{"id":3973,"date":"2026-08-25T08:08:06","date_gmt":"2026-08-25T08:08:06","guid":{"rendered":"https:\/\/nbaem.com\/?p=3973"},"modified":"2026-08-23T04:09:45","modified_gmt":"2026-08-23T04:09:45","slug":"how-to-demagnetize-a-magnet","status":"publish","type":"post","link":"https:\/\/nbaem.com\/gd\/how-to-demagnetize-a-magnet\/","title":{"rendered":"Ciamar a leaghdaich magnet leantainneach? M\u00ecneachadh s\u00ecmplidh ceum air cheum"},"content":{"rendered":"<h2>Fiosaigs deuchainnean Mh\u00f2dan Fe\u00f2ir: Mar a th\u00e8id magneta a dh\u00ec-bhualadh<\/h2>\n<p>Nuair a tha sinn a\u2019 rannsachadh m\u00e8inean \u00e0rd-choileanadh ann an tagraidhean innleadaireachd, tuigse <strong>mu cho-dh\u00f9naich magnet a dh\u00ec-bhualadh<\/strong> toirt na h-\u00ecrean fo-s\u00f2-th\u00e8arainte. Chan e tionndadh structuraichte a tha ann an magnetization don stuth, ach sti\u00f9ireadh luathadh mionaideach de mh\u00f2ran dipole atomach.<\/p>\n<h3>Mecanachd Atomach: Magnetization an coimeas ri Demagnetization<\/h3>\n<p>Air an sgaoileadh atomach, tha neart magneataich a\u2019 tighinn bhon spin electron nach eil p\u00e0irteach <strong>spin electron<\/strong>. Anns na stuthan ferromagnetic agus ferrimagnetic, tha na spins sin a\u2019 dithis-\u00f9ine a\u2019 leudachadh gu co-sh\u00ecntean ann an r\u00e8ilidhean beag a known mar <strong>R\u00f9intean Weiss<\/strong>.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Staid Magnachadh:<\/strong> C\u00f2tan magnetigeach air falbh le d\u00econachadh a-muigh a\u2019 cumail a\u2019 r\u00e9iteach r\u00e8iteachadh Weiss air a ghairm agus a\u2019 cumail sreath a-steach ann an aon sti\u00f9ir. Seo <strong>ceangachadh roinnean magnetach<\/strong> a\u2019 meudachadh an abhainn mh\u00f2ir mac-adhbhraichte.<\/li>\n<li><strong>Staid Demagnetized:<\/strong> Tha l\u00f9badh-demagnachadh a\u2019 cur dragh air an t-sreath seo, a\u2019 sgaoileadh sti\u00f9irean nan raointean gu sti\u00f9iridhean gu tur randamach. Tha na vec-tha de mheatair-me\u00f2rachaidh a\u2019 seachnadh a ch\u00e8ile, a\u2019 l\u00f9ghdachadh neart na raon a-muigh gu neoni.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>An L\u00f9b Hysteraiseach: Coercivity agus Remanence<\/h3>\n<p>Bidh sinn a\u2019 \u0442\u043e\u0433hnaidhean freagairt magnetach ri l\u00f9ths taobh a-muigh a\u2019 cleachdadh <strong>l\u00f9b hysteraiseach<\/strong>. Tha na comharran grafaigeach seo a\u2019 sealltainn na \u00ecrean l\u00f9tha a tha dyathan gus an domhan buntainneach a thionndadh no a chur an \u00e0ite gu fuasgailte.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Paramadair<\/th>\n<th style=\"text-align: left;\">Comharra<\/th>\n<th style=\"text-align: left;\">Cudromachd D\u00e8anamh-Gn\u00ecomhach<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>F\u00e0illigeadh<\/strong><\/td>\n<td style=\"text-align: left;\"><strong>Br<\/strong><\/td>\n<td style=\"text-align: left;\">An leud-fhr\u00e8in micaichte a tha na magnet a\u2019 fuireach \u00e0s d\u00e8idh a\u2019 raon magnetachaidh a bhith air a thoirt seachad.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Coercivity Gh\u00e0ineamhach<\/strong><\/td>\n<td style=\"text-align: left;\"><strong>Hc<\/strong><\/td>\n<td style=\"text-align: left;\">An tomhas de sheasamh stuth ri demagnetization bho raointean a-muigh, cargaichean teirmeach, no cuideam import.