava nezvy\u0161uje magnetickou s\u00edlu, m\u016f\u017ee pomoci udr\u017eet v\u00fdkon v \u010dase t\u00edm, \u017ee zabr\u00e1n\u00ed po\u0161kozen\u00ed.<\/li>\n<\/ul>\n<p><strong>3. Hodnocen\u00ed teploty<\/strong><\/p>\n<ul>\n<li>Ka\u017ed\u00fd magnet m\u00e1 maxim\u00e1ln\u00ed provozn\u00ed teplotu. Kdy\u017e se p\u0159eh\u0159eje, m\u016f\u017ee ztratit s\u00edlu \u2014 n\u011bkdy trvale.<\/li>\n<li>Vy\u0161\u0161\u00ed t\u0159\u00eddy ne v\u017edy znamenaj\u00ed vy\u0161\u0161\u00ed odolnost v\u016f\u010di teplu. Nap\u0159\u00edklad standardn\u00ed neodymiov\u00e9 t\u0159\u00eddy N za\u010d\u00ednaj\u00ed ztr\u00e1cet v\u00fdkon kolem 80\u00b0C, ale vysokoteplotn\u00ed t\u0159\u00eddy jako N35SH zvl\u00e1dnou a\u017e 150\u00b0C.<\/li>\n<\/ul>\n<p><strong>4. Podm\u00ednky prost\u0159ed\u00ed a riziko demagnetizace<\/strong><\/p>\n<ul>\n<li>Siln\u00e1 protich\u016fdn\u00e1 magnetick\u00e1 pole, teplo nebo t\u011b\u017ek\u00fd mechanick\u00fd stres mohou zp\u016fsobit ztr\u00e1tu \u010d\u00e1sti nebo cel\u00e9 magnetizace magnetu.<\/li>\n<li>Pro venkovn\u00ed pou\u017eit\u00ed nebo vystaven\u00ed vlhkosti jsou vhodn\u011bj\u0161\u00ed povrchov\u00e9 \u00fapravy odoln\u00e9 proti korozi nebo materi\u00e1ly jako samarium-kobalt.<\/li>\n<\/ul>\n<p>P\u0159i v\u00fdb\u011bru magnetu je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti tyto faktory, aby nedo\u0161lo k zakoupen\u00ed nespr\u00e1vn\u00e9ho typu pro v\u00e1\u0161 projekt \u2014 a\u0165 u\u017e jde o pr\u016fmyslov\u00e9 stroje, hobby stavby nebo zak\u00e1zkov\u00e9 upevn\u011bn\u00ed.<\/p>\n<h2>Pro\u010d si vybrat kvalitn\u00ed magnetick\u00e9 materi\u00e1ly NBAEM a odborn\u00e9 veden\u00ed<\/h2>\n<p>Kdy\u017e pracujete s magnety, spr\u00e1vn\u00e1 t\u0159\u00edda, tahov\u00e1 s\u00edla a gaussova hodnota jsou kl\u00ed\u010dov\u00e9. <strong>NBAEM<\/strong> nab\u00edz\u00ed kompletn\u00ed sortiment magnetick\u00fdch materi\u00e1l\u016f \u2013 od <strong>neodymia (N35\u2013N52)<\/strong> po ferrit, alnico a samarium-kobalt, v r\u016fzn\u00fdch tvarech, velikostech a povrchov\u00fdch \u00faprav\u00e1ch, aby vyhovovaly r\u016fzn\u00fdm aplikac\u00edm.<\/p>\n<h3>\u0160irok\u00fd sortiment produkt\u016f podle t\u0159\u00eddy a typu<\/h3>\n<p>M\u00e1me skladem magnety pro lehk\u00e9 spot\u0159ebn\u00ed produkty a\u017e po t\u011b\u017ek\u00e9 pr\u016fmyslov\u00e9 pou\u017eit\u00ed <strong>pr\u016fmyslov\u00e9 a stroj\u00edrensk\u00e9 pou\u017eit\u00ed<\/strong>. Mo\u017enosti zahrnuj\u00ed:<\/p>\n<ul>\n<li><strong>Neodymov\u00e9 magnety<\/strong> \u2013 vysok\u00e1 tahov\u00e1 s\u00edla, kompaktn\u00ed velikost<\/li>\n<li><strong>Ferritov\u00e9 magnety<\/strong> \u2013 n\u00e1kladov\u011b efektivn\u00ed, odoln\u00e9 proti korozi<\/li>\n<li><strong>Magnety Alnico<\/strong> \u2013 vynikaj\u00edc\u00ed teplotn\u00ed stabilita<\/li>\n<li><strong>Samarium kobalt<\/strong> \u2013 vysok\u00e1 pevnost, extr\u00e9mn\u00ed odolnost v\u016f\u010di teplot\u00e1m<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Typ magnetu<\/th>\n<th>Typick\u00e9 t\u0159\u00eddy<\/th>\n<th>Kl\u00ed\u010dov\u00e9 v\u00fdhody<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodym<\/td>\n<td>N35\u2013N52<\/td>\n<td>Nejvy\u0161\u0161\u00ed