{"id":2034,"date":"2025-08-28T04:18:30","date_gmt":"2025-08-28T04:18:30","guid":{"rendered":"https:\/\/nbaem.com\/?p=2034"},"modified":"2025-08-28T04:28:06","modified_gmt":"2025-08-28T04:28:06","slug":"soft-magnetic-materials-vs-hard-magnetic-materials","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/soft-magnetic-materials-vs-hard-magnetic-materials\/","title":{"rendered":"H\u01b0\u1edbng D\u1eabn V\u1eadt Li\u1ec7u \u0110a Nhi\u1ec7t \u0110\u1ed9 M\u1ec1m v\u00e0 V\u1eadt Li\u1ec7u \u0110a Nhi\u1ec7t \u0110\u1ed9 C\u1ee9ng"},"content":{"rendered":"<h2>Hi\u1ec3u bi\u1ebft v\u1ec1 v\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/h2>\n<p>V\u1eadt li\u1ec7u t\u1eeb l\u00e0 c\u00e1c ch\u1ea5t ph\u1ea3n \u1ee9ng v\u1edbi tr\u01b0\u1eddng t\u1eeb v\u00e0 c\u00f3 th\u1ec3 t\u1ea1o ra ho\u1eb7c b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u1eeb t\u00ednh. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng \u0111i\u1ec7n, \u0111i\u1ec7n t\u1eed v\u00e0 c\u00f4ng nghi\u1ec7p, t\u1eeb s\u1ea3n xu\u1ea5t \u0111i\u1ec7n n\u0103ng \u0111\u1ebfn l\u01b0u tr\u1eef d\u1eef li\u1ec7u.<\/p>\n<h3>\u0110\u1ecbnh ngh\u0129a v\u00e0 ph\u00e2n lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/h3>\n<p>V\u1eadt li\u1ec7u t\u1eeb th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean c\u00e1ch ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i:<\/p>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u diamagnet<\/strong> \u2013 Nh\u1eb9 nh\u00e0ng \u0111\u1ea9y xa c\u00e1c tr\u01b0\u1eddng t\u1eeb (v\u00ed d\u1ee5: \u0111\u1ed3ng, v\u00e0ng)<\/li>\n<li><strong>V\u1eadt li\u1ec7u t\u1eeb paramagnetic<\/strong> \u2013 Nh\u1eb9 nh\u00e0ng b\u1ecb h\u00fat b\u1edfi c\u00e1c tr\u01b0\u1eddng t\u1eeb (v\u00ed d\u1ee5: nh\u00f4m, b\u1ea1ch kim)<\/li>\n<li><strong>V\u1eadt li\u1ec7u ferromagnet<\/strong> \u2013 M\u1ea1nh m\u1ebd b\u1ecb h\u00fat v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u1eeb h\u00f3a v\u0129nh vi\u1ec5n (v\u00ed d\u1ee5: s\u1eaft, niken, cobalt)<\/li>\n<\/ul>\n<p>Trong <strong>v\u1eadt li\u1ec7u s\u1eaft t\u1eeb<\/strong>, ch\u00fang t\u00f4i ph\u00e2n chia ch\u00fang th\u00e0nh <strong>v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/strong> v\u00e0 <strong>v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/strong> d\u1ef1a tr\u00ean \u0111\u1eb7c t\u00ednh t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef t\u1eeb c\u1ee7a ch\u00fang.<\/p>\n<h3>C\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh chung c\u1ea7n bi\u1ebft<\/h3>\n<p>M\u1ed7i v\u1eadt li\u1ec7u t\u1eeb c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd v\u00e0 t\u1eeb t\u00ednh ri\u00eang bi\u1ec7t quy\u1ebft \u0111\u1ecbnh c\u00e1ch ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 th\u1ea5m<\/strong> \u2013 Kh\u1ea3 n\u0103ng d\u1ec5 d\u00e0ng t\u1eeb h\u00f3a c\u1ee7a v\u1eadt li\u1ec7u<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb<\/strong> \u2013 Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb<\/li>\n<li><strong>\u0110\u1ed9 gi\u1eef t\u1eeb<\/strong> \u2013 T\u1eeb tr\u01b0\u1eddng c\u00f2n l\u1ea1i sau khi lo\u1ea1i b\u1ecf tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i<\/li>\n<li><strong>\u0110\u1ed9 t\u1eeb b\u00e3o h\u00f2a<\/strong> \u2013 M\u1ee9c t\u1eeb l\u1edbn nh\u1ea5t m\u00e0 m\u1ed9t v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 gi\u1eef \u0111\u01b0\u1ee3c<\/li>\n<li><strong>M\u1ea5t m\u1ebb do qu\u00e1n t\u00ednh t\u1eeb<\/strong> \u2013 N\u0103ng l\u01b0\u1ee3ng m\u1ea5t \u0111i trong chu k\u1ef3 t\u1eeb h\u00f3a v\u00e0 th\u00e1o t\u1eeb<\/li>\n<\/ul>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng, d\u00f9 l\u00e0 l\u00f5i bi\u1ebfn \u00e1p c\u1ea7n ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng th\u1ea5p hay nam ch\u00e2m v\u0129nh c\u1eedu ph\u1ea3i duy tr\u00ec t\u1eeb tr\u01b0\u1eddng m\u1ea1nh theo th\u1eddi gian.<\/p>\n<h2>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m l\u00e0 g\u00ec<\/h2>\n<p>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m l\u00e0 kim lo\u1ea1i ho\u1eb7c h\u1ee3p kim c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u1eeb h\u00f3a v\u00e0 th\u00e1o t\u1eeb. Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u thay \u0111\u1ed5i h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng th\u01b0\u1eddng xuy\u00ean, v\u1edbi t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u.<\/p>\n<h3>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/h3>\n<ul>\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng c\u01b0\u1ee1ng b\u1ee9c th\u1ea5p<\/strong> \u2013 c\u1ea7n \u00edt c\u00f4ng s\u1ee9c \u0111\u1ec3 t\u1eeb h\u00f3a ho\u1eb7c th\u00e1o t\u1eeb<\/li>\n<li><strong>\u0110\u1ed9 th\u1ea5m t\u1eeb cao<\/strong> \u2013 cho ph\u00e9p t\u1eeb tr\u01b0\u1eddng d\u1ec5 d\u00e0ng xuy\u00ean qua v\u1eadt li\u1ec7u<\/li>\n<li><strong>M\u1ea5t m\u1ebb do qu\u00e1n t\u00ednh t\u1eeb th\u1ea5p<\/strong> \u2013 \u00edt sinh nhi\u1ec7t v\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ecb l\u00e3ng ph\u00ed trong c\u00e1c chu k\u1ef3 t\u1eeb h\u00f3a<\/li>\n<\/ul>\n<h3>C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn<\/h3>\n<ul>\n<li><strong>Th\u00e9p silic<\/strong> \u2013 ph\u1ed5 bi\u1ebfn cho l\u00f5i bi\u1ebfn \u00e1p nh\u1edd t\u1ed5n th\u1ea5t th\u1ea5p<\/li>\n<li><strong>S\u1eaft<\/strong> \u2013 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, chi ph\u00ed th\u1ea5p, hi\u1ec7u su\u1ea5t t\u1eeb cao<\/li>\n<li><strong>Permalloy<\/strong> \u2013 h\u1ee3p kim niken- s\u1eaft c\u00f3 \u0111\u1ed9 th\u1ea5m t\u1eeb r\u1ea5t cao<\/li>\n<\/ul>\n<h3>Thu\u1ed9c t\u00ednh t\u1eeb<\/h3>\n<table>\n<thead>\n<tr>\n<th>Thu\u1ed9c t\u00ednh<\/th>\n<th>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 th\u1ea5m<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>M\u1ea5t m\u1ebb do qu\u00e1n t\u00ednh t\u1eeb<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>L\u01b0u gi\u1eef t\u1eeb tr\u01b0\u1eddng<\/td>\n<td>Y\u1ebfu (t\u1ea1m th\u1eddi)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 th\u00e0nh ph\u1ea7n<\/h3>\n<p>H\u1ea7u h\u1ebft c\u00e1c nam ch\u00e2m m\u1ec1m \u0111\u1ec1u \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng c\u00e1ch h\u1ee3p kim c\u00e1c kim lo\u1ea1i c\u01a1 b\u1ea3n nh\u01b0 s\u1eaft v\u1edbi silic, niken ho\u1eb7c c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n<ul>\n<li>Cu\u1ed9n v\u00e0 c\u00e1n l\u00e1 (cho th\u00e9p silic)<\/li>\n<li>C\u00f4ng ngh\u1ec7 ch\u1ebf t\u1ea1o b\u1eb1ng b\u1ed9t (cho c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u1eb7c bi\u1ec7t)<\/li>\n<li>X\u1eed l\u00fd nhi\u1ec7t \u1ee7 \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u1ea5u tr\u00fac h\u1ea1t v\u00e0 hi\u1ec7u su\u1ea5t t\u1eeb<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h3>\n<ul>\n<li><strong>Bi\u1ebfn \u00e1p \u0111i\u1ec7n<\/strong> \u2013 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n \u00e1p hi\u1ec7u qu\u1ea3 v\u1edbi t\u1ed5n th\u1ea5t th\u1ea5p<\/li>\n<li><strong>Cu\u1ed9n c\u1ea3m<\/strong> \u2013 \u0111\u1ec3 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c tr\u01b0\u1eddng t\u1eeb<\/li>\n<li><strong>\u0110\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/strong> \u2013 n\u01a1i c\u1ea7n chuy\u1ec3n \u0111\u1ed5i t\u1eeb nhanh ch\u00f3ng<\/li>\n<li><strong>Ch\u1ed1ng nhi\u1ec5u t\u1eeb<\/strong> \u2013 \u0111\u1ec3 ch\u1eb7n nhi\u1ec5u trong \u0111i\u1ec7n t\u1eed<\/li>\n<\/ul>\n<h3>L\u1ee3i \u00cdch<\/h3>\n<ul>\n<li>Hi\u1ec7u qu\u1ea3 cao trong \u1ee9ng d\u1ee5ng xoay chi\u1ec1u<\/li>\n<li>Ph\u00e1t sinh nhi\u1ec7t th\u1ea5p do t\u1ed5n th\u1ea5t t\u1ed1i thi\u1ec3u<\/li>\n<li>D\u1ec5 gia c\u00f4ng v\u00e0 t\u1ea1o h\u00ecnh theo nhu c\u1ea7u c\u1ee5 th\u1ec3<\/li>\n<\/ul>\n<h3>H\u1ea1n ch\u1ebf<\/h3>\n<ul>\n<li>Kh\u00f4ng th\u1ec3 gi\u1eef t\u1eeb t\u00ednh m\u00e0 kh\u00f4ng c\u00f3 tr\u01b0\u1eddng ngo\u00e0i<\/li>\n<li>Kh\u00f4ng ph\u00f9 h\u1ee3p cho nam ch\u00e2m v\u0129nh c\u1eedu<\/li>\n<li>Hi\u1ec7u su\u1ea5t c\u00f3 th\u1ec3 gi\u1ea3m \u1edf nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1p l\u1ef1c c\u01a1 h\u1ecdc<\/li>\n<\/ul>\n<h2>V\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng l\u00e0 g\u00ec<\/h2>\n<p>C\u00e1c v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1eef t\u1eeb t\u00ednh theo th\u1eddi gian. Ch\u00fang c\u00f3 <strong>\u0111\u1ed9 c\u1ea3n t\u1eeb cao<\/strong>, c\u00f3 ngh\u0129a l\u00e0 ch\u00fang ch\u1ed1ng l\u1ea1i vi\u1ec7c m\u1ea5t t\u1eeb t\u00ednh, v\u00e0 <strong>\u0111\u1ed9 gi\u1eef t\u1eeb cao<\/strong>, c\u00f3 ngh\u0129a l\u00e0 ch\u00fang gi\u1eef \u0111\u01b0\u1ee3c t\u1eeb tr\u01b0\u1eddng m\u1ea1nh ngay c\u1ea3 sau khi t\u1eeb tr\u01b0\u1eddng b\u00ean ngo\u00e0i b\u1ecb lo\u1ea1i b\u1ecf. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y khi\u1ebfn ch\u00fang l\u00fd t\u01b0\u1edfng \u0111\u1ec3 l\u00e0m <strong>nam ch\u00e2m v\u0129nh c\u1eedu<\/strong>.<\/p>\n<h3>C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m neodymium (NdFeB)<\/strong> \u2013 R\u1ea5t m\u1ea1nh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u1ed9ng c\u01a1, \u0111i\u1ec7n t\u1eed v\u00e0 xe \u0111i\u1ec7n.<\/li>\n<li><strong>Nam ch\u00e2m ferrite<\/strong> \u2013 Gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng, ch\u1ed1ng \u0103n m\u00f2n, d\u00f9ng trong loa v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed gia d\u1ee5ng.<\/li>\n<li><strong>Nam ch\u00e2m Alnico<\/strong> \u2013 Ch\u1ecbu nhi\u1ec7t, ph\u1ed5 bi\u1ebfn trong c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb \u00e2m thanh c\u1ed5 \u0111i\u1ec3n.<\/li>\n<\/ul>\n<h3>Thu\u1ed9c t\u00ednh t\u1eeb<\/h3>\n<table>\n<thead>\n<tr>\n<th>Thu\u1ed9c t\u00ednh<\/th>\n<th>V\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 th\u1ea5m t\u1eeb<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 gi\u1eef t\u1eeb<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>L\u01b0u gi\u1eef t\u1eeb tr\u01b0\u1eddng<\/td>\n<td>V\u0129nh vi\u1ec5n<\/td>\n<\/tr>\n<tr>\n<td>M\u1ea5t m\u1ebb do qu\u00e1n t\u00ednh t\u1eeb<\/td>\n<td>Cao h\u01a1n lo\u1ea1i m\u1ec1m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 th\u00e0nh ph\u1ea7n<\/h3>\n<p>Nam ch\u00e2m c\u1ee9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb <strong>h\u1ee3p kim c\u1ee7a kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm, s\u1eaft, coban, nh\u00f4m ho\u1eb7c ferrit bari<\/strong>.<br \/>\nC\u00e1c quy tr\u00ecnh bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>C\u00f4ng ngh\u1ec7 b\u1ed9t kim lo\u1ea1i<\/strong> (\u1ea5n v\u00e0 sinter)<\/li>\n<li><strong>\u0110\u00fac<\/strong> (ph\u1ed5 bi\u1ebfn cho alnico)<\/li>\n<li><strong>\u00c9p phun<\/strong> \u0111\u1ec3 t\u1ea1o h\u00ecnh t\u00f9y ch\u1ec9nh<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> trong \u0111\u1ed9ng c\u01a1, m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u<\/li>\n<li><strong>Loa v\u00e0 thi\u1ebft b\u1ecb \u00e2m thanh<\/strong> \u0111\u1ec3 ph\u00e1t ra \u00e2m thanh m\u1ea1nh m\u1ebd, \u1ed5n \u0111\u1ecbnh<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn<\/strong> trong h\u1ec7 th\u1ed1ng \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p<\/li>\n<li><strong>K\u1eb9p t\u1eeb, kh\u00f3a v\u00e0 thi\u1ebft b\u1ecb gi\u1eef ch\u1eb7t t\u1eeb<\/strong><\/li>\n<\/ul>\n<h3>L\u1ee3i \u00cdch<\/h3>\n<ul>\n<li>T\u1eeb tr\u01b0\u1eddng m\u1ea1nh \u0111\u1ec3 ph\u00f9 h\u1ee3p k\u00edch th\u01b0\u1edbc<\/li>\n<li>Tu\u1ed5i th\u1ecd d\u00e0i v\u1edbi hi\u1ec7u su\u1ea5t gi\u1ea3m thi\u1ec3u<\/li>\n<li>Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1eeb tr\u01b0\u1eddng t\u0129nh, l\u00e2u d\u00e0i<\/li>\n<\/ul>\n<h3>H\u1ea1n ch\u1ebf<\/h3>\n<ul>\n<li>Th\u00f4ng th\u01b0\u1eddng d\u1ec5 v\u1ee1 h\u01a1n c\u00e1c v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/li>\n<li>Chi ph\u00ed v\u1eadt li\u1ec7u cao h\u01a1n (\u0111\u1eb7c bi\u1ec7t l\u00e0 neodymium)<\/li>\n<li>C\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i<\/li>\n<\/ul>\n<h2>So s\u00e1nh tr\u1ef1c ti\u1ebfp V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m v\u00e0 c\u1ee9ng<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Soft_vs_Hard_Magnetic_Materials_Comparison_NS47pfb.webp\" alt=\"So s\u00e1nh V\u1eadt li\u1ec7u T\u1eeb m\u1ec1m v\u00e0 T\u1eeb c\u1ee9ng\" \/><\/p>\n<p>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m v\u00e0 c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng theo c\u00e1c c\u00e1ch kh\u00e1c nhau, ph\u00f9 h\u1ee3p cho c\u00e1c c\u00f4ng vi\u1ec7c c\u1ee5 th\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh c\u1ee7a ch\u00fang trong c\u00e1c l\u0129nh v\u1ef1c ch\u00ednh:<\/p>\n<h3>Hysteresis t\u1eeb v\u00e0 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m m\u1ec1m<\/strong> c\u00f3 <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng c\u01b0\u1ee1ng b\u1ee9c th\u1ea5p<\/strong>, ngh\u0129a l\u00e0 ch\u00fang d\u1ec5 magnetize v\u00e0 demagnetize. \u0110i\u1ec1u n\u00e0y gi\u00fap ch\u00fang c\u00f3 <strong>chu k\u1ef3 m\u1ea5t t\u1eeb h\u1eb9p<\/strong> v\u00e0 gi\u1ea3m l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><strong>Nam ch\u00e2m c\u1ee9ng<\/strong> c\u00f3 <strong>\u0111\u1ed9 c\u1ea3n t\u1eeb cao<\/strong>, do \u0111\u00f3 ch\u00fang ch\u1ed1ng m\u1ea5t t\u1eeb. <strong>Chu k\u1ef3 m\u1ea5t t\u1eeb r\u1ed9ng<\/strong> c\u00f3 ngh\u0129a l\u00e0 ch\u00fang gi\u1eef t\u1eeb tr\u01b0\u1eddng m\u1ea1nh theo th\u1eddi gian.<\/li>\n<\/ul>\n<h3>\u0110\u1ed9 th\u1ea5m t\u1eeb v\u00e0 t\u1eeb tr\u01b0\u1eddng b\u00e3o h\u00f2a<\/h3>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/strong> \u0111\u1ec1 ngh\u1ecb nhi\u1ec1u <strong>\u0111\u1ed9 th\u1ea5m t\u1eeb t\u1eeb cao h\u01a1n<\/strong>, cho ph\u00e9p ch\u00fang mang t\u1eeb tr\u01b0\u1eddng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<li><strong>V\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/strong> c\u00f3 \u0111\u1ed9 th\u1ea5m th\u1ea5p h\u01a1n nh\u01b0ng duy tr\u00ec <strong>\u0111\u1ed9 b\u00e3o h\u00f2a t\u1eeb l\u1edbn<\/strong>, r\u1ea5t quan tr\u1ecdng cho c\u00e1c tr\u01b0\u1eddng t\u1eeb m\u1ea1nh v\u00e0 b\u1ec1n v\u1eefng.<\/li>\n<\/ul>\n<h3>M\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t<\/h3>\n<ul>\n<li>Trong c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC), nam ch\u00e2m m\u1ec1m c\u00f3 <strong>m\u1ea5t m\u1ebb hysteresis v\u00e0 d\u00f2ng eddy th\u1ea5p<\/strong>, l\u00e0m cho ch\u00fang r\u1ea5t hi\u1ec7u qu\u1ea3.<\/li>\n<li>Nam ch\u00e2m c\u1ee9ng k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n trong c\u00e1c \u1ee9ng d\u1ee5ng AC nh\u01b0ng v\u01b0\u1ee3t tr\u1ed9i trong <strong>s\u1eed d\u1ee5ng \u1ed5n \u0111\u1ecbnh, tr\u01b0\u1eddng li\u00ean t\u1ee5c<\/strong> nh\u01b0 nam ch\u00e2m v\u0129nh c\u1eedu.<\/li>\n<\/ul>\n<h3>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m c\u1ee9ng<\/strong> duy tr\u00ec s\u1ee9c m\u1ea1nh t\u1eeb trong nhi\u1ec1u n\u0103m, ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>Nam ch\u00e2m m\u1ec1m<\/strong> m\u1ea5t t\u1eeb nhanh khi kh\u00f4ng c\u00f3 tr\u01b0\u1eddng ngo\u00e0i nh\u01b0ng \u1ed5n \u0111\u1ecbnh trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c nh\u01b0 bi\u1ebfn \u00e1p.<\/li>\n<\/ul>\n<h3>Chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/th>\n<th>V\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>V\u1eadt li\u1ec7u Ph\u1ed5 bi\u1ebfn<\/td>\n<td>Th\u00e9p silic, permalloy, s\u1eaft<\/td>\n<td>NdFeB, ferrit, alnico<\/td>\n<\/tr>\n<tr>\n<td>Chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4<\/td>\n<td>Th\u01b0\u1eddng th\u1ea5p h\u01a1n<\/td>\n<td>C\u00f3 th\u1ec3 cao h\u01a1n (ch\u1ee9a \u0111\u1ea5t hi\u1ebfm)<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 d\u1ee5ng<\/td>\n<td>Ph\u1ed5 bi\u1ebfn r\u1ed9ng r\u00e3i<\/td>\n<td>M\u1ed9t s\u1ed1 c\u00f3 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o ngu\u1ed3n cung \u0111\u1ea5t hi\u1ebfm<\/td>\n<\/tr>\n<tr>\n<td>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/td>\n<td>Bi\u1ebfn \u00e1p, \u0111\u1ed9ng c\u01a1, cu\u1ed9n c\u1ea3m<\/td>\n<td>Nam ch\u00e2m v\u0129nh c\u1eedu, c\u1ea3m bi\u1ebfn, loa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V\u1eadt li\u1ec7u t\u1eeb m\u1ec1m so v\u1edbi v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n \u2014 chuy\u1ec3n \u0111\u1ed5i nhanh v\u00e0 hi\u1ec7u qu\u1ea3, ho\u1eb7c t\u1eeb tr\u01b0\u1eddng v\u0129nh c\u1eedu l\u00e2u d\u00e0i.<\/p>\n<h2>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u t\u1eeb ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n<\/h2>\n<p>Vi\u1ec7c ch\u1ecdn gi\u1eefa <strong>v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/strong> v\u00e0 <strong>v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/strong> Th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch v\u00e0 n\u01a1i ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Trong th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam, ch\u00fang ta th\u1ea5y nhi\u1ec1u nhu c\u1ea7u kh\u00e1c nhau \u2014 t\u1eeb bi\u1ebfn \u00e1p hi\u1ec7u qu\u1ea3 cao \u0111\u1ebfn nam ch\u00e2m v\u0129nh c\u1eedu l\u00e2u d\u00e0i \u2014 v\u00e0 m\u1ed7i t\u00ecnh hu\u1ed1ng \u0111\u00f2i h\u1ecfi m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00e1c nhau.