{"id":1858,"date":"2025-08-11T02:47:36","date_gmt":"2025-08-11T02:47:36","guid":{"rendered":"https:\/\/nbaem.com\/?p=1858"},"modified":"2025-08-11T04:37:43","modified_gmt":"2025-08-11T04:37:43","slug":"types-of-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/types-of-magnets\/","title":{"rendered":"C\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch: Neodymium, SmCo, Ferrite, Alnico"},"content":{"rendered":"<p>B\u1ea1n c\u00f3 t\u00f2 m\u00f2 v\u1ec1 c\u00e1c lo\u1ea1i <strong>nam ch\u00e2m kh\u00e1c nhau<\/strong> v\u00e0 c\u00e1ch ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i kh\u00f4ng? D\u00f9 b\u1ea1n l\u00e0 k\u1ef9 s\u01b0, ng\u01b0\u1eddi mua hay chuy\u00ean gia k\u1ef9 thu\u1eadt, vi\u1ec7c hi\u1ec3u c\u00e1c <strong>lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau<\/strong> l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n \u2014 t\u1eeb \u0111i\u1ec7n t\u1eed v\u00e0 \u00f4 t\u00f4 \u0111\u1ebfn n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n<p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 m\u1ed9t ph\u00e2n t\u00edch r\u00f5 r\u00e0ng v\u1ec1 <strong>nam ch\u00e2m v\u0129nh c\u1eedu, nam ch\u00e2m t\u1ea1m th\u1eddi v\u00e0 nam ch\u00e2m \u0111i\u1ec7n<\/strong>, c\u00f9ng v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh quan tr\u1ecdng nh\u1ea5t, c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn v\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ee7a t\u1eebng lo\u1ea1i. Th\u00eam v\u00e0o \u0111\u00f3, v\u1edbi vai tr\u00f2 l\u00e0 nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh h\u00e0ng \u0111\u1ea7u t\u1ea1i Vi\u1ec7t Nam, NBAEM s\u1ebd cho b\u1ea1n th\u1ea5y c\u00e1ch c\u00e1c lo\u1ea1i nam ch\u00e2m n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u00f4ng nghi\u1ec7p hi\u1ec7n t\u1ea1i v\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p l\u1ea1i quan tr\u1ecdng.<\/p>\n<p>S\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi nam ch\u00e2m v\u00e0 t\u00ecm ra lo\u1ea1i ph\u00f9 h\u1ee3p nh\u1ea5t cho d\u1ef1 \u00e1n ti\u1ebfp theo c\u1ee7a b\u1ea1n ch\u01b0a? H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 c\u00e1c lo\u1ea1i chi ti\u1ebft \u0111\u1ecbnh h\u00ecnh c\u00f4ng ngh\u1ec7 t\u1eeb t\u00ednh ng\u00e0y nay.<\/p>\n<h2>C\u00e1c lo\u1ea1i nam ch\u00e2m Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n<\/h2>\n<h3>\u0110\u1ecbnh ngh\u0129a v\u00e0 nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n<\/h3>\n<p>Ch\u00fang t\u00f4i \u0111\u1ecbnh ngh\u0129a nam ch\u00e2m l\u00e0 b\u1ea5t k\u1ef3 v\u1eadt th\u1ec3 ho\u1eb7c v\u1eadt li\u1ec7u n\u00e0o t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb, m\u1ed9t v\u00f9ng m\u00e0 l\u1ef1c t\u1eeb t\u00e1c d\u1ee5ng l\u00ean c\u00e1c nam ch\u00e2m v\u00e0 v\u1eadt li\u1ec7u t\u1eeb kh\u00e1c. \u1ede c\u1ea5p \u0111\u1ed9 nguy\u00ean t\u1eed, t\u1eeb t\u00ednh xu\u1ea5t ph\u00e1t t\u1eeb spin v\u00e0 chuy\u1ec3n \u0111\u1ed9ng qu\u1ef9 \u0111\u1ea1o c\u1ee7a c\u00e1c electron. Trong c\u00e1c v\u1eadt li\u1ec7u ferromagnetic, nh\u00f3m nguy\u00ean t\u1eed t\u1ea1o th\u00e0nh c\u00e1c v\u00f9ng ph\u00e2n c\u1ef1c g\u1ecdi l\u00e0 mi\u1ec1n t\u1eeb. Khi h\u1ea7u h\u1ebft c\u00e1c mi\u1ec1n \u0111\u1ec1u ch\u1ec9 h\u01b0\u1edbng gi\u1ed1ng nhau, v\u1eadt li\u1ec7u th\u1ec3 hi\u1ec7n m\u1ed9t tr\u01b0\u1eddng t\u1eeb t\u1ed5ng h\u1ee3p.<\/p>\n<h3>C\u00e1ch t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb<\/h3>\n<ul>\n<li>C\u00e1c \u0111i\u1ec7n t\u00edch chuy\u1ec3n \u0111\u1ed9ng v\u00e0 spin electron t\u1ea1o ra c\u00e1c ph\u00e2n c\u1ef1c t\u1eeb.<\/li>\n<li>nam ch\u00e2m v\u0129nh c\u1eedu, c\u00e1c t\u01b0\u01a1ng t\u00e1c l\u01b0\u1ee3ng t\u1eed (k\u1ebft h\u1ee3p trao \u0111\u1ed5i) kh\u00f3a nhi\u1ec1u h\u01b0\u1edbng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed c\u00f9ng m\u1ed9t chi\u1ec1u.<\/li>\n<li>C\u00e1c \u0111\u01b0\u1eddng tr\u01b0\u1eddng t\u1eeb ch\u1ea1y t\u1eeb c\u1ef1c B\u1eafc c\u1ee7a nam ch\u00e2m \u0111\u1ebfn c\u1ef1c Nam c\u1ee7a n\u00f3; c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng m\u1ea1nh nh\u1ea5t g\u1ea7n c\u00e1c c\u1ef1c - Nam ch\u00e2m \u0111i\u1ec7n t\u1ea1o ra tr\u01b0\u1eddng b\u1eb1ng c\u00e1ch ch\u1ea1y d\u00f2ng \u0111i\u1ec7n qua cu\u1ed9n d\u00e2y; c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o d\u00f2ng \u0111i\u1ec7n, s\u1ed1 v\u00f2ng v\u00e0 v\u1eadt li\u1ec7u l\u00f5i.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m t\u1ef1 nhi\u00ean so v\u1edbi nam ch\u00e2m nh\u00e2n t\u1ea1o<\/h3>\n<ul>\n<li>Nam ch\u00e2m t\u1ef1 nhi\u00ean: magnetit (\u0111\u00e1 nam ch\u00e2m) l\u00e0 m\u1ed9t qu\u1eb7ng s\u1eaft t\u1ef1 nhi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c magnet h\u00f3a. N\u00f3 h\u1eefu \u00edch v\u1ec1 m\u1eb7t l\u1ecbch s\u1eed nh\u01b0ng h\u1ea1n ch\u1ebf v\u1ec1 \u0111\u1ed9 m\u1ea1nh v\u00e0 \u0111\u1ed9 nh\u1ea5t qu\u00e1n.<\/li>\n<li>Nam ch\u00e2m v\u0129nh c\u1eedu ch\u1ebf t\u1ea1o: c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 neodymium (NdFeB), samarium cobalt (SmCo), alnico v\u00e0 ferrite g\u1ed1m cung c\u1ea5p \u0111\u1ed9 b\u1ec1n d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c, h\u00ecnh d\u1ea1ng v\u00e0 h\u00e0nh vi nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li>Nam ch\u00e2m t\u1ea1m th\u1eddi v\u00e0 v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m: s\u1eaft m\u1ec1m v\u00e0 h\u1ee3p kim li\u00ean quan tr\u1edf th\u00e0nh t\u1eeb d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a tr\u01b0\u1eddng nh\u01b0ng m\u1ea5t t\u1eeb t\u00ednh khi tr\u01b0\u1eddng b\u1ecb lo\u1ea1i b\u1ecf \u2014 h\u1eefu \u00edch cho vi\u1ec7c chuy\u1ec3n m\u1ea1ch v\u00e0 l\u00f5i bi\u1ebfn \u00e1p.<\/li>\n<li>Nam ch\u00e2m \u0111i\u1ec7n: c\u00e1c tr\u01b0\u1eddng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf n\u01a1i c\u1ea7n l\u1ef1c \u0111i\u1ec1u ch\u1ec9nh ho\u1eb7c l\u1ef1c t\u1ee9c th\u1eddi cao.