{"id":3468,"date":"2025-11-27T08:00:12","date_gmt":"2025-11-27T08:00:12","guid":{"rendered":"https:\/\/nbaem.com\/?p=3468"},"modified":"2025-11-26T07:03:23","modified_gmt":"2025-11-26T07:03:23","slug":"what-type-of-magnets-are-used-for-hdd-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-type-of-magnets-are-used-for-hdd-magnets\/","title":{"rendered":"Lo\u1ea1i nam ch\u00e2m n\u00e0o \u0111\u01b0\u1ee3c d\u00f9ng cho nam ch\u00e2m HDD"},"content":{"rendered":"<h2>Ki\u1ebfn tr\u00fac c\u1ee7a m\u1ed9t \u1ed5 c\u1ee9ng HDD: N\u01a1i nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2<\/h2>\n<p>B\u1ea1n c\u00f3 t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec l\u00e0m cho m\u1ed9t <a href=\"https:\/\/en.wikipedia.org\/wiki\/Hard_disk_drive#FORM-FACTORS\" target=\"_blank\" rel=\"noopener\"><strong>\u1ed5 \u0111\u0129a c\u1ee9ng (HDD)<\/strong><\/a> ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh? B\u00ean trong m\u1ed7i HDD, m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u1ee7 ch\u1ed1t l\u00e0m vi\u1ec7c h\u00e0i h\u00f2a \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 \u0111\u1ecdc d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t ph\u00e2n t\u00edch nhanh:<\/p>\n<ul>\n<li><strong>\u0110\u0129a quay:<\/strong> C\u00e1c \u0111\u0129a quay n\u00e0y l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n b\u1eb1ng t\u1eeb t\u00ednh.<\/li>\n<li><strong>\u0110\u1ea7u \u0111\u1ecdc\/ghi:<\/strong> C\u1ea3m bi\u1ebfn nh\u1ecf n\u1ed5i l\u00ean tr\u00ean b\u1ec1 m\u1eb7t \u0111\u0129a \u0111\u1ec3 \u0111\u1ecdc ho\u1eb7c ghi d\u1eef li\u1ec7u.<\/li>\n<li><strong>C\u00e1nh tay C\u01a1 c\u1ea5u:<\/strong> Di chuy\u1ec3n \u0111\u1ea7u \u0111\u1ecdc tr\u00ean c\u00e1c \u0111\u0129a v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u00e1ng kinh ng\u1ea1c.<\/li>\n<li><strong>\u0110\u1ed9ng c\u01a1 cu\u1ed9n gi\u1ecdng n\u00f3i (VCM):<\/strong> L\u1ef1c l\u01b0\u1ee3ng m\u1ea1nh \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1nh tay k\u00edch ho\u1ea1t.<\/li>\n<\/ul>\n<p>V\u00e0 b\u00e2y gi\u1edd, nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 \u1edf \u0111\u00e2u? B\u00ed m\u1eadt n\u1eb1m \u1edf <strong>b\u1ed9 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/strong>, c\u00e1i m\u00e0 s\u1eed d\u1ee5ng nam ch\u00e2m m\u1ea1nh, ch\u00ednh x\u00e1c, h\u00ecnh cung<a href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"> <strong>neodymium-iron-boron (NdFeB)<\/strong><\/span><\/a> nam ch\u00e2m. Nh\u1eefng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm n\u00e0y t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb necessary \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb \u0111\u1ea7u \u0111\u1ecdc\/ghi nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c tr\u00ean c\u00e1c \u0111\u0129a quay. C\u1ea5u h\u00ecnh cong \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u00fang kh\u1edbp v\u1edbi v\u00f2ng cung c\u1ee7a c\u00e1nh tay k\u00edch ho\u1ea1t, t\u1ed1i \u01b0u h\u00f3a l\u1ef1c t\u1eeb \u0111\u1ed3ng th\u1eddi ti\u1ebft ki\u1ec7m kh\u00f4ng gian b\u00ean trong \u1ed5 \u0111\u0129a.<\/p>\n<p>V\u1ecb tr\u00ed \u0111\u1eb7t nam ch\u00e2m n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ec1 hi\u1ec7u su\u1ea5t\u2014n\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ed9 tin c\u1eady. Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, m\u1ed7i mili gi\u00e2y v\u00e0 m\u1ed7i micromet \u0111\u1ec1u c\u00f3 \u00fd ngh\u0129a. Tr\u01b0\u1eddng t\u1eeb m\u1ea1nh \u0111\u1ea3m b\u1ea3o c\u00e1c chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ea7u m\u01b0\u1ee3t m\u00e0, gi\u00fap ng\u0103n ng\u1eeba l\u1ed7i d\u1eef li\u1ec7u v\u00e0 h\u1ecfng h\u00f3c c\u01a1 h\u1ecdc. V\u00ec v\u1eady, nh\u1eefng nam ch\u00e2m h\u00ecnh v\u00f2ng cung t\u00ed Hon \u1ea5y th\u1ea7m th\u00fac \u0111\u1ea9y tr\u00e1i tim c\u1ee7a HDD, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c an to\u00e0n v\u00e0 c\u00f3 th\u1ec3 truy c\u1eadp h\u00e0ng ng\u00e0y.<\/p>\n<h2>Lo\u1ea1i nam ch\u00e2m n\u00e0o cung c\u1ea5p s\u1ee9c m\u1ea1nh cho HDD c\u1ee7a b\u1ea1n? M\u1ed9t ph\u00e2n t\u00edch s\u00e2u<\/h2>\n<p>Nam ch\u00e2m HDD ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng <strong>nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm neodymium-iron-boron (NdFeB)<\/strong> v\u00ec ch\u00fang mang l\u1ea1i t\u1ef7 l\u1ec7 l\u1ef1c m\u1ea1nh so v\u1edbi k\u00edch th\u01b0\u1edbc. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 HDD c\u00f3 tr\u01b0\u1eddng t\u1eeb m\u1ea1nh \u1edf d\u1ea1ng nh\u1ecf g\u1ecdn, thi\u1ebft y\u1ebfu cho \u0111\u1ecbnh v\u1ecb \u0111\u1ea7u ch\u00ednh x\u00e1c v\u00e0 truy c\u1eadp d\u1eef li\u1ec7u nhanh ch\u00f3ng.<\/p>\n<h3>C\u00e1c m\u1ee9c NdFeB ph\u1ed5 bi\u1ebfn trong HDD<\/h3>\n<table>\n<thead>\n<tr>\n<th>C\u1ea5p \u0111\u1ed9<\/th>\n<th>Kho\u1ea3ng c\u01b0\u1eddng \u0111\u1ed9<\/th>\n<th>Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>N35\u2013N52<\/td>\n<td>Th\u1ea5p \u0111\u1ebfn r\u1ea5t cao<\/td>\n<td>To\u00e0n b\u1ed9 ph\u1ea1m vi NdFeB<\/td>\n<\/tr>\n<tr>\n<td>N42\u2013N48<\/td>\n<td>Ti\u00eau chu\u1ea9n ng\u00e0nh<\/td>\n<td>H\u1ea7u h\u1ebft HDD s\u1eed d\u1ee5ng nh\u1eefng lo\u1ea1i n\u00e0y \u0111\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa s\u1ee9c m\u1ea1nh v\u00e0 chi ph\u00ed<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u01b0\u1ee3c pha th\u00eam terbium<\/td>\n<td>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t t\u1ed1t h\u01a1n<\/td>\n<td>Kh\u1ea3 n\u0103ng x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n b\u00ean trong \u1ed5 \u0111\u0129a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Vi\u1ec7c pha terbium c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t, quan tr\u1ecdng v\u00ec HDD ho\u1ea1t \u0111\u1ed9ng t\u1eeb kho\u1ea3ng -40\u00b0C \u0111\u1ebfn 80\u00b0C.<\/p>\n<h3>So s\u00e1nh c\u00e1c lo\u1ea1i nam ch\u00e2m HDD<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>NdFeB<\/strong><\/td>\n<td>M\u1ea1nh nh\u1ea5t, nh\u1ecf g\u1ecdn, chi ph\u00ed hi\u1ec7u qu\u1ea3<\/td>\n<td>D\u1ec5 \u0103n m\u1ecfng \u0103n m\u1ecf, \u0111\u01b0\u1ee3c ph\u1ee7 b\u1ea3o v\u1ec7<\/td>\n<\/tr>\n<tr>\n<td><strong>Samari-Coban (SmCo)<\/strong><\/td>\n<td>Kh\u00e1ng nhi\u1ec7t \u0111\u1ed9 cao, kh\u00e1ng \u0103n m\u00f2n t\u1ed1t<\/td>\n<td>\u0110\u1eaft h\u01a1n, y\u1ebfu h\u01a1n c\u00e1c grades NdFeB h\u00e0ng \u0111\u1ea7u<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1eaft ferrit<\/strong><\/td>\n<td>Chi ph\u00ed th\u1ea5p, ch\u1ed1ng \u0103n m\u00f2n<\/td>\n<td>Y\u1ebfu h\u01a1n nhi\u1ec1u, k\u00edch th\u01b0\u1edbc l\u1edbn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>M\u1eb7c d\u00f9 nam ch\u00e2m SmCo ch\u1ecbu nhi\u1ec7t v\u00e0 \u0103n m\u00f2n t\u1ed1t, nam ch\u00e2m NdFeB chi\u1ebfm \u01b0u th\u1ebf nh\u1edd m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i. Nam ch\u00e2m ferrite ph\u1ea7n l\u1edbn \u0111\u00e3 l\u1ed7i th\u1eddi cho s\u1eed d\u1ee5ng trong HDD.