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t<\/h3>\n<p>Khi quy\u1ebft \u0111\u1ecbnh ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p, h\u00e3y xem x\u00e9t:<\/p>\n<ul>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/strong> \u2013 N\u00f3 c\u00f3 ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c th\u1ea5p kh\u00f4ng? Hi\u1ec7u su\u1ea5t t\u1eeb c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>Ti\u1ebfp x\u00fac m\u00f4i tr\u01b0\u1eddng<\/strong> \u2013 C\u00e2n nh\u1eafc \u0111\u1ed9 \u1ea9m, r\u1ee7i ro \u0103n m\u00f2n, v\u00e0 li\u1ec7u n\u00f3 d\u00f9ng trong nh\u00e0 hay ngo\u00e0i tr\u1eddi.<\/li>\n<li><strong>\u00c1p l\u1ef1c c\u01a1 h\u1ecdc<\/strong> \u2013 N\u00f3 c\u00f3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi rung l\u1eafc, s\u1ed1c ho\u1eb7c n\u00e9n kh\u00f4ng?<\/li>\n<li><strong>Hi\u1ec7u su\u1ea5t t\u1eeb y\u00eau c\u1ea7u<\/strong> \u2013 \u0110\u1ed1i v\u1edbi nam ch\u00e2m m\u1ec1m, t\u1eadp trung v\u00e0o \u0111\u1ed9 th\u1ea5m v\u00e0 t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng th\u1ea5p. \u0110\u1ed1i v\u1edbi nam ch\u00e2m c\u1ee9ng, ch\u00fa \u00fd \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb v\u00e0 \u0111\u1ed9 d\u01b0 t\u1eeb.<\/li>\n<li><strong>K\u1ef3 v\u1ecdng v\u1ec1 tu\u1ed5i th\u1ecd d\u1ecbch v\u1ee5<\/strong> \u2013 Nam ch\u00e2m c\u1ea7n duy tr\u00ec hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong bao l\u00e2u?<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5 t\u1eeb c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u00fang t\u00f4i ph\u1ee5c v\u1ee5<\/h3>\n<p>C\u00f4ng ty cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb cho kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam qua:<\/p>\n<ul>\n<li><strong>S\u1ea3n xu\u1ea5t v\u00e0 ph\u00e2n ph\u1ed1i \u0111i\u1ec7n n\u0103ng<\/strong> \u2013 Th\u00e9p silicon t\u1eeb m\u1ec1m cho bi\u1ebfn \u00e1p v\u00e0 cu\u1ed9n c\u1ea3m.<\/li>\n<li><strong>\u00d4 t\u00f4<\/strong> \u2013 Nam ch\u00e2m v\u0129nh c\u1eedu cho \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n v\u00e0 c\u1ea3m bi\u1ebfn.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/strong> \u2013 Nam ch\u00e2m ferrite cho loa v\u00e0 micro.<\/li>\n<li><strong>T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/strong> Nam ch\u00e2m ch\u00ednh x\u00e1c cho \u0111\u1ed9ng c\u01a1 v\u00e0 robot.<\/li>\n<\/ul>\n<h3>M\u1eb9o l\u00e0m vi\u1ec7c v\u1edbi NBAEM<\/h3>\n<p>Vi\u1ec7c ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c d\u1ec5 d\u00e0ng h\u01a1n khi b\u1ea1n l\u00e0m vi\u1ec7c ch\u1eb7t ch\u1ebd v\u1edbi nh\u00e0 cung c\u1ea5p c\u1ee7a m\u00ecnh:<\/p>\n<ul>\n<li><strong>Chia s\u1ebb \u0111\u1ea7y \u0111\u1ee7 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/strong> \u2013 Bao g\u1ed3m c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n, c\u01a1 kh\u00ed v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li><strong>Y\u00eau c\u1ea7u c\u00f4ng th\u1ee9c t\u00f9y ch\u1ec9nh<\/strong> \u2013 NBAEM c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh th\u00e0nh ph\u1ea7n ho\u1eb7c quy tr\u00ecnh ch\u1ebf bi\u1ebfn \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/li>\n<li><strong>H\u1ecfi v\u1ec1 nguy\u00ean m\u1eabu th\u1eed<\/strong> \u2013 Th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi cam k\u1ebft s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t.<\/li>\n<li><strong>Ki\u1ec3m tra ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/strong> \u2013 C\u00e1c ti\u00eau chu\u1ea9n ISO v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a NBAEM \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n.<\/li>\n<\/ul>\n<p>M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p t\u00f9y ch\u1ec9nh t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn \u2014 \u0111\u1eb7c bi\u1ec7t khi hi\u1ec7u su\u1ea5t, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u1ec1u quan tr\u1ecdng.