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A\u2019 measadh a\u2019 cho-mheadhan eadar <strong>feumachadh (Br)<\/strong> agus <strong>coercivity inntrigidh (Hc)<\/strong> a\u2019 gabhail cothrom air an \u00ecre s\u00f2nraichte de l\u00f9th a dh\u00ecth air glassadh domhan agus gu soirbheachail a nuair a tha raon magnetachd air a thoirt gu buil.<\/p>\n<h2>3 D\u00f2ighean Bunaiteach: Mar a chuireas sinn magnet a-mach<\/h2>\n<p>Nuair a tha sinn ag togail agus ag cumail suas co-roinnean magnetach, a\u2019 tuigsinn <strong>mu cho-dh\u00f9naich magnet a dh\u00ec-bhualadh<\/strong> gu s\u00e1bhailte agus gu intentional d\u00ecreach cho cudromach ri magnetachadh. Ge bith a tha thu a\u2019 seirbheachadh uidheamachd gn\u00ecomhachais no ag ath-chuairteachadh p\u00e0irtean motair, tha sinn an urra ri tr\u00ec modhan bunaiteach fhisigeach gus neodachadh l\u00f9th mheataigeach a shanasan.<\/p>\n<h3>Modh 1: Demagnetization Teirmeach ( L\u00e0imhseachadh Teothach )<\/h3>\n<p>A\u2019 tethadh magnet maireannach thar an <strong>cu\u00f2rt te\u00f2thachd Curie<\/strong> a\u2019 tarraing air adhart r\u00e8iteachaidhean tearcachadh teirmeach ionnsaigheach, a\u2019 meachail dipole atomach agus a\u2019 fuasgladh suas magnetachadh glan.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Teannachadh-Reabhailteachd an \u00e0iteachas:<\/strong> Tha teothachd os cionn an puinge Curie ach fo na cuingeachaidhean obrachaidh as \u00e0irde ga dh\u00e8anamh cron foirfe ann an comas. Tha trans-luachadh na p\u00e0irte Curie ga leantainn gu le\u00f2r, a\u2019 cur stad gu tur air magnetachadh.<\/li>\n<li><strong>Teicne\u00f2las Teirmeach le Cuingeachadh le Amalaichte:<\/strong><\/li>\n<li><strong>NdFeB neo-gn\u00e0thaichte (NdFeB):<\/strong> Curie temp 310\u00b0C\u2013350\u00b0C (Te\u00f2thachd obrachaidh as \u00e0irde: 80\u00b0C\u2013220\u00b0C)<\/li>\n<li><strong>Samarium Cobalt (SmCo):<\/strong> Curie temp 700\u00b0C\u2013800\u00b0C (Te\u00f2thachd obrachaidh as \u00e0irde: 250\u00b0C\u2013350\u00b0C)<\/li>\n<li><strong>Ferrite (Seramic):<\/strong> Curie temp 450\u00b0C (Te\u00f2thachd obrachaidhe as \u00e0irde: 250\u00b0C)<\/li>\n<li><strong>Alnico:<\/strong> Curie temp 860\u00b0C (Te\u00f2thachd obrachaidhe as \u00e0irde: 500\u00b0C\u2013550\u00b0C)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Modh 2: Degaussing Le D\u00e8anadair Diycheangachadh Dealain<\/h3>\n<p><strong>Dhethadh-sg\u00e0than dc\u00e0baichte<\/strong> cleachdaicheas eailing-mhaireannach AC a tha a\u2019 dol thairis air fhreumhan AC a tha a\u2019 tionndadh polarity mu thr\u00e0th, a\u2019 sgiathachadh an loidhne briseadh dhachaidh gu neoni gun teagamh corporra.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Polarity Scrambling fo smachd:<\/strong> Sreathan degaussing gn\u00ecomhachais no oighreachdarraidh speiileil \u00e0rd-achadh a tha a\u2019 sgaoileadh suidheachadh nan raon gu fuadain, a\u2019 f\u00e0gail fuasgladh f\u00ecor leth-bhuidhneachaidh neo-\u00e0idheim.<\/li>\n<li><strong>Tagraidhean Gn\u00ecomhachais:<\/strong> Bunaidh sinn air susbaidheachadh degaussing s\u00f2nraichte nuair a tha sinn a\u2019 leantainn ann an co-cheimseachadh tiorm no siostaman dreachachaidh, leithid \u00e0rd-torque <a href=\"https:\/\/nbaem.com\/gd\/what-is-mining-magnetic-coupling-and-how-it-works\/\">pacadh m\u00e8innearach magnetach<\/a>, gun a bhith a\u2019 cur cunnart do mhalamachadh teas gu p\u00e0irtean mun cuairt.