{"id":3267,"date":"2025-10-25T06:42:49","date_gmt":"2025-10-25T06:42:49","guid":{"rendered":"https:\/\/nbaem.com\/?p=3267"},"modified":"2025-10-25T06:56:02","modified_gmt":"2025-10-25T06:56:02","slug":"how-to-choose-the-right-magnet-for-your-appliances","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/how-to-choose-the-right-magnet-for-your-appliances\/","title":{"rendered":"C\u00e1ch ch\u1ecdn nam ch\u00e2m ph\u00f9 h\u1ee3p cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n"},"content":{"rendered":"<h2>Hi\u1ec3u v\u1ec1 Nam ch\u00e2m v\u00e0 vai tr\u00f2 c\u1ee7a ch\u00fang trong thi\u1ebft b\u1ecb gia d\u1ee5ng<\/h2>\n<p>B\u1ea1n \u0111\u00e3 t\u1eebng t\u1ef1 h\u1ecfi c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m trong c\u00e1c thi\u1ebft b\u1ecb h\u00e0ng ng\u00e0y c\u1ee7a b\u1ea1n ch\u01b0a? Nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u00fap nhi\u1ec1u thi\u1ebft b\u1ecb gia \u0111\u00ecnh ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru. \u1ede m\u1ee9c c\u01a1 b\u1ea3n, nam ch\u00e2m g\u1ed3m hai lo\u1ea1i: nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 nam ch\u00e2m \u0111i\u1ec7n. Nam ch\u00e2m v\u0129nh c\u1eedu t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng li\u00ean t\u1ee5c, trong khi nam ch\u00e2m \u0111i\u1ec7n ch\u1ec9 sinh t\u1eeb khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua ch\u00fang.<\/p>\n<p>Trong thi\u1ebft b\u1ecb gia d\u1ee5ng, nh\u1eefng nam ch\u00e2m n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong \u0111\u1ed9ng c\u01a1, ch\u1ed1t kh\u00f3a, c\u1ea3m bi\u1ebfn v\u00e0 loa. V\u00ed d\u1ee5, \u0111\u1ed9ng c\u01a1 trong m\u00e1y gi\u1eb7t c\u1ee7a b\u1ea1n d\u1ef1a v\u00e0o nam ch\u00e2m \u0111\u1ec3 quay tr\u1ed1ng. Ch\u1ed1t kh\u00f3a t\u1eeb gi\u1eef c\u1eeda t\u1ee7 l\u1ea1nh k\u00edn ch\u1eb7t, v\u00e0 c\u1ea3m bi\u1ebfn trong l\u00f2 vi s\u00f3ng s\u1eed d\u1ee5ng nam ch\u00e2m \u0111\u1ec3 ph\u00e1t hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng ho\u1eb7c v\u1ecb tr\u00ed.<\/p>\n<p>C\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng ph\u1ed5 bi\u1ebfn ph\u1ee5 thu\u1ed9c v\u00e0o nam ch\u00e2m bao g\u1ed3m t\u1ee7 l\u1ea1nh, l\u00f2 vi s\u00f3ng, m\u00e1y gi\u1eb7t v\u00e0 loa \u00e2m thanh. M\u1ed7i lo\u1ea1i s\u1eed d\u1ee5ng nam ch\u00e2m kh\u00e1c nhau d\u1ef1a tr\u00ean thi\u1ebft k\u1ebf v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3.<\/p>\n<h3>C\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb gia d\u1ee5ng<\/h3>\n<ul>\n<li><a href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>Neodymium (NdFeB)<\/strong><\/span>:<\/a> N\u1ed5i ti\u1ebfng v\u1edbi \u0111\u1ed9 m\u1ea1nh cao v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, nam ch\u00e2m neodymium l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i ti\u1ebft ki\u1ec7m kh\u00f4ng gian nh\u01b0 loa \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, \u0111\u1ed9ng c\u01a1 nh\u1ecf g\u1ecdn v\u00e0 c\u1ea3m bi\u1ebfn ch\u00ednh x\u00e1c.<\/li>\n<li><a href=\"https:\/\/nbaem.com\/vi\/products\/ceramic-magnet\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>Ferrite (G\u1ed1m)<\/strong>:<\/span> <\/a>Nh\u1eefng nam ch\u00e2m n\u00e0y c\u00f3 chi ph\u00ed h\u1ee3p l\u00fd v\u00e0 \u0111\u1ed9 b\u1ec1n cao, ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb l\u1edbn h\u01a1n nh\u01b0 gio\u0103ng t\u1ee7 l\u1ea1nh v\u00e0 b\u1ed9 ph\u1eadn m\u00e1y gi\u1eb7t.