<\/p>\n<h2>C\u00e1c \u0111\u1ed5i m\u1edbi v\u00e0 xu h\u01b0\u1edbng trong v\u1eadt li\u1ec7u t\u1eeb<\/h2>\n<p>V\u1eadt li\u1ec7u t\u1eeb \u0111ang ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, v\u1edbi c\u1ea3 <strong>v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/strong> v\u00e0 <strong>v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/strong> \u0111\u1ec1u th\u1ea5y nh\u1eefng c\u1ea3i ti\u1ebfn l\u1edbn. \u1ede ph\u00eda m\u1ec1m, c\u00e1c ti\u1ebfn b\u1ed9 trong th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111ang n\u00e2ng cao \u0111\u1ed9 t\u1eeb c\u1ee7a t\u1eeb, gi\u1ea3m t\u1ed5n th\u1ea5t l\u00f5i, v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea7n s\u1ed1 cao. \u0110\u1ed1i v\u1edbi nam ch\u00e2m c\u1ee9ng, c\u00e1c h\u1ee3p ch\u1ea5t \u0111\u1ea5t hi\u1ebfm m\u1edbi v\u00e0 h\u1ed7n h\u1ee3p ferrite \u0111ang t\u0103ng c\u01b0\u1eddng s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng \u0111\u1ed3ng th\u1eddi ch\u1ed1ng m\u1ea5t t\u1eeb, ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p><strong>C\u00e1c \u1ee8ng d\u1ee5ng M\u1edbi N\u1ed5i:<\/strong><\/p>\n<ul>\n<li><strong>Xe \u0111i\u1ec7n (EVs):<\/strong> Nam ch\u00e2m c\u1ee9ng hi\u1ec7u su\u1ea5t cao l\u00e0 ch\u00eca kh\u00f3a cho \u0111\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng, trong khi nam ch\u00e2m m\u1ec1m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng s\u1ea1c v\u00e0 \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t.<\/li>\n<li><strong>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o:<\/strong> M\u00e1y ph\u00e1t turbine gi\u00f3 d\u1ef1a v\u00e0o nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh m\u1ebd, v\u00e0 bi\u1ebfn t\u1ea7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi s\u1eed d\u1ee5ng l\u00f5i t\u1eeb m\u1ec1m \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng t\u1ed1t h\u01a1n.<\/li>\n<li><strong>\u0110i\u1ec7n t\u1eed:<\/strong> C\u00e1c b\u1ed9 ph\u1eadn t\u1eeb nh\u1ecf g\u1ecdn, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng \u0111ang th\u00fac \u0111\u1ea9y ti\u1ebfn b\u1ed9 trong c\u1ea3m bi\u1ebfn, loa, bi\u1ebfn \u00e1p v\u00e0 h\u1ec7 th\u1ed1ng s\u1ea1c kh\u00f4ng d\u00e2y.<\/li>\n<\/ul>\n<p>T\u1ea1i NBAEM, \u0111\u1ed5i m\u1edbi c\u00f3 ngh\u0129a l\u00e0 k\u1ebft h\u1ee3p khoa h\u1ecdc v\u1eadt li\u1ec7u hi\u1ec7n \u0111\u1ea1i v\u1edbi ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t. Ch\u00fang t\u00f4i h\u1ee3p t\u00e1c ch\u1eb7t ch\u1ebd v\u1edbi kh\u00e1ch h\u00e0ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh \u2014 d\u00f9 \u0111\u00f3 l\u00e0 s\u1ea3n xu\u1ea5t l\u00f5i bi\u1ebfn \u00e1p si\u00eau th\u1ea5p t\u1ed5n th\u1ea5t cho trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c nam ch\u00e2m v\u0129nh c\u1eedu c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao cho ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5. M\u1ecdi s\u1ea3n ph\u1ea9m \u0111\u1ec1u tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 tr\u1ea3i qua ki\u1ec3m tra nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t lu\u00f4n \u1ed5n \u0111\u1ecbnh theo th\u1eddi gian.<\/p>\n<h2>T\u1ea1i sao ch\u1ecdn NBAEM cho v\u1eadt li\u1ec7u t\u1eeb<\/h2>\n<p>Khi b\u1ea1n \u0111ang t\u00ecm ngu\u1ed3n cung \u1ee9ng <strong>v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m<\/strong> or <strong>v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng<\/strong>, b\u1ea1n c\u1ea7n nhi\u1ec1u h\u01a1n ch\u1ec9 m\u1ee9c gi\u00e1 c\u1ea1nh tranh\u2014b\u1ea1n c\u1ea7n hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady, ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p. \u0110\u00f3 l\u00e0 n\u01a1i NBAEM n\u1ed5i b\u1eadt.<\/p>\n<h3>Th\u00f4ng tin v\u1ec1 c\u00f4ng ty v\u00e0 chuy\u00ean m\u00f4n<\/h3>\n<p>NBAEM \u0111\u00e3 s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p c\u00e1c v\u1eadt li\u1ec7u t\u1eeb t\u00ednh trong h\u01a1n hai th\u1eadp k\u1ef7. Ch\u00fang t\u00f4i l\u00e0m vi\u1ec7c v\u1edbi kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam trong c\u00e1c ng\u00e0nh nh\u01b0 ph\u00e1t \u0111i\u1ec7n, \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, \u00f4 t\u00f4 v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o. C\u00e1c k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i hi\u1ec3u r\u00f5 c\u1ea3 <strong>nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> v\u00e0 <strong>h\u1ee3p kim t\u1eeb m\u1ec1m<\/strong>, v\u00ec v\u1eady ch\u00fang t\u00f4i c\u00f3 th\u1ec3 nhanh ch\u00f3ng ph\u00f9 h\u1ee3p v\u1edbi gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p cho b\u1ea1n.