{"id":3186,"date":"2025-10-14T01:25:13","date_gmt":"2025-10-14T01:25:13","guid":{"rendered":"https:\/\/nbaem.com\/?p=3186"},"modified":"2025-10-14T02:00:33","modified_gmt":"2025-10-14T02:00:33","slug":"what-is-the-disc-magnet","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-the-disc-magnet\/","title":{"rendered":"\u0110\u1ecbnh ngh\u0129a c\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u0129a, lo\u1ea1i, \u0111\u1ed9 m\u1ea1nh v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>B\u1ea1n \u0111\u00e3 t\u1eebng t\u1ef1 h\u1ecfi <strong>nam ch\u00e2m \u0111\u0129a l\u00e0 g\u00ec<\/strong> th\u1eadt s\u1ef1 l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i xu\u1ea5t hi\u1ec7n \u1edf kh\u1eafp m\u1ecdi n\u01a1i\u2014t\u1eeb c\u1eeda t\u1ee7 l\u1ea1nh c\u1ee7a b\u1ea1n \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng ngh\u1ec7 cao? Nh\u1eefng nam ch\u00e2m nh\u1ecf, ph\u1eb3ng, h\u00ecnh tr\u00f2n n\u00e0y ch\u1ee9a \u0111\u1ef1ng s\u1ee9c m\u1ea1nh \u0111\u00e1ng ng\u1ea1c nhi\u00ean, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn trong v\u00f4 s\u1ed1 ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 d\u1ef1 \u00e1n t\u1ef1 l\u00e0m. D\u00f9 b\u1ea1n t\u00f2 m\u00f2 v\u1ec1 h\u00ecnh d\u1ea1ng \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u00fang, c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng, hay l\u00fd do t\u1ea1i sao<a href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\"> nam ch\u00e2m \u0111\u0129a neodymium<\/span><\/strong><\/a> chi\u1ebfm \u01b0u th\u1ebf, h\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd ph\u00e2n t\u00edch t\u1ea5t c\u1ea3\u2014nhanh ch\u00f3ng, r\u00f5 r\u00e0ng v\u00e0 th\u1ef1c t\u1ebf. S\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 nh\u1eefng b\u00ed m\u1eadt \u0111\u1eb1ng sau <strong>nam ch\u00e2m \u0111\u0129a<\/strong> v\u00e0 kh\u00e1m ph\u00e1 c\u00e1ch ch\u00fang c\u00f3 th\u1ec3 n\u00e2ng cao d\u1ef1 \u00e1n ti\u1ebfp theo c\u1ee7a b\u1ea1n? H\u00e3y b\u1eaft \u0111\u1ea7u n\u00e0o!<\/p>\n<h2>Hi\u1ec3u bi\u1ebft c\u01a1 b\u1ea3n<\/h2>\n<h3>Nam ch\u00e2m \u0111\u0129a l\u00e0 g\u00ec<\/h3>\n<p>B\u1ea1n \u0111\u00e3 t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec khi\u1ebfn nam ch\u00e2m \u0111\u0129a tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t? N\u00f3i \u0111\u01a1n gi\u1ea3n, nam ch\u00e2m \u0111\u0129a l\u00e0 m\u1ed9t lo\u1ea1i <strong>nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> h\u00ecnh d\u1ea1ng nh\u01b0 m\u1ed9t chi\u1ebfc b\u00e1nh pancake kim lo\u1ea1i nh\u1ecf, ph\u1eb3ng, t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb. H\u00ecnh d\u1ea1ng n\u00e0y l\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nh\u01b0 kh\u1ed1i, v\u00f2ng ho\u1eb7c h\u00ecnh c\u1ea7u.