{"id":3318,"date":"2025-11-05T03:53:49","date_gmt":"2025-11-05T03:53:49","guid":{"rendered":"https:\/\/nbaem.com\/?p=3318"},"modified":"2025-11-05T06:44:48","modified_gmt":"2025-11-05T06:44:48","slug":"what-is-temporary-magnet","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-temporary-magnet\/","title":{"rendered":"H\u1ec7 \u0110\u1ec1 L\u00e0 G\u00ec"},"content":{"rendered":"<h2>Nh\u1eefng n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n: Ch\u00ednh x\u00e1c th\u00ec Nam ch\u00e2m t\u1ea1m th\u1eddi l\u00e0 g\u00ec?<\/h2>\n<p>M\u1ed9t nam ch\u00e2m t\u1ea1m th\u1eddi l\u00e0 lo\u1ea1i nam ch\u00e2m ch\u1ec9 th\u1ec3 hi\u1ec7n \u0111\u1eb7c t\u00ednh t\u1eeb khi ti\u1ebfp x\u00fac v\u1edbi m\u1ed9t tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i. Kh\u00e1c v\u1edbi nam ch\u00e2m v\u0129nh c\u1eedu, nam ch\u00e2m t\u1ea1m th\u1eddi m\u1ea5t t\u1eeb t\u00ednh khi tr\u01b0\u1eddng b\u00ean ngo\u00e0i b\u1ecb lo\u1ea1i b\u1ecf. H\u00e0nh vi n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n ki\u1ec3m so\u00e1t t\u1eeb t\u00ednh theo y\u00eau c\u1ea7u. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c nam ch\u00e2m n\u00e0y \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u ferromagnetic m\u1ec1m nh\u01b0 s\u1eaft m\u1ec1m ho\u1eb7c h\u1ee3p kim nh\u1ea5t \u0111\u1ecbnh. C\u1ea5u tr\u00fac nguy\u00ean t\u1eed c\u1ee7a ch\u00fang cho ph\u00e9p c\u00e1c mi\u1ec1n t\u1eeb d\u1ec5 d\u00e0ng c\u0103n ch\u1ec9nh d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a tr\u01b0\u1eddng t\u1eeb nh\u01b0ng c\u0169ng tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i ng\u1eabu nhi\u00ean khi kh\u00f4ng c\u00f3 tr\u01b0\u1eddng.<\/p>\n<p>L\u1ecbch s\u1eed nghi\u00ean c\u1ee9u v\u1ec1 nam ch\u00e2m t\u1ea1m th\u1eddi b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c th\u00ed nghi\u1ec7m \u0111\u1ea7u ti\u00ean v\u1edbi s\u1eaft m\u1ec1m v\u00e0 electromagnet trong th\u1ebf k\u1ef7 19. C\u00e1c ti\u1ebfn b\u1ed9 trong khoa h\u1ecdc v\u1eadt li\u1ec7u theo th\u1eddi gian \u0111\u00e3 n\u00e2ng cao kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang. Hi\u1ec7n nay, c\u00e1c s\u00e1ng ki\u1ebfn bao g\u1ed3m l\u00f5i s\u1eaft m\u1ec1m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t v\u00e0 h\u1ee3p kim ph\u1ee9c t\u1ea1p nh\u1eb1m t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh.<\/p>\n<p>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>H\u1ec7 s\u1ed1 t\u1eeb kh\u00e1ng th\u1ea5p:<\/strong> Ch\u00fang c\u1ea7n m\u1ed9t tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i t\u1ed1i thi\u1ec3u \u0111\u1ec3 magnetize v\u00e0 demagnetize.<\/li>\n<li><strong>\u0110\u1ed9 th\u1ea5m cao:<\/strong> Kh\u1ea3 n\u0103ng d\u1eabn truy\u1ec1n flux t\u1eeb hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng \u0111\u1ea3o chi\u1ec1u:<\/strong> T\u1eeb t\u00ednh c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 b\u1eadt t\u1eaft nhanh ch\u00f3ng v\u00e0 l\u1eb7p l\u1ea1i nhi\u1ec1u l\u1ea7n.