<\/p>\n<h3>Ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ch\u1ee9ng nh\u1eadn<\/h3>\n<p>Ch\u00fang t\u00f4i tu\u00e2n th\u1ee7 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t t\u1eeb vi\u1ec7c ch\u1ecdn nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ebfn ki\u1ec3m tra cu\u1ed1i c\u00f9ng. C\u00e1c v\u1eadt li\u1ec7u c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0 <strong>ISO 9001<\/strong> v\u00e0 <strong>tu\u00e2n th\u1ee7 RoHS<\/strong>, v\u00e0 ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 <strong>ki\u1ec3m tra \u0111\u1ed9 tr\u1ec5, \u0111\u1ed9 c\u01b0\u1ee1ng v\u00e0 \u0111\u1ed9 th\u1ea5m<\/strong> tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n.<\/p>\n<h3>Kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh<\/h3>\n<p>M\u1ed7i d\u1ef1 \u00e1n c\u00f3 y\u00eau c\u1ea7u ri\u00eang bi\u1ec7t, v\u00ec v\u1eady ch\u00fang t\u00f4i cung c\u1ea5p:<\/p>\n<ul>\n<li>H\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5p \u0111\u1ed9 t\u1eeb t\u00ednh t\u00f9y ch\u1ec9nh<\/li>\n<li>L\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p \u0111\u1ec3 ch\u1ed1ng nhi\u1ec7t v\u00e0 \u0103n m\u00f2n<\/li>\n<li>Thi\u1ebft k\u1ebf t\u1ed1i \u01b0u \u0111\u1ec3 gi\u1ea3m thi\u1ec3u m\u1ea5t n\u0103ng l\u01b0\u1ee3ng ho\u1eb7c t\u1ed1i \u0111a h\u00f3a c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/li>\n<\/ul>\n<h3>S\u1ea3n xu\u1ea5t b\u1ec1n v\u1eefng v\u00e0 h\u1ed7 tr\u1ee3<\/h3>\n<p>Ch\u00fang t\u00f4i \u0111\u1ea7u t\u01b0 v\u00e0o <strong>d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/strong>, gi\u1ea3m thi\u1ec3u ch\u1ea5t th\u1ea3i v\u00e0 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng. \u0110\u1ed9i ng\u0169 h\u1ed7 tr\u1ee3 t\u1eadp trung t\u1ea1i Vi\u1ec7t Nam c\u1ee7a ch\u00fang t\u00f4i l\u00e0m vi\u1ec7c tr\u1ef1c ti\u1ebfp v\u1edbi k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 mua h\u00e0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n, giao h\u00e0ng \u0111\u00fang h\u1ea1n v\u00e0 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 trong th\u1ef1c t\u1ebf.<\/p>\n<table>\n<thead>\n<tr>\n<th>L\u1ee3i th\u1ebf ch\u00ednh<\/th>\n<th>\u00dd ngh\u0129a \u0111\u1ed1i v\u1edbi b\u1ea1n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H\u01a1n 15 n\u0103m kinh nghi\u1ec7m<\/td>\n<td>B\u1eb1ng ch\u1ee9ng th\u00e0nh c\u00f4ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ee9ng nh\u1eadn ISO<\/td>\n<td>Ch\u1ea5t l\u01b0\u1ee3ng \u0111\u00e1ng tin c\u1eady, nh\u1ea5t qu\u00e1n<\/td>\n<\/tr>\n<tr>\n<td>Gia c\u00f4ng t\u00f9y ch\u1ec9nh<\/td>\n<td>C\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n<\/td>\n<\/tr>\n<tr>\n<td>Quy tr\u00ecnh th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/td>\n<td>Gi\u1ea3m d\u1ea5u ch\u00e2n carbon<\/td>\n<\/tr>\n<tr>\n<td>H\u1ed7 tr\u1ee3 \u0111\u1ecba ph\u01b0\u01a1ng<\/td>\n<td>Giao ti\u1ebfp d\u1ec5 d\u00e0ng v\u00e0 gi\u1ea3i ph\u00e1p nhanh h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>C\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh ph\u00e2n bi\u1ec7t v\u1eadt li\u1ec7u m\u1ec1m v\u00e0 c\u1ee9ng l\u00e0 g\u00ec<\/h3>\n<p>C\u00e1c v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m c\u00f3 <strong>kh\u1ea3 n\u0103ng ch\u1ed1ng c\u01b0\u1ee1ng b\u1ee9c th\u1ea5p<\/strong>, <strong>\u0111\u1ed9 th\u1ea5m t\u1eeb cao<\/strong>, v\u00e0 m\u1ea5t t\u1eeb t\u00ednh nhanh ch\u00f3ng khi tr\u01b0\u1eddng ngo\u00e0i b\u1ecb lo\u1ea1i b\u1ecf. C\u00e1c v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng c\u00f3 <strong>\u0111\u1ed9 c\u1ea3n t\u1eeb cao<\/strong>, <strong>\u0111\u1ed9 gi\u1eef t\u1eeb cao<\/strong>, v\u00e0 gi\u1eef t\u1eeb t\u00ednh m\u1ea1nh trong th\u1eddi gian d\u00e0i. Nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y khi\u1ebfn nam ch\u00e2m m\u1ec1m ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng tr\u01b0\u1eddng t\u1ea1m th\u1eddi (nh\u01b0 bi\u1ebfn \u00e1p), v\u00e0 nam ch\u00e2m c\u1ee9ng l\u00fd t\u01b0\u1edfng cho s\u1eed d\u1ee5ng nam ch\u00e2m v\u0129nh vi\u1ec5n.