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Modh 3: Teannachadh Demagnetization le Shock Meacanaigeach<\/h3>\n<p>Tha teannachadh corp-choitcheann \u00e0rd-achadh a\u2019 cur cuideam ann an r\u00e8iteachadh raoin tro bhrathadh na l\u00e0ithean. <strong>ach<\/strong> demagnetization le shock meacanaigeach<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>chan eil gu mimhaidh riatanach air iarrtasan mionaideach.<\/strong> Deformachadh Lochlannach Structarach:<\/li>\n<li><strong>Buaidhean corp-choitcheann trom, d\u00econadh ann an glasadh, no bh\u00ecorasan cruaidh gu m\u00f2r a\u2019 cur dragh air raointean Weiss, a\u2019 cronachadh toradh magnetach thar \u00f9ine.<\/strong> Tha stuthan briste mar neodimiad sintered agus ferrite nas foillteach gu m\u00f2r ri micro-greimeadh agus call structarail gu cruaidh ro-l\u00e0imh sgaoilteachd iomlan a riaghladh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>An aghaidh d\u00ec-dh\u00ecomhaireachd stuth-st\u00e8idheachd do dh\u00ec-dh\u00ecomhaireachd<\/h2>\n<h3>Coercivity Intrinsic (Hc)<\/h3>\n<p>Tha seasmachd chomataidh (Hc) a\u2019 tomhas comas dhoimhneil stuth a bhith a\u2019 gabhail ri m\u00ec-\u00f9ghdrachadh bho fharsaingeachd nan raointean an aghaidh. Tha \u00ecrean d\u00ecomhaireachd \u00e0rd-aotrom a\u2019 cur l\u00e8irsinn ann an gabhail ri deagh dh\u00econ-s\u00f2nraich a tha a\u2019 fuireach fuireachachadh-polaichte ann an urras-dh\u00ecomhaireachd le f\u00f2cas gus an teannachadh f\u00e8in-tachdadh nuair a tha e farsaingeachd gu pr\u00ecomh fuirean magnetach. Nuair a bhios sinn a\u2019 innleachadh cuairtean magnachadh \u00e0rd- te\u00f2thachd no cuideam \u00e0rd, tha taghadh de th\u00f9san freagarrach de bh\u00f2idheachd SmCo magnets a\u2019 d\u00e8anamh. <a href=\"https:\/\/nbaem.com\/gd\/what-are-the-grades-of-smco-magnets\/\">no ann as br\u00ecgh SmCo magnets<\/a> no a\u2019 cheann-uidhe neodymium a tha a\u2019 d\u00e8anamh cinnteach s\u00f9bailteachd magnetach fad-\u00f9ine.<\/p>\n<h3>Co-ionnadh Frith-chuinge (Pc)<\/h3>\n<p>Tha cruth magnet a\u2019 cur buaidhean f\u00e8in-dh\u00econachaidh gu d\u00ecreach le Taic Co-ionnachaidh (Pc), a tha a\u2019 m\u00ecneachadh an loidhne-luchdachadh magnachaidh:<br \/>\n<strong>Pc \u00e0rd (Cruthan fada\/tiugh):<\/strong> Tha \u00ecre fada-thaobh de dh\u00e0imh meadhanach a\u2019 cruthachadh d\u00e8anamh-fheumasaid a-staigh, a\u2019 toirt d\u00econ nas fhe\u00e0rr an aghaidh fhulangachadh f\u00e8in-dh\u00ecomadh.<br \/>\n<strong>Pc \u00ecosal (Cruthan tana\/ci\u00f9in):<\/strong> Tha na cruthan f\u00e0inne beag no filaidhean tana ag ithe agus ag \u00e0rdachadh air na raointean f\u00e8in-dh\u00ecomhaidh adhartach, a\u2019 bacadh nan \u00ecrean aca ann an l\u00e0n-shuidheachadh an aghaidh fuinneadh magnach reverse.<\/p>\n<h3>Cuingealachdan obrachaidh na \u00c0rainneachd<\/h3>\n<p>Nuair a tha sinn a\u2019 brosnachadh mar a leantainn gu m\u00ec-dh\u00ecomhachadh magnet no d\u00econadh co-ph\u00e0irtean customized an aghaidh f\u00e0 dh\u00f2nais fuinn, tha factaran obrachaidh \u00e0 external a\u2019 cluich p\u00e0irt chudromach:<br \/>\n<strong>Cuingealachdan Te\u00f2thachd Obrachaidh:<\/strong> Tha \u00e0rdachadh te\u00f2thachd \u00e0bhaisteach a\u2019 lughdachadh seasmachd chomataidh (Hc), a\u2019 bogachadh d\u00econ na magnet an aghaidh raointean reverse.