{"id":3294,"date":"2025-10-30T14:10:47","date_gmt":"2025-10-30T14:10:47","guid":{"rendered":"https:\/\/nbaem.com\/?p=3294"},"modified":"2025-10-31T08:58:17","modified_gmt":"2025-10-31T08:58:17","slug":"all-you-need-to-know-about-sintered-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/all-you-need-to-know-about-sintered-magnets\/","title":{"rendered":"T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 Nam ch\u00e2m Sintered"},"content":{"rendered":"<h2>Sintered Magnets l\u00e0 g\u00ec? M\u1ed9t ph\u00e2n t\u00edch nhanh<\/h2>\n<div id=\"attachment_3293\" style=\"width: 570px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3293\" class=\"size-full wp-image-3293\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC.webp\" alt=\"Nam ch\u00e2m sintered\" width=\"560\" height=\"315\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC-18x10.webp 18w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC-200x113.webp 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC-300x169.webp 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC-400x225.webp 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC.webp 560w\" sizes=\"(max-width: 560px) 100vw, 560px\" \/><p id=\"caption-attachment-3293\" class=\"wp-caption-text\">Nam ch\u00e2m sintered<\/p><\/div>\n<p>B\u1ea1n c\u00f3 th\u1ec3 \u0111ang t\u1ef1 h\u1ecfi, ch\u00ednh x\u00e1c th\u00ec nam ch\u00e2m sintered l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao ch\u00fang l\u1ea1i quan tr\u1ecdng nh\u01b0 v\u1eady? N\u00f3i \u0111\u01a1n gi\u1ea3n, nam ch\u00e2m sintered l\u00e0 m\u1ed9t lo\u1ea1i nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch n\u00e9n v\u00e0 nung c\u00e1c b\u1ed9t kim lo\u1ea1i m\u00e0 kh\u00f4ng nung ch\u1ea3y ho\u00e0n to\u00e0n ch\u00fang. Qu\u00e1 tr\u00ecnh n\u00e0y k\u1ebft h\u1ee3p c\u00e1c b\u1ed9t th\u00e0nh m\u1ed9t kh\u1ed1i r\u1eafn \u0111\u1eb7c v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n<h3>Th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i v\u00e0 c\u00e1c lo\u1ea1i<\/h3>\n<p>H\u1ea7u h\u1ebft c\u00e1c nam ch\u00e2m sintered \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm, trong \u0111\u00f3 neodymium- s\u1eaft-boron (NdFeB) n\u1ed5i b\u1eadt nh\u1ea5t. <span style=\"color: #000000;\"><a href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">nam ch\u00e2m NdFeB <\/span><\/strong><\/a>a<\/span>\u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi s\u1ee9c m\u1ea1nh \u0111\u00e1ng kinh ng\u1ea1c, nh\u1edd c\u00e1c k\u1ef9 thu\u1eadt luy\u1ec7n kim b\u1ed9t ti\u00ean ti\u1ebfn. C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn kh\u00e1c bao g\u1ed3m<a href=\"https:\/\/en.wikipedia.org\/wiki\/Samarium%E2%80%93cobalt_magnet\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\"> nam ch\u00e2m samarium-cobalt (SmCo)<\/span><\/strong><\/a>, cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi. C\u1ea3 hai lo\u1ea1i \u0111\u1ec1u d\u1ef1a tr\u00ean c\u00e1c h\u1ed7n h\u1ee3p ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm, s\u1eaft, v\u00e0 \u0111\u00f4i khi cobalt ho\u1eb7c dysprosium \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh hi\u1ec7u su\u1ea5t t\u1eeb tr\u01b0\u1eddng.