<\/li>\n<\/ul>\n<p>Nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh c\u1ea7n l\u01b0u \u00fd khi kh\u00e1m ph\u00e1 c\u00e1c lo\u1ea1i nam ch\u00e2m<\/p>\n<ul>\n<li>\u0110\u1ed9 m\u1ea1nh v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n: nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u01b0\u1ee3t tr\u1ed9i h\u01a1n c\u00e1c lo\u1ea1i t\u1ef1 nhi\u00ean.<\/li>\n<li>H\u00e0nh vi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0103n m\u00f2n: m\u1ed9t s\u1ed1 h\u1ee3p kim ch\u1ecbu nhi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n t\u1ed1t h\u01a1n nh\u1eefng h\u1ee3p kim kh\u00e1c.<\/li>\n<li>Kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t: ch\u1ec9 c\u00f3 nam ch\u00e2m \u0111i\u1ec7n v\u00e0 nam ch\u00e2m t\u1ea1m th\u1eddi cho ph\u00e9p t\u1eeb h\u00f3a v\u00e0 phi t\u1eeb h\u00f3a theo y\u00eau c\u1ea7u.<\/li>\n<\/ul>\n<p>T\u1ed5ng quan c\u01a1 b\u1ea3n n\u00e0y m\u1edf ra b\u1ee9c tranh v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau, c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng v\u00e0 nhi\u1ec7t \u0111\u1ed9, c\u0169ng nh\u01b0 c\u00e1c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec7n t\u1eed c\u1ee5 th\u1ec3.<\/p>\n<h2>C\u00e1c lo\u1ea1i nam ch\u00e2m T\u1ed5ng quan<\/h2>\n<p><img decoding=\"async\" class=\"alignnone wp-image-359\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1.png\" alt=\"v\u1eadt li\u1ec7u nam ch\u00e2m\" width=\"422\" height=\"282\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-200x133.png 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-300x200.png 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-400x267.png 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-600x400.png 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-768x512.png 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-800x534.png 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1-1024x683.png 1024w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1.png 1051w\" sizes=\"(max-width: 422px) 100vw, 422px\" \/><\/p>\n<p>T\u00f4i ph\u00e2n lo\u1ea1i nam ch\u00e2m th\u00e0nh b\u1ed1n nh\u00f3m ch\u00ednh \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn nhanh: nam ch\u00e2m v\u0129nh c\u1eedu, nam ch\u00e2m t\u1ea1m th\u1eddi (m\u1ec1m), nam ch\u00e2m \u0111i\u1ec7n v\u00e0 nam ch\u00e2m t\u1ef1 nhi\u00ean. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng t\u00f3m t\u1eaft nhanh t\u1eebng lo\u1ea1i, c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam \u2014 h\u1eefu \u00edch khi so s\u00e1nh c\u00e1c v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu nh\u01b0 neodymium ho\u1eb7c nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao nh\u01b0 SmCo.<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th style=\"text-align: right;\">M\u00f4 t\u1ea3 ng\u1eafn g\u1ecdn<\/th>\n<th>C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh<\/th>\n<th>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m v\u0129nh c\u1eedu (NdFeB, SmCo, Alnico, Ferrite)<\/td>\n<td style=\"text-align: right;\">Gi\u1eef t\u1eeb t\u00ednh m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>\u0110\u1ed9 m\u1ea1nh t\u1eeb cao (NdFeB), kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t\/corrosion cao (SmCo), \u1ed5n \u0111\u1ecbnh t\u1ed1t (Alnico), chi ph\u00ed th\u1ea5p (ferrite)<\/td>\n<td>\u0110i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1, xe \u0111i\u1ec7n, turbine gi\u00f3, c\u1ea3m bi\u1ebfn, loa<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m t\u1ea1m th\u1eddi (s\u1eaft m\u1ec1m)<\/td>\n<td style=\"text-align: right;\">Ch\u1ec9 t\u1eeb h\u00f3a khi c\u00f3 tr\u01b0\u1eddng t\u1eeb<\/td>\n<td>D\u1ec5 t\u1eeb h\u00f3a\/phi t\u1eeb h\u00f3a, \u0111\u1ed9 c\u1ee9ng th\u1ea5p<\/td>\n<td>C\u00f4ng t\u1eafc, d\u1ee5ng c\u1ee5 n\u00e2ng \u0111\u01a1n gi\u1ea3n, r\u01a1 le<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m \u0111i\u1ec7n<\/td>\n<td style=\"text-align: right;\">\u0110\u01b0\u1ee3c t\u1ea1o ra b\u1edfi d\u00f2ng \u0111i\u1ec7n qua cu\u1ed9n d\u00e2y quanh l\u00f5i<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c, c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n, l\u1ef1c c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng<\/td>\n<td>C\u1ea9u c\u00f4ng nghi\u1ec7p, MRI, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, h\u1ec7 th\u1ed1ng n\u00e2ng<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m t\u1ef1 nhi\u00ean (\u0111\u00e1 nam ch\u00e2m)<\/td>\n<td style=\"text-align: right;\">Kho\u00e1ng v\u1eadt t\u1ef1 nhi\u00ean c\u00f3 t\u00ednh t\u1eeb<\/td>\n<td>Y\u1ebfu, hi\u1ebfm, ch\u1ee7 y\u1ebfu d\u00f9ng cho m\u1ee5c \u0111\u00edch l\u1ecbch s\u1eed ho\u1eb7c gi\u00e1o d\u1ee5c<\/td>\n<td>Gi\u1ea3ng d\u1ea1y, tr\u00ecnh di\u1ec5n, ng\u01b0\u1eddi s\u01b0u t\u1eadp<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ghi ch\u00fa nhanh<\/p>\n<ul>\n<li>N\u1ebfu b\u1ea1n c\u1ea7n t\u00ecm hi\u1ec3u s\u00e2u v\u1ec1 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 t\u00f9y ch\u1ecdn, t\u00f4i \u0111\u1ec1 xu\u1ea5t trang v\u1eadt li\u1ec7u nam ch\u00e2m c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 t\u00ecm ngu\u1ed3n cung \u1ee9ng v\u00e0 chi ti\u1ebft k\u1ef9 thu\u1eadt: <a href=\"https:\/\/nbaem.com\/vi\/magnets-materials\/\">https:\/\/nbaem.com\/magnets-materials\/<\/a><\/li>\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n ph\u1ea3i ch\u1ecbu nhi\u1ec7t ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, h\u00e3y ki\u1ec3m tra th\u00f4ng tin v\u1ec1 nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao t\u1ea1i \u0111\u00e2y: <a href=\"https:\/\/nbaem.com\/vi\/high-temperature-magnets\/\">https:\/\/nbaem.com\/high-temperature-magnets\/<\/a><\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i nam ch\u00e2m Ph\u00e2n t\u00edch chi ti\u1ebft<\/h2>\n<p>T\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u c\u00e1c nh\u00f3m nam ch\u00e2m ch\u00ednh, lo\u1ea1i