<\/p>\n<h3>C\u1ea5u t\u1ea1o c\u1ee7a nam ch\u00e2m \u0111\u0129a<\/h3>\n<p>Nam ch\u00e2m \u0111\u0129a c\u00f3 hai m\u1eb7t ph\u1eb3ng\u2014ph\u00eda tr\u00ean v\u00e0 ph\u00eda d\u01b0\u1edbi\u2014n\u01a1i c\u00e1c c\u1ef1c t\u1eeb t\u1eadp trung. Nh\u1eefng m\u1eb7t n\u00e0y th\u01b0\u1eddng l\u00e0 n\u01a1i c\u00f3 l\u1ef1c h\u00fat t\u1eeb m\u1ea1nh nh\u1ea5t. Vi\u1ec1n c\u1ee7a \u0111\u0129a m\u1ecfng h\u01a1n nhi\u1ec1u so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a n\u00f3, mang l\u1ea1i di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t r\u1ed9ng gi\u00fap t\u1ed1i \u0111a h\u00f3a s\u1ee9c m\u1ea1nh t\u1eeb trong m\u1ed9t h\u00ecnh d\u1ea1ng nh\u1ecf g\u1ecdn.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nam ch\u00e2m \u0111\u0129a v\u00e0 c\u00e1c h\u00ecnh d\u1ea1ng kh\u00e1c<\/h3>\n<p>\u0110i\u1ec1u g\u00ec l\u00e0m cho nam ch\u00e2m \u0111\u0129a n\u1ed5i b\u1eadt? Kh\u00e1c v\u1edbi nam ch\u00e2m kh\u1ed1i, c\u00f3 tr\u01b0\u1eddng t\u1eeb \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n, nam ch\u00e2m \u0111\u0129a t\u1eadp trung l\u1ef1c t\u1eeb qua c\u00e1c m\u1eb7t ph\u1eb3ng c\u1ee7a n\u00f3. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng khi b\u1ea1n c\u1ea7n m\u1ed9t nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi kh\u00f4ng gian ch\u1eadt h\u1eb9p ho\u1eb7c c\u1ea7n gi\u1eef c\u00e1c v\u1eadt ph\u1eb3ng s\u00e1t v\u00e0o b\u1ec1 m\u1eb7t.<\/p>\n<p>Nam ch\u00e2m \u0111\u0129a \u0111\u1eb7c bi\u1ec7t ph\u1ed5 bi\u1ebfn v\u00ec h\u00ecnh d\u1ea1ng c\u1ee7a ch\u00fang k\u1ebft h\u1ee3p s\u1ee9c m\u1ea1nh v\u00e0 t\u00ednh linh ho\u1ea1t. D\u00f9 b\u1ea1n c\u1ea7n m\u1ed9t nam ch\u00e2m nh\u1ecf cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1eb7c m\u1ed9t nam ch\u00e2m \u0111\u0129a neodymium m\u1ea1nh m\u1ebd cho c\u00f4ng nghi\u1ec7p, h\u00ecnh d\u1ea1ng \u0111\u0129a mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng l\u00fd t\u01b0\u1edfng m\u00e0 c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m v\u0129nh c\u1eedu kh\u00e1c kh\u00f4ng c\u00f3.<\/p>\n<p>T\u00f3m l\u1ea1i, n\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh m\u1ea1nh m\u1ebd, ti\u1ebft ki\u1ec7m kh\u00f4ng gian v\u00e0 d\u1ec5 d\u00e0ng \u0111\u1ecbnh v\u1ecb, nam ch\u00e2m \u0111\u0129a th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u.<\/p>\n<h2>C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u, c\u1ea5p \u0111\u1ed9 v\u00e0 c\u00e1ch magnet h\u00f3a c\u1ee7a nam ch\u00e2m \u0111\u0129a gi\u1ea3i th\u00edch<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Disc_Magnets_Materials_Grades_Magnetization_RHLm2i.webp\" alt=\"V\u1eadt li\u1ec7u Nam ch\u00e2m \u0111\u0129a C\u1ea5p \u0111\u1ed9 T\u1eeb h\u00f3a\" \/><\/p>\n<p>Nam ch\u00e2m \u0111\u0129a c\u00f3 nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u, c\u1ea5p \u0111\u1ed9 v\u00e0 ki\u1ec3u magnet h\u00f3a kh\u00e1c nhau. L\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 m\u1ea1nh, \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ea1n.