<\/li>\n<li><a href=\"https:\/\/nbaem.com\/vi\/products\/alnico-magnet\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>Alnico<\/strong>:<\/span> <\/a>Nam ch\u00e2m Alnico ch\u1ecbu nhi\u1ec7t t\u1ed1t, \u0111\u00f3 l\u00e0 l\u00fd do ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t, nh\u01b0 m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n l\u00f2 vi s\u00f3ng ho\u1eb7c c\u1ea3m bi\u1ebfn nhi\u1ec7t.<\/li>\n<li><a href=\"https:\/\/nbaem.com\/vi\/products\/samarium-cobalt-magnets\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>Cobalt Samari (SmCo)<\/strong>:<\/span><\/a> N\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, nam ch\u00e2m SmCo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb \u0111\u1eb7c bi\u1ec7t c\u1ea7n hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady theo th\u1eddi gian.<\/li>\n<\/ul>\n<h3>C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a nam ch\u00e2m trong thi\u1ebft b\u1ecb gia d\u1ee5ng<\/h3>\n<p>Khi ch\u1ecdn nam ch\u00e2m ph\u00f9 h\u1ee3p, h\u00e3y xem x\u00e9t c\u00e1c \u0111\u1eb7c t\u00ednh thi\u1ebft y\u1ebfu sau:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng<\/strong>: \u0110\u01b0\u1ee3c \u0111o b\u1eb1ng gauss ho\u1eb7c tesla, \u0111i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>Ch\u1ecbu nhi\u1ec7t<\/strong>: \u0110\u1ea3m b\u1ea3o nam ch\u00e2m c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 trong thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng ph\u00f9 h\u1ee3p<\/strong>: Nam ch\u00e2m ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi kh\u00f4ng gian c\u00f3 s\u1eb5n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n v\u00e0 l\u1edbp ph\u1ee7<\/strong>: Nam ch\u00e2m b\u1ec1n v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 m\u00e0i m\u00f2n s\u1ebd c\u00f3 tu\u1ed5i th\u1ecd l\u00e2u h\u01a1n, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ul>\n<p>Hi\u1ec3u nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t khi ch\u1ecdn nam ch\u00e2m cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Choosing_Appliance_Magnet_Types_and_Factors_bPynGn.webp\" alt=\"L\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i nam ch\u00e2m cho thi\u1ebft b\u1ecb v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t\" \/><\/p>\n<h3>Lo\u1ea1i thi\u1ebft b\u1ecb v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a nam ch\u00e2m<\/h3>\n<p>B\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb v\u00e0 vai tr\u00f2 c\u1ee7a nam ch\u00e2m\u2014li\u1ec7u n\u00f3 \u0111ang \u0111i\u1ec1u khi\u1ec3n m\u1ed9t \u0111\u1ed9ng c\u01a1, gi\u1eef k\u00edn k\u00edn c\u1eeda, hay l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a loa. C\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau c\u1ea7n c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau. V\u00ed d\u1ee5:<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m Neodymium<\/strong> l\u00e0 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111\u1ed9ng c\u01a1 nh\u1ecf g\u1ecdn, hi\u1ec7u su\u1ea5t cao nh\u1edd v\u00e0o s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng m\u1ea1nh m\u1ebd trong k\u00edch th\u01b0\u1edbc nh\u1ecf.