{"id":461,"date":"2022-06-15T14:46:30","date_gmt":"2022-06-15T14:46:30","guid":{"rendered":"https:\/\/nbaem.com\/?page_id=461"},"modified":"2025-09-09T07:02:00","modified_gmt":"2025-09-09T07:02:00","slug":"magnets-materials","status":"publish","type":"page","link":"https:\/\/nbaem.com\/vi\/magnets-materials\/","title":{"rendered":"V\u1eadt li\u1ec7u nam ch\u00e2m"},"content":{"rendered":"

V\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/h1><\/h1><\/div>

C\u00e1c s\u1ea3n ph\u1ea9m v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u0129nh c\u1eedu hi\u1ec7u su\u1ea5t cao c\u1ee7a NBAEM c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng, t\u1eeb \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n tr\u00ean t\u00e0u thuy\u1ec1n, m\u00e1y bay v\u00e0 ph\u01b0\u01a1ng ti\u1ec7n \u0111ua xe, \u0111\u1ebfn b\u1ed9 truy\u1ec1n \u0111\u1ed9ng b\u01a1m, pin, t\u1ea5m pin m\u1eb7t tr\u1eddi v\u00e0 thi\u1ebft b\u1ecb NMR. Th\u1ecb tr\u01b0\u1eddng \u0111a d\u1ea1ng c\u1ee7a ch\u00fang t\u00f4i gi\u00fap duy tr\u00ec c\u00f4ng ngh\u1ec7 lu\u00f4n d\u1eabn \u0111\u1ea7u trong \u0111\u1ed5i m\u1edbi s\u00e1ng t\u1ea1o. Vi\u1ec7c s\u1ea3n xu\u1ea5t v\u00e0 ch\u1ebf t\u1ea1o nam ch\u00e2m t\u00f9y ch\u1ec9nh c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o kh\u00e1ch h\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c s\u1ea3n ph\u1ea9m nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u thi\u1ebft k\u1ebf \u0111\u1eb7c th\u00f9 c\u1ee7a h\u1ecd.<\/p>\n<\/div>

<\/i><\/span><\/div>

Ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ea5p<\/h2><\/div><\/div><\/div>
<\/i><\/span><\/div>

M\u1eabu th\u1eed mi\u1ec5n ph\u00ed<\/h2><\/div><\/div><\/div>
<\/i><\/span><\/div>

\u0110\u1ed9i ng\u0169 b\u00e1n h\u00e0ng gi\u00e0u kinh nghi\u1ec7m<\/h2><\/div><\/div><\/div>
<\/i><\/span><\/div>

\u0110\u1ed9i ng\u0169 \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n<\/h2><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div>
<\/div>
<\/div><\/div>
<\/div><\/div><\/div>
<\/div>
<\/div>

<\/i>V\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/h2><\/h2><\/div><\/div><\/div>
\"v\u1eadt<\/a><\/span><\/div>

Nam ch\u00e2m Neodymium<\/h3><\/h3><\/div>

Nam ch\u00e2m Neodymium s\u1eaft boron (NdFeB), hay c\u00f2n g\u1ecdi l\u00e0 nam ch\u00e2m \u201cneo\u201d, mang l\u1ea1i n\u0103ng l\u01b0\u1ee3ng cao nh\u1ea5t trong c\u00e1c v\u1eadt li\u1ec7u ng\u00e0y nay v\u00e0 c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng, k\u00edch c\u1ee1 v\u00e0 c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau bao g\u1ed3m GBD. Nam ch\u00e2m neo c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u1ed9ng c\u01a1 hi\u1ec7u su\u1ea5t cao, \u0111\u1ed9ng c\u01a1 kh\u00f4ng ch\u1ed5i than DC, ph\u00e2n t\u00e1ch t\u1eeb, ch\u1ee5p c\u1ed9ng h\u01b0\u1edfng t\u1eeb, c\u1ea3m bi\u1ebfn v\u00e0 loa.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"nh\u00e0<\/a><\/span><\/div>

Nam Ch\u00e2m Li\u00ean K\u1ebft<\/h3><\/h3><\/div>

V\u1eadt li\u1ec7u nam ch\u00e2m li\u00ean k\u1ebft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb b\u1ed9t Ceramic, NdFeB ho\u1eb7c SmCo, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i nh\u1ef1a k\u1ebft d\u00ednh (Ma tr\u1eadn). Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00fac phun ho\u1eb7c \u00e9p li\u00ean k\u1ebft th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m ph\u1ee9c t\u1ea1p v\u1edbi k\u00edch th\u01b0\u1edbc ho\u00e0n ch\u1ec9nh. V\u1eadt li\u1ec7u nam ch\u00e2m li\u00ean k\u1ebft c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trung b\u00ecnh v\u00e0 ch\u1ecbu nhi\u1ec7t th\u1ea5p do v\u1eadt li\u1ec7u k\u1ebft d\u00ednh.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"nh\u00e0<\/a><\/span><\/div><\/div>

