Tieto magnety s\u00fa zn\u00e1me tromi k\u013e\u00fa\u010dov\u00fdmi charakteristikami v\u00fdkonnosti:<\/p>\n
- \n
- Vysok\u00e1 magnetick\u00e1 sila<\/strong> \u2013 Vytv\u00e1raj\u00fa ve\u013emi siln\u00e9 magnetick\u00e9 pole aj v kompaktn\u00fdch ve\u013ekostiach.<\/li>\n
- Vysok\u00e1 kovalencia<\/strong> \u2013 Odol\u00e1vaj\u00fa demagnetiz\u00e1cii zo strany vonkaj\u0161\u00edch magnetick\u00fdch pol\u00ed.<\/li>\n
- Maxim\u00e1lne operat\u00edvne teplotn\u00e9 limity<\/strong> \u2013 V z\u00e1vislosti od triedy ich v\u00e4\u010d\u0161ina m\u00f4\u017ee efekt\u00edvne fungova\u0165 iba medzi 80\u00b0C (176\u00b0F) a 230\u00b0C (446\u00b0F)<\/strong> pred zn\u00ed\u017een\u00edm sily.<\/li>\n<\/ul>\n
V\u010faka svojej sile a kompaktnosti s\u00fa neod\u00fdmov\u00e9 magnety \u0161iroko pou\u017e\u00edvan\u00e9 v aplik\u00e1ci\u00e1ch, kde z\u00e1le\u017e\u00ed na v\u00fdkone aj odolnosti vo\u010di teplu, ako napr\u00edklad:<\/p>\n
- \n
- Elektrick\u00e9 motory a vetern\u00e9 turb\u00edny<\/li>\n
- Pevn\u00e9 disky a ukladanie d\u00e1t<\/li>\n
- Lek\u00e1rske zariadenia ako MRI pr\u00edstroje<\/li>\n
- Zvukov\u00e9 zariadenia a reproduktory<\/li>\n
- Priemyseln\u00e9 dr\u017eanie a zvedacie n\u00e1stroje<\/li>\n<\/ul>\n
Pre in\u017einierov, dizajn\u00e9rov a hobbyistov je pochopenie teplotnej tolerancie a \u00fa\u010dinkov tepla<\/strong> kritick\u00e9, preto\u017ee prehrievanie m\u00f4\u017ee vies\u0165 k trvalej strate magnetizmu a zn\u00ed\u017eeniu v\u00fdkonu.<\/p>\n
Veda za zahrievan\u00edm neod\u00fdmov\u00fdch magnetov<\/h2>\n
![\"Nd](\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Neodymium_Magnet_Curie_Temperature_izIURQCeQ.webp\")
<\/p>\nNeod\u00fdmov\u00e9 magnety z\u00edskavaj\u00fa svoju silu z usporiadania mal\u00fdch magnetick\u00fdch oblast\u00ed naz\u00fdvan\u00fdch magnetick\u00e9 dom\u00e9ny<\/strong>. Tieto dom\u00e9ny zost\u00e1vaj\u00fa pevne zafixovan\u00e9 za be\u017en\u00fdch podmienok, \u010do magnetu d\u00e1va jeho siln\u00fd \u0165ah. Ke\u010f sa aplikuje teplo, dodato\u010dn\u00e1 energia sp\u00f4sobuje pohyb elektr\u00f3nov v t\u00fdchto dom\u00e9nach, \u010do s\u0165a\u017euje ich zos\u00faladenie.<\/p>\n
Ka\u017ed\u00fd neod\u00fdmov\u00fd magnet m\u00e1 Teplota Curie<\/strong> \u2014 oby\u010dajne okolo 310\u2013400\u00b0C (590\u2013752\u00b0F)<\/strong> v z\u00e1vislosti od stup\u0148a. Ak magnet dosiahne tento bod, dom\u00e9ny stratia v\u0161etko zos\u00faladenie a magnet sa trvalo demagnetizuje. Je e\u0161te pred dosiahnut\u00edm tohto extr\u00e9mu mo\u017en\u00e9, \u017ee teplo sp\u00f4sob\u00ed aj pokles sily.<\/p>\n