<\/li>\n<\/ul>\n<p>Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec ch\u00fang cho ph\u00e9p nam ch\u00e2m t\u1ea1m th\u1eddi v\u1eeba ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u1eeba linh ho\u1ea1t, cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb t\u1eeb c\u00e1c thang m\u00e1y c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111i\u1ec7n t\u1eed h\u00e0ng ng\u00e0y. Hi\u1ec3u r\u00f5 v\u1ec1 nh\u1eefng n\u1ec1n t\u1ea3ng c\u1ee7a ch\u00fang gi\u00fap ch\u00fang ta tr\u00e2n tr\u1ecdng ph\u1ea1m vi \u1ee9ng d\u1ee5ng r\u1ed9ng l\u1edbn n\u01a1i nam ch\u00e2m t\u1ea1m th\u1eddi t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t th\u1ef1c s\u1ef1.<\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi: Khoa h\u1ecdc \u0111\u1eb1ng sau c\u00f4ng t\u1eafc<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Temporary_magnet_science_and_hysteresis_loop_kFGbp.webp\" alt=\"Khoa h\u1ecdc nam ch\u00e2m t\u1ea1m th\u1eddi v\u00e0 v\u00f2ng hysteresis\" \/><\/p>\n<p>Nam ch\u00e2m t\u1ea1m th\u1eddi ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch tr\u1edf th\u00e0nh t\u1eeb t\u00ednh ch\u1ec9 khi ti\u1ebfp x\u00fac v\u1edbi tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t \u0111\u1ed1ng kim ch\u1ec9 nam nh\u1ecf b\u00ean trong kim lo\u1ea1i. Khi b\u1ea1n \u0111\u01b0a m\u1ed9t nam ch\u00e2m l\u1ea1i g\u1ea7n, c\u00e1c kim n\u00e0y c\u0103n ch\u1ec9nh theo h\u01b0\u1edbng, t\u1ea1o ra hi\u1ec7u \u1ee9ng t\u1eeb. Khi r\u00fat nam ch\u00e2m ra, c\u00e1c kim nhanh ch\u00f3ng ph\u00e2n t\u00e1n, m\u1ea5t ph\u1ea7n l\u1edbn t\u1eeb t\u00ednh c\u1ee7a ch\u00fang. C\u00f4ng t\u1eafc \u201cb\u1eadt t\u1eaft\u201d n\u00e0y l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi.<\/p>\n<h3>V\u00f2ng l\u1eb7p Hysteresis \u0111\u01a1n gi\u1ea3n<\/h3>\n<p>Ch\u00eca kh\u00f3a \u0111\u1ec3 hi\u1ec3u nam ch\u00e2m t\u1ea1m th\u1eddi n\u1eb1m \u1edf v\u00f2ng l\u1eb7p hysteresis, th\u1ec3 hi\u1ec7n c\u00e1ch m\u1ed9t v\u1eadt li\u1ec7u magnetize v\u00e0 m\u1ea5t t\u1eeb t\u00ednh. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng nh\u01b0 \u0111\u1ea9y m\u1ed9t chi\u1ebfc x\u00edch \u0111u: c\u1ea7n n\u1ed7 l\u1ef1c \u0111\u1ec3 b\u1eaft \u0111\u1ea7u \u0111ung \u0111\u01b0a v\u00e0 d\u1eebng l\u1ea1i. T\u01b0\u01a1ng t\u1ef1, nam ch\u00e2m t\u1ea1m th\u1eddi c\u1ea7n m\u1ed9t tr\u01b0\u1eddng t\u1eeb (\u0111\u1ea9y) \u0111\u1ec3 c\u0103n ch\u1ec9nh c\u00e1c mi\u1ec1n c\u1ee7a ch\u00fang v\u00e0 m\u1ea5t t\u1eeb t\u00ednh nhanh ch\u00f3ng khi tr\u01b0\u1eddng b\u1ecb lo\u1ea1i b\u1ecf. Kh\u00e1c v\u1edbi nam ch\u00e2m v\u0129nh c\u1eedu, ch\u00fang c\u00f3 h\u1ec7 s\u1ed1 t\u1eeb kh\u00e1ng th\u1ea5p \u2014 ngh\u0129a l\u00e0 ch\u00fang kh\u00f4ng gi\u1eef t\u1eeb t\u00ednh l\u00e2u sau khi tr\u01b0\u1eddng b\u00ean ngo\u00e0i bi\u1ebfn m\u1ea5t.<\/p>\n<h3>\u0110i\u1ec1u g\u00ec \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi?<\/h3>\n<p>M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi:<\/p>\n<ul>\n<li><strong>Tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i:<\/strong> Tr\u01b0\u1eddng c\u00e0ng m\u1ea1nh v\u00e0 \u1ed5n \u0111\u1ecbnh, kh\u1ea3 n\u0103ng magnetize c\u00e0ng t\u1ed1t.<\/li>\n<li><strong>Th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u:<\/strong> S\u1eaft m\u1ec1m v\u00e0 h\u1ee3p kim nh\u1ea5t \u0111\u1ecbnh ph\u1ed5 bi\u1ebfn v\u00ec ch\u00fang d\u1ec5 d\u00e0ng h\u1ea5p th\u1ee5 v\u00e0 m\u1ea5t t\u1eeb t\u00ednh.