tahov\u00e1 s\u00edla, mal\u00e1 velikost<\/td>\n<\/tr>\n<tr>\n<td>Ferrit<\/td>\n<td>Y30\u2013Y35<\/td>\n<td>N\u00edzk\u00e1 cena, odoln\u00e9 proti korozi<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td>Alnico 5\u20138<\/td>\n<td>Vysok\u00e1 teplotn\u00ed stabilita<\/td>\n<\/tr>\n<tr>\n<td>Samarium Kobalt<\/td>\n<td>18\u201332 MGOe<\/td>\n<td>Odolnost v\u016f\u010di teplu a korozi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kontrola kvality a p\u0159izp\u016fsoben\u00ed na m\u00edru<\/h3>\n<p>NBAEM klade velk\u00fd d\u016fraz na <strong>p\u0159esnou kontrolu tolerance<\/strong> a <strong>konzistentn\u00ed magnetickou s\u00edlu<\/strong>. Ka\u017ed\u00e1 \u0161ar\u017ee je testov\u00e1na na tahovou s\u00edlu a gauss, aby splnila specifikace. Nab\u00edz\u00edme tak\u00e9 <strong>vlastn\u00ed tvary, velikosti a povlaky<\/strong> aby byl v\u00e1\u0161 magnet p\u0159ipraven pro va\u0161e re\u00e1ln\u00e9 pou\u017eit\u00ed, a\u0165 u\u017e je to pro <strong>motor, senzor, magnetick\u00fd separ\u00e1tor nebo DIY projekt<\/strong>.<\/p>\n<h3>Odborn\u00e9 veden\u00ed p\u0159i v\u00fdb\u011bru spr\u00e1vn\u00e9ho magnetu<\/h3>\n<p>Spr\u00e1vn\u00fd v\u00fdb\u011br magnet\u016f nen\u00ed jen o v\u00fdb\u011bru nejvy\u0161\u0161\u00edho \u010d\u00edsla N. Spolupracujeme s v\u00e1mi na slad\u011bn\u00ed:<\/p>\n<ul>\n<li><strong>T\u0159\u00edda magnetu<\/strong> s pevnost\u00ed a n\u00e1klady<\/li>\n<li><strong>Tahov\u00e1 s\u00edla<\/strong> s va\u0161imi po\u017eadavky na zat\u00ed\u017een\u00ed nebo uchopen\u00ed<\/li>\n<li><strong>Gaussovy \u00farovn\u011b<\/strong> s p\u0159esnost\u00ed, kterou va\u0161e pr\u00e1ce vy\u017eaduje<\/li>\n<li><strong>Povlak a tvar<\/strong> s provozn\u00edm prost\u0159ed\u00edm a odolnost\u00ed<\/li>\n<\/ul>\n<p>S <strong>NBAEM<\/strong>, neh\u00e1date \u2013 z\u00edsk\u00e1v\u00e1te materi\u00e1ly testovan\u00e9, hodnocen\u00e9 a p\u0159ipraven\u00e9 k p\u0159esn\u00e9mu pln\u011bn\u00ed va\u0161ich po\u017eadavk\u016f.<\/p>\n<h2>\u010casto kladen\u00e9 ot\u00e1zky FAQs<\/h2>\n<h3>Co ozna\u010den\u00ed N \u010d\u00edslem nazna\u010duje o s\u00edle<\/h3>\n<p>S\u00edla <strong>\u010d\u00edslo N<\/strong> \u0159\u00edk\u00e1 v\u00e1m t\u0159\u00eddu neodymov\u00e9ho magnetu a p\u0159\u00edmo souvis\u00ed s jeho maxim\u00e1ln\u00edm energetick\u00fdm produktem (<strong>BHmax<\/strong>). Vy\u0161\u0161\u00ed \u010d\u00edslo N znamen\u00e1, \u017ee magnet m\u016f\u017ee ulo\u017eit v\u00edce magnetick\u00e9 energie. Nap\u0159\u00edklad, <strong>N35<\/strong> je siln\u00fd, ale <strong>N52<\/strong> dod\u00e1v\u00e1 v\u00edce energie ve stejn\u00e9m rozm\u011bru. M\u011bjte na pam\u011bti, \u017ee \u010d\u00edslo neznamen\u00e1 fyzickou velikost \u2013 dva magnety r\u016fzn\u00fdch t\u0159\u00edd, ale stejn\u00e9 velikosti, mohou m\u00edt velmi odli\u0161n\u00e9 s\u00edly.<\/p>\n<h3>Vztah mezi ta\u017enou silou, velikost\u00ed magnetu a t\u0159\u00eddou<\/h3>\n<p><strong>Tahov\u00e1 s\u00edla<\/strong> z\u00e1vis\u00ed jak na t\u0159\u00edd\u011b, tak na fyzick\u00fdch rozm\u011brech magnetu. Velk\u00e9 magnety s vysok\u00fdmi t\u0159\u00eddami N produkuj\u00ed nejv\u011bt\u0161\u00ed tah. Nap\u0159\u00edklad:<\/p>\n<ul>\n<li>Mal\u00fd disk N52 m\u016f\u017ee m\u00edt v\u011bt\u0161\u00ed tahovou s\u00edlu ne\u017e v\u011bt\u0161\u00ed disk N35.