<\/p>\n<h3>V\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m \u0111\u0129a neodymium<\/strong>: Lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t, c\u00f2n g\u1ecdi l\u00e0 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm. Ch\u00fang c\u1ef1c k\u1ef3 m\u1ea1nh m\u1ebd so v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang v\u00e0 r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c nam ch\u00e2m gi\u1eef ch\u1eb7t trong c\u00f4ng nghi\u1ec7p ho\u1eb7c d\u1ef1 \u00e1n DIY c\u1ea7n l\u1ef1c h\u00fat m\u1ea1nh.<\/li>\n<li><strong>Nam Ch\u00e2m G\u1ed1m ho\u1eb7c Ferrite<\/strong>: Ph\u00f9 h\u1ee3p h\u01a1n v\u1ec1 m\u1eb7t gi\u00e1 c\u1ea3 nh\u01b0ng y\u1ebfu h\u01a1n neodymium. Ch\u00fang ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh cho c\u00e1c m\u1ee5c \u0111\u00edch gia \u0111\u00ecnh \u0111\u01a1n gi\u1ea3n.<\/li>\n<li><strong>Nam Ch\u00e2m Alnico<\/strong>: L\u00e0m t\u1eeb nh\u00f4m, niken v\u00e0 cobalt. Ch\u00fang gi\u1eef \u0111\u01b0\u1ee3c s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0ng d\u1ec5 v\u1ee1 h\u01a1n.<\/li>\n<li><strong>Samari C\u00f4ban<\/strong>: M\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u1ea5t hi\u1ebfm kh\u00e1c. M\u1ea1nh m\u1ebd, ch\u1ecbu nhi\u1ec7t t\u1ed1t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n, nh\u01b0ng \u0111\u1eaft h\u01a1n neodymium.<\/li>\n<\/ul>\n<h3>H\u01b0\u1edbng t\u1eeb h\u00f3a: Tr\u1ee5c d\u1ecdc so v\u1edbi \u0110\u01b0\u1eddng k\u00ednh<\/h3>\n<p>Nam ch\u00e2m \u0111\u0129a th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a theo m\u1ed9t trong hai c\u00e1ch:<\/p>\n<ul>\n<li><strong>T\u1eeb h\u00f3a theo tr\u1ee5c<\/strong>: C\u00e1c c\u1ef1c t\u1eeb n\u1eb1m tr\u00ean m\u1eb7t ph\u1eb3ng tr\u00f2n c\u1ee7a nam ch\u00e2m. \u0110\u00e2y l\u00e0 c\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 c\u00f3 ngh\u0129a l\u00e0 l\u1ef1c h\u00fat c\u1ee7a nam ch\u00e2m t\u00e1c d\u1ee5ng th\u1eb3ng ra kh\u1ecfi m\u1eb7t ph\u1eb3ng \u0111\u00f3.<\/li>\n<li><strong>T\u1eeb h\u00f3a theo \u0111\u01b0\u1eddng k\u00ednh<\/strong>: C\u00e1c c\u1ef1c n\u1eb1m tr\u00ean c\u1ea1nh cong c\u1ee7a \u0111\u0129a. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p nam ch\u00e2m t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb ngang, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1eb7c bi\u1ec7t.<\/li>\n<\/ul>\n<h3>C\u1ea5p \u0111\u1ed9 v\u00e0 l\u1edbp ph\u1ee7 \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n<\/h3>\n<ul>\n<li><strong>C\u00e1c lo\u1ea1i<\/strong>: Nam ch\u00e2m neodymium \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo c\u1ea5p nh\u01b0 N35, N52, v.v. S\u1ed1 c\u00e0ng cao th\u00ec nam ch\u00e2m c\u00e0ng m\u1ea1nh. V\u00ed d\u1ee5, N52 l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i m\u1ea1nh nh\u1ea5t b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y.