<br \/>\n<strong>\u00ccomhaigh Far-cho-obrachadh:<\/strong> Tha eadar-aghaidh electromagnetach gun d\u00econ no tonnachadh gearair na cuiridhean sti\u00f9iridh a-steach gu fuaradh foan agus <a href=\"https:\/\/nbaem.com\/gd\/cause-demagnetization-in-permanent-magnet-motors\/\">a\u2019 leumadh de-magnetachadh ann am muir-mh\u00f2taichean magnets maireannach<\/a>.<br \/>\n<strong>L\u00e0raich-obrachaidh Demagnetizing:<\/strong> A\u2019 obrachadh le magnet aig a h-\u00e0irde Pc \u00ecosal fhad \u2018s a tha na te\u00f2thachd obrachaidh as \u00e0irde a\u2019 togail an \u00e0ite-obrach gu h-\u00ecosal as d\u00e8idh a\u2019 ch\u00f9ram-uillean, a\u2019 d\u00e8anamh mearachd magnetach maireannach.<\/p>\n<h2>A\u2019 casg Demagnetization gun a bhith ann ann an co-\u00f2rdanaidhean fh\u00e8in<\/h2>\n<p>Nuair a tha thu a\u2019 dealbhadh co-aontasan magnets maireannach airson m\u00e8astaichean gluasach d\u00econ-iomallach agus siostaman u\u00e8irichte, tha casg air m\u00ec-reusanachadh astar sam bith ann an c\u00f9isean obrachaidh fharsaing na ph\u00e0irt cudromach. Ag ionnsachadh <strong>mu cho-dh\u00f9naich magnet a dh\u00ec-bhualadh<\/strong> a\u2019 leantainn bheagadh mar a ghabhadh sinn d\u00econ a dh\u00e8anamh air a-one: feumaidh sinn dearbhadh tro dh\u00f2ighean \u00e0rd te\u00f2thachd obrachaidh, raointean electromagnetach a\u2019 buntainn, agus l\u00e0mhan-cioni-leanmhainn chruaidh.<\/p>\n<h3>Taghadh \u00ccre Meatair-a-\u00ecre \u00e0rd<\/h3>\n<p>Tha magnets \u00e0bhaisteach a\u2019 call sruthan gu luath nuair a tha iad fo theas no gu na raointean eadar-dhealachaidhean \u00e0rd. Bidh sinn ag ainmeachadh \u00ecrean \u00e0rd- te\u00f2thachd, \u00ecrean coercivity \u00e0rd gu s\u00f2nraichte air a\u2019 chuingeachadh \u00e0rainneachd:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>\u00c0rd-Te\u00f2thachd Neodam-deam (NdFeB)<\/strong>: Dh\u2019fhaodadh \u00ecrean leithid <strong>N35SH<\/strong> (air a valu gu 150\u00b0C) agus <strong>N42UH<\/strong> (mhachail ri 180\u00b0C) gabhail ri coercivity taobh a-staigh \u00e0rdachaidh (Hc) gus resistance a dh\u00e8anamh do bh\u00f9th nan raointean magnachaidh an aghaidh cleachdadh motar troma.<\/li>\n<li><strong>Samarium Cobalt (Sm2Co17)<\/strong>Airson \u00e0rainneachdan m\u00ecorbhaileach a tha a\u2019 dol thairis air 200\u00b0C suas gu 350\u00b0C, a\u2019 toirt stability dealanach s\u00f2nraichte agus an aghaidh demagnetachadh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Modailadh FEA agus S\u00e0bhailteachd F\u00edsica<\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Anailis eileamaid-iomlanail (FEA)<\/strong>Gheibh sinn modailachadh magnetach FEA adhartach gus gi\u00f9lan reinterpret ann an grunn tubaidhean dealain \u00e0rd a mhodalachadh, a\u2019 comharrachadh a\u2019 ghaol mu dheidhinn demagnetization ro na deuchainnean nimhe.<\/li>\n<li><strong>Ciamadachaidh Meacaniamail<\/strong>Sgaoilidhean structarach agus bhuaidhean leantainneach margaidh nan domhana atomach faodaidh riochdachadh air uidheamaidhean a bhualaidheadh. Tha a bhith a\u2019 c\u00f2mhdach na h-eileamaidean ann an co-ph\u00e0irtean st\u00e0ilinn gun staoin no ann an resin-potaidh \u00e0rd-neart a\u2019 d\u00econ na h-iomlanan, leithid obair-uaslaichte trom. <a href=\"https:\/\/nbaem.com\/tl\/what-is-mining-magnetic-coupling-and-how-it-works\/\">pacadh m\u00e8innearach magnetach<\/a> draibhearan, ann an aghaidh bhuannachdan-obrach s\u00f2nraichte cruaidh.