<\/li>\n<li>Zdvojen\u00ed velikosti a zv\u00fd\u0161en\u00ed t\u0159\u00eddy m\u016f\u017ee v\u00fdrazn\u011b n\u00e1sobit tahovou s\u00edlu.<br \/>\nP\u0159i v\u00fdb\u011bru slad\u00edte tahovou s\u00edlu s va\u0161\u00ed aplikac\u00ed \u2014 p\u0159\u00edli\u0161 velk\u00e1 s\u00edla m\u016f\u017ee zt\u00ed\u017eit manipulaci nebo odstran\u011bn\u00ed.<\/li>\n<\/ul>\n<h3>Pou\u017eit\u00ed m\u011b\u0159en\u00ed gauss\u016f k porovn\u00e1n\u00ed magnet\u016f<\/h3>\n<p><strong>Gauss<\/strong> m\u011b\u0159\u00ed magnetickou indukci na povrchu. A <strong>gauss\u016fv m\u011b\u0159i\u010d<\/strong> d\u00e1v\u00e1 p\u0159\u00edm\u00e9 \u010dten\u00ed, kter\u00e9 m\u016f\u017eete pou\u017e\u00edt pro srovn\u00e1n\u00ed. Jen si v\u0161imn\u011bte:<\/p>\n<ul>\n<li>Vy\u0161\u0161\u00ed t\u0159\u00eddy obvykle ukazuj\u00ed vy\u0161\u0161\u00ed povrchov\u00fd gauss u stejn\u00e9 velikosti magnetu.<\/li>\n<li>Tvar, povrchov\u00e1 \u00faprava a vzd\u00e1lenost m\u011b\u0159en\u00ed ovliv\u0148uj\u00ed nam\u011b\u0159en\u00e9 hodnoty.<br \/>\nPokud porovn\u00e1v\u00e1te magnety pro projekt, m\u011b\u0159te je stejn\u00fdm zp\u016fsobem pro p\u0159esn\u00e9 v\u00fdsledky.<\/li>\n<\/ul>\n<h3>Vliv teploty a povlaku na v\u00fdkon magnetu<\/h3>\n<p>Teplo a prost\u0159ed\u00ed mohou ovlivnit v\u00fdkon magnetu:<\/p>\n<ul>\n<li>Mnoho vysok\u00fdch t\u0159\u00edd, jako N52, ztr\u00e1c\u00ed s\u00edlu rychleji p\u0159i vysok\u00fdch teplot\u00e1ch.<\/li>\n<li>Pro vy\u0161\u0161\u00ed odolnost v\u016f\u010di teplu hledejte speci\u00e1ln\u00ed t\u0159\u00eddy (nap\u0159\u00edklad N42SH nebo N35EH).<\/li>\n<li><strong>Potaz\u00edch<\/strong> jako nikl-m\u011b\u010f-nikl nebo epoxidov\u00e1 povrchov\u00e1 \u00faprava chr\u00e1n\u00ed p\u0159ed rezav\u011bn\u00edm a od\u0161t\u011bpov\u00e1n\u00edm, zejm\u00e9na v venkovn\u00edm nebo vlhk\u00e9m prost\u0159ed\u00ed.<br \/>\nVolba spr\u00e1vn\u00e9ho teplotn\u00edho odolnosti a povrchov\u00e9 \u00fapravy prodlu\u017euje \u017eivotnost magnetu a udr\u017euje stabiln\u00ed v\u00fdkon.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Zjist\u011bte o t\u0159\u00edd\u00e1ch magnet\u016f, ta\u017en\u00e9 s\u00edle, gaussov\u011b intenzit\u011b a N \u010d\u00edslech, jak vybrat spr\u00e1vn\u00fd magnet pro va\u0161i aplikaci<\/p>","protected":false},"author":1,"featured_media":2043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Neodymium_Magnet_N_Grades_Guide_x0GfgyQrA.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/2045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/comments?post=2045"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/2045\/revisions"}],"predecessor-version":[{"id":2050,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/posts\/2045\/revisions\/2050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/media\/2043"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/media?parent=2045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/categories?post=2045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/cs\/wp-json\/wp\/v2\/tags?post=2045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}