<\/li>\n<li><strong>L\u1edbp ph\u1ee7<\/strong>: \u0110\u1ec3 b\u1ea3o v\u1ec7 \u0111\u0129a kh\u1ecfi r\u1ec9 s\u00e9t ho\u1eb7c h\u01b0 h\u1ecfng, nh\u00e0 s\u1ea3n xu\u1ea5t th\u00eam l\u1edbp ph\u1ee7 nh\u01b0 nickel-copper-nickel, epoxy ho\u1eb7c zinc. \u0110\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nam ch\u00e2m d\u00f9ng ngo\u00e0i tr\u1eddi ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt.<\/li>\n<\/ul>\n<p>Khi ch\u1ecdn mua nam ch\u00e2m \u0111\u0129a, h\u00e3y xem x\u00e9t \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u, ki\u1ec3u t\u1eeb h\u00f3a v\u00e0 l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 ph\u00f9 h\u1ee3p t\u1ed1t nh\u1ea5t cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n<h2>L\u1ee3i \u00edch ch\u00ednh t\u1ea1i sao ch\u1ecdn nam ch\u00e2m \u0111\u0129a cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n<\/h2>\n<p>Nam ch\u00e2m \u0111\u0129a mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf n\u1ed5i b\u1eadt khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho nhi\u1ec1u m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang \u0111\u00e1ng \u0111\u1ec3 xem x\u00e9t:<\/p>\n<h3>T\u1ef7 l\u1ec7 s\u1ee9c m\u1ea1nh so v\u1edbi k\u00edch th\u01b0\u1edbc v\u01b0\u1ee3t tr\u1ed9i<\/h3>\n<p>M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a nam ch\u00e2m \u0111\u0129a, \u0111\u1eb7c bi\u1ec7t <strong>nam ch\u00e2m \u0111\u0129a neodymium<\/strong>, l\u00e0 kh\u1ea3 n\u0103ng h\u00fat m\u1ea1nh m\u1ebd m\u1eb7c d\u00f9 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 l\u1ef1c gi\u1eef ch\u1eb7t m\u1ea1nh m\u1ebd trong m\u1ed9t h\u00ecnh d\u1ea1ng nh\u1ecf g\u1ecdn, d\u1ec5 l\u1eafp \u0111\u1eb7t. \u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n \u0111\u00f2i h\u1ecfi kh\u00f4ng gian h\u1ea1n ch\u1ebf nh\u01b0ng c\u1ea7n s\u1ee9c m\u1ea1nh, nam ch\u00e2m \u0111\u0129a cung c\u1ea5p m\u00e0 kh\u00f4ng g\u00e2y c\u1ed3ng k\u1ec1nh.<\/p>\n<h3>\u0110a d\u1ee5ng v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed<\/h3>\n<p>Nam ch\u00e2m \u0111\u0129a c\u1ef1c k\u1ef3 linh ho\u1ea1t. B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y ch\u00fang trong m\u1ecdi th\u1ee9 t\u1eeb nam ch\u00e2m gi\u1eef ch\u1eb7t c\u00f4ng nghi\u1ec7p \u0111\u1ebfn th\u1ee7 c\u00f4ng DIY. H\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n gi\u00fap d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u1ebft k\u1ebf kh\u00e1c nhau, d\u00f9 b\u1ea1n c\u1ea7n t\u1eeb t\u00ednh tr\u1ee5c d\u1ecdc hay t\u00f9y ch\u1ec9nh. Th\u00eam v\u00e0o \u0111\u00f3, v\u00ec ch\u00fang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t r\u1ed9ng r\u00e3i v\u00e0 l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm ph\u1ed5 bi\u1ebfn, nam ch\u00e2m \u0111\u0129a mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t m\u00e0 kh\u00f4ng c\u00f3 gi\u00e1 th\u00e0nh cao.