<\/li>\n<li><strong>Co-chaochladair Co-fhreagarachd (Pc) Dhealbhadh<\/strong>A\u2019 neartachadh ghrafaichean magnet\u2014gu s\u00f2nraichte le bhith a\u2019 cumail suas ratio-fiodha nas fhe\u00e0rr eadar farsaingeachd agus tiugh\u2014a\u2019 neartachadh gu m\u00f2r an magnet an aghaidh f\u00e8in-dhearmadachadh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Ceistean Cumanta mu Dh\u00ecshlaodadh Magnets<\/h2>\n<h3>A bheil magnet a tha marbh-meadairean \u0441\u0430 demagnetized urrainn a bhith remagnetized gu an oilthreach t\u00f9sail aige?<\/h3>\n<p>Tha, ann am m\u00f2ran-shuidheachadh gn\u00ecomhachais, faodar magnet a tha air a dhealangachadh sruth-adhair a chur air ais gu l\u00e8ir le bhith ga chur ann an raon-magnetachd taobh a-muigh a tha nas ne\u00f2nach na an fhuireasachd cruaidh aige. Anns a\u2019 phr\u00f2iseas againn, n\u00ec sinn cleachdadh magnetizers discharge capacitor-\u00ecosal-fuinnteach gus f\u00f2cas a thoirt air an ... <strong>ceangachadh roinnean magnetach<\/strong> air ais gu l\u00e8ir saturated.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Call mu dh\u00ecleasachd:<\/strong> Faodar callachadh no callachadh teth mionaideach gu 100% a thoirt air ais le ath-mhaoineadh.<\/li>\n<li><strong>Callachadh gun ghluasad:<\/strong> bidh cron structaraill trom, ocsaidheachadh shligean grid, no atharraichean fuadain bho mheud fuarachd a' lughdachadh comas m\u00f2r-mhaireannachd na stuth gu maireannach.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>d\u00e8 an d\u00f2igh DIY as fhasa gus magnet a dhe-mheataigeadh aig an taigh?<\/h3>\n<p>Tha tuigse <strong>mu cho-dh\u00f9naich magnet a dh\u00ec-bhualadh<\/strong> taobh a-muigh co-theacsa labraithe, tha e na thartas gu teth no gu raon magnetach ath-reasach:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>F\u00ecor thlachdadh teothachd:<\/strong> Tha gearradh a tha a\u2019 cur nan magnet thairis air a\u2019 te\u00f2thachd obrachaidh as \u00e0irde le\u00e0rdachaidh l\u00f9imhseachail a\u2019 cleachdadh inneal teotha no lasair gu luath \u00f2rdughan botherachadh.<\/li>\n<li><strong>Fughail raon AC:<\/strong> A\u00edse ke\u00f2inean - mar eisimpleir inneal le m\u00e8antachadh no <a href=\"https:\/\/nbaem.com\/gd\/what-is-the-use-of-magnetic-bar\/\">Bar magnetach<\/a>\u2014 tro sgr\u00ecobhaiche bulk malairt no faisg air teathaAC obrachail, an uair sin a\u2019 tarruing gu socair bhon fh\u00e0ilteadh, tha e a\u2019 d\u00edch\u00f2mraich polarity mar ann an crann.<\/li>\n<li><strong>buaidh mh\u00e8innteach-obann:<\/strong> Is urrainn magnet le coercivity \u00ecosal a bhualadh le claidheamh l\u00f9badh a l\u00f9ghdachadh na neart, ach bidh magnets sgriobtaichte brittle gu math a\u2019 sgreadadh mus demagnetize gu l\u00e8ir.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>A bheil t\u00e0mhachadh magnetach nas fhaide na a l\u00econadh Curie ga mhilleadh gu maireannach?<\/h3>\n<p>Chan e, tha cosgais a tha os cionn <strong>cu\u00f2rt te\u00f2thachd Curie<\/strong> a\u2019 sguabadh a-mach an culaidh magnetach, ach chan eil e ga mhilleadh gu maireannach an stuth bunasach fad na h-\u00f9ine fad na h-\u00ecreachadh agus nach eilear a\u2019 seachnadh ocsaidachadh agus cromadh structaraidh. Nuair a th\u00e8id alloy fuarachadh gu l\u00e8ir, thig e gu \u00ecre gun magnetachadh gu l\u00e8ir. An uairsin faodar a mheadachadh gu l\u00e8ir le cleachdaidhean uidheamachd s\u00f2nraichte. Gus l\u00f9ghduineachadh fuarachadh dh\u00f2rainn ann an \u00e0rainneachdan \u00e0rd-teil le fuachd teann, bidh sgiobaidhean dealbhaidh a\u2019 toirt iomradh air stuthan \u00e0rd-speisidh mar eileamaidean te\u00f2thachd \u00e0rd <a href=\"https:\/\/nbaem.com\/gd\/what-are-the-grades-of-smco-magnets\/\">no ann as br\u00ecgh SmCo magnets<\/a>.