<\/p>\n<h3>H\u01b0\u1edbng t\u1eeb h\u00f3a v\u00e0 Hi\u1ec7u su\u1ea5t HDD<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m b\u00e1n k\u00ednh:<\/strong> Nam ch\u00e2m quanh chu vi v\u00f2ng cung, cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb \u0111\u1ed3ng nh\u1ea5t cho \u0111i\u1ec1u khi\u1ec3n c\u01a1 c\u1ea5u khu\u1ebfch \u0111\u1ea1i m\u01b0\u1ee3t m\u00e0.<\/li>\n<li><strong>Nam ch\u00e2m tr\u1ee5c:<\/strong> Nam ch\u00e2m xuy\u00ean qua \u0111\u1ed9 d\u00e0y c\u1ee7a nam ch\u00e2m \u2013 \u00edt d\u00f9ng h\u01a1n nh\u01b0ng h\u1eefu \u00edch \u1edf m\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf VCM.<\/li>\n<\/ul>\n<p>H\u01b0\u1edbng magnetization \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch motor cu\u1ed9n \u00e2m thanh (VCM) ph\u1ea3n h\u1ed3i, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a HDD. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng t\u00f9y ch\u1ec9nh \u0111i\u1ec1u n\u00e0y d\u1ef1a tr\u00ean m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf \u1ed5 \u0111\u0129a.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1ch nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c c\u01a1 ch\u1ebf ch\u00ednh x\u00e1c nh\u01b0 robot v\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng, h\u00e3y xem c\u00e1c ph\u00e2n t\u00edch v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/magnetic-actuators-for-robotic-mobility\/\" target=\"_blank\" rel=\"noopener\">b\u1ed9 truy\u1ec1n \u0111\u1ed9ng t\u1eeb t\u00ednh cho c\u01a1 \u0111\u1ed9ng robot<\/a>.<\/p>\n<hr \/>\n<p>Ph\u00e2n t\u00edch n\u00e0y gi\u1ea3i th\u00edch t\u1ea1i sao nam ch\u00e2m NdFeB l\u1ea1i l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho HDD, c\u00e2n b\u1eb1ng k\u00edch th\u01b0\u1edbc, c\u00f4ng su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady.<\/p>\n<h2>S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a nam ch\u00e2m HDD: T\u1eeb Ferrite \u0111\u1ebfn rare earth hi\u1ec7u su\u1ea5t cao<\/h2>\n<p>Nam ch\u00e2m HDD \u0111\u00e3 c\u00f3 m\u1ed9t ch\u1eb7ng \u0111\u01b0\u1eddng d\u00e0i k\u1ec3 t\u1eeb nh\u1eefng n\u0103m 1950. C\u00e1c HDD \u0111\u1ea7u ti\u00ean d\u1ef1a v\u00e0o nam ch\u00e2m ferrite c\u1ed3ng k\u1ec1nh, n\u1eb7ng v\u00e0 c\u00f3 gi\u1edbi h\u1ea1n v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9, h\u1ea1n ch\u1ebf m\u1eadt \u0111\u1ed9 l\u01b0u tr\u1eef v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u1ebfn th\u1eadp ni\u00ean 1980, m\u1ed9t s\u1ef1 chuy\u1ec3n \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 \u0111\u00e3 x\u1ea3y ra v\u1edbi s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a nam ch\u00e2m neodymium-iron-boron (NdFeB). Nh\u1eefng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm n\u00e0y c\u00f3 t\u1ec9 l\u1ec7 c\u01b0\u1eddng \u0111\u1ed9 tr\u00ean k\u00edch th\u01b0\u1edbc cao h\u01a1n nhi\u1ec1u, cho ph\u00e9p c\u00e1c nam ch\u00e2m c\u00e1nh h\u00e0nh \u0111\u1ed9ng nh\u1ecf h\u01a1n, m\u1ea1nh m\u1ebd h\u01a1n gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c d\u1eef li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5 \u0111\u0129a.