{"id":2798,"date":"2025-09-16T12:53:18","date_gmt":"2025-09-16T12:53:18","guid":{"rendered":"https:\/\/nbaem.com\/?p=2798"},"modified":"2025-09-19T07:05:16","modified_gmt":"2025-09-19T07:05:16","slug":"ndfeb-magnet-strength","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/ndfeb-magnet-strength\/","title":{"rendered":"\u0110\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB"},"content":{"rendered":"<p>N\u1ebfu b\u1ea1n t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec <strong>\u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB th\u1ef1c s\u1ef1 l\u00e0 g\u00ec<\/strong>\u00a0v\u00e0 t\u1ea1i sao ch\u00fang chi\u1ebfm \u01b0u th\u1ebf trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 cao, b\u1ea1n \u0111\u00e3 \u0111\u1ebfn \u0111\u00fang n\u01a1i. Hi\u1ec3u bi\u1ebft <strong>\u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/strong> l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng d\u00f9 b\u1ea1n l\u00e0 k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c, ng\u01b0\u1eddi \u0111am m\u00ea x\u00e2y d\u1ef1ng d\u1ee5ng c\u1ee5 m\u1ea1nh m\u1ebd, hay ng\u01b0\u1eddi mua ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m \u0111\u00e1ng tin c\u1eady. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u00fap lo\u1ea1i b\u1ecf c\u00e1c thu\u1eadt ng\u1eef ph\u1ee9c t\u1ea1p \u0111\u1ec3 gi\u1ea3i th\u00edch \u0111i\u1ec1u l\u00e0m cho nh\u1eefng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm n\u00e0y n\u1ed5i b\u1eadt\u2014t\u1eeb c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t ch\u00ednh \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 th\u1ef1c t\u1ebf \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng c\u1ee7a ch\u00fang.<br \/>\nS\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 nh\u1eefng b\u00ed m\u1eadt \u0111\u1eb1ng sau <strong>\u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/strong> v\u00e0 t\u00ecm hi\u1ec3u t\u1ea1i sao NBAEM l\u00e0 nh\u00e0 cung c\u1ea5p h\u00e0ng \u0111\u1ea7u cho c\u00e1c nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam? H\u00e3y b\u1eaft \u0111\u1ea7u n\u00e0o.<\/p>\n<h2>\u0110\u1ed9 m\u1ea1nh c\u1ee7a Nam ch\u00e2m NdFeB l\u00e0 g\u00ec<\/h2>\n<p>\u0110\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m neodymium- s\u1eaft-boron, l\u00e0 m\u1ed9t trong nh\u1eefng nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh nh\u1ea5t hi\u1ec7n c\u00f3. \u0110\u1ed9 m\u1ea1nh n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng ch\u00ednh m\u00f4 t\u1ea3 kh\u1ea3 n\u0103ng t\u1ea1o ra v\u00e0 duy tr\u00ec tr\u01b0\u1eddng t\u1eeb c\u1ee7a nam ch\u00e2m.<\/p>\n<h3>C\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb ch\u00ednh x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 c\u1ea3m t\u1eeb (B)<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ee9c \u0111\u1ed9 t\u1eadp trung c\u1ee7a c\u00e1c d\u00f2ng l\u1ef1c t\u1eeb, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng Gauss ho\u1eb7c Tesla. M\u1eadt \u0111\u1ed9 flux cao h\u01a1n c\u00f3 ngh\u0129a l\u00e0 tr\u01b0\u1eddng t\u1eeb c\u1ee7a nam ch\u00e2m m\u1ea1nh h\u01a1n.<\/li>\n<li><strong>S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax)<\/strong>: \u0110\u01b0\u1ee3c \u0111o b\u1eb1ng Mega-Gauss Oersteds (MGOe), BHmax ch\u1ec9 ra n\u0103ng l\u01b0\u1ee3ng t\u1eeb t\u1ed1i \u0111a l\u01b0u tr\u1eef trong nam ch\u00e2m. \u0110\u00e2y l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u1ed5ng th\u1ec3 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m. Nam ch\u00e2m NdFeB th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb <strong>33 \u0111\u1ebfn 55 MGOe<\/strong>, v\u1edbi gi\u00e1 tr\u1ecb cao h\u01a1n th\u1ec3 hi\u1ec7n nam ch\u00e2m m\u1ea1nh h\u01a1n.<\/li>\n<li><strong>Kh\u00e1ng t\u1eeb (Hc)<\/strong>: \u0110\u00e2y \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb c\u1ee7a nam ch\u00e2m. Kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb cao c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m c\u00f3 th\u1ec3 duy tr\u00ec s\u1ee9c m\u1ea1nh ngay c\u1ea3 khi b\u1ecb ti\u1ebfp x\u00fac v\u1edbi c\u00e1c tr\u01b0\u1eddng t\u1eeb \u0111\u1ed1i l\u1eadp ho\u1eb7c c\u00e1c y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i.