<\/li>\n<li><strong>Nam ch\u00e2m ferrite<\/strong> ho\u1ea1t \u0111\u1ed9ng t\u1ed1t cho c\u00e1c mi\u1ebfng \u0111\u1ec7m c\u1eeda t\u1ee7 l\u1ea1nh ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb l\u1edbn h\u01a1n n\u01a1i chi ph\u00ed v\u00e0 \u0111\u1ed9 b\u1ec1n quan tr\u1ecdng h\u01a1n k\u00edch th\u01b0\u1edbc.<\/li>\n<\/ul>\n<h3>Nhu c\u1ea7u v\u1ec1 \u0110\u1ed9 m\u1ea1nh v\u00e0 Hi\u1ec7u su\u1ea5t<\/h3>\n<p>Ph\u00f9 h\u1ee3p \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m v\u1edbi t\u1ea3i tr\u1ecdng ho\u1eb7c nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3 trong thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n. S\u1eed d\u1ee5ng nam ch\u00e2m qu\u00e1 y\u1ebfu c\u00f3 th\u1ec3 g\u00e2y hi\u1ec7u su\u1ea5t k\u00e9m, nh\u01b0ng nam ch\u00e2m qu\u00e1 m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c th\u00e0nh ph\u1ea7n ho\u1eb7c l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng. Lu\u00f4n ki\u1ec3m tra c\u00e1c m\u1ee9c gauss ho\u1eb7c tesla y\u00eau c\u1ea7u cho c\u00f4ng vi\u1ec7c.<\/p>\n<h3>\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>Xem x\u00e9t c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean trong thi\u1ebft b\u1ecb:<\/p>\n<ul>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>: M\u1ed9t s\u1ed1 nam ch\u00e2m m\u1ea5t \u0111\u1ed9 m\u1ea1nh ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng do nhi\u1ec7t. \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t cao, nh\u01b0 l\u00f2 n\u01b0\u1edbng ho\u1eb7c m\u1ed9t s\u1ed1 \u0111\u1ed9ng c\u01a1, <strong>Nam ch\u00e2m Alnico<\/strong> l\u00e0 ph\u00f9 h\u1ee3p h\u01a1n nh\u1edd kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a ch\u00fang.<\/li>\n<li><strong>\u0110\u1ed9 \u1ea9m v\u00e0 \u0102n m\u00f2n<\/strong>: N\u1ebfu thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt ho\u1eb7c c\u00f3 \u0111\u1ed9 \u1ea9m cao, h\u00e3y ch\u1ecdn nam ch\u00e2m ch\u1ed1ng \u0103n m\u00f2n. C\u00e1c nam ch\u00e2m neodymium ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 <strong>Cobalt Samari (SmCo)<\/strong> ch\u1ecbu t\u1ed1t trong nh\u1eefng t\u00ecnh hu\u1ed1ng \u0111\u00f3.<\/li>\n<\/ul>\n<h3>H\u1ea1n ch\u1ebf v\u1ec1 K\u00edch th\u01b0\u1edbc v\u00e0 H\u00ecnh d\u1ea1ng<\/h3>\n<p>\u0110o k\u00edch th\u01b0\u1edbc kh\u00f4ng gian n\u01a1i nam ch\u00e2m s\u1ebd l\u1eafp \u0111\u1eb7t. C\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1eddng y\u00eau c\u1ea7u c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m c\u1ee5 th\u1ec3 nh\u01b0 \u0111\u0129a, kh\u1ed1i ho\u1eb7c v\u00f2ng \u2014 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 l\u00e0 thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh. \u0110\u1ea3m b\u1ea3o k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n tr\u00e1nh r\u1eafc r\u1ed1i trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m ph\u1ed5 bi\u1ebfn, h\u00e3y xem qua <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-the-disc-magnet\/\" target=\"_blank\" rel=\"noopener\">t\u1ed5ng quan v\u1ec1 nam ch\u00e2m \u0111\u0129a<\/a><\/strong><\/span>.