{"id":3405,"date":"2025-11-21T08:09:13","date_gmt":"2025-11-21T08:09:13","guid":{"rendered":"https:\/\/nbaem.com\/?p=3405"},"modified":"2025-11-21T02:39:43","modified_gmt":"2025-11-21T02:39:43","slug":"magnet-in-magnetic-drive-pump","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/magnet-in-magnetic-drive-pump\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 nam ch\u00e2m trong B\u01a1m M\u00e0ng \u0110\u1ea9y T\u1eeb, Ch\u1ea5t li\u1ec7u, Hi\u1ec7u su\u1ea5t v\u00e0 L\u1ef1a ch\u1ecdn"},"content":{"rendered":"<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb tr\u01b0\u1eddng: Vai tr\u00f2 trung t\u00e2m c\u1ee7a nam ch\u00e2m<\/h2>\n<p>C\u00e1c b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb tr\u01b0\u1eddng (b\u01a1m mag-drive) d\u1ef1a ch\u1ee7 y\u1ebfu v\u00e0o nam ch\u00e2m \u0111\u1ec3 truy\u1ec1n m\u00f4-men xo\u1eafn m\u00e0 kh\u00f4ng c\u1ea7n ni\u00eam phong tr\u1ee5c v\u1eadt l\u00fd. Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i li\u00ean quan \u0111\u1ebfn <strong>hai v\u00f2ng nam ch\u00e2m<\/strong>: m\u1ed9t v\u00f2ng ngo\u00e0i <strong>nam ch\u00e2m truy\u1ec1n \u0111\u1ed9ng<\/strong> k\u1ebft n\u1ed1i v\u1edbi tr\u1ee5c \u0111\u1ed9ng c\u01a1, v\u00e0 m\u1ed9t v\u00f2ng trong <strong>nam ch\u00e2m b\u1ecb truy\u1ec1n \u0111\u1ed9ng<\/strong> g\u1eafn tr\u00ean rotor c\u1ee7a b\u01a1m. C\u00e1c v\u00f2ng n\u00e0y c\u0103n ch\u1ec9nh qua m\u1ed9t <strong>v\u1ecf ch\u1ee9a kh\u00f4ng kim lo\u1ea1i<\/strong>, gi\u00fap c\u00e1ch ly ch\u1ea5t l\u1ecfng kh\u1ecfi \u0111\u1ed9ng c\u01a1 trong khi truy\u1ec1n m\u00f4-men xo\u1eafn b\u1eb1ng t\u1eeb tr\u01b0\u1eddng.<\/p>\n<h3>Truy\u1ec1n m\u00f4-men xo\u1eafn qua c\u00e1c v\u00f2ng nam ch\u00e2m<\/h3>\n<ul>\n<li><strong>V\u00f2ng nam ch\u00e2m ngo\u00e0i (truy\u1ec1n \u0111\u1ed9ng):<\/strong> G\u1eafn tr\u00ean tr\u1ee5c \u0111\u1ed9ng c\u01a1, t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb quay.<\/li>\n<li><strong>V\u00f2ng nam ch\u00e2m trong (b\u1ecb truy\u1ec1n \u0111\u1ed9ng):<\/strong> G\u1eafn v\u00e0o c\u00e1nh qu\u1ea1t c\u1ee7a b\u01a1m; quay \u0111\u1ed3ng b\u1ed9 nh\u1edd s\u1ef1 li\u00ean k\u1ebft t\u1eeb tr\u01b0\u1eddng.<\/li>\n<li>L\u1ef1c m\u00f4-men xo\u1eafn truy\u1ec1n qua <strong>m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp<\/strong>, lo\u1ea1i b\u1ecf c\u00e1c \u0111\u01b0\u1eddng r\u00f2 r\u1ec9 v\u00e0 cho ph\u00e9p ho\u1ea1t \u0111\u1ed9ng k\u00edn kh\u00ed.<\/li>\n<\/ul>\n<h3>V\u1ecf ch\u1ee9a v\u00e0 t\u1ed5n th\u1ea5t d\u00f2ng c\u1ea3m \u1ee9ng<\/h3>\n<p>V\u1ecf ch\u1ee9a, th\u01b0\u1eddng l\u00e0m b\u1eb1ng composite k\u1ef9 thu\u1eadt ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t <strong>r\u00e0o c\u1ea3n gi\u1eefa nam ch\u00e2m v\u00e0 ch\u1ea5t l\u1ecfng<\/strong>. Tuy nhi\u00ean, n\u00f3 ph\u1ea3i gi\u1ea3m thi\u1ec3u<span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/eddy-current-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong>d\u00f2ng eddy<\/strong><\/a><\/span>\u2014d\u00f2ng \u0111i\u1ec7n c\u1ea3m \u1ee9ng c\u1ee5c b\u1ed9 do thay \u0111\u1ed5i t\u1eeb tr\u01b0\u1eddng t\u1ea1o ra sinh nhi\u1ec7t v\u00e0 gi\u1ea3m hi\u1ec7u qu\u1ea3.