<\/p>\n<h3>T\u1ea1i sao ch\u1ecdn nam ch\u00e2m sintered? Khoa h\u1ecdc trong m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan<\/h3>\n<p>T\u1ea1i sao l\u1ea1i ch\u1ecdn nam ch\u00e2m sintered thay v\u00ec c\u00e1c lo\u1ea1i kh\u00e1c? B\u00ed quy\u1ebft n\u1eb1m \u1edf qu\u00e1 tr\u00ecnh sintering ch\u00e2n kh\u00f4ng, gi\u00fap s\u1eafp x\u1ebfp c\u00e1c h\u1ea1t vi m\u00f4 \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a n\u0103ng l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c nam ch\u00e2m c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1eeb cao (kh\u00e1ng l\u1ea1i qu\u00e1 tr\u00ecnh m\u1ea5t t\u1eeb), \u0111\u1ed9 l\u01b0u t\u1eeb m\u1ea1nh (t\u1eeb t\u00ednh c\u00f2n l\u1ea1i sau khi lo\u1ea1i b\u1ecf tr\u01b0\u1eddng ngo\u00e0i), v\u00e0 s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i (BHmax), m\u1ed9t ch\u1ec9 s\u1ed1 ch\u00ednh \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m. Th\u00eam v\u00e0o \u0111\u00f3, nam ch\u00e2m sintered th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc v\u00e0 \u1ed5n \u0111\u1ecbnh t\u1ed1t h\u01a1n so v\u1edbi nam ch\u00e2m li\u00ean k\u1ebft.<\/p>\n<p>T\u00f3m l\u1ea1i, nam ch\u00e2m sintered mang l\u1ea1i l\u1ef1c t\u1eeb m\u1ea1nh m\u1ebd, \u0111\u00e1ng tin c\u1eady, r\u1ea5t quan tr\u1ecdng cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 \u00f4 t\u00f4. Hi\u1ec3u r\u00f5 th\u00e0nh ph\u1ea7n v\u00e0 c\u00e1ch ch\u00fang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t gi\u00fap ch\u00fang ta tr\u00e2n tr\u1ecdng l\u00fd do t\u1ea1i sao nam ch\u00e2m sintered l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a nhi\u1ec1u c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn.<\/p>\n<h2>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc c\u00e1ch s\u1ea3n xu\u1ea5t nam ch\u00e2m NdFeB sintered<\/h2>\n<p>Vi\u1ec7c s\u1ea3n xu\u1ea5t nam ch\u00e2m NdFeB sintered \u0111\u00f2i h\u1ecfi nhi\u1ec1u b\u01b0\u1edbc ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t cao v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea1i Vi\u1ec7t Nam n\u01a1i \u0111\u1ed9 tin c\u1eady l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p>\n<h3>Nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 chu\u1ea9n b\u1ecb h\u1ee3p kim<\/h3>\n<p>B\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c tr\u1ed9n c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 nh\u01b0 neodymium, s\u1eaft, v\u00e0 boron \u2014 c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kim lo\u1ea1i b\u1ed9t NdFeB. \u0110\u00f4i khi, c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 dysprosium \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 t\u1ea1o h\u1ee3p kim NdFeB c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1eeb cao, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng. C\u00e1c kim lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c nung ch\u1ea3y c\u00f9ng nhau \u0111\u1ec3 t\u1ea1o ra h\u1ee3p kim \u0111\u1ed3ng nh\u1ea5t.<\/p>\n<h3>S\u1ea3n xu\u1ea5t b\u1ed9t v\u00e0 c\u0103n ch\u1ec9nh<\/h3>\n<p>Ti\u1ebfp theo, h\u1ee3p kim \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh b\u1ed9t m\u1ecbn. B\u1ed9t n\u00e0y \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh c\u1ea9n th\u1eadn trong m\u1ed9t tr\u01b0\u1eddng t\u1eeb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c mi\u1ec1n t\u1eeb \u0111\u1ec1u h\u01b0\u1edbng c\u00f9ng m\u1ed9t chi\u1ec1u \u2014 b\u01b0\u1edbc c\u0103n ch\u1ec9nh n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng (BHmax). B\u1ed9t \u0111\u1ed3ng nh\u1ea5t gi\u00fap \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ea1nh t\u1eeb v\u00e0 \u0111\u1ed9 l\u01b0u t\u1eeb t\u1ed1t h\u01a1n.