Existuj\u00fa v\u0161eobecn\u00e9 z\u00f3ny tepeln\u00e9 stability z\u00f3n<\/strong> ktor\u00e9 treba zv\u00e1\u017ei\u0165:<\/p>\n
- \n
- Bezpe\u010dn\u00fd rozsah<\/strong> \u2013 V\u00e4\u010d\u0161ina be\u017ene pou\u017e\u00edvan\u00fdch tried funguje dobre pod 80 \u00b0C (176 \u00b0F) bez vidite\u013en\u00e9ho poklesu sily.<\/li>\n
- Vykazovacia z\u00f3na<\/strong> \u2013 Medzi 80 \u00b0C a maxim\u00e1lnou prev\u00e1dzkovou teplotou magnetu za\u010dn\u00fa sila \u0165ahu klesa\u0165 a nemus\u00ed sa \u00faplne obnovi\u0165.<\/li>\n
- Kritick\u00e1 z\u00f3na<\/strong> \u2013 Nad udanou maxim\u00e1lnou teplotou nast\u00e1va trval\u00e9 po\u0161kodenie a strata magnetizmu, aj ke\u010f sa magnet po ochladen\u00ed vr\u00e1ti do ni\u017e\u0161ej teploty.<\/li>\n<\/ul>\n
Poznanie t\u00fdchto hran\u00edc je k\u013e\u00fa\u010dov\u00e9 \u2014 najm\u00e4 v aplik\u00e1ci\u00e1ch ako motory, sn\u00edma\u010de alebo n\u00e1stroje, kde je be\u017en\u00e9 zhroma\u017e\u010fovanie tepla.<\/p>\n
\u00da\u010dinky zahrievania na neod\u00fdmov\u00e9 magnety<\/h2>\n
Zahrievanie neod\u00fdmov\u00fdch magnetov m\u00e1 kr\u00e1tkodob\u00e9 aj dlhodob\u00e9 \u00fa\u010dinky, z\u00e1visia od toho, ako ve\u013emi s\u00fa rozp\u00edsan\u00e9 a ako dlho trvaj\u00fa.<\/p>\n
Do\u010dasn\u00e9 \u00fa\u010dinky<\/strong> nast\u00e1vaj\u00fa, ke\u010f je magnet zohrievan\u00fd, ale zost\u00e1va pod svojou maxim\u00e1lnou prev\u00e1dzkovou teplotou. M\u00f4\u017eete si v\u0161imn\u00fa\u0165 pokles magnetickej pr\u00ed\u0165a\u017elivosti, no po ochladen\u00ed sa v\u00e4\u010d\u0161ina alebo v\u0161etka sila vr\u00e1ti.<\/p>\n
Permanentn\u00e9 \u00fa\u010dinky<\/strong> vyskytuj\u00fa sa, ak teplota presiahne kritick\u00fd limit magnetu (bl\u00edzko jeho teploty Curie). V tejto chv\u00edli je strata magnetizmu nevratn\u00e1 a magnet sa ned\u00e1 vr\u00e1ti\u0165 do p\u00f4vodnej sily.<\/p>\n
Strata magnetickej sily<\/strong> rastie s teplotou. Aj stredn\u00e9 zahrievanie m\u00f4\u017ee sp\u00f4sobova\u0165 merate\u013en\u00e9 straty:<\/p>\n
- \n
- Okolo 5\u201310% strata pri zahriat\u00ed v bl\u00edzkosti hornej bezpe\u010dnej hranice<\/li>\n
- Viac ako 20% strata po prekro\u010den\u00ed menovanej teploty<\/li>\n
- Nad bodom Curie takmer \u00fapln\u00e9 demagnetizovanie<\/li>\n<\/ul>\n
Fyzick\u00e9 a \u0161truktur\u00e1lne po\u0161kodenie<\/strong> je \u010fal\u0161ou staros\u0165ou. Vysok\u00e9 teplo m\u00f4\u017ee vies\u0165 k:<\/p>\n
- \n