n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t v\u00e0 c\u00e1ch ch\u00fang t\u00f4i cung c\u1ea5p cho kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h3>Nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ecbnh ngh\u0129a nhanh<\/h3>\n<p>V\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu gi\u1eef tr\u01b0\u1eddng t\u1eeb m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n. C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh:<\/p>\n<ul>\n<li>\u0110\u1ed9 l\u01b0u t\u1eeb cao (gi\u1eef \u0111\u01b0\u1ee3c t\u1eeb t\u00ednh)<\/li>\n<li>Kh\u00e1ng t\u1eeb cao (kh\u00e1ng m\u1ea5t t\u1eeb)<\/li>\n<li>Ph\u1ed5 bi\u1ebfn trong \u0111i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1, c\u1ea3m bi\u1ebfn v\u00e0 n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m Neodymium NdFeB<\/h3>\n<ul>\n<li>Th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m: l\u00e0m t\u1eeb neodymium, s\u1eaft v\u00e0 boron (NdFeB). \u0110\u00e2y l\u00e0 c\u00e1c v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh nh\u1ea5t hi\u1ec7n nay.<\/li>\n<li>\u0110\u1ed9 m\u1ea1nh v\u00e0 nhi\u1ec7t \u0111\u1ed9: m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng r\u1ea5t cao; c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n ho\u1ea1t \u0111\u1ed9ng \u1edf kho\u1ea3ng 80\u2013100\u00b0C. C\u00e1c lo\u1ea1i ch\u1ecbu nhi\u1ec7t cao v\u00e0 l\u1edbp ph\u1ee7 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00ean kho\u1ea3ng 150\u00b0C.<\/li>\n<li>\u1ee8ng d\u1ee5ng trong ng\u00e0nh: nam ch\u00e2m cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1 kh\u00f4ng ch\u1ed5i than, \u0111\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng xe \u0111i\u1ec7n, turbine gi\u00f3 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng nh\u1ecf g\u1ecdn.<\/li>\n<li>Ghi ch\u00fa v\u1ec1 ngu\u1ed3n cung c\u1ea5p v\u00e0 ph\u00e2n ph\u1ed1i c\u1ee7a ch\u00fang t\u00f4i: ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u lo\u1ea1i c\u1ea5p \u0111\u1ed9 NdFeB, k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh v\u00e0 l\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n (NiCuNi, epoxy). \u0110\u1ed1i v\u1edbi kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam, ch\u00fang t\u00f4i qu\u1ea3n l\u00fd h\u1ed3 s\u01a1 xu\u1ea5t kh\u1ea9u v\u00e0 cung c\u1ea5p th\u1eddi gian giao h\u00e0ng ng\u1eafn h\u01a1n qua c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh kho h\u00e0ng.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m Cobalt Samarium SmCo<\/h3>\n<ul>\n<li>Th\u00e0nh ph\u1ea7n v\u00e0 l\u1ee3i \u00edch: h\u1ee3p kim \u0111\u1ea5t hi\u1ebfm SmCo. Ban \u0111\u1ea7u c\u00f3 \u0111\u1ed9 m\u1ea1nh th\u1ea5p h\u01a1n NdFeB nh\u01b0ng \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n nhi\u1ec1u.<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh: nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, m\u00e1y turbomachine v\u00e0 m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t kh\u1eafc nghi\u1ec7t \u0111\u00f2i h\u1ecfi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tr\u00ean 150\u00b0C.<\/li>\n<li>C\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a nam ch\u00e2m cobalt samari gi\u00fap ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng khi hi\u1ec7u su\u1ea5t ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i h\u01a1n s\u1ee9c m\u1ea1nh nguy\u00ean b\u1ea3n.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m Alnico<\/h3>\n<ul>\n<li>Th\u00e0nh ph\u1ea7n v\u00e0 ng\u1eef c\u1ea3nh: h\u1ee3p kim nh\u00f4m, niken, cobalt. M\u1ed9t trong nh\u1eefng v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu c\u1ed5 nh\u1ea5t.<\/li>\n<li>S\u1eed d\u1ee5ng hi\u1ec7n \u0111\u1ea1i: \u1ed5n \u0111\u1ecbnh trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng, t\u1ed1t trong c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng, cu\u1ed9n c\u1ea3m, v\u00e0 m\u1ed9t s\u1ed1 c\u1ea3m bi\u1ebfn h\u00e0ng kh\u00f4ng\/v\u1eadt li\u1ec7u c\u00f4ng nghi\u1ec7p.<\/li>\n<li>\u0110\u1ed9 m\u1ea1nh: \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb th\u1ea5p\u2014c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t t\u1eeb khi b\u1ecb s\u1ed1c\u2014n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf n\u01a1i c\u1ea7n h\u00ecnh d\u1ea1ng tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh h\u01a1n l\u00e0 c\u00f4ng su\u1ea5t nh\u1ecf g\u1ecdn.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m g\u1ed1m Ferrite<\/h3>\n<ul>\n<li>Th\u00e0nh ph\u1ea7n v\u00e0 l\u1ee3i \u00edch: l\u00e0m t\u1eeb oxit s\u1eaft pha tr\u1ed9n v\u1edbi strontium ho\u1eb7c bari \u2014 r\u1ebb v\u00e0 ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n<li>Hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 s\u1ea3n xu\u1ea5t: chi ph\u00ed v\u1eadt li\u1ec7u th\u1ea5p, d\u1ec5 d\u00e0ng s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t (\u1ea5n v\u00e0 nung k\u1ebft).<\/li>\n<li>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn: loa, nam ch\u00e2m t\u1ee7 l\u1ea1nh, \u0111\u1ed9ng c\u01a1, b\u1ed9 ph\u00e2n lo\u1ea1i t\u1eeb, v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb gia d\u1ee5ng.<\/li>\n<li>\u01afu \u0111i\u1ec3m c\u1ee7a nam ch\u00e2m ferrite bao g\u1ed3m chi ph\u00ed th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb v\u00e0 \u0103n m\u00f2n t\u1ed1t.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m t\u1ea1m th\u1eddi<\/h3>\n<ul>\n<li>Ch\u00fang l\u00e0 g\u00ec: s\u1eaft m\u1ec1m v\u00e0 c\u00e1c v\u1eadt li\u1ec7u t\u01b0\u01a1ng t\u1ef1 ch\u1ec9 tr\u1edf th\u00e0nh t\u1eeb khi ti\u1ebfp x\u00fac v\u1edbi tr\u01b0\u1eddng t\u1eeb.<\/li>\n<li>T\u1ea1i sao t\u1ea1m th\u1eddi: \u0111\u1ed9 gi\u1eef t\u1eeb v\u00e0 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb th\u1ea5p \u2014 ch\u00fang m\u1ea5t t\u1eeb nhanh ch\u00f3ng sau khi lo\u1ea1i b\u1ecf tr\u01b0\u1eddng ngo\u00e0i.