<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng v\u1ecf ch\u1ee9a<\/th>\n<th>M\u1ee5c \u0111\u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kh\u00f4ng kim lo\u1ea1i ho\u1eb7c kim lo\u1ea1i m\u1ecfng<\/td>\n<td>Gi\u1ea3m t\u1ed5n th\u1ea5t d\u00f2ng eddy<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ea5t li\u1ec7u ch\u1ecbu l\u1ef1c cao<\/td>\n<td>Ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c v\u00e0 c\u0103ng th\u1eb3ng<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ed1ng \u0103n m\u00f2n h\u00f3a h\u1ecdc<\/td>\n<td>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n ch\u1ea5t l\u1ecfng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>T\u1ed5n th\u1ea5t d\u00f2ng eddy<\/strong> t\u1ea1o nhi\u1ec7t t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi \u0111\u1ed9 d\u00e0y v\u1ecf v\u00e0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n\u2014thi\u1ebft k\u1ebf ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc v\u00e0 gi\u1ea3m thi\u1ec3u nhi\u1ec5u t\u1eeb tr\u01b0\u1eddng.<\/p>\n<h3>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h3>\n<table>\n<thead>\n<tr>\n<th>Tham s\u1ed1<\/th>\n<th>Gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh &amp; Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1eadt \u0111\u1ed9 l\u01b0u l\u01b0\u1ee3ng t\u1eeb<\/td>\n<td>0.5 \u0111\u1ebfn 1.2 Tesla (5.000\u201312.000 Gauss)<\/td>\n<\/tr>\n<tr>\n<td>Dung sai khe h\u1edf kh\u00f4ng kh\u00ed<\/td>\n<td>0.5 \u0111\u1ebfn 2 mm (quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u00f4-men xo\u1eafn v\u00e0 hi\u1ec7u qu\u1ea3)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4-men k\u00e9o ra<\/td>\n<td>M\u00f4-men t\u1ed1i \u0111a tr\u01b0\u1edbc khi t\u00e1ch t\u1eeb (thay \u0111\u1ed5i theo thi\u1ebft k\u1ebf nam ch\u00e2m)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li><strong>L\u01b0u l\u01b0\u1ee3ng t\u1eeb<\/strong> r\u1ea5t quan tr\u1ecdng; n\u00f3 quy\u1ebft \u0111\u1ecbnh m\u00f4-men xo\u1eafn t\u1ed1i \u0111a c\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc khe h\u1edf kh\u00f4ng kh\u00ed<\/strong> \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 gh\u00e9p t\u1eeb tr\u01b0\u1eddng: khe h\u1edf nh\u1ecf h\u01a1n c\u1ea3i thi\u1ec7n m\u00f4-men xo\u1eafn nh\u01b0ng c\u00f3 nguy c\u01a1 ti\u1ebfp x\u00fac c\u01a1 kh\u00ed.<\/li>\n<li><strong>M\u00f4-men xo\u1eafn k\u00e9o ra<\/strong>: m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh\u2014v\u01b0\u1ee3t qu\u00e1 s\u1ebd d\u1eabn \u0111\u1ebfn m\u1ea5t gh\u00e9p, g\u00e2y ra t\u00ecnh tr\u1ea1ng d\u1eebng b\u01a1m.<\/li>\n<\/ul>\n<hr \/>\n<p>Hi\u1ec3u r\u00f5 nh\u1eefng nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n n\u00e0y, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c (OEM) c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf nam ch\u00e2m, v\u1eadt li\u1ec7u v\u1ecf ch\u1ee9a, v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1eafp r\u00e1p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c b\u01a1m mag-drive \u0111\u00e1ng tin c\u1eady, hi\u1ec7u su\u1ea5t cao.<\/p>\n<h2>So s\u00e1nh v\u1eadt li\u1ec7u nam ch\u00e2m: NdFeB vs. SmCo vs. Alnico trong \u1ee9ng d\u1ee5ng Mag-Drive<\/h2>\n<p>Ch\u1ecdn v\u1eadt li\u1ec7u nam ch\u00e2m ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 c\u00e1c b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh nhanh v\u1ec1 ba lo\u1ea1i nam ch\u00e2m ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u1ee9ng d\u1ee5ng mag-drive:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Thu\u1ed9c t\u00ednh<\/strong><\/th>\n<th><strong>NdFeB (Neodymium)<\/strong><\/th>\n<th><strong>SmCo (Samari Cobalt)<\/strong><\/th>\n<th><strong>Alnico<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a<\/strong><\/td>\n<td>~120\u00b0C (\u0111\u1ebfn 180\u00b0C c\u1ea5p SH)<\/td>\n<td>250\u00b0C \u2013 350\u00b0C<\/td>\n<td>450\u00b0C<\/td>\n<\/tr>\n<tr>\n<td><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong><\/td>\n<td>Th\u1ea5p (c\u1ea7n l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7)<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>T\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/strong><\/td>\n<td>R\u1ea5t cao (\u0111\u1ed9 \u0111\u1eadm \u0111\u1eb7c flux cao nh\u1ea5t)<\/td>\n<td>Cao<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td><strong>Gi\u00e1 th\u00e0nh<\/strong><\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Cao h\u01a1n<\/td>\n<td>Th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/td>\n<td>B\u01a1m mag-drive chung, m\u00f4-men xo\u1eafn cao<\/td>\n<td>M\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao<\/td>\n<td>M\u00f4-men xo\u1eafn th\u1ea5p, \u1ee9ng d\u1ee5ng chuy\u00ean d\u1ee5ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>H\u1ec7 th\u1ed1ng ph\u1ee7: B\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi c\u00e1c nguy hi\u1ec3m<\/h3>\n<p>Nam ch\u00e2m NdFeB r\u1ea5t d\u1ec5 b\u1ecb \u0103n m\u00f2n, v\u00ec v\u1eady ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp <strong>NiCuNi (k\u1ec1n v\u00e0 \u0111\u1ed3ng k\u1ec1n) c\u1ed9ng v\u1edbi m\u1ed9t l\u1edbp epoxy<\/strong> l\u1edbp \u0111\u1ec3 b\u1ea3o v\u1ec7 th\u00eam. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ng\u1eeba oxy h\u00f3a v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m b\u00ean trong v\u1ecf ch\u1ee9a c\u1ee7a b\u01a1m.<\/p>\n<p>Trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t kh\u1eafc nghi\u1ec7t h\u01a1n, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c ch\u1ea5t l\u1ecfng axit ho\u1eb7c mu\u1ed1i: <strong>bao ph\u1ee7 Hastelloy<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. L\u1edbp ph\u1ee7 cao c\u1ea5p n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t v\u01b0\u1ee3t tr\u1ed9i v\u00e0 ph\u1ed5 bi\u1ebfn cho c\u00e1c nam ch\u00e2m SmCo ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<\/p>\n<h3>M\u1eb9o chuy\u00ean nghi\u1ec7p ch\u1ecdn nam ch\u00e2m theo m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t<\/h3>\n<ul>\n<li><strong>Ch\u1ea5t l\u1ecfng \u0103n m\u00f2n (axit, n\u01b0\u1edbc mu\u1ed1i):<\/strong> Ch\u1ecdn nam ch\u00e2m SmCo ho\u1eb7c NdFeB ph\u1ee7 Hastelloy.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 cao (&gt;150\u00b0C):<\/strong> SmCo l\u00e0 l\u00fd t\u01b0\u1edfng; xem x\u00e9t NdFeB lo\u1ea1i SH n\u1ebfu ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf.<\/li>\n<li><strong>S\u1eed d\u1ee5ng c\u00f4ng nghi\u1ec7p chung v\u1edbi m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac v\u1eeba ph\u1ea3i:<\/strong> NdFeB ti\u00eau chu\u1ea9n v\u1edbi NiCuNi + epoxy l\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/li>\n<li><strong>Nhu c\u1ea7u l\u1ef1c t\u1eeb th\u1ea5p:<\/strong> Alnico c\u00f3 th\u1ec3 \u0111\u1ee7 d\u00f9ng trong tr\u01b0\u1eddng h\u1ee3p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ecbu nhi\u1ec7t cao v\u01b0\u1ee3t tr\u1ed9i h\u01a1n l\u1ef1c t\u1eeb.