{"id":2993,"date":"2025-09-22T06:12:34","date_gmt":"2025-09-22T06:12:34","guid":{"rendered":"https:\/\/nbaem.com\/?p=2993"},"modified":"2025-09-22T06:30:22","modified_gmt":"2025-09-22T06:30:22","slug":"how-to-make-a-magnet-stronger","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/how-to-make-a-magnet-stronger\/","title":{"rendered":"C\u00e1ch l\u00e0m Nam ch\u00e2m m\u1ea1nh h\u01a1n"},"content":{"rendered":"<h2>C\u00e1ch l\u00e0m Nam ch\u00e2m m\u1ea1nh h\u01a1n<\/h2>\n<p>B\u1ea1n \u0111\u00e3 t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec l\u00e0m cho m\u1ed9t s\u1ed1 nam ch\u00e2m m\u1ea1nh h\u01a1n nh\u1eefng nam ch\u00e2m kh\u00e1c ch\u01b0a? \u0110\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 ch\u00ednh nh\u01b0 <strong>tr\u01b0\u1eddng t\u1eeb<\/strong>, \u0111\u00f3 l\u00e0 <strong>lo\u1ea1i v\u1eadt li\u1ec7u<\/strong>, \u0111\u00f3 l\u00e0 <strong>k\u00edch th\u01b0\u1edbc<\/strong>, v\u00e0 c\u00e1c <strong>h\u00ecnh d\u1ea1ng<\/strong> c\u1ee7a nam ch\u00e2m.<\/p>\n<h3>\u0110i\u1ec1u G\u00ec Quy\u1ebft \u0110\u1ecbnh \u0110\u1ed9 M\u1ea1nh C\u1ee7a Nam Ch\u00e2m<\/h3>\n<ul>\n<li><strong>Lo\u1ea1i v\u1eadt li\u1ec7u<\/strong>: C\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau t\u1ea1o ra c\u00e1c \u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng kh\u00e1c nhau. V\u00ed d\u1ee5, nam ch\u00e2m neodymium l\u00e0 m\u1ed9t trong nh\u1eefng nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh nh\u1ea5t, m\u1ea1nh h\u01a1n nhi\u1ec1u so v\u1edbi nam ch\u00e2m g\u1ed1m ho\u1eb7c alnico.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc<\/strong>: Nam ch\u00e2m l\u1edbn h\u01a1n th\u01b0\u1eddng c\u00f3 tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n v\u00ec ch\u00fang ch\u1ee9a nhi\u1ec1u v\u1eadt li\u1ec7u t\u1eeb h\u01a1n.<\/li>\n<li><strong>H\u00ecnh d\u1ea1ng<\/strong>: H\u00ecnh d\u1ea1ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch c\u00e1c \u0111\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng ph\u00e2n b\u1ed1; m\u1ed9t s\u1ed1 h\u00ecnh d\u1ea1ng gi\u00fap t\u1eadp trung tr\u01b0\u1eddng t\u1ed1t h\u01a1n.<\/li>\n<li><strong>T\u1eeb Tr\u01b0\u1eddng<\/strong>: \u0110\u1ed9 m\u1ea1nh m\u00e0 b\u1ea1n c\u1ea3m nh\u1eadn ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 s\u1eafp x\u1ebfp c\u1ee7a c\u00e1c mi\u1ec1n t\u1eeb b\u00ean trong v\u1eadt li\u1ec7u.<\/li>\n<\/ul>\n<h3>C\u00e1c Lo\u1ea1i Nam Ch\u00e2m Ph\u1ed5 Bi\u1ebfn v\u00e0 M\u1ee9c \u0110\u1ed9 M\u1ea1nh<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m Neodymium<\/strong> \u2013 R\u1ea5t m\u1ea1nh, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec7n t\u1eed.<\/li>\n<li><strong>Nam ch\u00e2m g\u1ed1m<\/strong> \u2013 M\u1ee9c \u0111\u1ed9 trung b\u00ecnh, ph\u00f9 h\u1ee3p v\u00e0 ph\u1ed5 bi\u1ebfn trong c\u00e1c v\u1eadt d\u1ee5ng gia \u0111\u00ecnh.<\/li>\n<li><strong>Nam ch\u00e2m Alnico<\/strong> \u2013 Lo\u1ea1i c\u0169 h\u01a1n, \u1ed5n \u0111\u1ecbnh nh\u01b0ng kh\u00f4ng m\u1ea1nh b\u1eb1ng neodymium.