<\/li>\n<li>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh: c\u00f4ng t\u1eafc \u0111i\u1ec7n t\u1eeb, r\u01a1 le, d\u1ee5ng c\u1ee5 n\u00e2ng \u0111\u01a1n gi\u1ea3n, v\u00e0 b\u1ed9 kh\u1edfi \u0111\u1ed9ng n\u01a1i t\u1eeb t\u00ednh t\u1ea1m th\u1eddi h\u1eefu \u00edch.<\/li>\n<\/ul>\n<h3>Nam ch\u00e2m \u0111i\u1ec7n<\/h3>\n<ul>\n<li>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng: m\u1ed9t cu\u1ed9n d\u00e2y mang d\u00f2ng \u0111i\u1ec7n t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb; l\u00f5i ferromagnetic t\u1eadp trung tr\u01b0\u1eddng. C\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng thay \u0111\u1ed5i theo d\u00f2ng \u0111i\u1ec7n v\u00e0 s\u1ed1 v\u00f2ng d\u00e2y.<\/li>\n<li>\u1ee8ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn: \u0111\u1ed9ng c\u01a1, c\u1ea7n c\u1ea9u, m\u00e1y MRI, h\u1ec7 th\u1ed1ng n\u00e2ng t\u1eeb, v\u00e0 b\u1ed9 ph\u00e2n lo\u1ea1i c\u00f4ng nghi\u1ec7p.<\/li>\n<li>\u01afu \u0111i\u1ec3m so v\u1edbi nam ch\u00e2m v\u0129nh c\u1eedu:\n<ul>\n<li>\u01afu \u0111i\u1ec3m: ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng, kh\u1ea3 n\u0103ng b\u1eadt\/t\u1eaft, h\u00ecnh d\u1ea1ng tr\u01b0\u1eddng linh ho\u1ea1t.<\/li>\n<li>Nh\u01b0\u1ee3c \u0111i\u1ec3m: c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n, l\u00e0m m\u00e1t trong s\u1eed d\u1ee5ng c\u00f4ng su\u1ea5t cao, di\u1ec7n t\u00edch l\u1edbn h\u01a1n \u0111\u1ec3 t\u1ea1o ra c\u00f9ng l\u1ef1c so v\u1edbi nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm v\u0129nh c\u1eedu.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>B\u1ea3ng so s\u00e1nh nhanh<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th style=\"text-align: right;\">C\u01b0\u1eddng \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i<\/th>\n<th style=\"text-align: right;\">Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/th>\n<th>Ch\u1ed1ng \u0103n m\u00f2n<\/th>\n<th>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NdFeB (Neodymium)<\/td>\n<td style=\"text-align: right;\">R\u1ea5t cao<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p\u2013V\u1eeba (c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n)<\/td>\n<td>C\u1ea7n ph\u1ee7 l\u1edbp<\/td>\n<td>\u0110i\u1ec7n t\u1eed, \u0111\u1ed9ng c\u01a1 EV, turbine gi\u00f3<\/td>\n<\/tr>\n<tr>\n<td>SmCo (Samari Cobalt)<\/td>\n<td style=\"text-align: right;\">Cao<\/td>\n<td style=\"text-align: right;\">Cao (&gt;150\u00b0C)<\/td>\n<td>T\u1ed1t<\/td>\n<td>H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td style=\"text-align: right;\">V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: right;\">R\u1ea5t cao<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>C\u1ea3m bi\u1ebfn, d\u1ee5ng c\u1ee5 \u0111o l\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td>Ferrite (G\u1ed1m)<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p\u2013V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: right;\">Cao<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>Loa, \u0111\u1ed9ng c\u01a1, thi\u1ebft b\u1ecb gia \u0111\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>S\u1eaft m\u1ec1m (T\u1ea1m th\u1eddi)<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p (khi kh\u00f4ng c\u1ea5p ngu\u1ed3n)<\/td>\n<td style=\"text-align: right;\">V\u1eeba ph\u1ea3i<\/td>\n<td>T\u1ed1t<\/td>\n<td>C\u00f4ng t\u1eafc, r\u01a1 le, d\u1ee5ng c\u1ee5 n\u00e2ng<\/td>\n<\/tr>\n<tr>\n<td>T\u1eeb tr\u01b0\u1eddng<\/td>\n<td style=\"text-align: right;\">Thay \u0111\u1ed5i (c\u00f3 ngu\u1ed3n)<\/td>\n<td style=\"text-align: right;\">Ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf<\/td>\n<td>Ph\u1ee5 thu\u1ed9c v\u00e0o l\u00f5i\/l\u1edbp ph\u1ee7<\/td>\n<td>C\u1ea9u, MRI, n\u00e2ng c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>N\u1ebfu b\u1ea1n c\u1ea7n c\u00e1c lo\u1ea1i c\u1ea5p, l\u1edbp ph\u1ee7 ho\u1eb7c h\u00ecnh d\u1ea1ng t\u00f9y ch\u1ec9nh cho s\u1ea3n ph\u1ea9m Vi\u1ec7t Nam, t\u00f4i c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch nh\u1eefng g\u00ec ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u v\u1ec1 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 b\u1ec1n v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i t\u1ea1i NBAEM t\u1eadp trung v\u00e0o ngu\u1ed3n cung c\u1ea5p NdFeB v\u00e0 SmCo \u0111\u00e1ng tin c\u1eady, cung c\u1ea5p ferrite theo kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t Vi\u1ec7t Nam.<\/p>\n<h2>So s\u00e1nh c\u00e1c lo\u1ea1i nam ch\u00e2m<\/h2>\n<p>T\u00f4i \u0111\u00e3 chu\u1ea9n b\u1ecb m\u1ed9t b\u1ea3ng so s\u00e1nh nhanh c\u00e1c lo\u1ea1i nam ch\u00e2m ph\u1ed5 bi\u1ebfn \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb, d\u00f2ng t\u1eeb, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, y\u00eau c\u1ea7u ch\u1ed1ng \u0103n m\u00f2n, chi ph\u00ed v\u00e0 \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th style=\"text-align: right;\">C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb t\u01b0\u01a1ng \u0111\u1ed1i (\u0111\u1ed9 \u0111\u1eb7c d\u00f2ng t\u1eeb)<\/th>\n<th style=\"text-align: right;\">Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<th>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 l\u1edbp ph\u1ee7<\/th>\n<th style=\"text-align: right;\">Gi\u00e1 th\u00e0nh<\/th>\n<th>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodymium NdFeB<\/td>\n<td style=\"text-align: right;\">R\u1ea5t cao (0.9\u20131.4 T)<\/td>\n<td style=\"text-align: right;\">80\u2013150\u00b0C (lo\u1ea1i nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ebfn kho\u1ea3ng 200\u00b0C)<\/td>\n<td>D\u1ec5 b\u1ecb \u0103n m\u00f2n \u2014 <strong>niken, k\u1ebdm, epoxy<\/strong> l\u1edbp ph\u1ee7 ph\u1ed5 bi\u1ebfn<\/td>\n<td style=\"text-align: right;\">Trung b\u00ecnh \u0111\u1ebfn cao<\/td>\n<td>\u0110\u1ed9ng c\u01a1, drone, nam ch\u00e2m cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, c\u1ea3m bi\u1ebfn turbine gi\u00f3<\/td>\n<\/tr>\n<tr>\n<td>Samarium Cobalt SmCo<\/td>\n<td style=\"text-align: right;\">Cao (0.7\u20131.1 T)<\/td>\n<td style=\"text-align: right;\">250\u2013300\u00b0C<\/td>\n<td>Kh\u00e1ng n\u1ed9i t\u1ea1i t\u1ed1t \u2014 th\u01b0\u1eddng kh\u00f4ng ph\u1ee7 l\u1edbp<\/td>\n<td style=\"text-align: right;\">Cao (\u0111\u1ea5t hi\u1ebfm)<\/td>\n<td>\u0110\u1ed9ng c\u01a1 nhi\u1ec7t \u0111\u1ed9 cao, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, d\u1ee5ng c\u1ee5 khoan, qu\u00e2n s\u1ef1<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td style=\"text-align: right;\">Trung b\u00ecnh (0.6\u20131.0 T)<\/td>\n<td style=\"text-align: right;\">300\u2013500\u00b0C<\/td>\n<td>V\u1eeba ph\u1ea3i \u2014 c\u00f3 th\u1ec3 m\u1ea1, th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u1ea1 ho\u1eb7c s\u01a1n<\/td>\n<td style=\"text-align: right;\">Trung b\u00ecnh<\/td>\n<td>C\u1ea3m bi\u1ebfn, \u0111\u1ed3ng h\u1ed3 \u0111o, d\u1ee5ng c\u1ee5, pickups<\/td>\n<\/tr>\n<tr>\n<td>Ferrite g\u1ed1m<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh (0.2\u20130.4 T)<\/td>\n<td style=\"text-align: right;\">~250\u00b0C<\/td>\n<td>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n xu\u1ea5t s\u1eafc \u2014 th\u01b0\u1eddng kh\u00f4ng c\u1ea7n l\u1edbp ph\u1ee7<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p (hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed)<\/td>\n<td>Loa, \u0111\u1ed9ng c\u01a1 AC, nam ch\u00e2m t\u1ee7 l\u1ea1nh, thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng<\/td>\n<\/tr>\n<tr>\n<td>S\u1eaft m\u1ec1m t\u1ea1m th\u1eddi<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p (t\u00f9y thu\u1ed9c v\u00e0o tr\u01b0\u1eddng t\u1eeb)<\/td>\n<td style=\"text-align: right;\">V (gi\u1edbi h\u1ea1n b\u1edfi l\u00f5i)<\/td>\n<td>S\u1ebd b\u1ecb g\u1ec9 tr\u1eeb khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd<\/td>\n<td style=\"text-align: right;\">Th\u1ea5p<\/td>\n<td>C\u00f4ng t\u1eafc, r\u01a1 le, d\u1ee5ng c\u1ee5 n\u00e2ng \u0111\u01a1n gi\u1ea3n n\u01a1i t\u1eeb t\u00ednh t\u1ea1m th\u1eddi c\u00f3 \u00edch<\/td>\n<\/tr>\n<tr>\n<td>T\u1eeb tr\u01b0\u1eddng<\/td>\n<td style=\"text-align: right;\">Bi\u1ebfn \u0111\u1ed5i (t\u00f9y thu\u1ed9c v\u00e0o cu\u1ed9n d\u00e2y v\u00e0 c\u00f4ng su\u1ea5t) Ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp c\u00e1ch \u0111i\u1ec7n c\u1ee7a cu\u1ed9n d\u00e2y<\/td>\n<td style=\"text-align: right;\">L\u00f5i c\u00f3 th\u1ec3 c\u1ea7n b\u1ea3o v\u1ec7; cu\u1ed9n d\u00e2y c\u1ea7n c\u00e1ch \u0111i\u1ec7n<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i (t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc v\u00e0 c\u00f4ng su\u1ea5t)<\/td>\n<td style=\"text-align: right;\">C\u1ea9u, MRI, n\u00e2ng c\u00f4ng nghi\u1ec7p, solenoid, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec1u khi\u1ec3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh t\u00f4i s\u1eed d\u1ee5ng khi ch\u1ecdn l\u1ef1a<\/p>\n<ul>\n<li>\u0110\u1ec3 c\u00f3 c\u00f4ng su\u1ea5t cao nh\u1ecf g\u1ecdn ch\u1ecdn <strong>NdFeB<\/strong> \u2014 v\u1eadt li\u1ec7u t\u1eeb t\u1ed1t nh\u1ea5t cho nhi\u1ec1u \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111i\u1ec7n t\u1eed nh\u01b0ng c\u1ea7n l\u1edbp ph\u1ee7 v\u00e0 l\u1ef1a ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 c\u1ea9n th\u1eadn<\/li>\n<li>\u0110\u1ed1i v\u1edbi \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u0103n m\u00f2n, ch\u1ecdn <strong>SmCo<\/strong> or <strong>Alnico<\/strong> \u2014 SmCo l\u00e0 h\u00e0ng \u0111\u1ea7u cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 nam ch\u00e2m nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li>\u0110\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, ch\u1ecdn <strong>s\u1eaft t\u1eeb<\/strong> \u2014 ph\u00f9 h\u1ee3p cho c\u00e1c b\u1ed9 ph\u1eadn loa v\u00e0 th\u1ecb tr\u01b0\u1eddng \u0111\u1ea1i ch\u00fang.<\/li>\n<li>S\u1eed d\u1ee5ng <strong>nam ch\u00e2m \u0111i\u1ec7n<\/strong> khi b\u1ea1n c\u1ea7n kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t v\u00e0 c\u00f4ng t\u1eafc ngu\u1ed3n, nh\u01b0ng d\u1ef1 t\u00ednh l\u00e0m m\u00e1t c\u00f4ng su\u1ea5t.<\/li>\n<li>N\u1ebfu mua t\u1eeb nh\u00e0 cung c\u1ea5p nam ch\u00e2m c\u00f4ng nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam ho\u1eb7c t\u00ecm ki\u1ebfm c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh, h\u00e3y x\u00e1c nh\u1eadn c\u1ea5p \u0111\u1ed9, l\u1edbp ph\u1ee7 v\u00e0 th\u1eddi gian giao h\u00e0ng ngay t\u1eeb \u0111\u1ea7u.<\/li>\n<\/ul>\n<p>B\u1ea3n ch\u1ee5p n\u00e0y gi\u00fap b\u1ea1n ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ed9 m\u1ea1nh, nhi\u1ec7t \u0111\u1ed9, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 chi ph\u00ed cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t khi ch\u1ecdn lo\u1ea1i nam ch\u00e2m<\/h2>\n<p>Khi ch\u1ecdn nam ch\u00e2m, h\u00e3y ngh\u0129 \u0111\u1ebfn t\u00ednh th\u1ef1c t\u1ebf tr\u01b0\u1edbc ti\u00ean. T\u00f4i ph\u00e2n chia c\u00e1c l\u1ef1a ch\u1ecdn th\u00e0nh c\u00e1c y\u1ebfu t\u1ed1 r\u00f5 r\u00e0ng \u0111\u1ec3 b\u1ea1n ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu ho\u1eb7c \u0111i\u1ec7n t\u1eeb cho c\u00f4ng vi\u1ec7c.<\/p>\n<h3>Y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 m\u1ea1nh v\u00e0 h\u00ecnh d\u1ea1ng tr\u01b0\u1eddng<\/strong> \u2013 B\u1ea1n c\u00f3 c\u1ea7n l\u1ef1c l\u1edbn t\u1ea1i m\u1ed9t \u0111i\u1ec3m nh\u1ecf (s\u1eed d\u1ee5ng nam ch\u00e2m neodymium) hay m\u1ed9t tr\u01b0\u1eddng \u0111\u1ed3ng nh\u1ea5t r\u1ed9ng (l\u1ee3i th\u1ebf c\u1ee7a nam ch\u00e2m ferrite)?<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 kh\u00f4ng gian<\/strong> \u2013 C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf s\u1eed d\u1ee5ng nam ch\u00e2m NdFeB nh\u1ecf g\u1ecdn ho\u1eb7c nam ch\u00e2m t\u00f9y ch\u1ec9nh cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. Vi\u1ec7c n\u00e2ng t\u1ea3i n\u1eb7ng ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi c\u00e1c nam ch\u00e2m v\u0129nh c\u1eedu l\u1edbn h\u01a1n ho\u1eb7c nam ch\u00e2m \u0111i\u1ec7n.