Nam Ch\u00e2m Cobalt Samarium<\/h3><\/h3><\/div>

Nam ch\u00e2m Cobalt Samari (c\u00f2n g\u1ecdi l\u00e0 nam ch\u00e2m SmCo), c\u1ef1c k\u1ef3 m\u1ea1nh m\u1ebd\u00a0nam ch\u00e2m v\u0129nh c\u1eedu<\/a>. Thu\u1ed9c h\u1ecd nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm, nam ch\u00e2m SmCo c\u00f3 \u0111\u1ed9 m\u1ea1nh t\u01b0\u01a1ng t\u1ef1 nam ch\u00e2m neodymium nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao h\u01a1n nhi\u1ec1u v\u00e0 \u0111\u1ed9 c\u01b0\u1ee1ng b\u1ee9c cao h\u01a1n. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean t\u1edbi 525\u00b0F (300\u00b0C). Ngo\u00e0i ra, ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb v\u00e0 ch\u1ed1ng \u0103n m\u00f2n r\u1ea5t cao.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>

\"nh\u00e0<\/a><\/span><\/div>

Nam Ch\u00e2m Alnico<\/h3><\/h3><\/div>

Nam ch\u00e2m Alnico \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u00f4m, niken, cobalt, s\u1eaft v\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c nh\u01b0 \u0111\u1ed3ng, titanium v\u00e0 l\u01b0u hu\u1ef3nh. Nam ch\u00e2m Alnico d\u1ec5 m\u1ea5t t\u1eeb, nh\u01b0ng ch\u1ed1ng oxy h\u00f3a t\u1ed1t. H\u1ee3p kim Alnico t\u1ea1o ra nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c magnet h\u00f3a \u0111\u1ec3 t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb m\u1ea1nh. Trong s\u1ed1 c\u00e1c lo\u1ea1i nam ch\u00e2m ph\u1ed5 bi\u1ebfn, ch\u1ec9 c\u00f3 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm nh\u01b0 neodymium v\u00e0 samari-cobalt l\u00e0 m\u1ea1nh h\u01a1n.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"nam<\/a><\/span><\/div>

Nam ch\u00e2m ferrite<\/h3><\/h3><\/div>

Nam ch\u00e2m Ferrite, c\u00f2n g\u1ecdi l\u00e0 Ceramic, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u2013 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong n\u01b0\u1edbc m\u00e0 kh\u00f4ng b\u1ecb \u0103n m\u00f2n. M\u1eb7c d\u00f9 kh\u00f4ng m\u1ea1nh b\u1eb1ng Nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm Neodymium (NdFeB), kh\u1ea3 n\u0103ng c\u01b0\u1ee1ng t\u1eeb cao v\u00e0 chi ph\u00ed th\u1ea5p khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Nam ch\u00e2m Ferrite c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Ceramic, Feroba Magnet v\u00e0 Nam ch\u00e2m C\u1ee9ng Ferrite.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"nh\u00e0<\/a><\/span><\/div>

Nam ch\u00e2m cao su<\/h3><\/h3><\/div>

Nam ch\u00e2m cao su, c\u00f2n g\u1ecdi l\u00e0 nam ch\u00e2m linh ho\u1ea1t, \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb b\u1ed9t ferrite ho\u1eb7c b\u1ed9t \u0111\u1ea5t hi\u1ebfm, pha tr\u1ed9n v\u1edbi cao su, nh\u1ef1a v\u00e0 c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c. Nam ch\u00e2m ph\u1ee7 cao su cung c\u1ea5p kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t v\u01b0\u1ee3t tr\u1ed9i b\u1eb1ng c\u00e1ch t\u0103ng ma s\u00e1t b\u1ec1 m\u1eb7t m\u00e0 kh\u00f4ng \u0111\u1ec3 l\u1ea1i v\u1ebft ho\u1eb7c tr\u1ea7y x\u01b0\u1edbc. L\u1edbp ph\u1ee7 cao su khi\u1ebfn c\u00e1c nam ch\u00e2m n\u00e0y l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 treo bi\u1ec3n qu\u1ea3ng c\u00e1o ngo\u00e0i tr\u1eddi, g\u1eafn camera ho\u1eb7c c\u1ea3m bi\u1ebfn.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>

<\/div>
<\/div><\/div>
<\/div><\/div><\/div>
<\/div><\/div><\/div>
\"nh\u00e0<\/a><\/span><\/div>