<\/li>\n<\/ul>\n<h3>C\u00e1ch Ho\u1ea1t \u0110\u1ed9ng c\u1ee7a T\u1eeb T\u00ednh<\/h3>\n<p>\u1ede trung t\u00e2m, t\u1eeb t\u00ednh xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c v\u00f9ng nh\u1ecf g\u1ecdi l\u00e0 <strong>mi\u1ec1n t\u1eeb<\/strong>. C\u00e1c mi\u1ec1n n\u00e0y gi\u1ed1ng nh\u01b0 c\u00e1c nam ch\u00e2m nh\u1ecf b\u00ean trong v\u1eadt li\u1ec7u. Khi ch\u00fang s\u1eafp x\u1ebfp theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng, nam ch\u00e2m tr\u1edf n\u00ean m\u1ea1nh. S\u1eafp x\u1ebfp kh\u00f4ng t\u1ed1t ngh\u0129a l\u00e0 nam ch\u00e2m y\u1ebfu.<\/p>\n<h3>T\u1ea1i sao M\u1ed9t s\u1ed1 Nam Ch\u00e2m M\u1ea5t \u0110\u1ed9 M\u1ea1nh Theo Th\u1eddi Gian<\/h3>\n<p>Nam ch\u00e2m c\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 m\u1ea1nh khi:<\/p>\n<ul>\n<li><strong>Ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t<\/strong> g\u00e2y r\u1ed1i lo\u1ea1n s\u1ef1 s\u1eafp x\u1ebfp c\u1ee7a c\u00e1c mi\u1ec1n<\/li>\n<li><strong>S\u1ed1c ho\u1eb7c va \u0111\u1eadp v\u1eadt l\u00fd<\/strong> g\u00e2y l\u1ec7ch h\u01b0\u1edbng<\/li>\n<li><strong>C\u00e1c tr\u01b0\u1eddng t\u1eeb \u0111\u1ed1i l\u1eadp m\u1ea1nh<\/strong> gi\u1ea3m t\u1eeb t\u00ednh c\u1ee7a ch\u00fang<\/li>\n<\/ul>\n<p>Hi\u1ec3u nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n n\u00e0y gi\u00fap b\u1ea1n bi\u1ebft t\u1ea1i sao m\u1ed9t s\u1ed1 nam ch\u00e2m c\u1ea3m th\u1ea5y y\u1ebfu v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m g\u00ec \u0111\u1ec3 c\u1ea3i thi\u1ec7n ch\u00fang.<\/p>\n<h2>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 l\u00e0m nam ch\u00e2m m\u1ea1nh h\u01a1n<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Methods_to_Strengthen_Magnets_aWdwMlDvB.webp\" alt=\"C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u0103ng c\u01b0\u1eddng nam ch\u00e2m\" width=\"827\" height=\"465\" \/><\/p>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb, c\u00f3 nh\u1eefng c\u00e1ch th\u1ef1c t\u1ebf \u0111\u1ec3 n\u00e2ng cao s\u1ee9c m\u1ea1nh c\u1ee7a nam ch\u00e2m m\u00e0 kh\u00f4ng c\u1ea7n mua nam ch\u00e2m m\u1edbi.<\/p>\n<h3>T\u00e1i t\u1eeb h\u00f3a nam ch\u00e2m<\/h3>\n<p>Theo th\u1eddi gian, nam ch\u00e2m c\u00f3 th\u1ec3 m\u1ea5t m\u1ed9t ph\u1ea7n s\u1ee9c m\u1ea1nh, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch t\u00e1i t\u1eeb h\u00f3a. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Ch\u00e0 x\u00e1t<\/strong> nam ch\u00e2m c\u1ee7a b\u1ea1n b\u1eb1ng m\u1ed9t nam ch\u00e2m m\u1ea1nh h\u01a1n nhi\u1ec1u l\u1ea7n \u0111\u1ec3 c\u0103n ch\u1ec9nh l\u1ea1i c\u00e1c mi\u1ec1n t\u1eeb c\u1ee7a n\u00f3.<\/li>\n<li><strong>S\u1eed d\u1ee5ng nam ch\u00e2m \u0111i\u1ec7n<\/strong> \u0111\u1ec3 t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb ki\u1ec3m so\u00e1t v\u00e0 kh\u00f4i ph\u1ee5c ho\u1eb7c n\u00e2ng cao t\u1eeb t\u00ednh.<\/li>\n<\/ul>\n<h3>T\u0103ng k\u00edch th\u01b0\u1edbc nam ch\u00e2m ho\u1eb7c x\u1ebfp ch\u1ed3ng nhi\u1ec1u nam ch\u00e2m<\/h3>\n<p>Th\u00eam k\u00edch th\u01b0\u1edbc c\u00f3 th\u1ec3 t\u1ef1 nhi\u00ean l\u00e0m t\u0103ng s\u1ee9c m\u1ea1nh, nh\u01b0ng n\u1ebfu b\u1ea1n kh\u00f4ng mu\u1ed1n m\u1ed9t nam ch\u00e2m l\u1edbn h\u01a1n, h\u00e3y th\u1eed x\u1ebfp ch\u1ed3ng nhi\u1ec1u nam ch\u00e2m l\u1ea1i v\u1edbi nhau. X\u1ebfp ch\u1ed3ng t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n b\u1eb1ng c\u00e1ch c\u0103n ch\u1ec9nh c\u00e1c c\u1ef1c c\u1ee7a ch\u00fang, t\u1ea1o ra l\u1ef1c h\u00fat m\u1ea1nh h\u01a1n.