<\/p>\n<h3>Sintering v\u00e0 x\u1eed l\u00fd sau<\/h3>\n<p>B\u1ed9t \u0111\u00e3 c\u0103n ch\u1ec9nh sau \u0111\u00f3 \u0111\u01b0\u1ee3c n\u00e9n v\u00e0o khu\u00f4n v\u00e0 ti\u1ebfn h\u00e0nh sintering \u2014 nung \u1edf nhi\u1ec7t \u0111\u1ed9 g\u1ea7n \u0111i\u1ec3m n\u00f3ng ch\u1ea3y trong qu\u00e1 tr\u00ecnh sintering ch\u00e2n kh\u00f4ng. B\u01b0\u1edbc n\u00e0y k\u1ebft h\u1ee3p c\u00e1c h\u1ea1t b\u1ed9t th\u00e0nh m\u1ed9t nam ch\u00e2m r\u1eafn ch\u1eafc trong khi gi\u1eef nguy\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb. Sau khi sintering, nam ch\u00e2m th\u01b0\u1eddng tr\u1ea3i qua x\u1eed l\u00fd nhi\u1ec7t v\u00e0 gia c\u00f4ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n<p>Cu\u1ed1i c\u00f9ng, c\u00e1c nam ch\u00e2m tr\u1ea3i qua c\u00e1c ki\u1ec3m tra ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t v\u1ec1 \u0111\u1ed9 m\u1ea1nh t\u1eeb, \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n\u2014\u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong xe \u0111i\u1ec7n v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o t\u1ea1i Vi\u1ec7t Nam. B\u1ea5t k\u1ef3 l\u1ed7i n\u00e0o \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n s\u1edbm \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t h\u00e0ng \u0111\u1ea7u trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p>B\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc n\u00e0y, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1o ra c\u00e1c lo\u1ea1i nam ch\u00e2m neodymium nung sinter ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau tr\u00ean kh\u1eafp Vi\u1ec7t Nam.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh v\u00e0 Hi\u1ec7u su\u1ea5t c\u1ee7a Nam ch\u00e2m nung sinter<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn nam ch\u00e2m nung sinter, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c lo\u1ea1i NdFeB (neodymium- s\u1eaft-boron), hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh t\u1eeb v\u00e0 v\u1eadt l\u00fd ch\u00ednh.<\/p>\n<h3>\u0110\u1ed9 m\u1ea1nh t\u1eeb<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 gi\u1eef t\u1eeb (Br):<\/strong> \u0110i\u1ec1u n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u1ee7a nam ch\u00e2m gi\u1eef m\u1ed9t tr\u01b0\u1eddng t\u1eeb m\u1ea1nh sau khi \u0111\u01b0\u1ee3c magnet h\u00f3a. C\u00e1c nam ch\u00e2m NdFeB nung sinter c\u00f3 \u0111\u1ed9 l\u01b0u gi\u1eef t\u1eeb cao, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh nh\u1ea5t hi\u1ec7n c\u00f3.<\/li>\n<li><strong>\u0110\u1ed9 c\u01b0\u1ee1ng t\u1eeb (Hc):<\/strong> \u0110i\u1ec1u n\u00e0y \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb c\u1ee7a nam ch\u00e2m. C\u00e1c h\u1ee3p kim NdFeB c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao, \u0111\u00f4i khi \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng b\u1eb1ng m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf dysprosium ho\u1eb7c c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c, duy tr\u00ec t\u1eeb t\u00ednh ngay c\u1ea3 d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c trong c\u00e1c tr\u01b0\u1eddng t\u1eeb \u0111\u1ed1i l\u1eadp.<\/li>\n<li><strong>M\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng (BHmax):<\/strong> \u0110\u00e2y l\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u1eeb \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong m\u1ed9t th\u1ec3 t\u00edch c\u1ee7a nam ch\u00e2m\u2014gi\u00e1 tr\u1ecb cao h\u01a1n c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m m\u1ea1nh h\u01a1n. C\u00e1c nam ch\u00e2m nung sinter th\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i h\u01a1n c\u00e1c lo\u1ea1i li\u00ean k\u1ebft v\u1ec1 s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao.<\/li>\n<\/ul>\n<h3>\u0110\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd v\u00e0 m\u00f4i tr\u01b0\u1eddng<\/h3>\n<ul>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n:<\/strong> M\u1ed9t th\u00e1ch th\u1ee9c ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi nam ch\u00e2m nung sinter l\u00e0 kh\u1ea3 n\u0103ng b\u1ecb \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c kh\u1eafc nghi\u1ec7t. \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 ho\u1eb7c x\u1eed l\u00fd b\u1ec1 m\u1eb7t l\u00e0 ti\u00eau chu\u1ea9n \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m.