<\/p>\n<h3>Li\u1ec7u v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng kh\u00f4ng<\/h3>\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, kh\u00f4ng. C\u00e1c kh\u00e1c bi\u1ec7t xu\u1ea5t ph\u00e1t t\u1eeb <strong>th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u<\/strong> v\u00e0 <strong>c\u1ea5u tr\u00fac vi m\u00f4<\/strong>, \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. X\u1eed l\u00fd nhi\u1ec7t v\u00e0 h\u1ee3p kim c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh, nh\u01b0ng m\u1ed9t v\u1eadt li\u1ec7u m\u1ec1m th\u1ef1c s\u1ef1 kh\u00f4ng th\u1ec3 \u0111\u01a1n gi\u1ea3n \u201cbi\u1ebfn th\u00e0nh\u201d v\u1eadt li\u1ec7u c\u1ee9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u00e1i ch\u1ebf l\u1edbn.<\/p>\n<h3>C\u00e1c thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m v\u00e0 c\u1ee9ng<\/h3>\n<p>C\u1ea3 hai lo\u1ea1i \u0111\u1ec1u m\u1ea5t \u0111\u1ed9 t\u1eeb khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean, nh\u01b0ng nam ch\u00e2m c\u1ee9ng c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i <strong>m\u1ea5t m\u00e1t kh\u00f4ng th\u1ec3 ph\u1ee5c h\u1ed3i<\/strong> n\u1ebfu qu\u00e1 nhi\u1ec7t v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 Curie c\u1ee7a ch\u00fang. C\u00e1c nam ch\u00e2m m\u1ec1m th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh h\u01a1n d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i nh\u01b0ng v\u1eabn c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n m\u1ee9c m\u1ea5t m\u00e1t cao h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t.<\/p>\n<h3>Tu\u1ed5i th\u1ecd \u0111i\u1ec3n h\u00ecnh c\u1ee7a v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m v\u00e0 c\u1ee9ng l\u00e0 bao l\u00e2u<\/h3>\n<p>Nam ch\u00e2m m\u1ec1m, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u0111\u1ed9ng c\u01a1 v\u00e0 bi\u1ebfn \u00e1p, c\u00f3 th\u1ec3 k\u00e9o d\u00e0i h\u00e0ng th\u1eadp k\u1ef7 n\u1ebfu kh\u00f4ng b\u1ecb qu\u00e1 nhi\u1ec7t ho\u1eb7c h\u01b0 h\u1ecfng c\u01a1 h\u1ecdc. Nam ch\u00e2m c\u1ee9ng c\u0169ng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i nhi\u1ec1u n\u0103m, m\u1eb7c d\u00f9 ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t, oxy h\u00f3a ho\u1eb7c tr\u01b0\u1eddng \u0111\u1ed1i l\u1eadp m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m y\u1ebfu ch\u00fang theo th\u1eddi gian. L\u1edbp ph\u1ee7 v\u00e0 l\u01b0u tr\u1eef ph\u00f9 h\u1ee3p gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd.<\/p>\n<h3>NBAEM \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m nh\u01b0 th\u1ebf n\u00e0o<\/h3>\n<p>NBAEM s\u1eed d\u1ee5ng <strong>ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t<\/strong>, bao g\u1ed3m ki\u1ec3m tra nguy\u00ean li\u1ec7u th\u00f4, quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m tra cu\u1ed1i c\u00f9ng v\u1ec1 hi\u1ec7u su\u1ea5t t\u1eeb tr\u01b0\u1eddng. S\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t ti\u00eau chu\u1ea9n <strong>qu\u1ed1c t\u1ebf<\/strong> (ISO, RoHS), v\u00e0 c\u00e1c v\u1eadt li\u1ec7u t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u \u0111\u1eb7c th\u00f9 c\u1ee7a kh\u00e1ch h\u00e0ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p tr\u00ean to\u00e0n Vi\u1ec7t Nam.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m v\u00e0 v\u1eadt li\u1ec7u t\u1eeb c\u1ee9ng, \u0111\u1eb7c t\u00ednh, \u1ee9ng d\u1ee5ng v\u00e0 m\u1eb9o l\u1ef1a ch\u1ecdn<\/p>","protected":false},"author":1,"featured_media":2033,"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-2034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/Soft_Magnetic_Materials_vs_Hard_Magnetic_Materials.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2034","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=2034"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2034\/revisions"}],"predecessor-version":[{"id":2039,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2034\/revisions\/2039"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2033"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=2034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=2034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=2034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}