<\/p>\n<h3>S\u1eed d\u1ee5ng m\u1ea1ch t\u1eeb<\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 t\u1eadp trung d\u00f2ng t\u1eeb b\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p l\u00f5i s\u1eaft ho\u1eb7c th\u00e9p quanh ho\u1eb7c b\u00ean trong nam ch\u00e2m. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y h\u01b0\u1edbng d\u00f2ng t\u1eeb, l\u00e0m t\u0103ng c\u01b0\u1eddng l\u1ef1c t\u1eeb t\u1ed5ng th\u1ec3 n\u01a1i b\u1ea1n c\u1ea7n nh\u1ea5t.<\/p>\n<h3>\u0110\u1ecbnh h\u01b0\u1edbng v\u00e0 \u0111\u1eb7t v\u1ecb tr\u00ed nam ch\u00e2m \u0111\u00fang c\u00e1ch<\/h3>\n<p>V\u1ecb tr\u00ed quan tr\u1ecdng\u2014\u0111\u1eb7t nam ch\u00e2m sao cho c\u00e1c c\u1ef1c c\u1ee7a ch\u00fang c\u0103n ch\u1ec9nh \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1ef1c h\u00fat t\u1eeb t\u1ed1i \u0111a. Trong c\u00e1c thi\u1ebft b\u1ecb ho\u1eb7c h\u1ec7 th\u1ed1ng, t\u1ed1i \u01b0u h\u00f3a c\u00e1ch nam ch\u00e2m h\u01b0\u1edbng v\u1ec1 nhau c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 s\u1ee9c m\u1ea1nh hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang.<\/p>\n<h3>L\u00e0m m\u00e1t nam ch\u00e2m \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng s\u1ee9c m\u1ea1nh<\/h3>\n<p>Nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 l\u00e0m t\u0103ng s\u1ee9c m\u1ea1nh c\u1ee7a nam ch\u00e2m b\u1eb1ng c\u00e1ch gi\u1ea3m rung \u0111\u1ed9ng nhi\u1ec7t l\u00e0m r\u1ed1i lo\u1ea1n c\u00e1c mi\u1ec1n t\u1eeb. Ch\u1ec9 c\u1ea7n c\u1ea9n th\u1eadn\u2014l\u1ea1nh c\u1ef1c \u0111oan ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi m\u1ed9t s\u1ed1 nam ch\u00e2m nh\u01b0 neodymium, nh\u01b0ng nh\u1eefng lo\u1ea1i kh\u00e1c c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3n \u1ee9ng t\u1ed1t v\u1edbi vi\u1ec7c l\u00e0m l\u1ea1nh. Lu\u00f4n ki\u1ec3m tra gi\u1edbi h\u1ea1n v\u1eadt li\u1ec7u c\u1ee7a nam ch\u00e2m.<\/p>\n<p>Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn n\u00e0y gi\u00fap b\u1ea1n t\u1eadn d\u1ee5ng t\u1ed1i \u0111a t\u1eeb c\u00e1c nam ch\u00e2m c\u1ee7a m\u00ecnh d\u00f9 cho m\u1ee5c \u0111\u00edch DIY, s\u1eed d\u1ee5ng trong c\u00f4ng nghi\u1ec7p hay \u1ee9ng d\u1ee5ng s\u1edf th\u00edch. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 v\u1eadt li\u1ec7u v\u00e0 lo\u1ea1i nam ch\u00e2m, 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-are-magnets-made-of\/\" target=\"_blank\" rel=\"noopener\">nam ch\u00e2m l\u00e0m b\u1eb1ng g\u00ec<\/a><\/span><\/strong>.<\/p>\n<h2>K\u1ef9 Thu\u1eadt N\u00e2ng Cao v\u00e0 V\u1eadt Li\u1ec7u S\u1eed D\u1ee5ng c\u1ee7a NBAEM<\/h2>\n<p>T\u1ea1i NBAEM, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng h\u1ee3p kim nam ch\u00e2m chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng s\u1ee9c m\u1ea1nh c\u1ee7a nam ch\u00e2m v\u01b0\u1ee3t qua m\u1ee9c ti\u00eau chu\u1ea9n. Nh\u1eefng v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn n\u00e0y gi\u00fap t\u0103ng flux t\u1eeb v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3.