<\/li>\n<li><strong>Chu k\u1ef3 l\u00e0m vi\u1ec7c<\/strong> \u2013 S\u1eed d\u1ee5ng li\u00ean t\u1ee5c (\u0111\u1ed9ng c\u01a1, m\u00e1y ph\u00e1t \u0111i\u1ec7n) \u01b0u ti\u00ean v\u1eadt li\u1ec7u \u1ed5n \u0111\u1ecbnh; s\u1eed d\u1ee5ng th\u1ec9nh tho\u1ea3ng c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn c\u00e1c l\u1ef1a ch\u1ecdn r\u1ebb h\u01a1n.<\/li>\n<\/ul>\n<h3>Nhi\u1ec7t \u0111\u1ed9 v\u00e0 m\u00f4i tr\u01b0\u1eddng<\/h3>\n<ul>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/strong> \u2013 \u0110\u1ed1i v\u1edbi nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao, ch\u1ecdn c\u00e1c nam ch\u00e2m samarium cobalt ho\u1eb7c Alnico \u0111\u1eb7c bi\u1ec7t. NdFeB m\u1ea1nh nh\u01b0ng c\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 m\u1ea1nh khi nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 \u1ea9m<\/strong> \u2013 NdFeB th\u01b0\u1eddng c\u1ea7n l\u1edbp ph\u1ee7; ferrite v\u00e0 SmCo ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n. H\u00e3y xem x\u00e9t ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t n\u1ebfu b\u1ea1n \u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n ho\u1eb7c c\u00f4ng nghi\u1ec7p.<\/li>\n<li><strong>S\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/strong> \u2013 S\u1eed d\u1ee5ng nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao ho\u1eb7c nam ch\u00e2m c\u00f3 l\u1edbp ph\u1ee7 thi\u1ebft k\u1ebf cho \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i.<\/li>\n<\/ul>\n<h3>Chi ph\u00ed, kh\u1ea3 n\u0103ng cung c\u1ea5p v\u00e0 th\u1eddi gian giao h\u00e0ng<\/h3>\n<ul>\n<li><strong>Chi ph\u00ed v\u1eadt li\u1ec7u<\/strong> \u2013 NdFeB hi\u1ec7u su\u1ea5t cao nh\u01b0ng \u0111\u1eaft h\u01a1n ferrite. SmCo c\u00f3 gi\u00e1 cao h\u01a1n nh\u01b0ng v\u01b0\u1ee3t tr\u1ed9i \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><strong>Chu\u1ed7i cung \u1ee9ng<\/strong> \u2013 Gi\u00e1 v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm v\u00e0 th\u1eddi gian d\u1eabn c\u00f3 th\u1ec3 thay \u0111\u1ed5i nhanh ch\u00f3ng. L\u00e0 nh\u00e0 cung c\u1ea5p nam ch\u00e2m c\u00f4ng nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam, ch\u00fang t\u00f4i theo d\u00f5i kh\u1ea3 n\u0103ng cung \u1ee9ng v\u00e0 \u0111\u1ec1 xu\u1ea5t c\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf \u0111\u1ec3 gi\u1eef cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u0111\u00fang ti\u1ebfn \u0111\u1ed9.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc \u0111\u01a1n h\u00e0ng v\u00e0 t\u1ed3n kho<\/strong> \u2013 C\u00e1c l\u00f4 nh\u1ecf ho\u1eb7c h\u00ecnh d\u1ea1ng t\u00f9y ch\u1ec9nh c\u00f3 th\u1ec3 l\u00e0m t\u0103ng th\u1eddi gian d\u1eabn. H\u00e3y h\u1ecfi v\u1ec1 MOQ v\u00e0 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh d\u1ef1 tr\u1eef h\u00e0ng.<\/li>\n<\/ul>\n<h3>\u0110\u1ed9 tin c\u1eady c\u1ee7a nh\u00e0 cung c\u1ea5p v\u00e0 h\u1ed7 tr\u1ee3 t\u00f9y ch\u1ec9nh<\/h3>\n<ul>\n<li><strong>Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/strong> \u2013 T\u00ecm ki\u1ebfm c\u00e1c b\u00e1o c\u00e1o ki\u1ec3m tra v\u1eadt li\u1ec7u, hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh v\u00e0 ch\u1ee9ng nh\u1eadn. Ch\u00fang t\u00f4i cung c\u1ea5p ki\u1ec3m tra m\u1eabu v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c l\u00f4 h\u00e0ng.<\/li>\n<li><strong>T\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh<\/strong> \u2013 Gia c\u00f4ng, l\u1edbp ph\u1ee7, h\u00ecnh d\u1ea1ng li\u00ean k\u1ebft v\u00e0 l\u1eafp r\u00e1p \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nam ch\u00e2m cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1eb7c gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh t\u00f9y ch\u1ec9nh.<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 logistics<\/strong> \u2013 Nh\u1eadn s\u1ef1 gi\u00fap \u0111\u1ee1 trong vi\u1ec7c ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng (so s\u00e1nh v\u1eadt li\u1ec7u t\u1eeb t\u00ednh). Ch\u00fang t\u00f4i cung c\u1ea5p \u00fd ki\u1ebfn thi\u1ebft k\u1ebf, ch\u1ebf t\u1ea1o m\u1eabu th\u1eed v\u00e0 c\u00e1c ph\u01b0\u01a1ng \u00e1n v\u1eadn chuy\u1ec3n ph\u00f9 h\u1ee3p v\u1edbi th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/li>\n<\/ul>\n<h3>Ch\u00fang t\u00f4i gi\u00fap b\u1ea1n ch\u1ecdn l\u1ef1a<\/h3>\n<ul>\n<li>H\u01b0\u1edbng d\u1eabn nhanh v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n: NdFeB cho m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t, SmCo cho nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n, ferrite v\u1edbi chi ph\u00ed th\u1ea5p, Alnico cho c\u1ea3m bi\u1ebfn, electromagnet cho l\u1ef1c \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li>Ki\u1ec3m tra, ch\u1ee9ng nh\u1eadn v\u00e0 gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam v\u00e0 d\u1ecbch v\u1ee5 logistics trong n\u01b0\u1edbc.<\/li>\n<li>\u01af\u1edbc l\u01b0\u1ee3ng th\u1eddi gian d\u1eabn r\u00f5 r\u00e0ng, ph\u00e2n t\u00edch chi ph\u00ed v\u00e0 \u0111\u1ec1 xu\u1ea5t l\u1edbp ph\u1ee7 b\u1ec1n ho\u1eb7c c\u00e1c thay th\u1ebf khi ngu\u1ed3n \u0111\u1ea5t hi\u1ebfm khan hi\u1ebfm.<\/li>\n<\/ul>\n<h2>Xu h\u01b0\u1edbng c\u00f4ng ngh\u1ec7 v\u00e0 v\u1eadt li\u1ec7u c\u1ee7a c\u00e1c lo\u1ea1i nam ch\u00e2m<\/h2>\n<p>T\u00f4i theo d\u00f5i th\u1ecb tr\u01b0\u1eddng nam ch\u00e2m ch\u1eb7t ch\u1ebd cho kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam, v\u00e0 c\u00f3 ba xu h\u01b0\u1edbng r\u00f5 r\u00e0ng \u0111ang \u0111\u1ecbnh h\u00ecnh t\u01b0\u01a1ng lai c\u1ee7a v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 electromagnet.