<\/li>\n<\/ul>\n<p>\u0110\u1ed1i v\u1edbi b\u01a1m gh\u00e9p t\u1eeb t\u1eeb t\u00ednh, l\u1edbp ph\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft h\u1ee3p v\u1edbi v\u1eadt li\u1ec7u nam ch\u00e2m ph\u00f9 h\u1ee3p gi\u1ea3m thi\u1ec3u r\u1ee7i ro nh\u01b0 t\u1ed5n th\u1ea5t d\u00f2ng eddy v\u00e0 m\u1ea5t t\u1eeb t\u00ednh, \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd l\u00e2u d\u00e0i. \u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh th\u1ec3 hi\u1ec7n trong c\u00e1c thi\u1ebft k\u1ebf n\u00e0y, h\u00e3y xem h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-a-magnetic-moment\/\">\u0111i\u1ec3m t\u1eeb v\u00e0 m\u1eadt \u0111\u1ed9 flux<\/a>.<\/span><\/strong><\/p>\n<h2>Ti\u00eau ch\u00ed ch\u1ecdn nam ch\u00e2m ch\u00ednh cho b\u01a1m \u0111i\u1ec1u khi\u1ec3n t\u1eeb t\u00ednh<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m cho b\u01a1m \u0111i\u1ec1u khi\u1ec3n t\u1eeb t\u00ednh l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 tu\u1ed5i th\u1ecd l\u00e2u d\u00e0i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n xem x\u00e9t:<\/p>\n<h3>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u1ed3 th\u1ecb gi\u1ea3m c\u00f4ng su\u1ea5t<\/h3>\n<p>Nam ch\u00e2m m\u1ea5t l\u1ef1c khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, v\u00ec v\u1eady hi\u1ec3u r\u00f5 ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng l\u00e0 r\u1ea5t quan tr\u1ecdng. V\u00ed d\u1ee5, nam ch\u00e2m NdFeB cung c\u1ea5p m\u1eadt \u0111\u1ed9 flux t\u1eeb m\u1ea1nh nh\u01b0ng c\u1ea7n gi\u1ea3m c\u00f4ng su\u1ea5t khi v\u01b0\u1ee3t qu\u00e1 80\u00b0C, trong khi nam ch\u00e2m SmCo ch\u1ecbu \u0111\u01b0\u1ee3c t\u1edbi 250\u00b0C v\u1edbi t\u1ed5n th\u1ea5t \u00edt h\u01a1n. Lu\u00f4n ki\u1ec3m tra \u0111\u1ed3 th\u1ecb gi\u1ea3m c\u00f4ng su\u1ea5t c\u1ee7a t\u1eebng lo\u1ea1i nam ch\u00e2m \u0111\u1ec3 duy tr\u00ec truy\u1ec1n t\u1ea3i m\u00f4-men xo\u1eafn hi\u1ec7u qu\u1ea3.<\/p>\n<h3>B\u1ea3ng T\u01b0\u01a1ng Th\u00edch H\u00f3a H\u1ecdc v\u00e0 V\u1eadt Li\u1ec7u<\/h3>\n<p>M\u00f4i tr\u01b0\u1eddng c\u1ee7a nam ch\u00e2m c\u00f3 th\u1ec3 g\u00e2y \u0103n m\u00f2n ho\u1eb7c suy gi\u1ea3m. NdFeB nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 axit tr\u1eeb khi \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp NiCuNi k\u00e8m epoxy ho\u1eb7c \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i trong Hastelloy. SmCo c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi ngay t\u1eeb khi xu\u1ea5t x\u01b0\u1edfng, ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c ch\u1ea5t l\u1ecfng \u0103n m\u00f2n. S\u1eed d\u1ee5ng b\u1ea3ng t\u01b0\u01a1ng th\u00edch h\u00f3a h\u1ecdc \u0111\u1ec3 ph\u00f9 h\u1ee3p l\u1edbp ph\u1ee7 ho\u1eb7c v\u1eadt li\u1ec7u c\u1ee7a nam ch\u00e2m v\u1edbi ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh c\u1ee7a b\u01a1m c\u1ee7a b\u1ea1n.<\/p>\n<h3>Thi\u1ebft K\u1ebf M\u1ea1ch T\u1eeb<\/h3>\n<p>T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t nam ch\u00e2m li\u00ean quan \u0111\u1ebfn s\u1ed1 c\u1ef1c v\u00e0 h\u00ecnh d\u1ea1ng rotor ph\u00f9 h\u1ee3p. Nhi\u1ec1u c\u1ef1c h\u01a1n c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 m\u01b0\u1ee3t c\u1ee7a m\u00f4-men xo\u1eafn nh\u01b0ng ph\u1ee9c t\u1ea1p h\u01a1n trong s\u1ea3n xu\u1ea5t. C\u00e1c c\u00f4ng c\u1ee5 m\u00f4 ph\u1ecfng gi\u00fap \u0111\u00e1nh gi\u00e1 m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khe h\u1edf kh\u00f4ng kh\u00ed v\u00e0 t\u1ed5n th\u1ea5t d\u00f2ng xo\u00e1y \u0111\u1ec3 t\u00ecm ra thi\u1ebft k\u1ebf m\u1ea1ch t\u1eeb c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<h3>R\u1ee7i Ro \u00c1p L\u1ef1c C\u01a1 H\u1ecdc v\u00e0 M\u1ea5t T\u1eeb<\/h3>\n<p>Nam ch\u00e2m ph\u1ea3i ch\u1ecbu \u0111\u1ef1ng c\u00e1c l\u1ef1c c\u01a1 h\u1ecdc t\u1eeb rung l\u1eafc v\u00e0 va \u0111\u1eadp m\u00e0 kh\u00f4ng b\u1ecb n\u1ee9t ho\u1eb7c d\u1ecbch chuy\u1ec3n. Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, tr\u01b0\u1eddng ngo\u00e0i m\u1ea1nh ho\u1eb7c t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t t\u1eeb m\u1ed9t ph\u1ea7n. Ch\u1ecdn nam ch\u00e2m c\u00f3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 thi\u1ebft k\u1ebf v\u1ecf b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ed9 nam ch\u00e2m rotor.<\/p>\n<h3>Tu\u00e2n Th\u1ee7 Quy \u0110\u1ecbnh<\/h3>\n<p>M\u00e1y b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m y\u00eau c\u1ea7u c\u00e1c ch\u1ee9ng nh\u1eadn nh\u01b0 ATEX cho kh\u00ed d\u1ec5 ch\u00e1y n\u1ed5, FDA cho \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m ho\u1eb7c NSF cho n\u01b0\u1edbc u\u1ed1ng. \u0110\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u v\u00e0 l\u1edbp ph\u1ee7 c\u1ee7a nam ch\u00e2m c\u1ee7a b\u1ea1n \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ec3 gi\u1eef cho m\u00e1y b\u01a1m c\u1ee7a b\u1ea1n ph\u00f9 h\u1ee3p v\u00e0 an to\u00e0n.<\/p>\n<p>\u0110\u1ec3 c\u00f3 th\u00eam th\u00f4ng tin v\u1ec1 l\u1eafp r\u00e1p v\u00e0 thi\u1ebft k\u1ebf nam ch\u00e2m rotor, h\u00e3y xem t\u00e0i li\u1ec7u chi ti\u1ebft <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/introduction-to-rotor-magnet\/\">gi\u1edbi thi\u1ec7u v\u1ec1 nam ch\u00e2m rotor<\/a> <\/span><\/strong>ngu\u1ed3n cung c\u1ea5p bao g\u1ed3m c\u00e1c tham s\u1ed1 l\u1ef1a ch\u1ecdn c\u1ea7n thi\u1ebft v\u00e0 k\u1ef9 thu\u1eadt m\u00f4 ph\u1ecfng.<\/p>\n<h2>C\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn c\u1ee7a nam ch\u00e2m trong m\u00e1y b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb (&amp; C\u00e1ch ph\u00f2ng tr\u00e1nh)<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Magnetic_Drive_Pump_Magnet_Failures_Prevention_yDJ.webp\" alt=\"Ph\u00f2ng ng\u1eeba s\u1ef1 c\u1ed1 h\u1ecfng nam ch\u00e2m c\u1ee7a m\u00e1y b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb t\u00ednh\" \/><\/p>\n<p>\u1ea2nh t\u1eeb <a href=\"https:\/\/www.michael-smith-engineers.co.uk\/resources\/useful-info\/magnetic-couplings\" target=\"_blank\" rel=\"noopener\">k\u1ef9 s\u01b0-michael-smith\u00a0<\/a><\/p>\n<p>M\u00e1y b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb d\u1ef1a nhi\u1ec1u v\u00e0o nam ch\u00e2m c\u1ee7a ch\u00fang, nh\u01b0ng c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y c\u00f3 th\u1ec3 g\u1eb7p s\u1ef1 c\u1ed1 n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec \u0111\u00fang c\u00e1ch. C\u00e1c d\u1ea1ng h\u1ecfng ph\u1ed5 bi\u1ebfn bao g\u1ed3m <strong>\u0103n m\u00f2n<\/strong>, <strong>m\u1ea5t t\u1eeb nhi\u1ec7t<\/strong>, <strong>n\u1ee9t<\/strong>, <strong>oxy h\u00f3a<\/strong>, <strong>ng\u1eaft k\u1ebft n\u1ed1i<\/strong>, v\u00e0 <strong>nhi\u1ec7t d\u00f2ng xo\u00e1y<\/strong>. V\u00ed d\u1ee5, \u0103n m\u00f2n th\u01b0\u1eddng x\u1ea3y ra khi l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 m\u00f2n \u0111i, cho ph\u00e9p h\u00f3a ch\u1ea5t t\u1ea5n c\u00f4ng b\u1ec1 m\u1eb7t nam ch\u00e2m. M\u1ea5t t\u1eeb nhi\u1ec7t x\u1ea3y ra khi nam ch\u00e2m v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a c\u1ee7a ch\u00fang, khi\u1ebfn ch\u00fang m\u1ea5t kh\u1ea3 n\u0103ng t\u1eeb v\u0129nh vi\u1ec5n.