<\/p>\n<p>Ch\u00fang t\u00f4i c\u0169ng \u00e1p d\u1ee5ng c\u00e1c quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t v\u00e0 \u1ee7, gi\u00fap c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t t\u1eeb b\u1eb1ng c\u00e1ch tinh ch\u1ec9nh c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a nam ch\u00e2m. B\u01b0\u1edbc n\u00e0y l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nam ch\u00e2m m\u1ea1nh h\u01a1n, \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n<p>H\u00ecnh d\u1ea1ng nam ch\u00e2m t\u00f9y ch\u1ec9nh l\u00e0 m\u1ed9t c\u00e1ch kh\u00e1c \u0111\u1ec3 ch\u00fang t\u00f4i t\u1ed1i \u0111a h\u00f3a s\u1ef1 t\u1eadp trung c\u1ee7a tr\u01b0\u1eddng t\u1eeb. B\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u00ecnh ch\u00ednh x\u00e1c nam ch\u00e2m, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 t\u1eadp trung l\u1ef1c t\u1eeb c\u1ee7a ch\u00fang \u1edf n\u01a1i c\u1ea7n thi\u1ebft nh\u1ea5t, n\u00e2ng cao hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, NBAEM th\u00eam l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 cho c\u00e1c nam ch\u00e2m c\u1ee7a m\u00ecnh. Nh\u1eefng l\u1edbp n\u00e0y ch\u1ed1ng \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n v\u1eadt l\u00fd, gi\u00fap duy tr\u00ec s\u1ee9c m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n theo th\u1eddi gian. Vi\u1ec7c b\u1ea3o v\u1ec7 c\u1ea9n th\u1eadn n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c nam ch\u00e2m s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt ti\u00ean ti\u1ebfn n\u00e0y, NBAEM cung c\u1ea5p c\u00e1c nam ch\u00e2m \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n cao v\u1ec1 s\u1ee9c m\u1ea1nh v\u00e0 hi\u1ec7u su\u1ea5t l\u00e2u d\u00e0i.<\/p>\n<h2>M\u1eb9o th\u1ef1c t\u1ebf v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Safe_Handling_and_Care_of_Strong_Magnets_aXlNkBSQg.webp\" alt=\"C\u00e1ch x\u1eed l\u00fd an to\u00e0n v\u00e0 ch\u0103m s\u00f3c nam ch\u00e2m m\u1ea1nh\" width=\"688\" height=\"688\" \/><\/p>\n<p>X\u1eed l\u00fd nam ch\u00e2m m\u1ea1nh m\u1ed9t c\u00e1ch an to\u00e0n l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 tr\u00e1nh th\u01b0\u01a1ng t\u00edch v\u00e0 h\u01b0 h\u1ecfng. Lu\u00f4n gi\u1eef nam ch\u00e2m tr\u00e1nh xa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, th\u1ebb t\u00edn d\u1ee5ng v\u00e0 m\u00e1y t\u1ea1o nh\u1ecbp tim. Khi l\u00e0m vi\u1ec7c v\u1edbi nam ch\u00e2m l\u1edbn, \u0111eo g\u0103ng tay v\u00e0 gi\u1eef c\u00e1c ng\u00f3n tay tr\u00e1nh xa \u0111\u1ec3 tr\u00e1nh b\u1ecb k\u1eb9p. L\u01b0u tr\u1eef nam ch\u00e2m ri\u00eang bi\u1ec7t ho\u1eb7c c\u00f3 kho\u1ea3ng c\u00e1ch \u0111\u1ec3 tr\u00e1nh ch\u00fang va ch\u1ea1m \u0111\u1ed9t ng\u1ed9t.<\/p>\n<p>\u0110\u1ec3 tr\u00e1nh m\u1ea5t t\u1eeb t\u00ednh, h\u00e3y b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi s\u1ed1c, r\u01a1i v\u00e0 rung \u0111\u1ed9ng m\u1ea1nh. Nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 l\u00e0m y\u1ebfu s\u1ee9c m\u1ea1nh t\u1eeb, v\u00ec v\u1eady gi\u1eef nam ch\u00e2m tr\u00e1nh xa ngu\u1ed3n nhi\u1ec7t tr\u00ean m\u1ee9c gi\u1edbi h\u1ea1n \u0111\u1ec1 xu\u1ea5t. Ngo\u00e0i ra, tr\u00e1nh \u0111\u1ec3 nam ch\u00e2m ti\u1ebfp x\u00fac v\u1edbi d\u00f2ng \u0111i\u1ec7n m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m r\u1ed1i lo\u1ea1n s\u1ef1 s\u1eafp x\u1ebfp c\u1ee7a mi\u1ec1n t\u1eeb.