<\/p>\n<p>Ti\u1ebfn b\u1ed9 trong nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm v\u00e0 ph\u00e1t tri\u1ec3n h\u1ee3p kim<\/p>\n<ul>\n<li>C\u00e1c lo\u1ea1i NdFeB v\u00e0 SmCo hi\u1ec7u su\u1ea5t cao h\u01a1n: nh\u00e0 s\u1ea3n xu\u1ea5t \u0111ang n\u00e2ng cao s\u1ea3n l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng (BHmax) v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ec3 nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n trong \u0111\u1ed9ng c\u01a1 v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/li>\n<li>M\u1eb9o m\u1edbi v\u1ec1 h\u1ee3p kim: khu\u1ebfch t\u00e1n qua ranh gi\u1edbi h\u1ea1t, pha tr\u1ed9n \u0111\u1ea5t hi\u1ebfm t\u1ed1i \u01b0u, v\u00e0 c\u00e1c c\u00f4ng th\u1ee9c li\u00ean k\u1ebft c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n \u0111\u1ed3ng th\u1eddi gi\u1ea3m s\u1eed d\u1ee5ng \u0111\u1ea5t hi\u1ebfm n\u1eb7ng.<\/li>\n<li>\u1ee8ng d\u1ee5ng: v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu t\u1ed1t h\u01a1n gi\u00fap \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n, turbine gi\u00f3 v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf g\u1ecdn ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n. Xem th\u00eam v\u1ec1 nam ch\u00e2m neodymium cho c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn.<\/li>\n<\/ul>\n<p>Ngu\u1ed3n cung b\u1ec1n v\u1eefng v\u00e0 v\u1eadt li\u1ec7u t\u1eeb t\u00ednh t\u00e1i ch\u1ebf<\/p>\n<ul>\n<li>Vi\u1ec7c t\u00e1i ch\u1ebf \u0111ang ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng: nam ch\u00e2m \u0111\u01b0\u1ee3c thu h\u1ed3i t\u1eeb \u1ed5 c\u1ee9ng, \u0111\u1ed9ng c\u01a1 v\u00e0 r\u00e1c th\u1ea3i \u0111i\u1ec7n t\u1eed \u0111\u1ec3 gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ea5t hi\u1ebfm m\u1edbi.<\/li>\n<li>Gi\u1ea3m d\u1ea5u ch\u00e2n carbon: nam ch\u00e2m NdFeB t\u00e1i ch\u1ebf v\u00e0 li\u00ean k\u1ebft c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhi\u1ec1u nhu c\u1ea7u c\u00f4ng nghi\u1ec7p v\u1edbi chi ph\u00ed m\u00f4i tr\u01b0\u1eddng th\u1ea5p h\u01a1n.<\/li>\n<li>Kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam n\u00ean h\u1ecfi nh\u00e0 cung c\u1ea5p v\u1ec1 n\u1ed9i dung t\u00e1i ch\u1ebf v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c khi mua nam ch\u00e2m.<\/li>\n<\/ul>\n<p>T\u00e1c \u0111\u1ed9ng c\u1ee7a chu\u1ed7i cung \u1ee9ng v\u00e0 vai tr\u00f2 c\u1ee7a Trung Qu\u1ed1c trong s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1ecbnh gi\u00e1<\/p>\n<ul>\n<li>Trung Qu\u1ed1c v\u1eabn chi\u1ebfm \u01b0u th\u1ebf trong x\u1eed l\u00fd \u0111\u1ea5t hi\u1ebfm v\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m, \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1 to\u00e0n c\u1ea7u v\u00e0 th\u1eddi gian giao h\u00e0ng.<\/li>\n<li>\u0110\u1ed1i v\u1edbi kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch: th\u1eddi gian giao h\u00e0ng l\u00e2u h\u01a1n, \u0111a ngu\u1ed3n cung \u1ee9ng v\u00e0 d\u1ef1 tr\u1eef t\u1ed3n kho gi\u00fap tr\u00e1nh tr\u00ec ho\u00e3n s\u1ea3n xu\u1ea5t.<\/li>\n<li>M\u1ed9t s\u1ed1 nh\u00e0 mua h\u00e0ng \u0111ang chuy\u1ec3n sang c\u00e1c lo\u1ea1i nam ch\u00e2m thay th\u1ebf ho\u1eb7c c\u1ea5p \u0111\u1ed9 ch\u1ecbu nhi\u1ec7t cao h\u01a1n \u0111\u1ec3 gi\u1ea3m nhu c\u1ea7u v\u1ec1 c\u00e1c nguy\u00ean t\u1ed1 khan hi\u1ebfm. T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 \u00fd ngh\u0129a g\u00ec \u0111\u1ed1i v\u1edbi b\u1ea1n<\/p>\n<ul>\n<li>N\u1ebfu b\u1ea1n c\u1ea7n \u0111\u1ed9 m\u1ea1nh cao v\u1edbi chi ph\u00ed th\u1ea5p h\u01a1n, c\u00e1c c\u1ea5p \u0111\u1ed9 NdB hi\u1ec7n \u0111\u1ea1i l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u.<\/li>\n<li>\u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng ch\u1ecbu nhi\u1ec7t cao ho\u1eb7c \u0103n m\u00f2n, SmCo v\u00e0 c\u00e1c lo\u1ea1i nam ch\u00e2m ch\u1ecbu nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p h\u01a1n.<\/li>\n<li>H\u1ecfi nh\u00e0 cung c\u1ea5p v\u1ec1 c\u00e1c t\u00f9y ch\u1ecdn v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf, th\u1eddi gian giao h\u00e0ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed, hi\u1ec7u su\u1ea5t v\u00e0 r\u1ee7i ro cung \u1ee9ng.<\/li>\n<\/ul>\n<h2>T\u1ea1i sao ch\u1ecdn NBAEM cho nhu c\u1ea7u v\u1eadt li\u1ec7u nam ch\u00e2m v\u00e0 c\u00e1c lo\u1ea1i nam ch\u00e2m<\/h2>\n<p>Ch\u00fang t\u00f4i l\u00e0 NBAEM (nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh c\u1ee7a Trung Qu\u1ed1c) ph\u1ee5c v\u1ee5 kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam v\u1edbi \u0111\u1ea7y \u0111\u1ee7 c\u00e1c lo\u1ea1i nam ch\u00e2m \u2014 NdFeB, SmCo, Alnico, ferrite, nam ch\u00e2m m\u1ec1m t\u1ea1m th\u1eddi v\u00e0 nam ch\u00e2m \u0111i\u1ec7n. Ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o cung \u1ee9ng \u0111\u00e1ng tin c\u1eady, th\u00f4ng s\u1ed1 r\u00f5 r\u00e0ng v\u00e0 h\u1ed7 tr\u1ee3 th\u1ef1c t\u1ebf \u0111\u1ec3 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m v\u00e0 s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n di\u1ec5n ra su\u00f4n s\u1ebb.<\/p>\n<h3>Ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ch\u1ee9ng nh\u1eadn<\/h3>\n<ul>\n<li>H\u1ec7 th\u1ed1ng ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea1t ch\u1ee9ng nh\u1eadn ISO 9001 v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c theo l\u00f4 \u0111\u1ecbnh k\u1ef3.<\/li>\n<li>Tu\u00e2n th\u1ee7 RoHS v\u00e0 REACH cho c\u00e1c b\u1ed9 ph\u1eadn s\u1eed d\u1ee5ng trong \u0111i\u1ec7n t\u1eed v\u00e0 thi\u1ebft b\u1ecb gia d\u1ee5ng t\u1ea1i Vi\u1ec7t Nam.<\/li>\n<li>Ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7: m\u1eadt \u0111\u1ed9 flux (Gauss\/Tesla), \u0111\u1ed9 c\u1ee9ng t\u1eeb, \u0111\u01b0\u1eddng cong m\u1ea5t t\u1eeb, \u1ed5n \u0111\u1ecbnh nhi\u1ec7t, ki\u1ec3m tra phun mu\u1ed1i v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh l\u1edbp ph\u1ee7.<\/li>\n<li>B\u00e1o c\u00e1o ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a b\u00ean th\u1ee9 ba c\u00f3 s\u1eb5n theo y\u00eau c\u1ea7u cho c\u00e1c d\u1ef1 \u00e1n quan tr\u1ecdng.