<\/li>\n<li><strong>L\u01b0u t\u1eeb d\u01b0 (Br)<\/strong>: C\u0169ng g\u1ecdi l\u00e0 t\u1eeb d\u01b0, remanence l\u00e0 tr\u01b0\u1eddng t\u1eeb c\u00f2n l\u1ea1i c\u1ee7a nam ch\u00e2m sau khi \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a ho\u00e0n to\u00e0n. Nam ch\u00e2m NdFeB th\u01b0\u1eddng c\u00f3 remanence cao, g\u00f3p ph\u1ea7n v\u00e0o kh\u1ea3 n\u0103ng t\u1eeb l\u00e2u d\u00e0i m\u1ea1nh m\u1ebd c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n<h3>C\u00e1c gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh cho nam ch\u00e2m NdFeB<\/h3>\n<table>\n<thead>\n<tr>\n<th>Thu\u1ed9c t\u00ednh<\/th>\n<th>Kho\u1ea3ng gi\u00e1 \u0111i\u1ec3n h\u00ecnh<\/th>\n<th>\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax)<\/td>\n<td>33 \u2013 55<\/td>\n<td>MGOe (Mega-Gauss Oersted)<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00e1ng t\u1eeb (Hc)<\/td>\n<td>900 \u2013 2000<\/td>\n<td>kA\/m<\/td>\n<\/tr>\n<tr>\n<td>L\u01b0u t\u1eeb d\u01b0 (Br)<\/td>\n<td>1.0 \u2013 1.4<\/td>\n<td>Tesla (T) ho\u1eb7c 10.000 \u2013 14.000 Gauss<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y gi\u00fap l\u00e0m r\u00f5 l\u00fd do t\u1ea1i sao nam ch\u00e2m NdFeB v\u01b0\u1ee3t tr\u1ed9i h\u01a1n nhi\u1ec1u lo\u1ea1i kh\u00e1c v\u1ec1 \u0111\u1ed9 m\u1ea1nh v\u00e0 \u0111\u1ed9 tin c\u1eady. S\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa BHmax cao, kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb m\u1ea1nh v\u00e0 remanence cao khi\u1ebfn nam ch\u00e2m NdFeB tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean khi c\u1ea7n l\u1ef1c t\u1eeb t\u1ed1i \u0111a. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn chi ti\u1ebft h\u01a1n v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 t\u1eeb v\u0129nh c\u1eedu, h\u00e3y xem <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-permanent-magnetism%ef%bc%9f\/\">T\u1eeb v\u0129nh c\u1eedu l\u00e0 g\u00ec<\/a>.<\/span><\/strong><\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/NdFeB_Magnet_Strength_Factors_Analysis_hCm1FLN9Y.webp\" alt=\"Ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB\" width=\"549\" height=\"355\" \/><\/p>\n<p>M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB, khi\u1ebfn vi\u1ec7c hi\u1ec3u ch\u00fang tr\u1edf n\u00ean quan tr\u1ecdng khi ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<h3>Thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n v\u00e0 c\u1ea5p \u0111\u1ed9 v\u1eadt li\u1ec7u<\/h3>\n<p>Nam ch\u00e2m NdFeB c\u00f3 nhi\u1ec1u c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau nh\u01b0 N35, N42, N52, v.v. M\u1ed7i c\u1ea5p \u0111\u1ed9 th\u1ec3 hi\u1ec7n m\u1ed9t s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax) c\u1ee5 th\u1ec3, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m. C\u00e1c c\u1ea5p cao h\u01a1n nh\u01b0 N52 c\u00f3 m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng m\u1ea1nh h\u01a1n, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao.<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng nam ch\u00e2m<\/h3>\n<p>K\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a nam ch\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1eeb t\u1ed5ng th\u1ec3 c\u1ee7a n\u00f3. Nam ch\u00e2m l\u1edbn h\u01a1n th\u01b0\u1eddng gi\u1eef \u0111\u01b0\u1ee3c nhi\u1ec1u flux t\u1eeb h\u01a1n, v\u00e0 c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1eadp trung c\u00e1c d\u00f2ng t\u1eeb, nh\u01b0 v\u00f2ng ho\u1eb7c kh\u1ed1i, c\u00f3 th\u1ec3 cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb t\u1ed1t h\u01a1n t\u00f9y theo m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng.<\/p>\n<h3>T\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 v\u00e0 qu\u00e1 tr\u00ecnh m\u1ea5t t\u1eeb t\u00ednh<\/h3>\n<p>Nam ch\u00e2m NdFeB c\u00f3 th\u1ec3 m\u1ea5t \u0111i \u0111\u1ed9 m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Nhi\u1ec7t \u0111\u1ed9 Curie (th\u01b0\u1eddng t\u1eeb 310\u2013400\u00b0C) \u0111\u00e1nh d\u1ea5u \u0111i\u1ec3m nam ch\u00e2m m\u1ea5t ho\u00e0n to\u00e0n t\u1eeb t\u00ednh. Ngay c\u1ea3 d\u01b0\u1edbi m\u1ee9c n\u00e0y, nhi\u1ec7t c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t t\u1eeb m\u1ed9t ph\u1ea7n, \u0111\u1eb7c bi\u1ec7t n\u1ebfu kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb c\u1ee7a nam ch\u00e2m kh\u00f4ng \u0111\u1ee7 cao. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t ho\u1eb7c bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n<h3>Ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t v\u00e0 c\u1ea5u tr\u00fac vi m\u00f4<\/h3>\n<p>C\u00e1ch ch\u1ebf t\u1ea1o nam ch\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a n\u00f3. Ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n c\u1ea5u tr\u00fac vi m\u00f4 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t d\u1eabn \u0111\u1ebfn c\u00e1c nam ch\u00e2m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb v\u00e0 remanence c\u1ea3i thi\u1ec7n, gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ea1nh l\u00e2u h\u01a1n v\u00e0 ch\u1ed1ng m\u1ea5t t\u1eeb.<\/p>\n<h3>L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>Nam ch\u00e2m NdFeB d\u1ec5 b\u1ecb \u0103n m\u00f2n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang theo th\u1eddi gian. L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 nh\u01b0 nickel, epoxy ho\u1eb7c k\u1ebdm gi\u00fap b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi \u0111\u1ed9 \u1ea9m v\u00e0 h\u00f3a ch\u1ea5t, gi\u00fap duy tr\u00ec \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a ch\u00fang, \u0111\u1eb7c bi\u1ec7t l\u00e0 ngo\u00e0i tr\u1eddi ho\u1eb7c trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y gi\u00fap l\u1ef1a ch\u1ecdn \u0111\u00fang c\u1ea5p \u0111\u1ed9 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nam ch\u00e2m NdFeB c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1ch c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau so s\u00e1nh, h\u00e3y xem <a href=\"https:\/\/nbaem.com\/vi\/samarium-cobalt-magnet-data-sheet\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">\u00a0\u0110\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m Smco so v\u1edbi NdFeB<\/span><\/strong><\/a> h\u01b0\u1edbng d\u1eabn.<\/p>\n<h2>C\u00e1ch \u0111o \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/h2>\n<p>\u0110o \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB li\u00ean quan \u0111\u1ebfn c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn trong ng\u00e0nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n. C\u00e1c ph\u00e9p \u0111o ch\u00ednh t\u1eadp trung v\u00e0o m\u1eadt \u0111\u1ed9 flux t\u1eeb, s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng, v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u1eeb, gi\u00fap x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a nam ch\u00e2m.<\/p>\n<h3>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra ph\u1ed5 bi\u1ebfn v\u00e0 ti\u00eau chu\u1ea9n<\/h3>\n<ul>\n<li><strong>M\u1eadt \u0111\u1ed9 flux t\u1eeb (Gauss ho\u1eb7c Tesla):<\/strong> \u0110o tr\u01b0\u1eddng t\u1eeb sinh ra tr\u00ean b\u1ec1 m\u1eb7t nam ch\u00e2m.<\/li>\n<li><strong>S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax, \u0111o b\u1eb1ng MGOe):<\/strong> Ph\u1ea3n \u00e1nh n\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef c\u1ee7a nam ch\u00e2m\u2014gi\u00e1 tr\u1ecb c\u00e0ng cao, nam ch\u00e2m c\u00e0ng m\u1ea1nh.<\/li>\n<li><strong>\u0110\u1ed9 c\u1ee9ng t\u1eeb:<\/strong> Ch\u1ec9 ra kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb do tr\u01b0\u1eddng ngo\u00e0i ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<\/ul>\n<p>C\u00e1c ph\u00e9p th\u1eed n\u00e0y tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 ASTM v\u00e0 ISO m\u00e0 nhi\u1ec1u nh\u00e0 cung c\u1ea5p \u00e1p d\u1ee5ng \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady.<\/p>\n<h3>T\u1ed5ng quan v\u1ec1 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng<\/h3>\n<ul>\n<li><strong>M\u00e1y \u0111o Gauss:<\/strong> D\u00f9ng \u0111\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp m\u1eadt \u0111\u1ed9 flux t\u1eeb, th\u01b0\u1eddng ph\u00f9 h\u1ee3p cho ki\u1ec3m tra b\u1ec1 m\u1eb7t.<\/li>\n<li><strong>M\u00e1y \u0111o t\u1eeb:<\/strong> C\u00e1c c\u00f4ng c\u1ee5 ti\u00ean ti\u1ebfn h\u01a1n c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u1ed5ng th\u1ec3 bao g\u1ed3m BHmax v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u1eeb.