<\/p>\n<p>Vi\u1ec7c n\u1ee9t v\u1ee1 v\u00e0 oxy h\u00f3a l\u00e0m y\u1ebfu \u0111i c\u1ea5u tr\u00fac c\u1ee7a nam ch\u00e2m v\u1ec1 m\u1eb7t c\u1ea5u tr\u00fac v\u00e0 t\u1eeb tr\u01b0\u1eddng, trong khi t\u00e1ch r\u1eddi \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ef1 t\u00e1ch bi\u1ec7t gi\u1eefa v\u00f2ng nam ch\u00e2m truy\u1ec1n \u0111\u1ed9ng v\u00e0 v\u00f2ng nam ch\u00e2m b\u1ecb truy\u1ec1n \u0111\u1ed9ng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c. Th\u00eam v\u00e0o \u0111\u00f3, nhi\u1ec7t sinh ra do d\u00f2ng eddy b\u00ean trong v\u1ecf ch\u1ee9a c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c \u0111i\u1ec3m n\u00f3ng c\u1ee5c b\u1ed9, l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m.<\/p>\n<h3>M\u1eb9o B\u1ea3o tr\u00ec Ph\u00f2ng ng\u1eeba:<\/h3>\n<ul>\n<li><strong>B\u1ea3n \u0111\u1ed3 Gauss:<\/strong> \u0110o l\u01b0\u1eddng \u0111\u1ecbnh k\u1ef3 m\u1eadt \u0111\u1ed9 d\u00f2ng t\u1eeb \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm m\u1ea5t s\u1ee9c m\u1ea1nh ho\u1eb7c \u0111i\u1ec3m n\u00f3ng.<\/li>\n<li><strong>Ph\u00e2n t\u00edch rung:<\/strong> Gi\u00e1m s\u00e1t c\u00e1c rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u0103ng th\u1eb3ng c\u01a1 h\u1ecdc v\u00e0 t\u00e1ch r\u1eddi nam ch\u00e2m.<\/li>\n<li><strong>Ki\u1ec3m tra l\u1edbp ph\u1ee7:<\/strong> Ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a l\u1edbp ph\u1ee7 nam ch\u00e2m \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n v\u00e0 oxy h\u00f3a.<\/li>\n<li><strong>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9:<\/strong> \u0110\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng n\u1eb1m trong c\u00e1c \u0111\u01b0\u1eddng cong gi\u1ea3m c\u00f4ng su\u1ea5t c\u1ee7a nam ch\u00e2m \u0111\u1ec3 tr\u00e1nh m\u1ea5t t\u1eeb nhi\u1ec7t.<\/li>\n<\/ul>\n<p>Gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a b\u01a1m. \u0110\u1ec3 bi\u1ebft th\u00eam c\u00e1c th\u00f4ng tin v\u1ec1 b\u1ea3o v\u1ec7 l\u1edbp ph\u1ee7 nam ch\u00e2m, xem h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 nam ch\u00e2m hi\u1ec7u qu\u1ea3 <a href=\"https:\/\/nbaem.com\/vi\/magnet-coating\/\" target=\"_blank\" rel=\"noopener\">h\u1ec7 th\u1ed1ng l\u1edbp ph\u1ee7 nam ch\u00e2m<\/a>.<\/p>\n<h2>Ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m hi\u1ec7u su\u1ea5t cao: Nh\u1eefng g\u00ec c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c (OEM) c\u1ea7n x\u00e1c minh<\/h2>\n<p>Khi cung c\u1ea5p nam ch\u00e2m cho b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c kh\u00f4ng th\u1ec3 b\u1ecf qua c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng. C\u00e1c ch\u1ee9ng nh\u1eadn nh\u01b0 <strong>ISO 9001<\/strong>, <strong>IATF 16949<\/strong>, v\u00e0 <strong>PPAP C\u1ea5p \u0111\u1ed9 3<\/strong> l\u00e0 b\u1eb1ng ch\u1ee9ng c\u1ea7n thi\u1ebft cho th\u1ea5y nh\u00e0 cung c\u1ea5p tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t. Nh\u1eefng ch\u1ee9ng nh\u1eadn n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a nam ch\u00e2m lu\u00f4n \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>C\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m l\u00e0 vi\u1ec7c ki\u1ec3m tra <strong>d\u00f2ng t\u1eeb tr\u01b0\u1eddng m\u1ed9t c\u00e1ch nghi\u00eam ng\u1eb7t<\/strong> \u0111\u1ec3 x\u00e1c minh \u0111\u1ed9 m\u1ea1nh v\u00e0 t\u00ednh \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a t\u1eebng nam ch\u00e2m. S\u1ef1 nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4 h\u00e0ng l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u2014 s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u00f3 th\u1ec3 g\u00e2y ra truy\u1ec1n t\u1ea3i m\u00f4-men xo\u1eafn kh\u00f4ng \u0111\u1ec1u ho\u1eb7c h\u1ecfng h\u00f3c s\u1edbm trong b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb tr\u01b0\u1eddng.