<\/li>\n<li><strong>\u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc:<\/strong> C\u00e1c nam ch\u00e2m n\u00e0y d\u1ec5 v\u1ee1 nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n c\u1ea5u tr\u00fac t\u1ed1t khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch. Ch\u00fang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t qua quy tr\u00ecnh nung sinter ch\u00e2n kh\u00f4ng, gi\u00fap k\u1ebft t\u1ee5 v\u1eadt li\u1ec7u m\u1ed9t c\u00e1ch \u0111\u1eb7c ch\u1eafc, gi\u1ea3m thi\u1ec3u l\u1ed7i.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9:<\/strong> C\u00e1c lo\u1ea1i nam ch\u00e2m neodymium nung sinter kh\u00e1c nhau cung c\u1ea5p c\u00e1c kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t kh\u00e1c nhau. M\u1ed9t s\u1ed1 lo\u1ea1i c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t tr\u00ean 150\u00b0C, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u00f4 t\u00f4 \u0111\u00f2i h\u1ecfi cao.<\/li>\n<\/ul>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng khi l\u1ef1a ch\u1ecdn nam ch\u00e2m nung sinter cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n\u2014c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 b\u1ec1n v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. V\u00ed d\u1ee5, n\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u0111\u1ed9 \u1ea9m, vi\u1ec7c ch\u1ecdn lo\u1ea1i ph\u1ee7 ho\u1eb7c lo\u1ea1i c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao \u0111\u1eb7c bi\u1ec7t s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1ch c\u00e1c nam ch\u00e2m n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m d\u00f9ng trong n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n<h2>C\u00e1c \u1ee8ng d\u1ee5ng h\u00e0ng \u0111\u1ea7u n\u01a1i Nam ch\u00e2m nung sinter t\u1ecfa s\u00e1ng trong \u0110\u1ed5i m\u1edbi Th\u1ef1c t\u1ebf<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-large wp-image-3292\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-1024x683.webp\" alt=\"\" width=\"1024\" height=\"683\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-18x12.webp 18w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-200x133.webp 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-300x200.webp 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-400x267.webp 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-600x400.webp 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-768x512.webp 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-800x534.webp 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-1024x683.webp 1024w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb-1200x800.webp 1200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_Magnets_in_Renewable_Energy_7gFZJNMNb.webp 1300w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>C\u00e1c nam ch\u00e2m nung sinter, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i l\u00e0m t\u1eeb h\u1ee3p kim b\u1ed9t NdFeB, \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong m\u1ed9t s\u1ed1 ng\u00e0nh c\u00f4ng nghi\u1ec7p th\u00fa v\u1ecb nh\u1ea5t ng\u00e0y nay. C\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb m\u1ea1nh m\u1ebd v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a ch\u00fang khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p \u01b0u ti\u00ean trong nhi\u1ec1u \u1ee9ng d\u1ee5ng ph\u00f9 h\u1ee3p v\u1edbi th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<h3>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 xe \u0111i\u1ec7n<\/h3>\n<ul>\n<li><strong>Tuabin