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> Nhi\u1ec7t c\u00f3 th\u1ec3 l\u00e0m cho nam ch\u00e2m kh\u00f3 duy tr\u00ec s\u1ef1 c\u0103n ch\u1ec9nh, gi\u1ea3m hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>Rung l\u1eafc v\u00e0 Chuy\u1ec3n \u0111\u1ed9ng:<\/strong> C\u00e1c x\u00e1o tr\u1ed9n v\u1eadt l\u00fd c\u00f3 th\u1ec3 l\u00e0m rung c\u00e1c mi\u1ec1n nh\u1ecf \u0111\u00f3, l\u00e0m y\u1ebfu \u0111i nam ch\u00e2m.<\/li>\n<\/ul>\n<h3>L\u00e0m r\u00f5 nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m t\u1ea1m th\u1eddi kh\u00f4ng ph\u1ea3i l\u00e0 nam ch\u00e2m y\u1ebfu.<\/strong> Ch\u00fang ch\u1ec9 kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c t\u1eeb t\u00ednh c\u1ee7a m\u00ecnh khi kh\u00f4ng c\u00f3 tr\u01b0\u1eddng t\u1eeb.<\/li>\n<li><strong>Ch\u00fang kh\u00f4ng gi\u1ed1ng nh\u01b0 nam ch\u00e2m \u0111i\u1ec7n,<\/strong> m\u1eb7c d\u00f9 nam ch\u00e2m \u0111i\u1ec7n s\u1eed d\u1ee5ng \u0111\u1eb7c t\u00ednh c\u1ee7a t\u1eeb t\u00ednh t\u1ea1m th\u1eddi n\u00e0y \u0111\u1ec3 b\u1eadt v\u00e0 t\u1eaft hi\u1ec7u \u1ee9ng t\u1eeb.<\/li>\n<li><strong>T\u1ea5t c\u1ea3 c\u00e1c kim lo\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 nam ch\u00e2m t\u1ea1m th\u1eddi.<\/strong> Ch\u1ec9 c\u00f3 m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u s\u1eaft t\u1eeb \u0111\u1eb7c bi\u1ec7t m\u1edbi c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng theo c\u00e1ch n\u00e0y.<\/li>\n<\/ul>\n<p>Hi\u1ec3u nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n n\u00e0y gi\u00fap d\u1ec5 d\u00e0ng nh\u1eadn th\u1ee9c c\u00e1ch nam ch\u00e2m t\u1ea1m th\u1eddi ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn.<\/p>\n<h2>C\u00e1c lo\u1ea1i nam ch\u00e2m t\u1ea1m th\u1eddi: T\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn ph\u1ee9c t\u1ea1p<\/h2>\n<p>Nam ch\u00e2m t\u1ea1m th\u1eddi c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng v\u00e0 m\u1ee9c ki\u1ec3m so\u00e1t kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u00f3m t\u1eaft nhanh c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn b\u1ea1n s\u1ebd g\u1eb7p trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y v\u00e0 trong c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>Nam ch\u00e2m d\u1ef1a tr\u00ean s\u1eaft m\u1ec1m v\u00e0 v\u00ed d\u1ee5 h\u00e0ng ng\u00e0y<\/h3>\n<p>S\u1eaft m\u1ec1m l\u00e0 v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn cho nhi\u1ec1u lo\u1ea1i nam ch\u00e2m t\u1ea1m th\u1eddi v\u00ec n\u00f3 d\u1ec5 b\u1ecb magnet h\u00f3a nh\u01b0ng m\u1ea5t t\u1eeb t\u00ednh nhanh ch\u00f3ng khi tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i b\u1ecb lo\u1ea1i b\u1ecf. Ngh\u0129 \u0111\u1ebfn c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01a1n gi\u1ea3n nh\u01b0 tua v\u00edt nam ch\u00e2m ho\u1eb7c k\u1eb9p\u2014ch\u00fang d\u1ef1a v\u00e0o s\u1eaft m\u1ec1m \u0111\u1ec3 cung c\u1ea5p t\u1eeb t\u00ednh ch\u1ec9 khi c\u1ea7n thi\u1ebft. Nam ch\u00e2m s\u1eaft m\u1ec1m c\u00f3 gi\u00e1 th\u00e0nh ph\u1ea3i ch\u0103ng v\u00e0 hi\u1ec7u qu\u1ea3 cho c\u00e1c nhi\u1ec7m v\u1ee5 t\u1eeb t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 th\u1ea5p, ng\u1eafn h\u1ea1n.