<\/p>\n<p>Ch\u1ecdn nam ch\u00e2m \u0111\u0129a mang l\u1ea1i s\u1ef1 l\u1ef1a ch\u1ecdn b\u1ec1n b\u1ec9, \u0111\u00e1ng tin c\u1eady, c\u00e2n b\u1eb1ng gi\u1eefa k\u00edch th\u01b0\u1edbc, s\u1ee9c m\u1ea1nh v\u00e0 gi\u00e1 tr\u1ecb, ph\u00f9 h\u1ee3p cho c\u1ea3 d\u1ef1 \u00e1n chuy\u00ean nghi\u1ec7p v\u00e0 gia \u0111\u00ecnh. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1<strong><span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-a-cylinder-magnet\/\" target=\"_blank\" rel=\"noopener\">c\u1ea5u t\u1ea1o nam ch\u00e2m h\u00ecnh tr\u1ee5 l\u00e0 g\u00ec<\/a>.<\/span><\/strong><\/p>\n<h2>C\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf n\u01a1i b\u1ea1n s\u1ebd th\u1ea5y nam ch\u00e2m \u0111\u0129a ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Disc_magnet_uses_and_applications_Tr2kdIPqZ.webp\" alt=\"C\u00f4ng d\u1ee5ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a nam ch\u00e2m \u0111\u0129a\" \/><\/p>\n<p>Nam ch\u00e2m \u0111\u0129a xu\u1ea5t hi\u1ec7n \u1edf nhi\u1ec1u n\u01a1i xung quanh ch\u00fang ta. S\u1ee9c h\u00fat t\u1eeb tr\u01b0\u1eddng m\u1ea1nh m\u1ebd v\u00e0 h\u00ecnh d\u1ea1ng nh\u1ecf g\u1ecdn khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng, t\u1eeb s\u1eed d\u1ee5ng gia \u0111\u00ecnh \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn c\u00e1c nhi\u1ec7m v\u1ee5 c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p.<\/p>\n<h3>S\u1eed d\u1ee5ng trong gia \u0111\u00ecnh v\u00e0 DIY<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m t\u1ee7 l\u1ea1nh v\u00e0 d\u1ee5ng c\u1ee5 t\u1ed5 ch\u1ee9c<\/strong>: Nam ch\u00e2m \u0111\u0129a neodymium d\u00ednh ch\u1eb7t v\u00e0 gi\u1eef c\u00e1c gi\u1ea5y t\u1edd, ghi ch\u00fa, d\u1ee5ng c\u1ee5.<\/li>\n<li><strong>Th\u1ee7 c\u00f4ng v\u00e0 d\u1ef1 \u00e1n DIY<\/strong>: Ch\u00fang ho\u00e0n h\u1ea3o \u0111\u1ec3 t\u1ea1o c\u00e1c kh\u00f3a t\u00f9y ch\u1ec9nh, khoang ch\u1ee9a t\u1eeb t\u00ednh, v\u00e0 th\u1eadm ch\u00ed c\u00e1c thi\u1ebft b\u1ecb t\u1ef1 ch\u1ebf.<\/li>\n<li><strong>\u0110i\u1ec7n t\u1eed v\u00e0 thi\u1ebft b\u1ecb nh\u1ecf<\/strong>: B\u1ea1n s\u1ebd th\u1ea5y ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong loa, c\u1ea3m bi\u1ebfn, v\u00e0 \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady.<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m gi\u1eef c\u1ed1 \u0111\u1ecbnh c\u00f4ng nghi\u1ec7p<\/strong>: Nam ch\u00e2m \u0111\u0129a gi\u1eef ch\u1eb7t c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ho\u1eb7c l\u1eafp r\u00e1p, ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>\u00d4 t\u00f4 v\u00e0 m\u00e1y m\u00f3c<\/strong>: Nam ch\u00e2m \u0111\u0129a neodymium ph\u1ed5 bi\u1ebfn trong \u0111\u1ed9ng c\u01a1, m\u00e1y ph\u00e1t \u0111i\u1ec7n, c\u1ea3m bi\u1ebfn nh\u1edd s\u1ee9c m\u1ea1nh cao c\u1ee7a neodymium.