gi\u00f3<\/strong>: Nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm nung sintered cung c\u1ea5p m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao v\u00e0 \u0111\u1ed9 tin c\u1eady, gi\u00fap turbine gi\u00f3 t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<li><strong>Xe \u0111i\u1ec7n (EVs)<\/strong>: Nh\u1eefng nam ch\u00e2m n\u00e0y cung c\u1ea5p \u0111\u1ed9 c\u1ee9ng t\u1eeb cao v\u00e0 \u0111\u1ed9 ph\u1ee5c h\u1ed3i c\u1ea7n thi\u1ebft cho \u0111\u1ed9ng c\u01a1 m\u1ea1nh m\u1ebd, nh\u1ecf g\u1ecdn trong xe \u0111i\u1ec7n, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 ph\u1ea1m vi l\u00e1i.<\/li>\n<li><strong>L\u1ef1a ch\u1ecdn kh\u00f4ng ch\u1ee9a Dysprosium<\/strong>: C\u00e1c s\u00e1ng ki\u1ebfn trong nam ch\u00e2m sintered kh\u00f4ng ch\u1ee9a dysprosium \u0111ang gi\u1ea3m chi ph\u00ed v\u00e0 n\u00e2ng cao t\u00ednh b\u1ec1n v\u1eefng trong c\u00f4ng ngh\u1ec7 xanh.<\/li>\n<\/ul>\n<h3>\u0110i\u1ec7n t\u1eed v\u00e0 C\u00f4ng ngh\u1ec7 Y t\u1ebf<\/h3>\n<ul>\n<li><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/strong>: T\u1eeb \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh \u0111\u1ebfn tai nghe, nam ch\u00e2m NdFeB sintered t\u00edch h\u1ee3p s\u1ee9c m\u1ea1nh t\u1eeb l\u1edbn v\u00e0o kh\u00f4ng gian nh\u1ecf.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb y t\u1ebf<\/strong>: Trong m\u00e1y MRI v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt ch\u00ednh x\u00e1c, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang r\u1ea5t quan tr\u1ecdng.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111eo v\u00e0 C\u1ea3m bi\u1ebfn<\/strong>: Nam ch\u00e2m nh\u1ecf g\u1ecdn v\u00e0 hi\u1ec7u qu\u1ea3 n\u00e2ng cao hi\u1ec7u su\u1ea5t trong c\u00e1c thi\u1ebft b\u1ecb theo d\u00f5i s\u1ee9c kh\u1ecfe ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam.<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng C\u00f4ng nghi\u1ec7p v\u00e0 H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/strong>: Nam ch\u00e2m sintered ch\u1eafc ch\u1eafn cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c \u0111\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p c\u1ea7n l\u1ef1c t\u1eeb l\u00e2u d\u00e0i, \u0111\u00e1ng tin c\u1eady.<\/li>\n<li><strong>C\u00e1c th\u00e0nh ph\u1ea7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/strong>: H\u1ee3p kim NdFeB c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1eeb cao ch\u1ecbu \u0111\u1ef1ng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t trong khi duy tr\u00ec hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh.<\/li>\n<li><strong>T\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 Robot<\/strong>: \u0110\u1ed9 ch\u00ednh x\u00e1c v\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a ch\u00fang cho ph\u00e9p robot c\u00f4ng nghi\u1ec7p v\u00e0 h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng nhanh h\u01a1n, ch\u00ednh x\u00e1c h\u01a1n.<\/li>\n<\/ul>\n<p>C\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y l\u00e0m n\u1ed5i b\u1eadt l\u00fd do t\u1ea1i sao nam ch\u00e2m sintered v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong c\u00e1c l\u0129nh v\u1ef1c t\u1eadp trung v\u00e0o \u0111\u1ed5i m\u1edbi, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<h2>Nam ch\u00e2m Sintered so v\u1edbi Nam ch\u00e2m Bonded: Lo\u1ea1i n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n<\/h2>\n<p>Khi ch\u1ecdn gi\u1eefa nam ch\u00e2m sintered v\u00e0 bonded, hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 chi ph\u00ed. C\u1ea3 hai \u0111\u1ec1u c\u00f3 \u01b0u \u0111i\u1ec3m ri\u00eang, t\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<h3>So s\u00e1nh \u0111\u1ed1i \u0111\u1ea7u<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>Nam ch\u00e2m sinter<\/th>\n<th>Nam Ch\u00e2m Li\u00ean K\u1ebft<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/strong><\/td>\n<td>Cao h\u01a1n (s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng NdFeB m\u1ea1nh h\u01a1n)<\/td>\n<td>Th\u1ea5p h\u01a1n nh\u01b0ng \u1ed5n \u0111\u1ecbnh h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td><strong>Quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/strong><\/td>\n<td>Kim lo\u1ea1i b\u1ed9t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n kim ch\u00e2n kh\u00f4ng<\/td>\n<td>Tr\u1ed9n b\u1ed9t v\u1edbi nh\u1ef1a, sau \u0111\u00f3 \u0111\u00fac<\/td>\n<\/tr>\n<tr>\n<td><strong>Linh ho\u1ea1t v\u1ec1 h\u00ecnh d\u1ea1ng<\/strong><\/td>\n<td>H\u1ea1n ch\u1ebf, ch\u1ee7 y\u1ebfu l\u00e0 kh\u1ed1i v\u00e0 v\u00f2ng<\/td>\n<td>R\u1ea5t linh ho\u1ea1t, h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 b\u1ec1n<\/strong><\/td>\n<td>D\u1ec5 v\u1ee1 h\u01a1n nh\u01b0ng ch\u1ecbu nhi\u1ec7t cao h\u01a1n<\/td>\n<td>Ch\u1ecbu va \u0111\u1eadp t\u1ed1t h\u01a1n, ch\u1ecbu nhi\u1ec7t th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong><\/td>\n<td>C\u1ea7n ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 (d\u1ec5 b\u1ecb \u0103n m\u00f2n)<\/td>\n<td>Th\u01b0\u1eddng t\u1ed1t h\u01a1n nh\u1edd li\u00ean k\u1ebft nh\u1ef1a<\/td>\n<\/tr>\n<tr>\n<td><strong>Gi\u00e1 th\u00e0nh<\/strong><\/td>\n<td>Chi ph\u00ed ban \u0111\u1ea7u cao h\u01a1n<\/td>\n<td>Th\u00f4ng th\u01b0\u1eddng ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>M\u1eb9o sourcing t\u1eeb NBAEM<\/h3>\n<p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ngu\u1ed3n nam ch\u00e2m Neodymium t\u1ea1i Vi\u1ec7t Nam, NBAEM cung c\u1ea5p m\u1ed9t d\u1ea3i s\u1ea3n ph\u1ea9m <strong>c\u00e1c lo\u1ea1i nam ch\u00e2m NdFeB luy\u1ec7n kim ch\u00e2n kh\u00f4ng<\/strong>, bao g\u1ed3m c\u00e1c lo\u1ea1i c\u00f3 \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb cao v\u00e0 kh\u00f4ng ch\u1ee9a Dy. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd:<\/p>\n<ul>\n<li>Cho c\u00e1c d\u1ef1 \u00e1n c\u1ea7n <strong>\u0111\u1ed9 m\u1ea1nh t\u1eeb t\u1ed1i \u0111a<\/strong> nh\u01b0 \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n ho\u1eb7c n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, h\u00e3y ch\u1ecdn <strong>nam ch\u00e2m luy\u1ec7n kim ch\u00e2n kh\u00f4ng<\/strong>.<\/li>\n<li>N\u1ebfu thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u <strong>h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n<\/strong>, nam ch\u00e2m li\u00ean k\u1ebft c\u00f3 th\u1ec3 l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng minh.<\/li>\n<li>Ki\u1ec3m tra <strong>ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/strong> v\u00e0 h\u1ecfi v\u1ec1 <strong>qu\u00e1 tr\u00ecnh nung ch\u00e2n kh\u00f4ng<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/li>\n<li>NBAEM c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh \u0111\u01a1n h\u00e0ng c\u1ee7a b\u1ea1n \u2014 c\u00e2n b\u1eb1ng gi\u1eefa c\u1ea5p \u0111\u1ed9, h\u00ecnh d\u1ea1ng v\u00e0 chi ph\u00ed cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<p>Ch\u1ecdn \u0111\u00fang s\u1ebd \u0111\u1ea3m b\u1ea3o d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n di\u1ec5n ra su\u00f4n s\u1ebb, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c th\u1ecb tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n nhanh nh\u01b0 xe \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2>Th\u00e1ch th\u1ee9c, \u0110\u1ed5i m\u1edbi v\u00e0 T\u01b0\u01a1ng lai c\u1ee7a Nam ch\u00e2m Nung<\/h2>\n<p>Nam ch\u00e2m nung, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i