<\/p>\n<h3>Nam ch\u00e2m \u0111i\u1ec7n: C\u1ea5u t\u1ea1o v\u00e0 ki\u1ec3m so\u00e1t c\u01b0\u1eddng \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i<\/h3>\n<p>Nam ch\u00e2m \u0111i\u1ec7n n\u00e2ng cao kh\u1ea3 n\u0103ng c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb. Th\u00f4ng th\u01b0\u1eddng, ch\u00fang c\u00f3 cu\u1ed9n d\u00e2y qu\u1ea5n quanh l\u00f5i s\u1eaft m\u1ec1m. Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua, l\u00f5i nam ch\u00e2m; khi ng\u1eebng, n\u00f3 m\u1ea5t t\u1eeb t\u00ednh. \u0110i\u1ec1u l\u00e0m nam ch\u00e2m \u0111i\u1ec7n tr\u1edf n\u00ean qu\u00fd gi\u00e1 l\u00e0 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb\u2014b\u1ea1n ki\u1ec3m so\u00e1t t\u1eeb t\u00ednh ch\u1ec9 b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh thi\u1ebft b\u1ecb kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u1ea7n c\u1ea9u c\u00f4ng nghi\u1ec7p, r\u01a1 le, v\u00e0 th\u1eadm ch\u00ed m\u00e1y MRI.<\/p>\n<h3>C\u00e1c h\u1ee3p kim kh\u00e1c v\u00e0 nam ch\u00e2m t\u1ea1m th\u1eddi c\u1ea3m \u1ee9ng trong kim lo\u1ea1i phi s\u1eaft<\/h3>\n<p>Ngo\u00e0i s\u1eaft m\u1ec1m, m\u1ed9t s\u1ed1 h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n t\u1eeb t\u00ednh t\u1ea1m th\u1eddi trong \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5, m\u1ed9t s\u1ed1 h\u1ee3p kim th\u00e9p \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb th\u1ea5p, ph\u00f9 h\u1ee3p cho c\u00e1c vai tr\u00f2 t\u1eeb t\u00ednh t\u1ea1m th\u1eddi v\u1edbi \u0111\u1ed9 b\u1ec1n c\u1ea3i thi\u1ec7n. Th\u00eam v\u00e0o \u0111\u00f3, kim lo\u1ea1i phi s\u1eaft c\u00f3 th\u1ec3 c\u00f3 t\u1eeb t\u00ednh c\u1ea3m \u1ee9ng, m\u1eb7c d\u00f9 th\u01b0\u1eddng y\u1ebfu v\u00e0 ng\u1eafn h\u1ea1n. C\u00e1c h\u1ee3p kim v\u00e0 v\u1eadt li\u1ec7u n\u00e0y c\u00f3 vai tr\u00f2 \u0111\u1eb7c th\u00f9 trong c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn v\u00e0 c\u00e1c nam ch\u00e2m \u0111i\u1ec7n \u0111\u1eb7c bi\u1ec7t.<\/p>\n<h3>B\u1ea3ng so s\u00e1nh \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<th>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m S\u1eaft m\u1ec1m<\/td>\n<td>R\u1ebb, nhanh ch\u00f3ng trong qu\u00e1 tr\u00ecnh t\u1eeb t\u00ednh<\/td>\n<td>D\u1ec5 m\u1ea5t t\u1eeb, \u0111\u1ed9 m\u1ea1nh th\u1ea5p<\/td>\n<td>D\u1ee5ng c\u1ee5 c\u1ea7m tay, thi\u1ebft b\u1ecb \u0111\u01a1n gi\u1ea3n<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m \u0111i\u1ec7n<\/td>\n<td>\u0110i\u1ec1u khi\u1ec3n bi\u1ebfn \u0111\u1ed5i, \u0111\u1ed9 m\u1ea1nh cao<\/td>\n<td>C\u1ea7n ngu\u1ed3n \u0111i\u1ec7n, v\u1ea5n \u0111\u1ec1 nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>C\u1ea7n c\u1ea9u c\u00f4ng nghi\u1ec7p, r\u01a1 le, MRI<\/td>\n<\/tr>\n<tr>\n<td>C\u00e1c lo\u1ea1i h\u1ee3p kim<\/td>\n<td>B\u1ec1n b\u1ec9, \u0111\u1eb7c t\u00ednh t\u00f9y ch\u1ec9nh<\/td>\n<td>\u0110\u1eaft h\u01a1n, h\u1ea1n ch\u1ebf v\u1ec1 kh\u1ea3 n\u0103ng cung c\u1ea5p<\/td>\n<td>C\u1ea3m bi\u1ebfn, thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>V\u1eadt