<\/p>\n<h3>Xem x\u00e9t ng\u00e2n s\u00e1ch<\/h3>\n<p>C\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau c\u00f3 m\u1ee9c gi\u00e1 kh\u00e1c nhau. Nam ch\u00e2m ferrite ph\u00f9 h\u1ee3p v\u1edbi ng\u00e2n s\u00e1ch h\u01a1n nh\u01b0ng \u00edt m\u1ea1nh h\u01a1n. Nam ch\u00e2m neodymium c\u00f3 gi\u00e1 cao h\u01a1n ban \u0111\u1ea7u nh\u01b0ng mang l\u1ea1i \u0111\u1ed9 m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n, gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed l\u00e2u d\u00e0i v\u1edbi \u00edt l\u1ea7n thay th\u1ebf h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb t\u1ed1t h\u01a1n. C\u00e1c nh\u00e0 cung c\u1ea5p uy t\u00edn nh\u01b0 NBAEM cung c\u1ea5p c\u00e1c lo\u1ea1i nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng, c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t, mang l\u1ea1i ti\u1ebft ki\u1ec7m l\u00e2u d\u00e0i.<\/p>\n<p>Ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 ch\u1ecdn lo\u1ea1i m\u1ea1nh nh\u1ea5t\u2014m\u00e0 c\u00f2n l\u00e0 t\u00ecm ra lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n.<\/p>\n<h2>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m<\/h2>\n<h3>B\u01b0\u1edbc 1 X\u00e1c \u0111\u1ecbnh Nhu c\u1ea7u v\u1ec1 Nam ch\u00e2m c\u1ee7a Thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n<\/h3>\n<p>B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ki\u1ec3m tra h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ec3 bi\u1ebft ch\u00ednh x\u00e1c lo\u1ea1i v\u00e0 k\u00edch th\u01b0\u1edbc nam ch\u00e2m c\u1ea7n thi\u1ebft. N\u1ebfu th\u00f4ng tin n\u00e0y kh\u00f4ng r\u00f5 r\u00e0ng, h\u00e3y li\u00ean h\u1ec7 v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb ho\u1eb7c nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn. Bi\u1ebft r\u00f5 y\u00eau c\u1ea7u v\u1ec1 nam ch\u00e2m gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 tr\u00e1nh \u0111o\u00e1n m\u00f2.<\/p>\n<h3>B\u01b0\u1edbc 2 \u0110\u00e1nh gi\u00e1 \u0110\u1ed9 m\u1ea1nh c\u1ee7a Nam ch\u00e2m v\u00e0 V\u1eadt li\u1ec7u<\/h3>\n<p>Xem x\u00e9t \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a nam ch\u00e2m, th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng x\u1ebfp h\u1ea1ng gauss ho\u1eb7c tesla, v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi ch\u1ee9c n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb. V\u00ed d\u1ee5, \u0111\u1ed9ng c\u01a1 nh\u1ecf g\u1ecdn th\u01b0\u1eddng c\u1ea7n nam ch\u00e2m neodymium m\u1ea1nh, trong khi ni\u00eam phong t\u1ee7 l\u1ea1nh c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi nam ch\u00e2m ferrite. Ngo\u00e0i ra, ch\u1ecdn v\u1eadt li\u1ec7u nam ch\u00e2m d\u1ef1a tr\u00ean n\u01a1i thi\u1ebft b\u1ecb s\u1ebd ho\u1ea1t \u0111\u1ed9ng\u2014xem x\u00e9t \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c \u0111\u1ed9 \u1ea9m.<\/p>\n<h3>B\u01b0\u1edbc 3 Xem x\u00e9t H\u00ecnh d\u1ea1ng v\u00e0 T\u00f9y ch\u1ec9nh<\/h3>\n<p>Nam ch\u00e2m c\u00f3 d\u1ea1ng ti\u00eau chu\u1ea9n nh\u01b0 \u0111\u0129a, kh\u1ed1i ho\u1eb7c v\u00f2ng, nh\u01b0ng m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb c\u1ea7n h\u00ecnh d\u1ea1ng t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o. NBAEM cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng c\u1ea7n \u0111o\u00e1n m\u00f2.