{"id":16075,"date":"2025-10-09T09:38:38","date_gmt":"2025-10-09T09:38:38","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16075"},"modified":"2025-10-10T01:47:17","modified_gmt":"2025-10-10T01:47:17","slug":"ndfeb-magnets-sintered-bonded-or-hot-pressed","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/ndfeb-magnets-sintered-bonded-or-hot-pressed\/","title":{"rendered":"Nam ch\u00e2m NdFeB: Thi\u00eau k\u1ebft, Li\u00ean k\u1ebft ho\u1eb7c \u00c9p n\u00f3ng"},"content":{"rendered":"<p>Nam ch\u00e2m v\u0129nh c\u1eedu Neodymium Iron Boron (NdFeB) l\u00e0 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm th\u1ebf h\u1ec7 th\u1ee9 ba, \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t k\u1ec3 t\u1eeb khi ra m\u1eaft v\u00e0o nh\u1eefng n\u0103m 1980. V\u1edbi t\u00edch n\u0103ng l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng \u0111\u1eb7c bi\u1ec7t, \u0111\u1ed9 t\u1eeb d\u01b0 cao v\u00e0 l\u1ef1c kh\u00e1ng t\u1eeb l\u1edbn, nam ch\u00e2m NdFeB l\u00e0 s\u1ea3n ph\u1ea9m kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. \u0110\u01b0\u1ee3c c\u1ea5u t\u1ea1o ch\u1ee7 y\u1ebfu t\u1eeb neodymium (Nd), s\u1eaft (Fe) v\u00e0 boron (B), t\u1ea1o th\u00e0nh h\u1ee3p ch\u1ea5t li\u00ean kim lo\u1ea1i t\u1ee9 ph\u01b0\u01a1ng Nd\u2082Fe\u2081\u2084B, nh\u1eefng nam ch\u00e2m n\u00e0y mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed.<\/p>\n\n\n\n<p>Ch\u00fang \u0111\u00e3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh thu nh\u1ecf, thi\u1ebft k\u1ebf nh\u1eb9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n gi\u00f3, xe \u0111i\u1ec7n, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf. T\u00f9y thu\u1ed9c v\u00e0o quy tr\u00ecnh s\u1ea3n xu\u1ea5t, nam ch\u00e2m NdFeB \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh lo\u1ea1i thi\u00eau k\u1ebft, li\u00ean k\u1ebft v\u00e0 \u00e9p n\u00f3ng, m\u1ed7i lo\u1ea1i c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh, \u0111\u1eb7c \u0111i\u1ec3m s\u1ea3n xu\u1ea5t v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-1024x1024.jpg\" alt=\"\" class=\"wp-image-16077\" style=\"width:724px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-1024x1024.jpg 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-300x300.jpg 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-100x100.jpg 100w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-768x768.jpg 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-12x12.jpg 12w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2-600x600.jpg 600w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/neodymium-iron-boron-magnet2.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-1ee097fce7275b0f6a9dec76a4b615eb\">NdFeB thi\u00eau k\u1ebft: Hi\u1ec7u su\u1ea5t cao v\u1edbi quy tr\u00ecnh x\u1eed l\u00fd ph\u1ee9c t\u1ea1p<\/h2>\n\n\n\n<p>Nam ch\u00e2m NdFeB thi\u00eau k\u1ebft l\u00e0 lo\u1ea1i nam ch\u00e2m NdFeB m\u1ea1nh nh\u1ea5t, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t r\u1ed9ng r\u00e3i v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t, v\u1edbi t\u00edch n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u1ef1c \u0111\u1ea1i (BH)max v\u01b0\u1ee3t qu\u00e1 50 MGOe, v\u01b0\u1ee3t xa c\u00e1c lo\u1ea1i nam ch\u00e2m v\u0129nh c\u1eedu kh\u00e1c. Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u00fang l\u00e0 m\u1ed9t quy tr\u00ecnh ph\u1ee9c t\u1ea1p v\u00e0 ch\u00ednh x\u00e1c cao, t\u00edch h\u1ee3p c\u00e1c k\u1ef9 thu\u1eadt k\u1ef9 thu\u1eadt \u0111a ng\u00e0nh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n<p>Nam ch\u00e2m NdFeB thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh luy\u1ec7n kim b\u1ed9t c\u1ed5 \u0111i\u1ec3n, v\u1edbi c\u00e1c b\u01b0\u1edbc ch\u00ednh sau:<\/p>\n\n\n\n<p><strong>1. C\u00e2n b\u1eb1ng v\u1eadt li\u1ec7u v\u00e0 n\u1ea5u ch\u1ea3y: <\/strong>Th\u00e0nh ph\u1ea7n Nd, Fe, B v\u00e0 