<\/li>\n<li><strong>M\u00e1y t\u00e1ch t\u1eeb v\u00e0 b\u1ed9 l\u1ecdc t\u1eeb<\/strong>: Ch\u00fang gi\u00fap lo\u1ea1i b\u1ecf m\u1ea3nh kim lo\u1ea1i kh\u1ecfi v\u1eadt li\u1ec7u, gi\u1eef cho thi\u1ebft b\u1ecb an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<h3>S\u1eed d\u1ee5ng trong gi\u00e1o d\u1ee5c v\u00e0 s\u00e1ng t\u1ea1o<\/h3>\n<ul>\n<li><strong>B\u1ed9 d\u1ee5ng c\u1ee5 khoa h\u1ecdc v\u00e0 th\u00ed nghi\u1ec7m<\/strong>: Nam ch\u00e2m \u0111\u0129a gi\u00fap minh h\u1ecda c\u00e1c tr\u01b0\u1eddng v\u00e0 l\u1ef1c t\u1eeb trong l\u1edbp h\u1ecdc.<\/li>\n<li><strong>Nguy\u00ean m\u1eabu v\u00e0 \u0111\u1ed5i m\u1edbi<\/strong>: C\u00e1c nh\u00e0 s\u00e1ng ch\u1ebf v\u00e0 k\u1ef9 s\u01b0 th\u01b0\u1eddng d\u1ef1a v\u00e0o nh\u1eefng nam ch\u00e2m n\u00e0y \u0111\u1ec3 t\u1ea1o m\u1eabu v\u00e0 th\u1eed nghi\u1ec7m c\u00e1c thi\u1ebft k\u1ebf m\u1edbi, nh\u1edd v\u00e0o l\u1ef1c h\u00fat t\u1eeb t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb tr\u1ecb li\u1ec7u b\u1eb1ng t\u1eeb t\u00ednh<\/strong>: M\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u0129a, m\u1eb7c d\u00f9 lu\u00f4n n\u00ean ki\u1ec3m tra c\u00e1c tuy\u00ean b\u1ed1 d\u1ef1a tr\u00ean khoa h\u1ecdc tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<p>D\u00f9 b\u1ea1n \u0111ang s\u1eeda ch\u1eefa g\u00ec \u1edf nh\u00e0 hay l\u00e0m vi\u1ec7c tr\u00ean m\u1ed9t d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p l\u1edbn, nam ch\u00e2m \u0111\u0129a mang l\u1ea1i s\u1ef1 linh ho\u1ea1t v\u00e0 s\u1ee9c m\u1ea1nh t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t.<\/p>\n<h2>C\u00e1ch ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u0129a an to\u00e0n<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang nam ch\u00e2m \u0111\u0129a b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c hi\u1ec3u r\u00f5 nhu c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n xem x\u00e9t:<\/p>\n<ul>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m<\/strong>: Ph\u00f9 h\u1ee3p l\u1ef1c h\u00fat t\u1eeb t\u00ednh v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. Nam ch\u00e2m l\u1edbn ho\u1eb7c m\u1ea1nh h\u01a1n nh\u01b0 nam ch\u00e2m neodymium cao c\u1ea5p ph\u00f9 h\u1ee3p cho c\u00e1c c\u00f4ng vi\u1ec7c n\u1eb7ng, trong khi c\u00e1c lo\u1ea1i nh\u1ecf h\u01a1n ph\u00f9 h\u1ee3p cho th\u1ee7 c\u00f4ng ho\u1eb7c s\u1eeda ch\u1eefa nh\u1eb9.<\/li>\n<li><strong>Ch\u1ea5t li\u1ec7u v\u00e0 c\u1ea5p \u0111\u1ed9<\/strong>: Ch\u1ecdn ch\u1ea5t li\u1ec7u ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t. Nam ch\u00e2m neodymium cung c\u1ea5p s\u1ee9c m\u1ea1nh v\u01b0\u1ee3t tr\u1ed9i, trong khi nam ch\u00e2m ferrite ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch h\u01a1n nh\u01b0ng \u00edt m\u1ea1nh h\u01a1n.