<\/p>\n<p>\u0110\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m v\u00e0 duy tr\u00ec s\u1ee9c m\u1ea1nh c\u1ee7a n\u00f3:<\/p>\n<ul>\n<li>L\u01b0u tr\u1eef nam ch\u00e2m \u1edf n\u01a1i m\u00e1t m\u1ebb, kh\u00f4 r\u00e1o<\/li>\n<li>Gi\u1eef nam ch\u00e2m tr\u00e1nh \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi tr\u1ef1c ti\u1ebfp v\u00e0 \u0111\u1ed9 \u1ea9m<\/li>\n<li>S\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 n\u1ebfu c\u00f3 th\u1ec3 \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n<\/li>\n<li>T\u00e1i nam ch\u00e2m h\u00f3a c\u00e1c nam ch\u00e2m y\u1ebfu n\u1ebfu c\u1ea7n b\u1eb1ng k\u1ef9 thu\u1eadt nam ch\u00e2m ph\u00f9 h\u1ee3p<\/li>\n<\/ul>\n<p>Tu\u00e2n th\u1ee7 c\u00e1c m\u1eb9o ch\u0103m s\u00f3c \u0111\u01a1n gi\u1ea3n n\u00e0y s\u1ebd gi\u00fap nam ch\u00e2m c\u1ee7a b\u1ea1n lu\u00f4n m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady l\u00e2u d\u00e0i.<\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p FAQs<\/h2>\n<h3>T\u1ea5t c\u1ea3 nam ch\u00e2m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m m\u1ea1nh h\u01a1n kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u0103ng c\u01b0\u1eddng. Nam ch\u00e2m v\u0129nh c\u1eedu nh\u01b0 neodymium v\u00e0 alnico ph\u1ea3n \u1ee9ng t\u1ed1t v\u1edbi vi\u1ec7c t\u00e1i nam ch\u00e2m v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tr\u1ecb nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng nam ch\u00e2m g\u1ed1m s\u1ee9 c\u00f3 gi\u1edbi h\u1ea1n. Lo\u1ea1i v\u1eadt li\u1ec7u v\u00e0 t\u00ecnh tr\u1ea1ng c\u1ee7a nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong vi\u1ec7c li\u1ec7u s\u1ee9c m\u1ea1nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n hay kh\u00f4ng.<\/p>\n<h3>T\u0103ng k\u00edch th\u01b0\u1edbc nam ch\u00e2m c\u00f3 ph\u1ea3i l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 t\u0103ng s\u1ee9c m\u1ea1nh?<\/h3>\n<p>Kh\u00f4ng, t\u0103ng k\u00edch th\u01b0\u1edbc gi\u00fap, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p duy nh\u1ea5t. X\u1ebfp ch\u1ed3ng nam ch\u00e2m, t\u00e1i nam ch\u00e2m v\u1edbi tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n, th\u00eam l\u00f5i s\u1eaft \u0111\u1ec3 t\u1eadp trung flux t\u1eeb, v\u00e0 t\u1ed1i \u01b0u h\u00f3a h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m l\u00e0 nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 n\u00e2ng cao s\u1ee9c m\u1ea1nh m\u00e0 kh\u00f4ng c\u1ea7n l\u00e0m nam ch\u00e2m l\u1edbn h\u01a1n.<\/p>\n<h3>Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m?<\/h3>\n<p>Nhi\u1ec7t \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh t\u1eeb. L\u00e0m m\u00e1t nam ch\u00e2m th\u01b0\u1eddng l\u00e0m t\u0103ng \u0111\u1ed9 m\u1ea1nh c\u1ee7a n\u00f3, trong khi qu\u00e1 nhi\u1ec7t c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t v\u0129nh vi\u1ec5n b\u1eb1ng c\u00e1ch l\u00e0m r\u1ed1i lo\u1ea1n c\u00e1c mi\u1ec1n t\u1eeb. M\u1ed7i lo\u1ea1i nam ch\u00e2m c\u00f3 ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3 m\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ph\u01b0\u01a1ng ph\u00e1p t\u1ea1m th\u1eddi v\u00e0 v\u0129nh vi\u1ec5n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng nam ch\u00e2m l\u00e0 g\u00ec?