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf ph\u1ee5 gia (v\u00ed d\u1ee5: dysprosi, terbi, coban ho\u1eb7c nh\u00f4m) \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c d\u1ef1a tr\u00ean hi\u1ec7u su\u1ea5t nam ch\u00e2m m\u1ee5c ti\u00eau. C\u00e1c ph\u1ee5 gia n\u00e0y \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao trong l\u00f2 c\u1ea3m \u1ee9ng ch\u00e2n kh\u00f4ng ho\u1eb7c kh\u00ed tr\u01a1 \u0111\u1ec3 t\u1ea1o th\u00e0nh h\u1ee3p kim n\u00f3ng ch\u1ea3y \u0111\u1ed3ng nh\u1ea5t, sau \u0111\u00f3 \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i nhanh th\u00e0nh th\u1ecfi h\u1ee3p kim b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00fac d\u1ea3i.<\/p>\n\n\n\n<p><strong>2. Ph\u00e2n h\u1ee7y v\u00e0 nghi\u1ec1n hydro:<\/strong> The alloy ingots are broken into smaller particles using Hydrogen Decrepitation (HD), followed by jet milling to produce fine, uniform powders (typically 3-5<br>\u03bcm). Ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t, h\u00ecnh th\u00e1i v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn hi\u1ec7u su\u1ea5t cu\u1ed1i c\u00f9ng c\u1ee7a nam ch\u00e2m.<\/p>\n\n\n\n<p><strong>3. \u0110\u1ecbnh h\u01b0\u1edbng, \u00e9p v\u00e0 thi\u00eau k\u1ebft: <\/strong>B\u1ed9t \u0111\u01b0\u1ee3c \u00e9p th\u00e0nh h\u00ecnh d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 c\u0103n ch\u1ec9nh tr\u1ee5c t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng c\u1ee7a c\u00e1c h\u1ea1t, sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u00e9p \u0111\u1eb3ng t\u0129nh l\u1ea1nh \u0111\u1ec3 t\u0103ng m\u1eadt \u0111\u1ed9 kh\u1ed1i r\u1eafn xanh. Kh\u1ed1i r\u1eafn sau \u0111\u00f3 \u0111\u01b0\u1ee3c thi\u00eau k\u1ebft \u1edf nhi\u1ec7t \u0111\u1ed9 1000-1100\u00b0C.<br>\u00b0C trong ch\u00e2n kh\u00f4ng \u0111\u1ec3 l\u00e0m \u0111\u1eb7c c\u00e1c h\u1ea1t, t\u1ea1o th\u00e0nh nam ch\u00e2m thi\u00eau k\u1ebft cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"411\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-1024x411.webp\" alt=\"\" class=\"wp-image-16081\" style=\"width:716px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-1024x411.webp 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-300x120.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-768x308.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-18x7.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB-600x241.webp 600w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Sintered-NdFeB.webp 1072w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng nghi\u00eam ng\u1eb7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ee9c oxy, v\u00ec neodymium d\u1ec5 b\u1ecb oxy h\u00f3a, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"678\" height=\"452\" data-id=\"16078\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron1.webp\" alt=\"\" class=\"wp-image-16078\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron1.webp 678w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron1-300x200.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron1-18x12.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron1-600x400.webp 600w\" sizes=\"(max-width: 678px) 100vw, 678px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"168\" data-id=\"16079\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron3.jpeg\" alt=\"\" class=\"wp-image-16079\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron3.jpeg 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Neodymium-Iron-Boron3-18x10.jpeg 18w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>V\u1edbi c\u00e1c t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i, nam ch\u00e2m NdFeB thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao nh\u01b0:<\/p>\n\n\n\n<p>\u0110\u1ed9ng c\u01a1 truy\u1ec1n \u0111\u1ed9ng cho xe \u0111i\u1ec7n<\/p>\n\n\n\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n tua bin gi\u00f3<\/p>\n\n\n\n<p>\u0110\u1ed9ng c\u01a1 servo c\u00f4ng nghi\u1ec7p<\/p>\n\n\n\n<p>Thi\u1ebft b\u1ecb \u00e2m thanh hi\u1ec7u su\u1ea5t cao<\/p>\n\n\n\n<p>Thi\u1ebft b\u1ecb y t\u1ebf MRI<\/p>\n\n\n\n<p>Tuy nhi\u00ean, nam ch\u00e2m NdFeB thi\u00eau k\u1ebft c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf:<\/p>\n\n\n\n<p>Gi\u00f2n v\u00e0 c\u1ee9ng: Kh\u1ea3 n\u0103ng gia c\u00f4ng k\u00e9m d\u1eabn \u0111\u1ebfn n\u1ee9t ho\u1eb7c h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh gia c\u00f4ng.