<\/li>\n<li><strong>M\u00e1y \u0111o flux:<\/strong> D\u00f9ng \u0111\u1ec3 \u0111o t\u1ed5ng flux t\u1eeb, cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng th\u1ec3 v\u1ec1 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m.<\/li>\n<\/ul>\n<h3>Di\u1ec5n gi\u1ea3i k\u1ebft qu\u1ea3 ki\u1ec3m tra<\/h3>\n<p>Khi b\u1ea1n nh\u1eadn d\u1eef li\u1ec7u t\u1eeb c\u00e1c ph\u00e9p th\u1eed, b\u1ea1n s\u1ebd th\u1ea5y c\u00e1c s\u1ed1 nh\u01b0:<\/p>\n<ul>\n<li>M\u1eadt \u0111\u1ed9 flux trong <strong>kA\/m<\/strong> or <strong>Gauss<\/strong> (1 Tesla = 10.000 Gauss)<\/li>\n<li>S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng trong <strong>MGOe (Mega Gauss Oersted)<\/strong> \u2014 ph\u1ea1m vi nam ch\u00e2m NdFeB \u0111i\u1ec3n h\u00ecnh t\u1eeb 30 \u0111\u1ebfn 52 MGOe.<\/li>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb trong <strong>kA\/m<\/strong> cho b\u1ea1n bi\u1ebft nam ch\u00e2m gi\u1eef \u0111\u01b0\u1ee3c bao l\u00e2u d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n<p>Trong s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y, BHmax cao h\u01a1n c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m m\u1ea1nh h\u01a1n, trong khi kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb cao h\u01a1n \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eaft khe. Bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y gi\u00fap ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n, d\u00f9 l\u00e0 cho \u0111i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1 hay \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>\n<h2>\u0110\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB v\u00e0 c\u1ea5p \u0111\u1ed9<\/h2>\n<p>Nam ch\u00e2m NdFeB c\u00f3 nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau ch\u1ee7 y\u1ebfu v\u1ec1 \u0111\u1ed9 m\u1ea1nh t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t. C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn b\u1ea1n s\u1ebd nghe th\u1ea5y bao g\u1ed3m N35, N42 v\u00e0 N52. S\u1ed1 sau ch\u1eef \u201cN\u201d g\u1ea7n nh\u01b0 bi\u1ec3u th\u1ecb n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax), \u0111o l\u01b0\u1eddng s\u1ee9c m\u1ea1nh t\u1ed5ng th\u1ec3 c\u1ee7a nam ch\u00e2m. V\u00ed d\u1ee5, nam ch\u00e2m N35 c\u00f3 BHmax kho\u1ea3ng 35 MGOe, trong khi N52 c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 52 MGOe, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng lo\u1ea1i NdFeB m\u1ea1nh nh\u1ea5t hi\u1ec7n c\u00f3.<\/p>\n<p>Khi ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n, h\u00e3y xem x\u00e9t:<\/p>\n<ul>\n<li><strong>Nhu c\u1ea7u v\u1ec1 \u0111\u1ed9 m\u1ea1nh<\/strong>: C\u00e1c lo\u1ea1i cao h\u01a1n nh\u01b0 N50 ho\u1eb7c N52 ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c m\u1ee5c \u0111\u00edch nh\u1ecf g\u1ecdn, hi\u1ec7u su\u1ea5t cao, n\u01a1i \u0111\u1ed9 m\u1ea1nh t\u1ed1i \u0111a l\u00e0 c\u1ea7n thi\u1ebft.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/strong>: M\u1ed9t s\u1ed1 lo\u1ea1i cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb t\u1ed1t h\u01a1n, ngh\u0129a l\u00e0 ch\u00fang ch\u1ed1ng m\u1ea5t t\u1eeb t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n.<\/li>\n<li><strong>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/strong>: C\u00e1c lo\u1ea1i th\u1ea5p h\u01a1n nh\u01b0 N35 ho\u1eb7c N38 cung c\u1ea5p \u0111\u1ed9 m\u1ea1nh \u1ed5n \u0111\u1ecbnh v\u1edbi gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n, ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ee5c \u0111\u00edch \u00edt \u0111\u00f2i h\u1ecfi h\u01a1n.<\/li>\n<\/ul>\n<p>So s\u00e1nh c\u00e1c lo\u1ea1i gi\u00fap t\u00ecm ra \u0111i\u1ec3m c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t v\u00e0 ng\u00e2n s\u00e1ch. V\u00ed d\u1ee5, N42 cung c\u1ea5p m\u1ee9c \u0111\u1ed9 m\u1ea1nh r\u00f5 r\u1ec7t h\u01a1n N35, v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t kh\u00e1 t\u1ed1t cho h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed ho\u1eb7c \u00f4 t\u00f4. Trong khi \u0111\u00f3, c\u00e1c lo\u1ea1i cao c\u1ea5p nh\u01b0 N48 v\u00e0 N52 l\u00fd t\u01b0\u1edfng cho \u0111\u1ed9ng c\u01a1 ho\u1eb7c thi\u1ebft b\u1ecb c\u1ea7n c\u00f4ng su\u1ea5t t\u1ed1i \u0111a trong k\u00edch th\u01b0\u1edbc nh\u1ecf.