<\/p>\n<h3>Ciamar a tha clachan-magnatat tachairt eadar-mheasgachadh ac fuarachadh feumaidh e a bhith a\u2019 falbh bho chonntact corporra?<\/h3>\n<p><strong>Dhethadh-sg\u00e0than dc\u00e0baichte<\/strong> thoir-neach goal-adhair a thoirt air falbh gu astar le bhith a\u2019 didseal an stuth tro bhith gan bhe\u00f2-ghlantachadh ann an suidheachadh a tha a\u2019 leagadh a-steach <strong>l\u00f9b hysteraiseach<\/strong>:<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>D\u00e8idheaganachadh polarity:<\/strong> Tha an degauseragnachadh a\u2019 gineadh p\u00e0tran-dhearista leannanach a tha a\u2019 cuideachadh nan dipoles auatomach gus an d\u00e8iligeadh gu leantainneach a ghairm<\/li>\n<li><strong>Caill-adhair na h-urrainn:<\/strong> Mar a chuireas tu an magnet gu slaodach air falbh bhon coil, bidh neart na raon a tha air fhaighinn leis an magnet a\u2019 f\u00e0gail a-mach gu slaodach<\/li>\n<li><strong>D\u00f2imhneachadh roinnean:<\/strong> G\u00e0irdean gach cuairteachadh a tha an eadar-ama a\u2019 f\u00e0gail buidhnean roinnean nas lugha a tha air an g\u00e8illeadh gu sti\u00f9ireadh nan d\u00e0rna taobh, a\u2019 cur air ais <strong>feumachadh (Br)<\/strong> air ais gu neoni gun teagmhail ris an magnet.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div id=\"references\">\n<h2>Meteran co-cheangailte<\/h2>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Magnet\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/en.wikipedia.org\/wiki\/Magnet<\/a><\/li>\n<li><a href=\"https:\/\/www.stanfordmagnets.com\/maximum-operating-temperature-vs-curie-temperature.html\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.stanfordmagnets.com\/maximum-operating-temperature-vs-curie-temperature.html<\/a><\/li>\n<li><a href=\"https:\/\/www.dextermag.com\/resources-old\/faq-magnetic-theory-design\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.dextermag.com\/resources-old\/faq-magnetic-theory-design\/<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ciamar a dhearc-aonachadh magnet le ceumannan s\u00e0bhailte ceum air CEUM a\u2019 cleachdadh te\u00f2thachdidh, mullaichtean agus \u0431\u0430\u0437 AC airson sti\u00f9ireadh DIY agus teicnigeach<\/p>","protected":false},"author":1,"featured_media":3972,"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-3973","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\/2026\/08\/Magnet_demagnetization_methods_2jG.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/3973","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/comments?post=3973"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/3973\/revisions"}],"predecessor-version":[{"id":3987,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/3973\/revisions\/3987"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/media\/3972"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/media?parent=3973"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/categories?post=3973"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/tags?post=3973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}