li\u1ec7u l\u00f5i \u0111i\u1ec7n t\u1eeb chuy\u00ean d\u1ee5ng c\u1ee7a NBAEM<\/h3>\n<p>T\u1ea1i NBAEM, ch\u00fang t\u00f4i t\u1eadp trung s\u1ea3n xu\u1ea5t c\u00e1c l\u00f5i ti\u00ean ti\u1ebfn gi\u00fap n\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a \u0111i\u1ec7n t\u1eeb\u2014v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 th\u1ea5m t\u1ed1i \u01b0u v\u00e0 gi\u1ea3m t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng. C\u00e1c l\u00f5i t\u1eeb m\u1ec1m hi\u1ec7u su\u1ea5t cao c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p ph\u1ea3n h\u1ed3i t\u1eeb \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n c\u00f4ng nghi\u1ec7p kh\u1eaft khe. \u0110i\u1ec1u n\u00e0y khi\u1ebfn l\u00f5i c\u1ee7a NBAEM tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn tin c\u1eady khi b\u1ea1n c\u1ea7n nam ch\u00e2m t\u1ea1m th\u1eddi ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, \u0111\u00e1ng tin c\u1eady, ph\u00f9 h\u1ee3p cho th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<p>\u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u t\u1eeb, h\u00e3y xem <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 t\u1eeb ch\u1ea5t g\u00ec?<\/a> <\/span><\/strong>v\u00e0 khoa h\u1ecdc \u0111\u1eb1ng sau h\u00e0nh vi t\u1eeb t\u00ednh t\u1ea1i <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-bh-curve\/\" target=\"_blank\" rel=\"noopener\">\u0110\u01b0\u1eddng cong BH l\u00e0 g\u00ec?<\/a>.<\/span><\/strong><\/p>\n<h2>Nam ch\u00e2m t\u1ea1m th\u1eddi v\u00e0 v\u0129nh vi\u1ec5n: So s\u00e1nh chi ti\u1ebft<\/h2>\n<p>Hi\u1ec3u r\u00f5 c\u00e1ch nam ch\u00e2m t\u1ea1m th\u1eddi so s\u00e1nh v\u1edbi nam ch\u00e2m v\u0129nh vi\u1ec5n l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng khi ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n ho\u1eb7c s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch nhanh t\u1eadp trung v\u00e0o kh\u1ea3 n\u0103ng gi\u1eef t\u1eeb, \u0111\u1ed9 m\u1ea1nh v\u00e0 v\u1eadt li\u1ec7u.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>Nam ch\u00e2m t\u1ea1m th\u1eddi<\/th>\n<th>Nam ch\u00e2m v\u0129nh c\u1eedu<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Kh\u1ea3 n\u0103ng gi\u1eef t\u1eeb<\/strong><\/td>\n<td>M\u1ea5t t\u1eeb t\u00ednh nhanh ch\u00f3ng khi lo\u1ea1i b\u1ecf tr\u01b0\u1eddng ngo\u00e0i<\/td>\n<td>Duy tr\u00ec t\u1eeb t\u00ednh theo th\u1eddi gian m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/strong><\/td>\n<td>Th\u00f4ng th\u01b0\u1eddng y\u1ebfu h\u01a1n; ph\u1ee5 thu\u1ed9c v\u00e0o y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i (d\u00f2ng \u0111i\u1ec7n, tr\u01b0\u1eddng)<\/td>\n<td>M\u1ea1nh v\u00e0 \u1ed5n \u0111\u1ecbnh d\u1ef1a tr\u00ean lo\u1ea1i v\u1eadt li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u<\/strong><\/td>\n<td>S\u1eaft m\u1ec1m, th\u00e9p silic, h\u1ee3p kim ferromagnetic<\/td>\n<td>Neodymium, samarium-cobalt, ferrite<\/td>\n<\/tr>\n<tr>\n<td><strong>Tu\u1ed5i th\u1ecd<\/strong><\/td>\n<td>H\u1ea1n ch\u1ebf; m\u1ea5t \u0111i do qu\u00e1 tr\u00ecnh kh\u1eed t\u1eeb ho\u1eb7c thay \u0111\u1ed5i v\u1eadt l\u00fd<\/td>\n<td>K\u00e9o d\u00e0i l\u00e2u; ch\u1ed1ng