- Mikrotrhlin\u00e1m na povrchu magnetu, \u010do ho rob\u00ed krehkej\u0161\u00edm<\/li>\n
- R\u00fdchlej\u0161ej kor\u00f3zii, najm\u00e4 ak s\u00fa po\u0161koden\u00e9 ochrann\u00e9 vrstvy<\/li>\n
- Oslabenie vn\u00fatorn\u00e9ho zrna magnetu<\/li>\n<\/ul>\n
Vplyv na k\u013e\u00fa\u010dov\u00e9 magnetick\u00e9 vlastnosti<\/strong>:<\/p>\n
- \n
- Koercivita<\/strong> (odolnos\u0165 vo\u010di demagnetiz\u00e1cii) zvy\u010dajne kles\u00e1 s teplom, \u010d\u00edm sa magnety \u013eah\u0161ie oslabuj\u00fa<\/li>\n
- remanencia<\/strong> (zvy\u0161n\u00e1 magnetick\u00e1 sila) kles\u00e1 pri vy\u0161\u0161\u00edch teplot\u00e1ch neust\u00e1le<\/li>\n<\/ul>\n
Maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota a tepeln\u00e9 limity<\/h2>\n
![\"Neod\u00fdmov\u00e9](\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Neodymium_Magnet_Thermal_Limits_bqzJHs6st.webp\")
<\/p>\nNeod\u00fdmov\u00e9 magnety v\u0161etky zvl\u00e1daj\u00fa teplo r\u00f4znymi sp\u00f4sobmi. Ka\u017ed\u00e1 trieda m\u00e1 svoje vlastn\u00e9 maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota<\/strong>, \u010do je bod, kde za\u010d\u00edna str\u00e1ca\u0165 magnetick\u00fa silu. Napr\u00edklad:<\/p>\n
\n\n
\n \nStupe\u0148<\/th>\n Prev\u00e1dzkov\u00e1 maxim\u00e1lna teplota (\u00b0F)<\/th>\n Maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota (\u00b0C)<\/th>\n<\/tr>\n<\/thead>\n \n N35<\/td>\n ~176\u00b0F<\/td>\n ~80\u00b0C<\/td>\n<\/tr>\n \n N42<\/td>\n ~176\u00b0F<\/td>\n ~80\u00b0C<\/td>\n<\/tr>\n \n N52<\/td>\n ~140\u00b0F<\/td>\n ~60\u00b0C<\/td>\n<\/tr>\n \n Vysok\u00e9 teplotn\u00e9 triedy (napr. N35EH)<\/td>\n 392\u00b0F<\/td>\n 200\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n V\u00fdrobcovia zvy\u010dajne uved\u00fa bezpe\u010dn\u00fd pracovn\u00fd rozsah<\/strong> ktor\u00fd je trochu pod absol\u00fatnym limitom, aby sa magnets neza\u0165a\u017eovali v priebehu \u010dasu. To je sp\u00f4soben\u00e9 t\u00fdm, \u017ee tepeln\u00e9 po\u0161kodenie m\u00f4\u017ee by\u0165 postupn\u00e9\u2014dr\u017eanie tesne pod maxim\u00e1lnym ratingom po dlh\u0161ie obdobia m\u00f4\u017ee st\u00e1le sp\u00f4sobova\u0165 stratu magnetizmu.<\/p>\n
K\u00fape\u013en\u00e1 \u00faprava<\/strong> po\u010das v\u00fdroby m\u00f4\u017ee zlep\u0161i\u0165 teplotn\u00fa v\u00fddr\u017e magnetu, najm\u00e4 pre priemyseln\u00e9 aplik\u00e1cie, kde s\u00fa be\u017en\u00e9 vy\u0161\u0161ie prev\u00e1dzkov\u00e9 teploty. Ochrann\u00e9 vrstvy<\/strong> ako nikl, epoxid alebo \u0161peci\u00e1lne tepelne odoln\u00e9 povlaky tie\u017e pom\u00e1haj\u00fa. Hoci vrstvy neprestan\u00fa demagnetiz\u00e1ciu, br\u00e1nia po\u0161kodeniu povrchu, kor\u00f3zii a mikrotrhlin\u00e1m, ktor\u00e9 teplo m\u00f4\u017ee ur\u00fdchli\u0165.<\/p>\n