<\/li>\n<li><strong>H\u01b0\u1edbng t\u1eeb h\u00f3a<\/strong>: Quy\u1ebft \u0111\u1ecbnh gi\u1eefa magnet h\u00f3a tr\u1ee5c (magnet h\u00f3a qua \u0111\u1ed9 d\u00e0y) ho\u1eb7c \u0111\u1ed1i x\u1ee9ng, t\u00f9y thu\u1ed9c v\u00e0o c\u00e1ch b\u1ea1n s\u1ebd \u0111\u1ecbnh v\u1ecb nam ch\u00e2m.<\/li>\n<li><strong>L\u1edbp ph\u1ee7<\/strong>: Ch\u1ecdn l\u1edbp ph\u1ee7 t\u00f9y ch\u1ec9nh cho nam ch\u00e2m nh\u01b0 nickel ho\u1eb7c epoxy \u0111\u1ec3 ch\u1ed1ng r\u1ec9 s\u00e9t v\u00e0 m\u00e0i m\u00f2n, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n<p>Khi x\u1eed l\u00fd nam ch\u00e2m \u0111\u0129a, h\u00e3y tu\u00e2n th\u1ee7 c\u00e1c m\u1eb9o an to\u00e0n sau:<\/p>\n<ul>\n<li><strong>Gi\u1eef nam ch\u00e2m xa kh\u1ecfi thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed<\/strong>: Nam ch\u00e2m m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c th\u1ebb t\u00edn d\u1ee5ng.<\/li>\n<li><strong>Tr\u00e1nh b\u1ecb k\u1eb9p<\/strong>: Nam ch\u00e2m \u0111\u0129a nhanh ch\u00f3ng d\u00ednh ch\u1eb7t l\u1ea1i v\u1edbi nhau v\u00e0 c\u00f3 th\u1ec3 k\u1eb9p v\u00e0o da. X\u1eed l\u00fd c\u1ea9n th\u1eadn.<\/li>\n<li><strong>L\u01b0u tr\u1eef an to\u00e0n<\/strong>: Gi\u1eef nam ch\u00e2m tr\u00e1nh xa t\u1ea7m tay c\u1ee7a tr\u1ebb em v\u00e0 th\u00fa c\u01b0ng \u0111\u1ec3 tr\u00e1nh nu\u1ed1t ph\u1ea3i g\u00e2y nguy hi\u1ec3m.<\/li>\n<li><strong>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p<\/strong>: Khi l\u1eafp \u0111\u1eb7t nam ch\u00e2m gi\u1eef c\u00f4ng nghi\u1ec7p, h\u00e3y s\u1eed d\u1ee5ng g\u0103ng tay v\u00e0 d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd nam ch\u00e2m \u0111\u1ec3 tr\u00e1nh tai n\u1ea1n.<\/li>\n<\/ul>\n<p>T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 t\u1eeb h\u00f3a c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u01b0\u1ee3c nam ch\u00e2m \u0111\u0129a ho\u00e0n h\u1ea3o. V\u00ed d\u1ee5: h\u00e3y xem t\u1eeb h\u00f3a d\u1ecdc tr\u1ee5c c\u00f3 ngh\u0129a l\u00e0 g\u00ec \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m.<\/p>\n<p>B\u1eb1ng c\u00e1ch ghi nh\u1edb nh\u1eefng y\u1ebfu t\u1ed1 v\u00e0 m\u1eb9o an to\u00e0n n\u00e0y, b\u1ea1n s\u1ebd ch\u1ecdn \u0111\u01b0\u1ee3c nam ch\u00e2m \u0111\u0129a ph\u00f9 h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng n\u00f3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh.<\/p>\n<h2>NBAEM \u0110\u1ed1i t\u00e1c \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ea1n v\u1ec1 Nam ch\u00e2m \u0111\u0129a cao c\u1ea5p<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn nam ch\u00e2m \u0111\u0129a ch\u1ea5t l\u01b0\u1ee3ng cao, NBAEM n\u1ed5i b\u1eadt l\u00e0 nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady tr\u00ean th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. Ch\u00fang t\u00f4i chuy\u00ean cung c\u1ea5p nam ch\u00e2m \u0111\u0129a neodymium h\u00e0ng \u0111\u1ea7u v\u1edbi l\u1ef1c h\u00fat t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, ho\u00e0n h\u1ea3o cho m\u1ecdi th\u1ee9, t\u1eeb nam ch\u00e2m gi\u1eef c\u00f4ng nghi\u1ec7p \u0111\u1ebfn c\u00e1c d\u1ef1 \u00e1n DIY h\u00e0ng ng\u00e0y.