m\u1ea5t t\u1eeb t\u00ednh<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec1u khi\u1ec3n<\/strong><\/td>\n<td>C\u00f3 th\u1ec3 b\u1eadt\/t\u1eaft b\u1eb1ng ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>Tr\u01b0\u1eddng t\u1eeb c\u1ed1 \u0111\u1ecbnh, kh\u00f4ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ma tr\u1eadn \u1ee9ng d\u1ee5ng k\u00e8m s\u01a1 \u0111\u1ed3 quy\u1ebft \u0111\u1ecbnh<\/h3>\n<ul>\n<li><strong>C\u1ea7n t\u1eeb t\u00ednh \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c kh\u00f4ng?<\/strong> Ch\u1ecdn nam ch\u00e2m t\u1ea1m th\u1eddi nh\u01b0 nam ch\u00e2m \u0111i\u1ec7n.<\/li>\n<li><strong>C\u1ea7n l\u1ef1c t\u1eeb m\u1ea1nh, v\u0129nh vi\u1ec5n kh\u00f4ng m\u1ea5t?<\/strong> Ch\u1ecdn nam ch\u00e2m v\u0129nh vi\u1ec5n.<\/li>\n<li><strong>Quan t\u00e2m \u0111\u1ebfn ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng?<\/strong> Nam ch\u00e2m v\u0129nh vi\u1ec5n kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n, t\u1ea1m th\u1eddi c\u00f3.<\/li>\n<li><strong>Mu\u1ed1n d\u1ec5 d\u00e0ng b\u1eadt\/t\u1eaft t\u1eeb?<\/strong> Nam ch\u00e2m t\u1ea1m th\u1eddi n\u1ed5i b\u1eadt trong c\u00e1c tr\u01b0\u1eddng t\u1eeb theo y\u00eau c\u1ea7u.<\/li>\n<\/ul>\n<p>S\u01a1 \u0111\u1ed3 quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n n\u00e0y gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn:<\/p>\n<ol>\n<li>\u0110i\u1ec1u khi\u1ec3n bi\u1ebfn \u0111\u1ed5i c\u01b0\u1eddng \u0111\u1ed9 ho\u1eb7c b\u1eadt\/t\u1eaft c\u00f3 quan tr\u1ecdng kh\u00f4ng?<br \/>\n\u2192 C\u00f3: Nam ch\u00e2m t\u1ea1m th\u1eddi<br \/>\n\u2192 Kh\u00f4ng: Nam ch\u00e2m v\u0129nh c\u1eedu<\/li>\n<li>Nam ch\u00e2m c\u00f3 \u0111\u1ed1i m\u1eb7t v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao ho\u1eb7c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t kh\u00f4ng?<br \/>\n\u2192 C\u00f3: Nam ch\u00e2m v\u0129nh c\u1eedu (m\u1ed9t s\u1ed1 h\u1ee3p kim x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng t\u1ed1t h\u01a1n)<br \/>\n\u2192 Kh\u00f4ng: Nam ch\u00e2m t\u1ea1m th\u1eddi c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng<\/li>\n<\/ol>\n<h3>T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn M\u00f4i tr\u01b0\u1eddng v\u00e0 B\u1ec1n v\u1eefng<\/h3>\n<p>Nam ch\u00e2m t\u1ea1m th\u1eddi th\u01b0\u1eddng y\u00eau c\u1ea7u n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 duy tr\u00ec t\u1eeb t\u00ednh, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 d\u1ea5u ch\u00e2n m\u00f4i tr\u01b0\u1eddng\u2014\u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p. Nam ch\u00e2m v\u0129nh c\u1eedu kh\u00f4ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng sau khi \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a, l\u00e0m cho ch\u00fang b\u1ec1n v\u1eefng h\u01a1n trong c\u00e1c \u1ee9ng d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n<p>Tuy nhi\u00ean, nam ch\u00e2m v\u0129nh c\u1eedu th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm nh\u01b0 neodymium, li\u00ean quan \u0111\u1ebfn c\u00e1c th\u00e1ch th\u1ee9c khai th\u00e1c v\u00e0 lo ng\u1ea1i v\u1ec1 ngu\u1ed3n cung. Nam ch\u00e2m t\u1ea1m th\u1eddi ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o c\u00e1c v\u1eadt li\u1ec7u s\u1eaft t\u1eeb ph\u1ed5 bi\u1ebfn nh\u01b0 s\u1eaft m\u1ec1m, c\u00f3 g\u00e1nh n\u1eb7ng m\u00f4i tr\u01b0\u1eddng nh\u1ecf h\u01a1n.