Praktick\u00e9 dopady na priemyseln\u00e9 a spotrebite\u013esk\u00e9 pou\u017eitie<\/h2>\n
Zahrievanie m\u00f4\u017ee ma\u0165 v\u00fdrazn\u00fd vplyv na v\u00fdkon neod\u00fdmov\u00fdch magnetov v re\u00e1lnych aplik\u00e1ci\u00e1ch. V motoroch, gener\u00e1toroch a \u010fal\u0161ej elektronike m\u00f4\u017ee nadmern\u00e9 teplo sp\u00f4sobova\u0165, \u017ee magnety stratia \u010das\u0165 svojej sily, \u010do m\u00f4\u017ee zn\u00ed\u017ei\u0165 kr\u00fatiaci moment, zlep\u0161i\u0165 efektivitu alebo sp\u00f4sobi\u0165 \u00fapln\u00e9 zastavenie zariadenia. Aj kr\u00e1tky \u010das nad ich ud\u00e1van\u00fa maxim\u00e1lnu prev\u00e1dzkov\u00fa teplotu m\u00f4\u017ee spusti\u0165 \u010diasto\u010dn\u00fa alebo trval\u00fa demagnetiz\u00e1ciu.<\/p>\n
Pre priemyseln\u00e9 syst\u00e9my, ktor\u00e9 be\u017eia pri \u0165a\u017ek\u00fdch z\u00e1\u0165a\u017eiach alebo v hor\u00facom prostred\u00ed\u2014ako vetern\u00e9 turb\u00edny, elektromotory pre elektrick\u00e9 vozidl\u00e1 alebo CNC stroje\u2014ignorovanie odolnosti neod\u00fdmov\u00fdch magnetov vo\u010di teplu<\/strong> m\u00f4\u017ee vies\u0165 k n\u00e1kladn\u00fdm poruch\u00e1m. V spotrebite\u013esk\u00fdch produktoch, ako s\u00fa reproduktory alebo magnetick\u00e9 dr\u017eiaky, teplo zo susedn\u00fdch komponentov m\u00f4\u017ee postupne zhor\u0161ova\u0165 v\u00fdkonnos\u0165 v \u010dase.<\/p>\n
Rizik\u00e1 pri ignorovan\u00ed termick\u00fdch efektov:<\/strong><\/p>\n
- \n
- Zn\u00ed\u017een\u00e1 magnetick\u00e1 sila a strata v\u00fdkonu<\/li>\n
- Poruchy zariaden\u00ed s\u00favisiace s prehrievan\u00edm<\/li>\n
- Bezpe\u010dnostn\u00e9 rizik\u00e1 sp\u00f4soben\u00e9 mechanick\u00fdmi probl\u00e9mami alebo pre\u0165a\u017een\u00edm elektrick\u00fdm<\/li>\n
- Skr\u00e1ten\u00e1 \u017eivotnos\u0165 zariadenia<\/li>\n<\/ul>\n
Najlep\u0161ie postupy pri v\u00fdbere magnetov pre tepl\u00e9 prostredie:<\/strong><\/p>\n
- \n
- Zladenie stup\u0148a magnetu s o\u010dak\u00e1vanou prev\u00e1dzkovou teplotou<\/li>\n
- Pou\u017eite tepelne odoln\u00e9 povlaky alebo encapsul\u00e1ciu na spomalenie tepeln\u00e9mu rozkladu a kor\u00f3zie<\/li>\n
- Umo\u017enite tepeln\u00fa bezpe\u010dnostn\u00fa rezervu nad o\u010dak\u00e1van\u00e9 maxim\u00e1lne teploty<\/li>\n
- Umiestnite magnety \u010falej od zn\u00e1mych zdrojov tepla u\u017e v dizajne<\/li>\n