<\/p>\n<p>T\u1ea1i sao ch\u1ecdn NBAEM?<\/p>\n<ul>\n<li><strong>Nhi\u1ec1u l\u1ef1a ch\u1ecdn<\/strong> nam ch\u00e2m \u0111\u0129a neodymium v\u1edbi nhi\u1ec1u k\u00edch c\u1ee1, c\u1ea5p \u0111\u1ed9 v\u00e0 ki\u1ec3u t\u1eeb h\u00f3a kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 t\u1eeb h\u00f3a d\u1ecdc tr\u1ee5c<\/li>\n<li><strong>L\u1edbp ph\u1ee7 t\u00f9y ch\u1ec9nh<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau<\/li>\n<li><strong>Cung c\u1ea5p s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/strong> c\u00e1c t\u00f9y ch\u1ecdn ph\u00f9 h\u1ee3p cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t, k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi c\u00f3 s\u1edf th\u00edch<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 chuy\u00ean nghi\u1ec7p<\/strong> \u0111\u1ec3 gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang nam ch\u00e2m cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh, cho d\u00f9 \u0111\u00f3 l\u00e0 cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng trong gia \u0111\u00ecnh hay c\u00e1c thi\u1ebft l\u1eadp c\u00f4ng nghi\u1ec7p kh\u1eaft khe h\u01a1n<\/li>\n<\/ul>\n<p>Cam k\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a kh\u00e1ch h\u00e0ng khi\u1ebfn NBAEM tr\u1edf th\u00e0nh ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u ri\u00eang c\u1ee7a kh\u00e1ch h\u00e0ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n<p>V\u1edbi NBAEM, b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 gi\u00e1 tr\u1ecb l\u00e2u d\u00e0i trong m\u1ecdi nam ch\u00e2m \u0111\u0129a.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 xem nam ch\u00e2m \u0111\u0129a l\u00e0 g\u00ec, c\u00e1c lo\u1ea1i, \u0111\u1ed9 m\u1ea1nh v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3 v\u1edbi h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 nam ch\u00e2m \u0111\u0129a neodymium v\u00e0 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>","protected":false},"author":1,"featured_media":3184,"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-3186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Disc_magnet_uses_and_applications_Tr2kdIPqZ.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/comments?post=3186"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3186\/revisions"}],"predecessor-version":[{"id":3187,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3186\/revisions\/3187"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3184"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}