<\/p>\n<p><strong>T\u00f3m l\u1ea1i:<\/strong><\/p>\n<ul>\n<li>Nam ch\u00e2m t\u1ea1m th\u1eddi: Ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao h\u01a1n nh\u01b0ng \u00edt ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u hi\u1ebfm<\/li>\n<li>Nam ch\u00e2m v\u0129nh c\u1eedu: Kh\u00f4ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng sau khi t\u1eeb h\u00f3a nh\u01b0ng g\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1ec1 ngu\u1ed3n cung<\/li>\n<\/ul>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft v\u1ec1 nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 c\u00e1ch so s\u00e1nh, h\u00e3y xem <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/what-is-permanent-magnet\/\" target=\"_blank\" rel=\"noopener\">Nam ch\u00e2m v\u0129nh c\u1eedu l\u00e0 g\u00ec?<\/a><\/span><\/strong>.<\/p>\n<hr \/>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa nam ch\u00e2m t\u1ea1m th\u1eddi v\u00e0 v\u0129nh c\u1eedu ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n v\u1ec1 kh\u1ea3 n\u0103ng gi\u1eef, ki\u1ec3m so\u00e1t, c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 t\u00ednh b\u1ec1n v\u1eefng. Hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y gi\u00fap b\u1ea1n \u0111\u01b0a ra l\u1ef1a ch\u1ecdn th\u00f4ng minh v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh.<\/p>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf: N\u01a1i nam ch\u00e2m t\u1ea1m th\u1eddi t\u1ecfa s\u00e1ng<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/Temporary_Magnets_Industrial_and_Consumer_Applicat.webp\" alt=\"\u1ee8ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 ti\u00eau d\u00f9ng c\u1ee7a nam ch\u00e2m t\u1ea1m th\u1eddi\" \/><\/p>\n<p>Nam ch\u00e2m t\u1ea1m th\u1eddi \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u01a1i c\u1ea7n tr\u01b0\u1eddng t\u1eeb theo y\u00eau c\u1ea7u.<\/p>\n<h3>\u1ee8ng d\u1ee5ng C\u00f4ng nghi\u1ec7p<\/h3>\n<ul>\n<li><strong>C\u1ea9u:<\/strong> Nam ch\u00e2m \u0111i\u1ec7n n\u00e2ng c\u00e1c lo\u1ea1i th\u00e9p n\u1eb7ng v\u00e0 kim lo\u1ea1i ph\u1ebf li\u1ec7u m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3, b\u1eadt\/t\u1eaft l\u1ef1c t\u1eeb theo nhu c\u1ea7u.<\/li>\n<li><strong>M\u00e1y MRI:<\/strong> S\u1eed d\u1ee5ng nam ch\u00e2m t\u1ea1m th\u1eddi m\u1ea1nh \u0111\u1ec3 t\u1ea1o ra c\u00e1c qu\u00e9t c\u01a1 th\u1ec3 chi ti\u1ebft m\u00e0 kh\u00f4ng c\u1ea7n v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu.<\/li>\n<li><strong>C\u00f4ng t\u1eafc r\u01a1 le \u00f4 t\u00f4:<\/strong> D\u1ef1a v\u00e0o t\u1eeb t\u00ednh t\u1ea1m th\u1eddi \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n m\u1ea1ch \u0111i\u1ec7n m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/li>\n<\/ul>\n<h3>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/h3>\n<ul>\n<li><strong>Loa:<\/strong> S\u1eed d\u1ee5ng electromagnet \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh \u00e2m thanh b\u1eb1ng c\u00e1ch di chuy\u1ec3n m\u00e0ng loa.