<\/p>\n<h3>B\u01b0\u1edbc 4 \u0110\u00e1nh gi\u00e1 Ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 H\u1ed7 tr\u1ee3 c\u1ee7a Nh\u00e0 cung c\u1ea5p<\/h3>\n<p>Ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn nh\u01b0 NBAEM n\u1ed5i ti\u1ebfng v\u1edbi c\u00e1c ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 s\u1ea3n ph\u1ea9m \u0111\u00e1ng tin c\u1eady. Ki\u1ec3m tra xem h\u1ecd c\u00f3 cung c\u1ea5p h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, b\u1ea3o h\u00e0nh v\u00e0 giao h\u00e0ng nhanh ch\u00f3ng \u0111\u1ec3 tr\u00e1nh b\u1ea5t k\u1ef3 s\u1ef1 ch\u1eadm tr\u1ec5 ho\u1eb7c phi\u1ec1n to\u00e1i n\u00e0o v\u1ec1 sau.<\/p>\n<h3>B\u01b0\u1edbc 5 Th\u1eed nghi\u1ec7m v\u00e0 L\u1eafp \u0111\u1eb7t<\/h3>\n<p>Khi l\u1eafp \u0111\u1eb7t nam ch\u00e2m, tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn an to\u00e0n \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng ho\u1eb7c th\u01b0\u01a1ng t\u00edch. Sau khi l\u1eafp \u0111\u1eb7t, ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru trong th\u1eddi gian d\u00e0i.<\/p>\n<h2>Nh\u1eefng Sai l\u1ea7m Th\u01b0\u1eddng g\u1eb7p c\u1ea7n Tr\u00e1nh Khi Ch\u1ecdn Nam ch\u00e2m<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Magnet_Selection_Mistakes_to_Avoid_yT9ouIlaW.webp\" alt=\"Nh\u1eefng sai l\u1ea7m c\u1ea7n tr\u00e1nh khi ch\u1ecdn nam ch\u00e2m cho thi\u1ebft b\u1ecb\" \/><\/p>\n<p>Khi ch\u1ecdn nam ch\u00e2m cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, d\u1ec5 m\u1eafc ph\u1ea3i sai l\u1ea7m. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 sai l\u1ea7m ph\u1ed5 bi\u1ebfn b\u1ea1n mu\u1ed1n tr\u00e1nh:<\/p>\n<ul>\n<li><strong>Ch\u1ecdn nam ch\u00e2m ch\u1ec9 v\u00ec ch\u00fang r\u1ebb.<\/strong> Gi\u00e1 th\u1ea5p th\u01b0\u1eddng \u0111\u1ed3ng ngh\u0129a v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p ho\u1eb7c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch k\u00e9m, c\u00f3 th\u1ec3 khi\u1ebfn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng k\u00e9m ho\u1eb7c h\u1ecfng h\u00f3c.<\/li>\n<li><strong>B\u1ecf qua m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb.<\/strong> Nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c r\u1ea5t quan tr\u1ecdng. V\u00ed d\u1ee5, nam ch\u00e2m neodymium kh\u00f4ng \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n, v\u00e0 m\u1ed9t s\u1ed1 nam ch\u00e2m c\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 m\u1ea1nh n\u1ebfu qu\u00e1 n\u00f3ng.<\/li>\n<li><strong>S\u1eed d\u1ee5ng k\u00edch th\u01b0\u1edbc ho\u1eb7c h\u00ecnh d\u1ea1ng sai.<\/strong> N\u1ebfu nam ch\u00e2m kh\u00f4ng ph\u00f9 h\u1ee3p ho\u1eb7c kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf c\u1ee7a thi\u1ebft b\u1ecb, n\u00f3 s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 g\u00e2y h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn.<\/li>\n<li><strong>B\u1ecf qua nh\u00e0 cung c\u1ea5p.<\/strong> Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u1ec1u cung c\u1ea5p h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u1eefng ch\u1eafc ho\u1eb7c \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u1ee7a h\u1ecd. Ch\u1ecdn nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady v\u1edbi d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng t\u1ed1t l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1.<\/li>\n<\/ul>\n<p>Nh\u1eefng \u0111i\u1ec3m n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian, ti\u1ec1n b\u1ea1c v\u00e0 tr\u00e1nh phi\u1ec1n to\u00e1i trong khi \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru.<\/p>\n<h2>T\u1ea1i sao ch\u1ecdn NBAEM cho nhu c\u1ea7u nam ch\u00e2m c\u1ee7a b\u1ea1n<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c ch\u1ecdn nam ch\u00e2m cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, NBAEM n\u1ed5i b\u1eadt v\u1edbi chuy\u00ean m\u00f4n v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u t\u1eeb t\u00ednh ch\u1ea5t l\u01b0\u1ee3ng cao. D\u00f9 b\u1ea1n c\u1ea7n nam ch\u00e2m neodymium m\u1ea1nh cho \u0111\u1ed9ng c\u01a1 nh\u1ecf g\u1ecdn hay nam ch\u00e2m ferrite ti\u1ebft ki\u1ec7m chi ph\u00ed cho c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng l\u1edbn h\u01a1n, NBAEM cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u00e1ng tin c\u1eady \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/p>\n<p>\u0110i\u1ec1u l\u00e0m n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a NBAEM ch\u00ednh l\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c v\u1edbi y\u00eau c\u1ea7u c\u1ee7a thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n. Th\u00eam v\u00e0o \u0111\u00f3, m\u1ee9c gi\u00e1 c\u1ea1nh tranh c\u1ee7a h\u1ecd c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c nam ch\u00e2m b\u1ec1n b\u1ec9, hi\u1ec7u su\u1ea5t cao m\u00e0 kh\u00f4ng ph\u1ea3i v\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch. H\u01a1n n\u1eefa, NBAEM \u0111\u1ea3m b\u1ea3o giao h\u00e0ng nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady \u0111\u1ebfn t\u1eadn nh\u00e0 c\u1ee7a b\u1ea1n.<\/p>\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 tin t\u01b0\u1edfng v\u00e0o \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn c\u1ee7a NBAEM v\u00e0 d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng ph\u1ea3n h\u1ed3i nhanh \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u1ebfn l\u1eafp \u0111\u1eb7t. \u0110\u1ed1i v\u1edbi nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady hi\u1ec3u r\u00f5 th\u1ecb tr\u01b0\u1eddng thi\u1ebft b\u1ecb to\u00e0n c\u1ea7u, NBAEM l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n<p>Truy c\u1eadp trang web c\u1ee7a NBAEM \u0111\u1ec3 xem danh m\u1ee5c s\u1ea3n ph\u1ea9m chi ti\u1ebft ho\u1eb7c \u0111\u1eb7t l\u1ecbch t\u01b0 v\u1ea5n v\u00e0 t\u00ecm ra nam ch\u00e2m ph\u00f9 h\u1ee3p nh\u1ea5t cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u1ecdc c\u00e1ch ch\u1ecdn nam ch\u00e2m ph\u00f9 h\u1ee3p cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c m\u1eb9o t\u1eeb chuy\u00ean gia v\u1ec1 c\u00e1c lo\u1ea1i, c\u01b0\u1eddng \u0111\u1ed9, k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1eeb nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady NBAEM<\/p>","protected":false},"author":1,"featured_media":3266,"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-3267","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\/How_to_choose_the_right_magnet_for_your_appliances.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3267","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=3267"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3267\/revisions"}],"predecessor-version":[{"id":3268,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3267\/revisions\/3268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3266"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}