- Zv\u00e1\u017ete vysokoteplotn\u00e9 triedy alebo alternat\u00edvne typy magnetov (ako SmCo) pre extr\u00e9mne podmienky<\/li>\n<\/ul>\n
Udr\u017eiavanie magnetov v ich bezpe\u010dnom teplotnom rozmedz\u00ed zabezpe\u010duje stabiln\u00fd v\u00fdkon a zabra\u0148uje skor\u00e9mu zlyhaniu zariadenia, \u010di u\u017e prev\u00e1dzkujete priemyseln\u00fa z\u00e1vod alebo st\u00e1vate high-performance elektroniku doma.<\/p>\n
Zmiernenie \u00fa\u010dinkov tepla na neod\u00fdmov\u00e9 magnety<\/h2>\n
![\"Tep\u013eo](\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Heat_Resistant_Neodymium_Magnets_AIzVFd9u1.webp\")
<\/p>\nAk va\u0161a aplik\u00e1cia funguje teplo, existuj\u00fa sp\u00f4soby, ako chr\u00e1ni\u0165 neod\u00fdmov\u00e9 magnety pred po\u0161koden\u00edm teplom. Mal\u00e9 zmeny v n\u00e1vrhu, materi\u00e1loch a skladovan\u00ed m\u00f4\u017eu urobi\u0165 ve\u013ek\u00fd rozdiel.<\/p>\n
Zlep\u0161enie odolnosti vo\u010di teplu<\/h3>\n
- \n
- Vyberte odoln\u00e9 triedy vo\u010di teplu<\/strong> \u2013 Niektor\u00e9 NdFeB magnety s\u00fa navrhnut\u00e9 pre vy\u0161\u0161ie maxim\u00e1lne prev\u00e1dzkov\u00e9 teploty (a\u017e 230 \u00b0F\u2013300 \u00b0F) v porovnan\u00ed so \u0161tandardn\u00fdmi triedami.<\/li>\n
- Pou\u017eite \u0161peci\u00e1lne zliatiny<\/strong> \u2013 Prid\u00e1vanie prvkov ako dysprosium alebo terbium m\u00f4\u017ee zv\u00fd\u0161i\u0165 koercivitu a tepeln\u00fa odolnos\u0165.<\/li>\n
- Aplikujte ochrann\u00e9 povlaky<\/strong> \u2013 Epoxid, nikl-kov-nikly alebo in\u00e9 vysokoteplotn\u00e9 povlaky m\u00f4\u017eu zn\u00ed\u017ei\u0165 oxid\u00e1ciu a poruchy povrchu pri zv\u00fd\u0161en\u00fdch teplot\u00e1ch.<\/li>\n
- Optimaliz\u00e1cia n\u00e1vrhu zostavy<\/strong> \u2013 Umiestnite magnety \u010falej od priamych zdrojov tepla alebo pridajte tepeln\u00e9 bari\u00e9ry v zostave.<\/li>\n<\/ul>\n
Tipy na skladovanie a manipul\u00e1ciu<\/h3>\n
- \n
- Udr\u017eujte magnety v mieste s riadenou teplotou<\/strong>, ide\u00e1lne pod 140 \u00b0F.<\/li>\n
- Vyhnite sa skladovaniu v bl\u00edzkosti motorov, ohrieva\u010dov alebo in\u00e9ho zariadenia hovoriaceho o teple.<\/li>\n
- Pou\u017eite vystu\u017een\u00e9, nemagnetick\u00e9 kontajnery na zabr\u00e1nenie odlupovaniu sp\u00f4soben\u00e9mu teplotnou roz\u0165a\u017enos\u0165ou.<\/li>\n<\/ul>\n
Kedy zv\u00e1\u017ei\u0165 alternat\u00edvy<\/h3>\n
Ak pracovn\u00e9 prostredie pravidelne prekra\u010duje teplotn\u00fd limit magnetu, m\u00f4\u017ee by\u0165 lep\u0161ie:<\/p>\n
- \n
- Prejs\u0165 na Samarium kobalt magnets<\/strong> \u2013 Zvl\u00e1daj\u00fa vy\u0161\u0161ie teploty s men\u0161\u00edm rizikom demagnetiz\u00e1cie.<\/li>\n