<\/p>\n<p>Trong :<\/p>\n<table>\n<thead>\n<tr>\n<th>C\u1ea5p \u0111\u1ed9<\/th>\n<th>N\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (MGOe)<\/th>\n<th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00fd t\u01b0\u1edfng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>N35<\/td>\n<td>35<\/td>\n<td>C\u00f4ng nghi\u1ec7p c\u01a1 b\u1ea3n, s\u1eed d\u1ee5ng chung<\/td>\n<\/tr>\n<tr>\n<td>N42<\/td>\n<td>42<\/td>\n<td>\u0110i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1 nh\u1ecf<\/td>\n<\/tr>\n<tr>\n<td>N48<\/td>\n<td>48<\/td>\n<td>Hi\u1ec7u su\u1ea5t cao h\u01a1n, robot<\/td>\n<\/tr>\n<tr>\n<td>N50<\/td>\n<td>50<\/td>\n<td>\u0110\u1ed9ng c\u01a1 cao c\u1ea5p, thi\u1ebft b\u1ecb y t\u1ebf<\/td>\n<\/tr>\n<tr>\n<td>N52<\/td>\n<td>52<\/td>\n<td>Nam ch\u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao nh\u1ecf g\u1ecdn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ch\u1ecdn lo\u1ea1i nam ch\u00e2m NdFeB ph\u00f9 h\u1ee3p c\u00f3 ngh\u0129a l\u00e0 c\u00e2n b\u1eb1ng gi\u1eefa y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 m\u1ea1nh, gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 v\u00e0 chi ph\u00ed\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t trong c\u00e1c d\u1ef1 \u00e1n ho\u1eb7c s\u1ea3n ph\u1ea9m t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2>So s\u00e1nh \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh, nam ch\u00e2m NdFeB n\u1ed5i b\u1eadt l\u00e0 m\u1ea1nh nh\u1ea5t trong s\u1ed1 c\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm ph\u1ed5 bi\u1ebfn. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ch\u00fang so s\u00e1nh v\u1edbi c\u00e1c lo\u1ea1i kh\u00e1c:<\/p>\n<h3>NdFeB so v\u1edbi Samarium Cobalt (SmCo)<\/h3>\n<ul>\n<li><strong>M\u1ee9c \u0111\u1ed9 m\u1ea1nh<\/strong>: Nam ch\u00e2m NdFeB th\u01b0\u1eddng cung c\u1ea5p s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a cao h\u01a1n (l\u00ean \u0111\u1ebfn 52 MGOe) so v\u1edbi SmCo (kho\u1ea3ng 30 MGOe). \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m NdFeB m\u1ea1nh h\u01a1n cho c\u00f9ng k\u00edch th\u01b0\u1edbc.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>: Nam ch\u00e2m SmCo v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng m\u1ea5t t\u1eeb t\u1ed1t h\u01a1n so v\u1edbi NdFeB. Nam ch\u00e2m NdFeB c\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 m\u1ea1nh tr\u00ean 150\u2013200\u00b0C tr\u1eeb khi \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i \u0111\u1eb7c bi\u1ec7t.<\/li>\n<li><strong>Gi\u00e1 th\u00e0nh<\/strong>: Nam ch\u00e2m NdFeB th\u01b0\u1eddng r\u1ebb h\u01a1n, khi\u1ebfn ch\u00fang ph\u1ed5 bi\u1ebfn trong s\u1ea3n xu\u1ea5t quy m\u00f4 l\u1edbn.<\/li>\n<\/ul>\n<h3>NdFeB so v\u1edbi Alnico<\/h3>\n<ul>\n<li><strong>M\u1ee9c \u0111\u1ed9 m\u1ea1nh<\/strong>: Nam ch\u00e2m NdFeB c\u00f3 \u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng cao h\u01a1n nhi\u1ec1u so v\u1edbi Alnico, v\u1ed1n c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb v\u00e0 s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a th\u1ea5p h\u01a1n.<\/li>\n<li><strong>\u0110\u1ed9 b\u1ec1n<\/strong>: Nam ch\u00e2m Alnico c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n nh\u01b0ng c\u1ed3ng k\u1ec1nh h\u01a1n so v\u1edbi NdFeB.<\/li>\n<li><strong>C\u00e1c \u1ee9ng d\u1ee5ng<\/strong>: Alnico th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn cho c\u1ea3m bi\u1ebfn ho\u1eb7c loa n\u01a1i nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh quan tr\u1ecdng h\u01a1n \u0111\u1ed9 m\u1ea1nh nguy\u00ean th\u1ee7y.<\/li>\n<\/ul>\n<h3>NdFeB so v\u1edbi nam ch\u00e2m Ferrite (g\u1ed1m s\u1ee9)<\/h3>\n<ul>\n<li><strong>M\u1ee9c \u0111\u1ed9 m\u1ea1nh<\/strong>: Nam ch\u00e2m Ferrite y\u1ebfu nh\u1ea5t v\u1ec1 \u0111\u1ed9 m\u1ea1nh t\u1eeb so v\u1edbi NdFeB, v\u1edbi s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a kho\u1ea3ng 3\u20134 MGOe, th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi ph\u1ea1m vi c\u1ee7a NdFeB.<\/li>\n<li><strong>Chi ph\u00ed v\u00e0 ch\u1ed1ng \u0103n m\u00f2n<\/strong>: Nam ch\u00e2m Ferrite c\u00f3 chi ph\u00ed th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t n\u01a1i \u0111\u1ed9 m\u1ea1nh kh\u00f4ng qu\u00e1 quan tr\u1ecdng.