<\/h3>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1m th\u1eddi, nh\u01b0 s\u1eed d\u1ee5ng \u0111i\u1ec7n t\u1eeb b\u00ean ngo\u00e0i ho\u1eb7c x\u1ebfp ch\u1ed3ng, ch\u1ec9 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh khi c\u00f2n t\u00e1c d\u1ee5ng. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u0129nh vi\u1ec5n li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay \u0111\u1ed5i c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a nam ch\u00e2m th\u00f4ng qua t\u00e1i t\u1eeb h\u00f3a, x\u1eed l\u00fd nhi\u1ec7t ho\u1eb7c s\u1eed d\u1ee5ng h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t, mang l\u1ea1i c\u1ea3i thi\u1ec7n l\u00e2u d\u00e0i.<\/p>\n<h3>NBAEM \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t trong c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb c\u1ee7a h\u1ecd nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n<p>NBAEM s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn nh\u01b0 h\u1ee3p kim neodymium, \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd nhi\u1ec7t ch\u00ednh x\u00e1c v\u00e0 th\u1ef1c hi\u1ec7n ki\u1ec3m tra nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nam ch\u00e2m m\u1ea1nh m\u1ebd, \u1ed5n \u0111\u1ecbnh. Chuy\u00ean m\u00f4n c\u1ee7a h\u1ecd gi\u00fap thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh v\u1edbi hi\u1ec7u su\u1ea5t t\u1eeb t\u1ed1i \u0111a ph\u00f9 h\u1ee3p cho kh\u00e1ch h\u00e0ng t\u1ea1i Vi\u1ec7t Nam c\u1ea7n nam ch\u00e2m \u0111\u00e1ng tin c\u1eady, b\u1ec1n b\u1ec9.<\/p>\n<h2>T\u1ea1i Sao Ch\u1ecdn NBAEM Cho Nhu C\u1ea7u V\u1eadt Li\u1ec7u T\u1eeb T\u1eeb C\u1ee7a B\u1ea1n<\/h2>\n<p>NBAEM mang \u0111\u1ebfn nhi\u1ec1u n\u0103m kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c v\u1eadt li\u1ec7u t\u1eeb, ph\u1ee5c v\u1ee5 c\u00e1c doanh nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam v\u1edbi c\u00e1c nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ed9 m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n. D\u00f9 b\u1ea1n c\u1ea7n nam ch\u00e2m neodymium hay gi\u1ea3i ph\u00e1p t\u1eeb t\u00f9y ch\u1ec9nh, NBAEM cung c\u1ea5p s\u1ea3n ph\u1ea9m \u0111\u00e1ng tin c\u1eady, hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c l\u00e0m ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n.<\/p>\n<h3>\u0110i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ee7a NBAEM<\/h3>\n<ul>\n<li><strong>\u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng<\/strong>: Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 m\u1ea1nh t\u1eeb v\u00e0 tu\u1ed5i th\u1ecd l\u00e2u d\u00e0i.<\/li>\n<li><strong>T\u00f9y ch\u1ec9nh<\/strong>: K\u00edch th\u01b0\u1edbc, h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 m\u1ea1nh t\u1eeb ph\u00f9 h\u1ee3p t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u d\u1ef1 \u00e1n \u0111\u1eb7c bi\u1ec7t.