Nam Ch\u00e2m \u00c9p N\u00f3ng<\/h3><\/h3><\/div>

Nam ch\u00e2m Nd-Fe-B d\u1ea1ng n\u00f3ng \u00e9p c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao nh\u1edd c\u1ea5u tr\u00fac vi tinh th\u1ec3 nh\u1ecf v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng cao c\u1ee7a ch\u00fang, k\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1eb7c bi\u1ec7t t\u1ea1o ra c\u00e1c nam ch\u00e2m n\u00e0y. Nam ch\u00e2m n\u00f3ng \u00e9p l\u00e0 v\u00f2ng NdFeB \u0111\u1ecbnh h\u01b0\u1edbng theo ph\u01b0\u01a1ng tr\u1ee5c, \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch \u00e9p c\u01a1 h\u1ecdc c\u00e1c b\u1ed9t \u0111\u1ea5t hi\u1ebfm qua qu\u00e1 tr\u00ecnh g\u1ecdi l\u00e0 \u00c9p \u0111\u00f9n ng\u01b0\u1ee3c.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"nh\u00e0<\/a><\/span><\/div>

Nam ch\u00e2m FeCrCo<\/h3><\/h3><\/div>

Nam ch\u00e2m v\u0129nh c\u1eedu FeCrCo<\/strong> xu\u1ea5t hi\u1ec7n l\u1ea7n \u0111\u1ea7u v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1970. Nam ch\u00e2m FeCrCo c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng t\u1ef1 nam ch\u00e2m Alnico v\u1ec1 s\u1ea3n xu\u1ea5t v\u00e0 t\u00ednh ch\u1ea5t. Nam ch\u00e2m FeCrCo c\u0169ng c\u00f3 \u0111\u1ed9 l\u01b0u gi\u1eef t\u1eeb cao nh\u01b0ng Hc th\u1ea5p, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 nam ch\u00e2m Alnico 5. Ch\u00fang c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 h\u1ec7 s\u1ed1 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a Br r\u1ea5t th\u1ea5p, c\u0169ng gi\u1ed1ng nh\u01b0 nam ch\u00e2m Alnico.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div>

\"Nh\u00e0<\/a><\/span><\/div>

Nam ch\u00e2m l\u1edbp gh\u00e9p<\/h3><\/h3><\/div>

Nam ch\u00e2m d\u00e1n l\u1edbp c\u0169ng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn nh\u01b0 l\u00e0 nam ch\u00e2m ph\u00e2n \u0111o\u1ea1n. Ch\u00fang \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb hai ho\u1eb7c nhi\u1ec1u nam ch\u00e2m ri\u00eang bi\u1ec7t li\u00ean k\u1ebft v\u1edbi nhau nh\u01b0ng c\u00e1ch \u0111i\u1ec7n. Nam ch\u00e2m NdFeB d\u00e1n l\u1edbp \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nh\u1eb1m n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c m\u00e1y \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch ng\u0103n ch\u1eb7n nhi\u1ec7t \u0111\u1ed9 c\u1ee7a nam ch\u00e2m qu\u00e1 cao. Ngo\u00e0i NdFeB, nam ch\u00e2m Sm2Co7 c\u0169ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00f4ng ngh\u1ec7 ph\u00e2n \u0111o\u1ea1n nam ch\u00e2m.<\/p>\n<\/div>

T\u00ecm hi\u1ec3u th\u00eam<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>

<\/path><\/svg><\/div>
<\/div><\/div><\/div>
<\/div>

Kh\u00f4ng t\u00ecm th\u1ea5y v\u1eadt li\u1ec7u t\u1eeb t\u00ednh \u1edf tr\u00ean?<\/h2><\/h2><\/div>

NBEAM cung c\u1ea5p gi\u1ea3i ph\u00e1p nam ch\u00e2m t\u00f9y ch\u1ec9nh theo y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/h3>\n<\/div>
<\/i><\/span><\/div>

X\u00e1c nh\u1eadn \u00fd t\u01b0\u1edfng v\u1ec1 nam ch\u00e2m<\/h3><\/div><\/div><\/div>
<\/i><\/span><\/div>

Thi\u1ebft k\u1ebf nam ch\u00e2m<\/h3><\/div><\/div><\/div>
<\/i><\/span><\/div>

S\u1ea3n xu\u1ea5t nam ch\u00e2m<\/h3><\/div><\/div><\/div>
<\/i><\/span><\/div>

Ki\u1ec3m tra nam ch\u00e2m<\/h3><\/div><\/div><\/div>
<\/i><\/span><\/div>

\u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng nam ch\u00e2m<\/h3><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>
<\/span><\/span><\/span>
<\/div>
\"b\u00e1o<\/span><\/div><\/div><\/div>

H\u1eceI CH\u00daNG T\u00d4I<\/h3><\/h2><\/div>
\n\n\n