<\/p>\n<p>S\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 kh\u00e1ng t\u1eeb l\u1edbn (GMR) v\u00e0 ghi t\u1eeb vu\u00f4ng g\u00f3c (PMR) v\u00e0o nh\u1eefng n\u0103m 1990 v\u00e0 2000 \u0111\u00e3 \u0111\u1ea9y dung l\u01b0\u1ee3ng v\u00e0 t\u1ed1c \u0111\u1ed9 HDD l\u00ean cao h\u01a1n n\u1eefa. Nh\u1eefng \u0111\u1ed9t ph\u00e1 n\u00e0y \u0111\u00f2i h\u1ecfi nam ch\u00e2m m\u1ea1nh h\u01a1n v\u00e0 \u1ed5n \u0111\u1ecbnh h\u01a1n \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c c\u00e1c \u0111\u1ea7u \u0111\u1ecdc\/ghi tr\u00ean c\u00e1c \u0111\u01b0\u1eddng d\u1eef li\u1ec7u densely packed. Nam ch\u00e2m NdFeB \u0111\u00e3 tr\u1edf th\u00e0nh chu\u1ea9n c\u00f4ng nghi\u1ec7p nh\u1edd s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 tin c\u1eady d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh kh\u1eaft khe.<\/p>\n<p>V\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a \u1ed5 \u0111\u0129a th\u1ec3 r\u1eafn (SSDs), c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t HDD \u0111\u00e3 \u0111i\u1ec1u ch\u1ec9nh nam ch\u00e2m NdFeB cho vai tr\u00f2 trong c\u00e1c h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef lai v\u00e0 c\u00e1c \u1ed5 l\u01b0u tr\u1eef l\u01b0u tr\u1eef quy m\u00f4 l\u1edbn. M\u1eb7c d\u00f9 \u0111\u1ed1i m\u1eb7t v\u1edbi \u00e1p l\u1ef1c c\u1ea1nh tranh, HDD v\u1eabn \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u tr\u00ean to\u00e0n c\u1ea7u, d\u1ef1a v\u00e0o nam ch\u00e2m hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o cho tu\u1ed5i th\u1ecd v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>T\u1ea7m quan tr\u1ecdng c\u1ee7a Neodymium trong HDD ph\u1ea3n \u00e1nh xu h\u01b0\u1edbng s\u1eed d\u1ee5ng \u0111\u1ea5t hi\u1ebfm to\u00e0n c\u1ea7u \u2014 h\u00e0ng tri\u1ec7u kil\u00f4gam NdFeB \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t m\u1ed7i n\u0103m \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a ng\u00e0nh l\u01b0u tr\u1eef. S\u1ef1 ti\u1ebfn h\u00f3a t\u1eeb ferrite sang nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm \u0111\u00e1nh d\u1ea5u\u4e00\u4e2a y\u1ebfu t\u1ed1 then ch\u1ed1t trong c\u00e1ch c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef t\u1eeb hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 m\u1edf r\u1ed9ng quy m\u00f4 theo c\u00e1c th\u1eadp k\u1ef7. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn s\u00e2u h\u01a1n v\u1ec1 s\u1ee9c m\u1ea1nh c\u1ee7a nam ch\u00e2m neodymium \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean HDD v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 x\u1ebfp h\u1ea1ng s\u1ee9c m\u1ea1nh nam ch\u00e2m chi ti\u1ebft t\u1ea1i danh s\u00e1ch nam ch\u00e2m theo s\u1ee9c m\u1ea1nh c\u1ee7a NBAEM.<\/p>\n<h2>T\u1ea1i sao nam ch\u00e2m neodymium l\u1ea1i xu\u1ea5t s\u1eafc trong \u1ee9ng d\u1ee5ng HDD: S\u1ee9c m\u1ea1nh, Ch\u00ednh x\u00e1c v\u00e0 \u0110\u1ed9 b\u1ec1n<\/h2>\n<p>NdFeB nam ch\u00e2m neodymium-\u0111i\u1ebfu kim (NdFeB) l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho HDD nh\u1edd s\u1ee9c m\u1ea1nh v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u00e1ng k\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do ch\u00fang n\u1ed5i b\u1eadt:<\/p>\n<h3>C\u00e1c t\u00ednh n\u0103ng k\u1ef9 thu\u1eadt ch\u00ednh<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao<\/strong>: Ch\u62b5\u1ea3 vi\u1ec7c m\u1ea5t t\u1eeb t\u00ednh ngay c\u1ea3 d\u01b0\u1edbi t\u1eeb tr\u01b0\u1eddng m\u1ea1nh.