<\/li>\n<li><strong>\u1ed4 c\u1ee9ng:<\/strong> Nam ch\u00e2m t\u1ea1m th\u1eddi gi\u00fap \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch magnet h\u00f3a c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 tr\u00ean \u0111\u0129a.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn t\u1eeb:<\/strong> Ph\u00e1t hi\u1ec7n v\u1ecb tr\u00ed ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng trong c\u00e1c thi\u1ebft b\u1ecb, s\u1eed d\u1ee5ng t\u1eeb t\u00ednh t\u1ea1m th\u1eddi \u0111\u1ec3 ph\u1ea3n h\u1ed3i ch\u00ednh x\u00e1c theo y\u00eau c\u1ea7u.<\/li>\n<\/ul>\n<h3>C\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i<\/h3>\n<ul>\n<li><strong>\u0110i\u1ec1u khi\u1ec3n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o:<\/strong> Tuabin gi\u00f3 v\u00e0 b\u1ed9 theo d\u00f5i n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi s\u1eed d\u1ee5ng electromagnet \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>Robot:<\/strong> Nam ch\u00e2m t\u1ea1m th\u1eddi cung c\u1ea5p kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t linh ho\u1ea1t v\u00e0 ki\u1ec3m so\u00e1t chuy\u1ec3n \u0111\u1ed9ng, th\u00edch nghi nhanh ch\u00f3ng trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5.<\/li>\n<\/ul>\n<h3>Vai tr\u00f2 c\u1ee7a NBAEM trong vi\u1ec7c th\u00fac \u0111\u1ea9y nam ch\u00e2m t\u1ea1m th\u1eddi<\/h3>\n<p>NBAEM chuy\u00ean v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u t\u1eeb t\u00ednh ch\u1ea5t l\u01b0\u1ee3ng cao gi\u00fap n\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a electromagnet. C\u00e1c th\u00e0nh ph\u1ea7n s\u00e1ng t\u1ea1o c\u1ee7a h\u1ecd gi\u00fap c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u1ea1t \u0111\u01b0\u1ee3c nam ch\u00e2m t\u1ea1m th\u1eddi m\u1ea1nh m\u1ebd h\u01a1n, \u0111\u00e1ng tin c\u1eady h\u01a1n v\u1edbi ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng c\u1ea3i thi\u1ec7n.<\/p>\n<p>H\u1ee3p t\u00e1c v\u1edbi nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady nh\u01b0 NBAEM \u0111\u1ea3m b\u1ea3o nam ch\u00e2m t\u1ea1m th\u1eddi c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 chi ph\u00ed l\u00e2u d\u00e0i.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 xem nam ch\u00e2m t\u1ea1m th\u1eddi l\u00e0 g\u00ec, c\u00e1c lo\u1ea1i, \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p d\u00e0nh cho k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 s\u00e1ng t\u1ea1o \u0111ang t\u00ecm ki\u1ebfm v\u1eadt li\u1ec7u t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"author":1,"featured_media":3316,"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-3318","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\/Temporary_Magnets_Industrial_and_Consumer_Applicat.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3318","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=3318"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3318\/revisions"}],"predecessor-version":[{"id":3319,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3318\/revisions\/3319"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3316"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}