<\/li>\n<\/ul>\n<h3>H\u1ed7 tr\u1ee3 t\u00f9y ch\u1ec9nh d\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft k\u1ebf<\/h3>\n<ul>\n<li>Gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh t\u00f9y ch\u1ec9nh: c\u1ea5p \u0111\u1ed9 t\u00f9y ch\u1ec9nh, m\u1eabu magnetization, h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, t\u00f9y ch\u1ecdn li\u00ean k\u1ebft v\u00e0 nung k\u1ebft.<\/li>\n<li>H\u1ed7 tr\u1ee3 CAD v\u00e0 t\u1ea1o m\u1eabu, ch\u1ea1y th\u1eed m\u1eabu, v\u00e0 gia c\u00f4ng khu\u00f4n m\u1eabu cho s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t.<\/li>\n<li>L\u1eafp r\u00e1p v\u00e0 c\u00e2n b\u1eb1ng nam ch\u00e2m cho r\u00f4to, loa v\u00e0 module c\u1ea3m bi\u1ebfn.<\/li>\n<li>H\u1ed7 tr\u1ee3 l\u1ef1a ch\u1ecdn gi\u1eefa v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111i\u1ec7n d\u1ef1a tr\u00ean chi ph\u00ed, \u0111\u1ed9 m\u1ea1nh v\u00e0 y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ul>\n<h3>Cung c\u1ea5p s\u1ea3n xu\u1ea5t v\u00e0 logistics<\/h3>\n<ul>\n<li>N\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t l\u1edbn v\u1edbi MOQ linh ho\u1ea1t cho c\u00e1c d\u1ef1 \u00e1n th\u1eed nghi\u1ec7m v\u00e0 \u0111\u01a1n h\u00e0ng quy m\u00f4 l\u1edbn.<\/li>\n<li>C\u00e1c ph\u01b0\u01a1ng \u00e1n v\u1eadn chuy\u1ec3n t\u1eadp trung v\u00e0o th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam, kinh nghi\u1ec7m th\u00f4ng quan v\u00e0 kho b\u00e3i t\u00f9y ch\u1ecdn \u0111\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian giao h\u00e0ng.<\/li>\n<li>\u0110\u00f3ng g\u00f3i v\u00e0 d\u00e1n nh\u00e3n nh\u1ea5t qu\u00e1n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u nh\u1eadp kh\u1ea9u v\u00e0 nh\u00e0 b\u00e1n l\u1ebb t\u1ea1i Vi\u1ec7t Nam.<\/li>\n<li>Gi\u00e1 c\u1ea3 c\u1ea1nh tranh cho v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 l\u1ee3i th\u1ebf c\u1ee7a nam ch\u00e2m ferrite nh\u1edd qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn n\u1ed9i b\u1ed9.<\/li>\n<\/ul>\n<h3>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 d\u1ecbch v\u1ee5 sau b\u00e1n h\u00e0ng<\/h3>\n<ul>\n<li>K\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5p \u0111\u1ed9 nam ch\u00e2m theo nhu c\u1ea7u: s\u1eed d\u1ee5ng nam ch\u00e2m neodymium cho \u0111\u1ed9 b\u1ec1n cao, t\u00ednh ch\u1ea5t c\u1ee7a nam ch\u00e2m samarium cobalt cho m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao\/\u0103n m\u00f2n, ferrite cho \u0111\u1ed9ng c\u01a1 ti\u1ebft ki\u1ec7m chi ph\u00ed, v\u00e0 \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eeb \u0111\u1ec3 ki\u1ec3m so\u00e1t.<\/li>\n<li>So s\u00e1nh v\u1eadt li\u1ec7u t\u1eeb gi\u00fap \u0111\u00e1nh gi\u00e1 s\u1ee9c m\u1ea1nh, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 chi ph\u00ed.<\/li>\n<li>X\u1eed l\u00fd s\u1ef1 c\u1ed1 nhanh ch\u00f3ng, linh ki\u1ec7n thay th\u1ebf v\u00e0 d\u1eef li\u1ec7u ki\u1ec3m tra tu\u1ed5i th\u1ecd theo y\u00eau c\u1ea7u.<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 k\u1ebft qu\u1ea3 kh\u00e1ch h\u00e0ng<\/h3>\n<ul>\n<li>\u0110i\u1ec7n t\u1eed ti\u00eau d\u00f9ng: cung c\u1ea5p b\u1ed9 l\u1eafp r\u00e1p NdFeB gi\u1ea3m k\u00edch th\u01b0\u1edbc v\u00e0 n\u00e2ng cao m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 loa m\u1ea1nh h\u01a1n.<\/li>\n<li>C\u1ea3m bi\u1ebfn h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5: cung c\u1ea5p nam ch\u00e2m SmCo cho hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh tr\u00ean 200\u00b0C.<\/li>\n<li>\u0110\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p: cung c\u1ea5p nam ch\u00e2m ferrite v\u00e0 nam ch\u00e2m li\u00ean k\u1ebft \u0111\u1ec3 gi\u1ea3m chi ph\u00ed trong khi v\u1eabn \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn.<\/li>\n<li>C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c t\u1ea1i Vi\u1ec7t Nam h\u01b0\u1edfng l\u1ee3i t\u1eeb h\u1ed3 s\u01a1 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng r\u00f5 r\u00e0ng, d\u1ee5ng c\u1ee5 t\u00f9y ch\u1ec9nh v\u00e0 th\u1eddi gian giao h\u00e0ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n<p>D\u1ecbch v\u1ee5 t\u1ed5ng quan<\/p>\n<table>\n<thead>\n<tr>\n<th>D\u1ecbch v\u1ee5<\/th>\n<th>L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kho h\u00e0ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c lo\u1ea1i nam ch\u00e2m<\/td>\n<td>M\u1eabu nhanh v\u00e0 nguy\u00ean m\u1eabu nhanh ch\u00f3ng<\/td>\n<\/tr>\n<tr>\n<td>D\u1ee5ng c\u1ee5 t\u00f9y ch\u1ec9nh &amp; CAD<\/td>\n<td>Nam ch\u00e2m ph\u00f9 h\u1ee3p cho thi\u1ebft b\u1ecb v\u00e0 \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n<tr>\n<td>Ki\u1ec3m tra ch\u1ee9ng nh\u1eadn<\/td>\n<td>Ch\u1ee9ng minh tu\u00e2n th\u1ee7 v\u00e0 hi\u1ec7u su\u1ea5t cho kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam<\/td>\n<\/tr>\n<tr>\n<td>V\u1eadn chuy\u1ec3n v\u00e0 kho b\u00e3i<\/td>\n<td>Th\u1eddi gian giao h\u00e0ng ng\u1eafn h\u01a1n v\u00e0 th\u1ee7 t\u1ee5c h\u1ea3i quan su\u00f4n s\u1ebb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i v\u00e0 ch\u00fang t\u00f4i s\u1ebd nhanh ch\u00f3ng ph\u00f9 h\u1ee3p lo\u1ea1i nam ch\u00e2m v\u00e0 c\u1ea5p \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n, chia s\u1ebb b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m, cung c\u1ea5p gi\u00e1 c\u1ea3 v\u00e0 th\u1eddi gian giao h\u00e0ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch: Neodymium, NdFeB, SmCo, Alnico, Ferrite, \u0111\u1ed9 m\u1ea1nh, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, ch\u1ed1ng \u0103n m\u00f2n, \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, NBAEM<\/p>","protected":false},"author":1,"featured_media":359,"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-1858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1858","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=1858"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1858\/revisions"}],"predecessor-version":[{"id":1865,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1858\/revisions\/1865"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/359"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}