<\/li>\n<li><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh khi rung \u0111\u1ed9ng<\/strong>- Gi\u1eef cho s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh \u1ed5n \u0111\u1ecbnh b\u1ea5t ch\u1ea5p b\u00e1nh HDD quay v\u00e0 t\u00e1c \u0111\u1ed9ng<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh r\u1ed9ng<\/strong>- Ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh \u1edf t\u1eeb -40\u00b0C \u0111\u1ebfn 80\u00b0C, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n d\u1eef li\u1ec7u trung t\u00e2m bi\u1ebfn \u0111\u1ed5i<\/li>\n<\/ul>\n<h3>\u0110i\u1ec3m n\u1ed5i b\u1eadt v\u1ec1 hi\u1ec7u su\u1ea5t<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>V\u00ed d\u1ee5\/L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>L\u1ef1c h\u00fat<\/td>\n<td>S\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh m\u1ea1nh \u1edf c\u00e1c v\u00f2ng cung nh\u1ecf \u0111\u1ec3 di chuy\u1ec3n b\u00e1nh rung h\u00e0nh \u0111\u1ed9ng ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng<\/td>\n<td>Cho ph\u00e9p motor cu\u1ed9n gi\u1ecdng n\u00f3i (VCM) ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u1edbi l\u01b0\u1ee3ng \u0111i\u1ec7n \u00edt h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>M\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t<\/td>\n<td>Cung c\u1ea5p s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i cho nam ch\u00e2m nh\u1ecf h\u01a1n, nh\u1eb9 h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m c\u1ef1c k\u1ef3 m\u1ea1nh<\/td>\n<td>D\u1ec5 \u0103n m\u00f2n (\u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng l\u1edbp ph\u1ee7)<\/td>\n<\/tr>\n<tr>\n<td>Ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u0111\u1ea7u \u0111\u1ecdc\/ghi<\/td>\n<td>Y\u00eau c\u1ea7u s\u1ea3n xu\u1ea5t c\u1ea9n th\u1eadn \u0111\u1ec3 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng<\/td>\n<\/tr>\n<tr>\n<td>B\u1ec1n khi ch\u1ecbu t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c<\/td>\n<td>\u0110\u1eaft h\u01a1n nam ch\u00e2m ferrite<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Nghi\u00ean c\u1ee9u \u0111i\u1ec3n h\u00ecnh NBAEM<\/h3>\n<p>NBAEM chuy\u00ean v\u1ec1 c\u00e1c b\u1ed9 gh\u00e9p nam ch\u00e2m NdFeB t\u00f9y ch\u1ec9nh d\u00e0nh cho \u1ed5 c\u1ee9ng HDD. C\u00e1c nam ch\u00e2m c\u1ee7a h\u1ecd k\u1ebft h\u1ee3p \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 l\u1edbp ph\u1ee7 ti\u00ean ti\u1ebfn m\u1edf r\u1ed9ng tu\u1ed5i th\u1ecd \u0111\u1ed3ng th\u1eddi ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t v\u00e0 m\u1ea5t hi\u1ec7u su\u1ea5t d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng kh\u1eafc nghi\u1ec7t. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o HDDs s\u1eed d\u1ee5ng nam ch\u00e2m NBAEM v\u1eadn h\u00e0nh \u0111\u00e1ng tin c\u1eady trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng quan tr\u1ecdng nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n<p>\u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn s\u00e2u h\u01a1n, NBAEM cung c\u1ea5p c\u00e1c t\u00e0i li\u1ec7u gi\u1ea3i th\u00edch c\u00e1ch nam ch\u00e2m NdFeB duy tr\u00ec s\u1ee9c m\u1ea1nh v\u00e0 kh\u00e1ng c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u1edbi v\u1eadt li\u1ec7u t\u1eeb t\u00ednh, nh\u01b0 \u0103n m\u00f2n <span style=\"color: #ff6600;\">(<a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/how-long-does-neodymium-magnets-last\/\" target=\"_blank\" rel=\"noopener\">nam ch\u00e2m neodymium t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c bao l\u00e2u<\/a> v\u00e0 <\/span><a href=\"https:\/\/nbaem.com\/vi\/can-magnet-rust\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\">r\u1ec9 s\u1eaft c\u1ee7a nam ch\u00e2m<\/span> <span style=\"color: #ff6600;\">ng\u0103n ng\u1eeba<\/span><\/a><span style=\"color: #ff6600;\">).