- Pou\u017e\u00edvajte ferritov\u00e9 magnety pre lacnej\u0161ie, stredne siln\u00e9 aplik\u00e1cie v vysokom teple.<\/li>\n
- Kombinujte magnety s chladiace nosi\u010de alebo mont\u00e1\u017ee<\/strong> rozdeli\u0165 tepeln\u00fa z\u00e1\u0165a\u017e<\/li>\n<\/ul>\n
V\u00fdber spr\u00e1vnej triedy a ochrann\u00fdch strat\u00e9gi\u00ed vopred zabezpe\u010d\u00ed stabiln\u00fd magnetick\u00fd v\u00fdkon a dlh\u0161iu \u017eivotnos\u0165 zariadenia.<\/p>\n
Odbornos\u0165 NBAEM v dod\u00e1vkach vysoko v\u00fdkonn\u00fdch neod\u00fdmov\u00fdch magnetov<\/h2>\n
V spolo\u010dnosti NBAEM dod\u00e1vame vysoko v\u00fdkonn\u00e9 neod\u00edmov\u00e9 magnety<\/strong> navrhnut\u00e9 tak, aby poskytovali konzistentn\u00fa silu a spo\u013eahlivos\u0165 aj pri pr\u00e1ci v bl\u00edzkosti ich maxim\u00e1lnych teplotn\u00fdch limitov. Vieme, \u017ee na trhu v Slovenskej republike s\u00fa magnety \u010dasto pou\u017e\u00edvan\u00e9 v n\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch \u2014 priemyseln\u00e9 motory, gener\u00e1tory, komponenty pre elektromobily a \u0161peci\u00e1lna elektronika \u2014 kde odolnos\u0165 vo\u010di teplu<\/strong> m\u00f4\u017ee rozhodova\u0165 o v\u00fdkone.<\/p>\n
Na\u0161a produktov\u00e1 ponuka pokr\u00fdva \u0161irok\u00fa \u0161k\u00e1lu tried a teplotn\u00fdch toleranci\u00ed<\/strong>, od \u0161tandardn\u00fdch typov N35 a\u017e po vysokoteplotn\u00e9 mo\u017enosti schopn\u00e9 vydr\u017ea\u0165 a\u017e do 200 \u00b0C<\/strong> bez v\u00fdznamn\u00e9ho poklesu magnetizmu. Ak potrebujete vlastn\u00fa ve\u013ekos\u0165, povlak alebo zmes\u00e1vu zliatin pre lep\u0161iu tepeln\u00fa stabilitu, vieme vyrobi\u0165 presne pod\u013ea va\u0161ich \u0161pecifik\u00e1ci\u00ed.<\/p>\n
V\u0161etky na\u0161e magnety prech\u00e1dzaj\u00fa pr\u00edsnym testovan\u00edm kvality<\/strong>, vr\u00e1tane sk\u00fa\u0161ok tepelnej odolnosti, aby sp\u013a\u0148ali teplotn\u00e9 ratingy v\u00fdrobcu<\/strong> a udr\u017eiava\u0165 magnetick\u00fa silu v priebehu \u010dasu. Tie\u017e pon\u00fakame usmernenie o v\u00fdbere spr\u00e1vnej triedy<\/strong> pre va\u0161e prostredie, aby sa predi\u0161lo demagnetiz\u00e1cii sp\u00f4sobenej teplom<\/strong> a zn\u00ed\u017eeniu riz\u00edk \u00fadr\u017eby.<\/p>\n