<\/p>\n<p>C\u1ea9n th\u1eadn v\u1edbi c\u00e1c d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o ph\u1ed5 bi\u1ebfn t\u1eeb nh\u00e0 cung c\u1ea5p nh\u01b0 t\u00e0i li\u1ec7u m\u01a1 h\u1ed3, k\u1ebft qu\u1ea3 ki\u1ec3m tra kh\u00f4ng nh\u1ea5t qu\u00e1n ho\u1eb7c ch\u1eadm tr\u1ec5 trong truy xu\u1ea5t ngu\u1ed3n g\u1ed1c l\u00f4 h\u00e0ng. \u0110\u1ec3 d\u1ec5 d\u00e0ng h\u01a1n trong vi\u1ec7c ki\u1ec3m tra nh\u00e0 cung c\u1ea5p, h\u00e3y \u0111\u1eb7t ra 7 c\u00e2u h\u1ecfi quan tr\u1ecdng n\u00e0y:<\/p>\n<ul>\n<li>B\u1ea1n c\u00f3 cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 ch\u1ee9ng nh\u1eadn ph\u00f9 h\u1ee3p cho t\u1eebng l\u00f4 h\u00e0ng kh\u00f4ng?<\/li>\n<li>B\u1ea1n c\u00f3 ki\u1ec3m tra \u0111\u1ec1u \u0111\u1eb7n c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng v\u00e0 c\u01a1 h\u1ecdc kh\u00f4ng?<\/li>\n<li>Quy tr\u00ecnh c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n l\u00e0 g\u00ec?<\/li>\n<li>B\u1ea1n c\u00f3 th\u1ec3 chia s\u1ebb d\u1eef li\u1ec7u gi\u1ea3m c\u00f4ng su\u1ea5t v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec7t kh\u00f4ng?<\/li>\n<li>B\u1ea1n x\u1eed l\u00fd c\u00e1c s\u1ea3n ph\u1ea9m kh\u00f4ng ph\u00f9 h\u1ee3p nh\u01b0 th\u1ebf n\u00e0o?<\/li>\n<li>Nam ch\u00e2m c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u00e0 c\u00f3 s\u1ed1 s\u00ea-ri kh\u00f4ng?<\/li>\n<li>Kinh nghi\u1ec7m c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ea1t ch\u1ee9ng nh\u1eadn ATEX ho\u1eb7c NSF l\u00e0 g\u00ec?<\/li>\n<\/ul>\n<p>Vi\u1ec7c ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng n\u00e0y gi\u00fap b\u1ea3o v\u1ec7 ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i c\u1ee7a b\u01a1m v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro b\u1ea3o tr\u00ec. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 c\u00e1c lo\u1ea1i nam ch\u00e2m trong c\u00f4ng ngh\u1ec7 t\u1eeb tr\u01b0\u1eddng, h\u00e3y xem t\u00e0i nguy\u00ean chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1<span style=\"color: #ff6600;\"><strong> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/magnetic-materials-in-motor-technology\/\" target=\"_blank\" rel=\"noopener\">v\u1eadt li\u1ec7u t\u1eeb trong c\u00f4ng ngh\u1ec7 \u0111\u1ed9ng c\u01a1<\/a>.<\/strong><\/span><\/p>\n<h2>Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai: Nam ch\u00e2m ch\u1ecbu nhi\u1ec7t cao &amp; Kh\u00f4ng ch\u1ee9a \u0111\u1ea5t hi\u1ebfm<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a nam ch\u00e2m trong b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb tr\u01b0\u1eddng \u0111ang chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao h\u01a1n v\u00e0 gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm. NBAEM d\u1eabn \u0111\u1ea7u v\u1edbi c\u00e1c nam ch\u00e2m NdFeB lo\u1ea1i SH cao c\u1ea5p duy tr\u00ec t\u1eeb tr\u01b0\u1eddng m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 180\u00b0C, \u0111i\u1ec1u n\u00e0y l\u00e0 b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 cho c\u00e1c b\u01a1m ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t kh\u1eafc nghi\u1ec7t. C\u00f9ng v\u1edbi \u0111\u00f3, c\u00e1c s\u00e1ng ki\u1ebfn nh\u01b0 nam ch\u00e2m thay th\u1ebf Ce cung c\u1ea5p gi\u1ea3m l\u01b0\u1ee3ng \u0111\u1ea5t hi\u1ebfm m\u00e0 kh\u00f4ng m\u1ea5t hi\u1ec7u su\u1ea5t, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 chi ph\u00ed v\u00e0 chu\u1ed7i cung \u1ee9ng.