NdFeB, \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c ch\u00ednh. M\u1ed9t v\u1ea5n \u0111\u1ec1 l\u1edbn l\u00e0 ch\u00fang <strong>kh\u00e1ng \u0103n m\u00f2n<\/strong>\u2014 nh\u1eefng nam ch\u00e2m n\u00e0y c\u00f3 th\u1ec3 b\u1ecb g\u1ec9 n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ph\u1ee7 ho\u1eb7c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch, \u0111i\u1ec1u n\u00e0y gi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. Th\u00e1ch th\u1ee9c kh\u00e1c l\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm nh\u01b0 dysprosium, v\u1ed1n \u0111\u1eaft \u0111\u1ecf v\u00e0 \u0111\u00f4i khi kh\u00f3 t\u00ecm ngu\u1ed3n cung c\u1ea5p. C\u00e1c h\u1ee3p kim NdFeB c\u00f3 \u0111\u1ed9 c\u1ee9ng cao c\u1ed1 g\u1eafng gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c n\u00e0y, nh\u01b0ng vi\u1ec7c t\u00ecm ra s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa hi\u1ec7u su\u1ea5t v\u00e0 chi ph\u00ed v\u1eabn c\u00f2n kh\u00f3 kh\u0103n.<\/p>\n<p>Trong l\u0129nh v\u1ef1c \u0111\u1ed5i m\u1edbi, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111ang t\u1eadp trung v\u00e0o <strong>nam ch\u00e2m nung kh\u00f4ng ch\u1ee9a dysprosium<\/strong> v\u00e0 c\u1ea3i thi\u1ec7n <strong>qu\u00e1 tr\u00ecnh nung ch\u00e2n kh\u00f4ng<\/strong> \u0111\u1ec3 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh. C\u00e1c ti\u1ebfn b\u1ed9 trong k\u1ef9 thu\u1eadt luy\u1ec7n kim b\u1ed9t \u0111ang gi\u00fap t\u1ea1o ra c\u00e1c h\u1ed7n h\u1ee3p b\u1ed9t NdFeB \u0111\u1ed3ng nh\u1ea5t h\u01a1n, t\u1eeb \u0111\u00f3 t\u0103ng s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng c\u1ee7a nam ch\u00e2m (BHmax) m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng gi\u00e1 th\u00e0nh.<\/p>\n<p>Nh\u00ecn v\u1ec1 t\u01b0\u01a1ng lai, th\u1ecb tr\u01b0\u1eddng nam ch\u00e2m nung c\u00f3 tri\u1ec3n v\u1ecdng, \u0111\u1eb7c bi\u1ec7t v\u1edbi nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng t\u1eeb <strong>ng\u00e0nh n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 xe \u0111i\u1ec7n (EV)<\/strong> C\u00e1c l\u0129nh v\u1ef1c n\u00e0y \u0111ang th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c nam ch\u00e2m kh\u00f4ng ch\u1ec9 c\u00f3 hi\u1ec7u su\u1ea5t cao h\u01a1n m\u00e0 c\u00f2n \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng v\u00e0 gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm quan tr\u1ecdng.<\/p>\n<p>N\u1ebfu b\u1ea1n t\u00f2 m\u00f2 v\u1ec1 c\u00e1ch so s\u00e1nh nam ch\u00e2m NdFeB nung v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/bonded-magnets-vs-sintered-magnets\/\" target=\"_blank\" rel=\"noopener\">nam ch\u00e2m li\u00ean k\u1ebft so v\u1edbi nam ch\u00e2m nung NdFeB<\/a><\/strong><\/span> \u0111\u1ec3 gi\u00fap b\u1ea1n ch\u1ecdn nam ch\u00e2m ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 nam ch\u00e2m sintered bao g\u1ed3m quy tr\u00ecnh s\u1ea3n xu\u1ea5t, \u0111\u1eb7c t\u00ednh, \u1ee9ng d\u1ee5ng v\u00e0 l\u1ee3i \u00edch c\u1ee7a nam ch\u00e2m NdFeB.<\/p>","protected":false},"author":1,"featured_media":3293,"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-3294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Sintered_vs_Bonded_Magnets_Comparison_6pynL4zTC.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3294","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=3294"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3294\/revisions"}],"predecessor-version":[{"id":3297,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3294\/revisions\/3297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3293"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3294"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}