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc<\/strong>: \u0110\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 m\u1ea1nh c\u1ee7a m\u1ed9t nam ch\u00e2m NdFeB nh\u1ecf, nam ch\u00e2m Ferrite ph\u1ea3i l\u1edbn h\u01a1n nhi\u1ec1u.<\/li>\n<\/ul>\n<h3>\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n<ul>\n<li><strong>nam ch\u00e2m NdFeB<\/strong> cung c\u1ea5p \u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng cao nh\u1ea5t, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ecf g\u1ecdn, hi\u1ec7u su\u1ea5t cao nh\u01b0 \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n t\u1eed.<\/li>\n<li><strong>nam ch\u00e2m SmCo<\/strong> cung c\u1ea5p hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t cao ho\u1eb7c ho\u00e1 ch\u1ea5t kh\u1eafc nghi\u1ec7t nh\u01b0ng v\u1edbi gi\u00e1 cao h\u01a1n.<\/li>\n<li><strong>Nam ch\u00e2m Alnico<\/strong> \u0111em l\u1ea1i \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t tuy\u1ec7t v\u1eddi nh\u01b0ng v\u1edbi c\u00f4ng su\u1ea5t t\u1eeb th\u1ea5p h\u01a1n.<\/li>\n<li><strong>Nam ch\u00e2m ferrite<\/strong> ph\u00f9 h\u1ee3p ng\u00e2n s\u00e1ch v\u00e0 ch\u1ed1ng \u0103n m\u00f2n nh\u01b0ng y\u1ebfu h\u01a1n nhi\u1ec1u so v\u1edbi NdFeB.<\/li>\n<\/ul>\n<p>L\u1ef1a ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 m\u1ea1nh, chi ph\u00ed, m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh v\u00e0 y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n \u0111\u1ed9 m\u1ea1nh, nam ch\u00e2m NdFeB th\u01b0\u1eddng d\u1eabn \u0111\u1ea7u.<\/p>\n<h2>C\u00e1c \u1ee9ng d\u1ee5ng t\u1eadn d\u1ee5ng \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/NdFeB_Magnets_Application_Industries_tFIwCaHP6.webp\" alt=\"Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u1ee9ng d\u1ee5ng nam ch\u00e2m NdFeB\" \/><\/p>\n<p>\u1ea2nh t\u1eeb <a href=\"https:\/\/www.stanfordmagnets.com\/the-development-of-the-ndfeb-magnet-industry.html\" target=\"_blank\" rel=\"noopener\">Nam ch\u00e2m Stanford<\/a><\/p>\n<p>Nam magnets NdFeB r\u1ea5t ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u1edd v\u00e0o s\u1ee9c m\u1ea1nh v\u00e0 \u0111\u1ed9 tin c\u1eady v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a ch\u00fang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 n\u01a1i s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh c\u1ee7a ch\u00fang th\u1ef1c s\u1ef1 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t:<\/p>\n<ul>\n<li><strong>\u0110i\u1ec7n t\u1eed v\u00e0 \u0110\u1ed9ng c\u01a1 vi m\u00f4:<\/strong> C\u00e1c thi\u1ebft b\u1ecb nh\u1ecf nh\u01b0 tai nghe, \u1ed5 c\u1ee9ng v\u00e0 drone s\u1eed d\u1ee5ng nam magnets NdFeB \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t hi\u1ec7u qu\u1ea3, nh\u1ecf g\u1ecdn. M\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng m\u1ea1nh m\u1ebd c\u1ee7a ch\u00fang c\u1ea3i thi\u1ec7n \u0111\u1ed9 ph\u1ea3n h\u1ed3i c\u1ee7a \u0111\u1ed9ng c\u01a1 v\u00e0 c\u00f4ng su\u1ea5t trong kh\u00f4ng gian ch\u1eadt h\u1eb9p.<\/li>\n<li><strong>Gi\u00f3 v\u00e0 N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o:<\/strong> Nam magnets NdFeB l\u00e0 th\u00e0nh ph\u1ea7n ch\u1ee7 ch\u1ed1t trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n turbine gi\u00f3. S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a cao c\u1ee7a ch\u00fang c\u00f3 ngh\u0129a l\u00e0 turbine c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn nh\u1ecf h\u01a1n, nh\u1eb9 h\u01a1n, n\u00e2ng cao hi\u1ec7u qu\u1ea3 t\u1ed5ng th\u1ec3.<\/li>\n<li><strong>Xe \u0111i\u1ec7n \u00f4 t\u00f4:<\/strong> \u0110\u1ed9ng c\u01a1 EV d\u1ef1a v\u00e0o l\u1ef1c t\u1eeb m\u1ea1nh c\u1ee7a nam magnets NdFeB \u0111\u1ec3 \u0111\u1ea1t m\u00f4-men xo\u1eafn cao v\u00e0 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng t\u1ed1t h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn xe nh\u1eb9 h\u01a1n v\u1edbi ph\u1ea1m vi l\u00e1i xe d\u00e0i h\u01a1n.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb y t\u1ebf:<\/strong> C\u00e1c thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c nh\u01b0 m\u00e1y MRI v\u00e0 m\u00e1y tr\u1ee3 th\u00ednh s\u1eed d\u1ee5ng nam magnets NdFeB \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 s\u1ee9c m\u1ea1nh, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/li>\n<li><strong>M\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p v\u00e0 Robot:<\/strong> T\u1eeb c\u00e1nh tay robot \u0111\u1ebfn b\u0103ng chuy\u1ec1n, nh\u1eefng nam magnets n\u00e0y cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m so\u00e1t c\u1ea7n thi\u1ebft. Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb c\u1ee7a ch\u00fang h\u1ed7 tr\u1ee3 \u0111\u1ed9 b\u1ec1n trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ul>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng nam magnets NdFeB trong c\u00e1c l\u0129nh v\u1ef1c n\u00e0y mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n, k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n v\u00e0 thi\u1ebft b\u1ecb b\u1ec1n l\u00e2u h\u01a1n\u2014nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam t\u1eadp trung v\u00e0o \u0111\u1ed5i m\u1edbi v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>Mua nam ch\u00e2m NdFeB c\u01b0\u1eddng \u0111\u1ed9 cao t\u1eeb Trung Qu\u1ed1c T\u1ea1i sao ch\u1ecdn NBAEM<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c t\u00ecm ngu\u1ed3n nam magnets NdFeB c\u00f3 \u0111\u1ed9 m\u1ea1nh cao t\u1eeb Trung Qu\u1ed1c, NBAEM n\u1ed5i b\u1eadt v\u00ec m\u1ed9t s\u1ed1 l\u00fd do. Chuy\u00ean m\u00f4n c\u1ee7a h\u1ecd trong l\u0129nh v\u1ef1c nam magnets \u0111\u1ea5t hi\u1ebfm \u0111\u1ea3m b\u1ea3o b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c nam magnets \u0111\u00e1ng tin c\u1eady, m\u1ea1nh m\u1ebd ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n<h3>Chuy\u00ean m\u00f4n v\u00e0 \u0110\u1ea3m b\u1ea3o Ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n<p>NBAEM c\u00f3 nhi\u1ec1u n\u0103m kinh nghi\u1ec7m trong s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p nam magnets NdFeB v\u1edbi hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh \u1ed5n \u0111\u1ecbnh. M\u1ed7i l\u00f4 h\u00e0ng \u0111\u1ec1u tr\u1ea3i qua ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u00f3 n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a cao (BHmax), \u0111\u1ed9 c\u1ee9ng t\u1eeb v\u00e0 gi\u00e1 tr\u1ecb t\u1eeb d\u01b0 m\u00e0 kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam mong \u0111\u1ee3i.<\/p>\n<h3>T\u00f9y ch\u1ec9nh v\u00e0 L\u1ef1a ch\u1ecdn X\u1ebfp h\u1ea1ng<\/h3>\n<p>D\u00f9 b\u1ea1n c\u1ea7n N35, N42, N52 hay c\u00e1c lo\u1ea1i \u0111\u1eb7c bi\u1ec7t, NBAEM cung c\u1ea5p nhi\u1ec1u l\u1ef1a ch\u1ecdn. H\u1ecd c\u0169ng x\u1eed l\u00fd c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n, t\u1eeb \u0111i\u1ec7n t\u1eed \u0111\u1ebfn \u00f4 t\u00f4.<\/p>\n<h3>Ch\u1ee9ng nh\u1eadn v\u00e0 Tu\u00e2n th\u1ee7<\/h3>\n<p>S\u1ea3n ph\u1ea9m c\u1ee7a NBAEM tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0 RoHS v\u00e0 REACH, \u0111\u1ea3m b\u1ea3o nam magnets an to\u00e0n, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng ph\u00f9 h\u1ee3p cho th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<h3>H\u1ed7 tr\u1ee3 \u0111\u1ecba ph\u01b0\u01a1ng v\u1edbi ph\u1ea1m vi to\u00e0n c\u1ea7u<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>Chi ti\u1ebft<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H\u1ed7 Tr\u1ee3 Kh\u00e1ch H\u00e0ng<\/td>\n<td>D\u1ecbch v\u1ee5 ph\u1ea3n h\u1ed3i nhanh d\u1ef1a t\u1ea1i Vi\u1ec7t Nam<\/td>\n<\/tr>\n<tr>\n<td>V\u1eadn chuy\u1ec3n<\/td>\n<td>H\u1ec7 th\u1ed1ng logistics to\u00e0n c\u1ea7u \u0111\u00e1ng tin c\u1eady<\/td>\n<\/tr>\n<tr>\n<td>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/td>\n<td>H\u01b0\u1edbng d\u1eabn chuy\u00ean gia v\u1ec1 c\u00e1c lo\u1ea1i nam magnets v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>NBAEM k\u1ebft h\u1ee3p s\u1ee9c m\u1ea1nh s\u1ea3n xu\u1ea5t to\u00e0n c\u1ea7u v\u1edbi h\u1ed7 tr\u1ee3 \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ec3 l\u00e0m cho vi\u1ec7c mua nam ch\u00e2m NdFeB c\u00f3 \u0111\u1ed9 b\u1ec1n cao tr\u1edf n\u00ean d\u1ec5 d\u00e0ng.<\/p>\n<h2>M\u1eb9o b\u1ea3o tr\u00ec \u0111\u1ec3 gi\u1eef g\u00ecn s\u1ee9c m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/h2>\n<p>Gi\u1eef cho nam ch\u00e2m NdFeB c\u1ee7a b\u1ea1n m\u1ea1nh m\u1ebd theo th\u1eddi gian c\u00f3 ngh\u0129a l\u00e0 ph\u1ea3i x\u1eed l\u00fd ch\u00fang \u0111\u00fang c\u00e1ch. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch b\u1ea1n c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh c\u1ee7a ch\u00fang:<\/p>\n<ul>\n<li>\n<h3>L\u01b0u tr\u1eef v\u00e0 x\u1eed l\u00fd \u0111\u00fang c\u00e1ch<\/h3>\n<p>L\u01b0u tr\u1eef nam ch\u00e2m \u1edf n\u01a1i kh\u00f4 r\u00e1o, m\u00e1t m\u1ebb, tr\u00e1nh xa c\u00e1c v\u1eadt kim lo\u1ea1i \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng t\u00ecnh c\u1edd ho\u1eb7c m\u1ea5t t\u1eeb t\u00ednh. S\u1eed d\u1ee5ng mi\u1ebfng \u0111\u1ec7m ho\u1eb7c gi\u1eef ch\u00fang c\u00e1ch bi\u1ec7t trong bao b\u00ec \u0111\u1ec3 tr\u00e1nh b\u1ecb s\u1ee9t m\u1ebb ho\u1eb7c n\u1ee9t v\u1ee1. X\u1eed l\u00fd c\u1ea9n th\u1eadn v\u00ec nam ch\u00e2m NdFeB c\u00f3 th\u1ec3 d\u1ec5 v\u1ee1.<\/li>\n<li>\n<h3>Tr\u00e1nh nhi\u1ec7t \u0111\u1ed9 cao<\/h3>\n<p>Nhi\u1ec7t \u0111\u1ed9 l\u00e0 k\u1ebb th\u00f9 ch\u00ednh c\u1ee7a nam ch\u00e2m NdFeB. Ti\u1ebfp x\u00fac \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean m\u1ee9c t\u1ed1i \u0111a ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang g\u00e2y m\u1ea5t t\u1eeb t\u00ednh ho\u1eb7c h\u01b0 h\u1ecfng v\u0129nh vi\u1ec5n. Gi\u1eef ch\u00fang d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 Curie c\u1ee7a ch\u00fang v\u00e0 xem x\u00e9t <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/ms\/which-magnets-can-withstand-high-temperatures\/\">\u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB<\/a><\/span><\/strong> \u0111\u1ec3 bi\u1ebft th\u00eam.<\/li>\n<li>\n<h3>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/h3>\n<p>Nam ch\u00e2m NdFeB d\u1ec5 b\u1ecb g\u1ec9 s\u00e9t. \u00c1p d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 nh\u01b0 nickel, epoxy ho\u1eb7c v\u00e0ng gi\u00fap t\u1ea1o ra h\u00e0ng r\u00e0o ch\u1ed1ng \u1ea9m v\u00e0 h\u00f3a ch\u1ea5t. Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u00e0 l\u00e0m s\u1ea1ch \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 t\u00edch t\u1ee5 c\u00f3 th\u1ec3 l\u00e0m y\u1ebfu nam ch\u00e2m.<\/li>\n<li>\n<h3>S\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 khi c\u1ea7n thi\u1ebft<\/h3>\n<p>L\u1edbp ph\u1ee7 kh\u00f4ng ch\u1ec9 b\u1ea3o v\u1ec7 kh\u1ecfi \u0103n m\u00f2n \u2014 ch\u00fang c\u00f2n n\u00e2ng cao \u0111\u1ed9 b\u1ec1n cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. H\u00e3y h\u1ecfi nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n v\u1ec1 c\u00e1c t\u00f9y ch\u1ecdn l\u1edbp ph\u1ee7 \u0111\u1eb7c bi\u1ec7t n\u1ebfu nam ch\u00e2m s\u1ebd ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi ho\u1eb7c c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n<p>B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c b\u01b0\u1edbc n\u00e0y, b\u1ea1n s\u1ebd gi\u1eef cho nam ch\u00e2m NdFeB c\u00f3 \u0111\u1ed9 b\u1ec1n cao ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong nhi\u1ec1u n\u0103m m\u00e0 kh\u00f4ng m\u1ea5t \u0111i l\u1ef1c t\u1eeb \u0111\u1ed9t ng\u1ed9t.<\/p>\n<p>&nbsp;<\/p>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n bi\u1ebft th\u00eam v\u1ec1 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m NdFeB, xin vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 \u0111\u1ed9 m\u1ea1nh, c\u00e1c lo\u1ea1i v\u00e0 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m NdFeB c\u00f9ng NBAEM, nh\u00e0 cung c\u1ea5p h\u00e0ng \u0111\u1ea7u Trung Qu\u1ed1c v\u1ec1 nam ch\u00e2m neodymium ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>","protected":false},"author":1,"featured_media":2797,"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-2798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/ndfeb_magnet_strength_R8GpVbbtW.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2798","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=2798"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2798\/revisions"}],"predecessor-version":[{"id":2959,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2798\/revisions\/2959"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2797"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=2798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=2798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=2798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}