<\/p>\n<p>M\u1ed9t xu h\u01b0\u1edbng ng\u00e0nh quan tr\u1ecdng kh\u00e1c l\u00e0 th\u00fac \u0111\u1ea9y c\u00e1c b\u1ed9 ph\u1eadn nam ch\u00e2m c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf. Khi t\u00ednh b\u1ec1n v\u1eefng tr\u1edf th\u00e0nh \u01b0u ti\u00ean, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u01b0u ti\u00ean c\u00e1c nam ch\u00e2m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u1ec5 d\u00e0ng thu h\u1ed3i v\u00e0 t\u00e1i s\u1eed d\u1ee5ng, gi\u1ea3m t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng trong khi v\u1eabn duy tr\u00ec hi\u1ec7u qu\u1ea3 c\u1ee7a b\u01a1m.<\/p>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng ai quan t\u00e2m kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m m\u1edbi nh\u1ea5t v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ea3i thi\u1ec7n v\u00e0 thi\u1ebft k\u1ebf th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, c\u00e1c ph\u00e1t tri\u1ec3n c\u1ee7a NBAEM l\u00e0m n\u1ed5i b\u1eadt b\u1ee9c tranh ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c nam ch\u00e2m cho b\u01a1m kh\u00f4ng c\u1ea7n ph\u1edbt.<\/p>\n<p><strong>C\u00e1c \u0111i\u1ec3m ch\u00ednh c\u1ea7n ch\u00fa \u00fd:<\/strong><\/p>\n<ul>\n<li><strong>Nam ch\u00e2m NdFeB lo\u1ea1i SH cao c\u1ea5p<\/strong> cho ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh \u1edf 180\u00b0C<\/li>\n<li><strong>Nam ch\u00e2m thay th\u1ebf Ce gi\u1ea3m \u0111\u1ea5t hi\u1ebfm<\/strong> cho ngu\u1ed3n cung \u1ee9ng ti\u1ebft ki\u1ec7m chi ph\u00ed, b\u1ec1n v\u1eefng<\/li>\n<li><strong>T\u1eadp trung v\u00e0o c\u00e1c b\u1ed9 ph\u1eadn nam ch\u00e2m c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf<\/strong> ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ee5c ti\u00eau ESG c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/li>\n<\/ul>\n<p>D\u1eabn \u0111\u1ea7u \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c ch\u1ecdn c\u00e1c nam ch\u00e2m \u0111\u00e1p \u1ee9ng c\u1ea3 c\u00e1c ti\u00eau chu\u1ea9n nhi\u1ec7t \u0111\u1ed9 kh\u1eaft khe v\u00e0 ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n, \u0111\u1ea3m b\u1ea3o m\u00e1y b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb t\u00ednh c\u1ee7a b\u1ea1n duy tr\u00ec hi\u1ec7u qu\u1ea3 v\u00e0 tu\u00e2n th\u1ee7 trong nh\u1eefng n\u0103m t\u1edbi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch nam ch\u00e2m trong b\u01a1m truy\u1ec1n \u0111\u1ed9ng t\u1eeb t\u00ednh \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng r\u00f2 r\u1ec9 v\u1edbi v\u1eadt li\u1ec7u t\u1ed1i \u01b0u, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n.<\/p>","protected":false},"author":1,"featured_media":3404,"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-3405","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\/Magnet_in_magnetic_drive_pump_OiVlFME11.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3405","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=3405"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3405\/revisions"}],"predecessor-version":[{"id":3431,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3405\/revisions\/3431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3404"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}