<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/strong>: H\u01b0\u1edbng d\u1eabn chuy\u00ean nghi\u1ec7p trong su\u1ed1t qu\u00e1 tr\u00ecnh \u0111\u1eb7t h\u00e0ng, t\u1eeb l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m \u0111\u1ebfn t\u01b0 v\u1ea5n l\u1eafp \u0111\u1eb7t.<\/li>\n<li><strong>Gi\u00e1 C\u1ea3 C\u1ea1nh Tranh<\/strong>: Gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<li><strong>Giao h\u00e0ng nhanh<\/strong>: S\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 c\u00e1c doanh nghi\u1ec7p \u0111\u1ecba ph\u01b0\u01a1ng t\u1ea1i Vi\u1ec7t Nam v\u1edbi d\u1ecbch v\u1ee5 giao h\u00e0ng \u0111\u00fang h\u1ea1n.<\/li>\n<\/ul>\n<h3>C\u00e2u chuy\u1ec7n th\u00e0nh c\u00f4ng c\u1ee7a kh\u00e1ch h\u00e0ng<\/h3>\n<ul>\n<li>M\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam \u0111\u00e3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a b\u1ed9 ph\u1eadn t\u1eeb b\u1eb1ng c\u00e1ch chuy\u1ec3n sang nam ch\u00e2m neodymium \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t c\u1ee7a NBAEM.<\/li>\n<li>M\u1ed9t c\u00f4ng ty \u0111i\u1ec7n t\u1eed gi\u1ea3m thi\u1ec3u l\u1ed7i h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nam ch\u00e2m g\u1ed1m t\u00f9y ch\u1ec9nh c\u1ee7a NBAEM \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1eadp trung tr\u01b0\u1eddng t\u1eeb ch\u1eb7t ch\u1ebd h\u01a1n.<\/li>\n<\/ul>\n<h3>Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/h3>\n<p>\u0110\u1ec3 \u0111\u1eb7t h\u00e0ng nam ch\u00e2m t\u00f9y ch\u1ec9nh ho\u1eb7c mua s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c v\u1edbi y\u00eau c\u1ea7u \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a b\u1ea1n, h\u00e3y li\u00ean h\u1ec7 tr\u1ef1c ti\u1ebfp v\u1edbi NBAEM ngay h\u00f4m nay. Tr\u1ea3i nghi\u1ec7m hi\u1ec7u su\u1ea5t t\u1eeb t\u0103ng cao \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi chuy\u00ean m\u00f4n \u0111\u00e1ng tin c\u1eady v\u00e0 d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 t\u00f9y ch\u1ec9nh.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1c m\u1eb9o chuy\u00ean gia v\u1ec1 c\u00e1ch l\u00e0m nam ch\u00e2m m\u1ea1nh h\u01a1n v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt t\u1eeb t\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh v\u00e0 v\u1eadt li\u1ec7u t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng cao t\u1eeb NBAEM Trung Qu\u1ed1c.<\/p>","protected":false},"author":1,"featured_media":2992,"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-2993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/how_to_make_a_magnet_stronger_WDF5wB488.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2993","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=2993"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2993\/revisions"}],"predecessor-version":[{"id":3001,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2993\/revisions\/3001"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2992"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=2993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=2993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=2993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}