<\/span><\/p>\n<p>Trong , nam ch\u00e2m NdFeB cung c\u1ea5p s\u1ee9c m\u1ea1nh l\u1edbn, \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 b\u1ec1n cho HDD trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thay th\u1ebf \u0111\u1ed1i v\u1edbi c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef t\u1eeb t\u00ednh hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2>Ngu\u1ed3n cung v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt: L\u1ef1a ch\u1ecdn nam ch\u00e2m HDD ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n<\/h2>\n<p>&nbsp;<\/p>\n<p>Khi ch\u1ecdn nam ch\u00e2m HDD, ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady h\u00e0ng \u0111\u1ea7u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn nhanh:<\/p>\n<table>\n<thead>\n<tr>\n<th>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<th>Kho\u1ea3ng gi\u00e1 \u0111i\u1ec3n h\u00ecnh<\/th>\n<th>T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>K\u00edch th\u01b0\u1edbc<\/strong><\/td>\n<td>\u0111\u1ed9 d\u00e0i cung 20\u201330 mm<\/td>\n<td>V\u1eeba v\u1eb7n v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n t\u00e1c v\u1ee5<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u1ea5p \u0111\u1ed9<\/strong><\/td>\n<td>NdFeB t\u1eeb N42 \u0111\u1ebfn N48<\/td>\n<td>C\u00e2n b\u1eb1ng gi\u1eefa s\u1ee9c m\u1ea1nh v\u00e0 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/td>\n<\/tr>\n<tr>\n<td><strong>L\u1edbp ph\u1ee7<\/strong><\/td>\n<td>Nickel, k\u1ebdm, epoxy<\/td>\n<td>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/td>\n<\/tr>\n<tr>\n<td><strong>Dung sai<\/strong><\/td>\n<td>\u00b10.05 mm<\/td>\n<td>\u0110\u1ea3m b\u1ea3o l\u1ef1c t\u1eeb \u0111\u1ed3ng nh\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ed3 magnets HDD ch\u1ea5t l\u01b0\u1ee3ng cao th\u01b0\u1eddng c\u00f3 ngu\u1ed3n t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t Trung Qu\u1ed1c \u0111\u00e1ng tin c\u1eady nh\u01b0 NBAEM, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi c\u00e1c nam ch\u00e2m NdFeB tinh khi\u1ebft cao v\u00e0 c\u00e1c ch\u1ee9ng nh\u1eadn nghi\u00eam ng\u1eb7t. H\u1ecd cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh nh\u01b0:<\/p>\n<ul>\n<li><strong>M\u1eabu t\u1eeb h\u00f3a:<\/strong> t\u1ecda tr\u1ee5c hay d\u1ecdc \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft k\u1ebf actuator kh\u00e1c nhau<\/li>\n<li><strong>B\u1ed9 gh\u00e9pHybrid:<\/strong> k\u1ebft h\u1ee3p nam ch\u00e2m v\u1edbi v\u1eadt li\u1ec7u t\u1eeb m\u1ec1m \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t<\/li>\n<li><strong>Gi\u1ea3m gi\u00e1 theo s\u1ed1 l\u01b0\u1ee3ng v\u00e0 gi\u00e1 c\u1ea3:<\/strong> ph\u1ee5c v\u1ee5 cho c\u00e1c OEM v\u00e0 ng\u01b0\u1eddi mua s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/li>\n<\/ul>\n<p>\u0110\u1ec3 tr\u00e1nh nh\u1eadp kh\u1ea9u k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng, h\u00e3y t\u00ecm nh\u00e0 cung c\u1ea5p c\u00f3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng minh b\u1ea1ch, b\u1eb1ng ch\u1ee9ng ch\u1ee9ng nh\u1eadn v\u00e0 tham chi\u1ebfu t\u00edch c\u1ef1c t\u1eeb ng\u00e0nh l\u01b0u tr\u1eef d\u1eef li\u1ec7u. C\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh c\u1ee7a NBAEM c\u0169ng bao g\u1ed3m l\u1edbp ph\u1ee7 ti\u00ean ti\u1ebfn v\u00e0 th\u00f4ng s\u1ed1 s\u1ea3n xu\u1ea5t ch\u1eb7t ch\u1ebd \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a tu\u1ed5i th\u1ecd v\u00e0 hi\u1ec7u qu\u1ea3 cho HDD c\u1ee7a b\u1ea1n.