Ak h\u013ead\u00e1te magnety, ktor\u00e9 dok\u00e1\u017eu zvl\u00e1dnu\u0165 aj riadi\u0165 v\u00fdkon a teplo<\/strong>, na\u0161i in\u017einieri v\u00e1m pom\u00f4\u017eu n\u00e1js\u0165 optim\u00e1lne rie\u0161enie. Dozviete sa viac o v\u00fdkonnostn\u00fdch vlastnostiach materi\u00e1lov v na\u0161om sprievodca vz\u00e1cnymi zemn\u00fdmi magnetmi<\/a> alebo kontaktujte n\u00e1s priamo pre bezplatn\u00fa konzult\u00e1ciu<\/strong> oh\u013eadom va\u0161ich tepeln\u00fdch po\u017eiadaviek.<\/p>","protected":false},"excerpt":{"rendered":"
Learn the effect of heating neodymium magnets their temperature limits demagnetization risks and tips for heat resistant performance<\/p>","protected":false},"author":1,"featured_media":2002,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Heat_Resistant_Neodymium_Magnets_AIzVFd9u1.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/2004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/comments?post=2004"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/2004\/revisions"}],"predecessor-version":[{"id":2008,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/2004\/revisions\/2008"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media\/2002"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media?parent=2004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/categories?post=2004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/tags?post=2004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Pou\u017eite \u0161peci\u00e1lne zliatiny<\/strong> \u2013 Prid\u00e1vanie prvkov ako dysprosium alebo terbium m\u00f4\u017ee zv\u00fd\u0161i\u0165 koercivitu a tepeln\u00fa odolnos\u0165.<\/li>\n
- Vyberte odoln\u00e9 triedy vo\u010di teplu<\/strong> \u2013 Niektor\u00e9 NdFeB magnety s\u00fa navrhnut\u00e9 pre vy\u0161\u0161ie maxim\u00e1lne prev\u00e1dzkov\u00e9 teploty (a\u017e 230 \u00b0F\u2013300 \u00b0F) v porovnan\u00ed so \u0161tandardn\u00fdmi triedami.<\/li>\n
- remanencia<\/strong> (zvy\u0161n\u00e1 magnetick\u00e1 sila) kles\u00e1 pri vy\u0161\u0161\u00edch teplot\u00e1ch neust\u00e1le<\/li>\n<\/ul>\n
- Koercivita<\/strong> (odolnos\u0165 vo\u010di demagnetiz\u00e1cii) zvy\u010dajne kles\u00e1 s teplom, \u010d\u00edm sa magnety \u013eah\u0161ie oslabuj\u00fa<\/li>\n
- Vykazovacia z\u00f3na<\/strong> \u2013 Medzi 80 \u00b0C a maxim\u00e1lnou prev\u00e1dzkovou teplotou magnetu za\u010dn\u00fa sila \u0165ahu klesa\u0165 a nemus\u00ed sa \u00faplne obnovi\u0165.<\/li>\n
- Bezpe\u010dn\u00fd rozsah<\/strong> \u2013 V\u00e4\u010d\u0161ina be\u017ene pou\u017e\u00edvan\u00fdch tried funguje dobre pod 80 \u00b0C (176 \u00b0F) bez vidite\u013en\u00e9ho poklesu sily.<\/li>\n
- Vysok\u00e1 kovalencia<\/strong> \u2013 Odol\u00e1vaj\u00fa demagnetiz\u00e1cii zo strany vonkaj\u0161\u00edch magnetick\u00fdch pol\u00ed.<\/li>\n