<\/p>\n<p>&nbsp;<\/p>\n<h2>Ngo\u00e0i khu v\u1ef1c L\u01b0u tr\u1eef: T\u00e1i s\u1eed d\u1ee5ng v\u00e0 C\u00e1c \u1ee9ng d\u1ee5ng s\u00e1ng t\u1ea1o cho nam ch\u00e2m HDD<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-403\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier.png\" alt=\"nh\u00e0 cung c\u1ea5p nam ch\u00e2m kh\u00f4ng \u0111\u1ec1u\" width=\"788\" height=\"638\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-177x142.png 177w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-200x162.png 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-300x243.png 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-400x324.png 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-600x486.png 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier-768x622.png 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/irregular-magnet-supplier.png 788w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><\/p>\n<p>Nam ch\u00e2m HDD, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i neodymium-iron-boron (NdFeB), l\u00e0 nhi\u1ec1u h\u01a1n m\u1ed9t th\u00e0nh ph\u1ea7n l\u01b0u tr\u1eef\u2014we c\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1ch s\u00e1ng t\u1ea1o khi b\u1ea1n khai th\u00e1c ch\u00fang. Vi\u1ec7c th\u00e1o an to\u00e0n nh\u1eefng nam ch\u00e2m m\u1ea1nh m\u1ebd n\u00e0y kh\u1ecfi HDD c\u0169 kh\u00e1 \u0111\u01a1n gi\u1ea3n n\u1ebfu b\u1ea1n c\u00f3 c\u00f4ng c\u1ee5 \u0111\u00fang. B\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t b\u1ed9 v\u00edt nh\u1ecf, k\u00ecm v\u00e0 g\u0103ng tay \u0111\u1ec3 b\u1ea3o v\u1ec7 ng\u00f3n tay kh\u1ecfi l\u1ef1c k\u00e9o m\u1ea1nh.<\/p>\n<p>Khi l\u1ea5y ra, nh\u1eefng nam ch\u00e2m HDD h\u00ecnh v\u00f2ng cung n\u00e0y c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 nhi\u1ec1u m\u1ee5c \u0111\u00edch thi\u1ebft th\u1ef1c:<\/p>\n<ul>\n<li><strong>Gi\u00e1 \u0111\u1ee1 d\u1ee5ng c\u1ee5 t\u1eeb t\u00ednh<\/strong> \u0111\u1ec3 s\u1eafp x\u1ebfp c\u00f4ng c\u1ee5 trong x\u01b0\u1edfng<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn robotics<\/strong> n\u01a1i c\u00e1c tr\u01b0\u1eddng t\u1eeb t\u00ednh ch\u00ednh x\u00e1c l\u00e0 thi\u1ebft y\u1ebfu<\/li>\n<li><strong>C\u00e1nh c\u1eeda l\u00f2 vi s\u00f3ng<\/strong>, b\u1eb1ng l\u1ef1c gi\u1eef \u0111\u00e1ng tin c\u1eady c\u1ee7a ch\u00fang cho c\u00e1c c\u01a1 ch\u1ebf an to\u00e0n<\/li>\n<\/ul>\n<p>T\u00ednh linh ho\u1ea1t c\u1ee7a nam ch\u00e2m NdFeB v\u01b0\u1ee3t l\u00ean tr\u00ean c\u00e1c d\u1ef1 \u00e1n DIY. S\u1ee9c m\u1ea1nh v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang l\u00e0m cho ch\u00fang c\u00f3 gi\u00e1 tr\u1ecb \u1edf c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n \u0111i\u1ec7n (EV), tua bin gi\u00f3 v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng.<\/p>\n<p>T\u1eeb quan \u0111i\u1ec3m m\u00f4i tr\u01b0\u1eddng, vi\u1ec7c t\u00e1i ch\u1ebf nam ch\u00e2m HDD gi\u00fap gi\u1ea3m r\u00e1c th\u1ea3i \u0111i\u1ec7n t\u1eed v\u00e0 gi\u1ea3m \u00e1p l\u1ef1c l\u00ean chu\u1ed7i cung \u1ee9ng \u0111\u1ea5t hi\u1ebfm. Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh t\u1eadp trung v\u00e0o vi\u1ec7c c\u1ee9u v\u00e0 t\u00e1i s\u1eed d\u1ee5ng nh\u1eefng nam ch\u00e2m n\u00e0y \u0111\u1ec3 th\u00fac \u0111\u1ea9y t\u00ednh b\u1ec1n v\u1eefng trong ng\u00e0nh c\u00f4ng ngh\u1ec7. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi quan t\u00e2m \u0111\u1ebfn h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc nam ch\u00e2m t\u00f9y ch\u1ec9nh ngo\u00e0i c\u00e1c \u1ee9ng d\u1ee5ng HDD c\u01a1 b\u1ea3n, NBAEM cung c\u1ea5p m\u1ed9t lo\u1ea1t t\u00f9y ch\u1ecdn.<\/p>\n<h2>\u0110\u1ea3m b\u1ea3o t\u01b0\u01a1ng lai cho c\u00f4ng ngh\u1ec7 HDD: Nam ch\u00e2m trong k\u1ef7 nguy\u00ean SSD v\u00e0 h\u01a1n th\u1ebf n\u1eefa<\/h2>\n<p>M\u1eb7c d\u00f9 SSD ti\u1ebfp t\u1ee5c chi\u1ebfm l\u0129nh th\u1ecb tr\u01b0\u1eddng, HDD v\u1eabn r\u1ea5t quan tr\u1ecdng cho l\u01b0u tr\u1eef quy m\u00f4 l\u1edbn v\u00e0 l\u01b0u tr\u1eef l\u01b0u tr\u1eef, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u AI. C\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 ghi ch\u00e9p t\u1eeb t\u00ednh t\u0103ng nhi\u1ec7t (HAMR) d\u1ef1a v\u00e0o nam ch\u00e2m c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u00e0 kh\u00f4ng gi\u1ea3m hi\u1ec7u su\u1ea5t. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi nam ch\u00e2m neodymium-iron-boron (NdFeB) m\u1ea1nh h\u01a1n v\u00e0 ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n, th\u00fac \u0111\u1ea9y c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed5i m\u1edbi h\u1ee3p kim t\u1ed3n t\u1ea1i l\u00e2u h\u01a1n d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<p>Chu\u1ed7i cung c\u1ea5p \u0111\u1ea5t hi\u1ebfm g\u1eb7p nhi\u1ec1u th\u00e1ch th\u1ee9c, nh\u01b0ng c\u00e1c c\u00f4ng ty nh\u01b0 NBAEM \u0111ang d\u1eabn \u0111\u1ea7u v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c h\u1ee3p kim ti\u00ean ti\u1ebfn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a nam ch\u00e2m theo th\u1eddi gian. Nh\u00ecn v\u1ec1 t\u01b0\u01a1ng lai, h\u1ec7 th\u1ed1ng HDD-SSD lai c\u00f3 kh\u1ea3 n\u0103ng tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n, k\u1ebft h\u1ee3p truy c\u1eadp nhanh v\u1edbi dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef r\u1ed9ng l\u1edbn, t\u1ea5t c\u1ea3 ph\u1ee5 thu\u1ed9c v\u00e0o nam ch\u00e2m hi\u1ec7u su\u1ea5t cao \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p mong mu\u1ed1n d\u1eabn \u0111\u1ea7u trong l\u01b0u tr\u1eef d\u1eef li\u1ec7u, l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c chuy\u00ean gia nh\u01b0 NBAEM \u0111\u1ea3m b\u1ea3o ti\u1ebfp c\u1eadn c\u00e1c b\u1ed9 l\u1eafp r\u00e1p neodymium t\u00f9y ch\u1ec9nh ti\u00ean ti\u1ebfn ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u t\u01b0\u01a1ng lai. Expertise c\u1ee7a h\u1ecd gi\u00fap \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1c h\u1ea1n ch\u1ebf \u0111\u1ea5t hi\u1ebfm trong khi t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf nam ch\u00e2m cho HDD th\u1ebf h\u1ec7 ti\u1ebfp theo v\u00e0 xa h\u01a1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 lo\u1ea1i nam ch\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nam ch\u00e2m HDD bao g\u1ed3m c\u00e1c lo\u1ea1i nam ch\u00e2m neodymium-iron-boron m\u1ea1nh v\u1edbi \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ee9c m\u1ea1nh cao.<\/p>","protected":false},"author":1,"featured_media":3467,"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-3468","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/HDD_neodymium_magnets_tqZjcqd0p.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3468","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=3468"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3468\/revisions"}],"predecessor-version":[{"id":3472,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3468\/revisions\/3472"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3467"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}