<\/p>\n\n\n\n<p>\u0110\u1ed9 nh\u1ea1y nhi\u1ec7t \u0111\u1ed9: Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 80-250\u00b0C.<\/p>\n\n\n\n<p>\u0110\u1ed9 d\u1ec5 b\u1ecb \u0103n m\u00f2n: D\u1ec5 b\u1ecb oxy h\u00f3a, c\u1ea7n ph\u1ea3i ph\u1ee7 l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n<p>Th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt: Ki\u1ec3m so\u00e1t s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ea1t v\u00e0 c\u1ea5u tr\u00fac vi m\u00f4 trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft l\u00e0 r\u1ea5t quan tr\u1ecdng v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-fc074a915632d720c0a01fe55c6b68de\">NdFeB li\u00ean k\u1ebft: \u01afu \u0111i\u1ec3m v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p<\/h2>\n\n\n\n<p>\u0110\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c trong gia c\u00f4ng NdFeB thi\u00eau k\u1ebft, nam ch\u00e2m NdFeB li\u00ean k\u1ebft xu\u1ea5t hi\u1ec7n v\u00e0o nh\u1eefng n\u0103m 1970. Nh\u1eefng nam ch\u00e2m n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch tr\u1ed9n b\u1ed9t t\u1eeb v\u1edbi nh\u1ef1a ho\u1eb7c cao su v\u00e0 \u0111\u1ecbnh h\u00ecnh ch\u00fang trong t\u1eeb tr\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m<\/h3>\n\n\n\n<p>Nam ch\u00e2m NdFeB li\u00ean k\u1ebft \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p b\u1ed9t t\u1eeb NdFeB v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh nh\u01b0 cao su ho\u1eb7c nh\u1ef1a, \u0111\u01b0\u1ee3c \u0111\u00fac tr\u1ef1c ti\u1ebfp th\u00e0nh nhi\u1ec1u h\u00ecnh d\u1ea1ng kh\u00e1c nhau t\u00f9y theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. C\u00e1c b\u01b0\u1edbc s\u1ea3n xu\u1ea5t ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Chu\u1ea9n b\u1ecb b\u1ed9t t\u1eeb:<\/strong> B\u1ed9t \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0 HDDR (Hydro h\u00f3a-Ph\u00e2n t\u00e1ch-Gi\u1ea3i h\u1ea5p-T\u00e1i h\u1ee3p), nghi\u1ec1n c\u01a1 h\u1ecdc ho\u1eb7c l\u00e0m ngu\u1ed9i nhanh. HDDR l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u1ee7 y\u1ebfu, t\u1ea1o ra b\u1ed9t c\u00f3 l\u1ef1c kh\u00e1ng t\u1eeb cao v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh kho\u1ea3ng 0,3 \u03bcm.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"449\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Magnetic-Powder-Preparation.webp\" alt=\"\" class=\"wp-image-16083\" style=\"width:706px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Magnetic-Powder-Preparation.webp 640w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Magnetic-Powder-Preparation-300x210.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Magnetic-Powder-Preparation-18x12.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Magnetic-Powder-Preparation-600x421.webp 600w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<p><strong>Quy tr\u00ecnh \u0111\u00fac:<\/strong> Bao g\u1ed3m c\u00e1n, \u00e9p phun, \u00e9p \u0111\u00f9n v\u00e0 \u00e9p n\u00e9n, trong \u0111\u00f3 c\u00e1n v\u00e0 \u00e9p phun l\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n\n\n\n<p>Nam ch\u00e2m NdFeB li\u00ean k\u1ebft c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc cao, bi\u1ebfn d\u1ea1ng t\u1ed1i thi\u1ec3u v\u00e0 t\u00ednh linh ho\u1ea1t \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p nh\u01b0 d\u1ea3i, t\u1ea5m, \u1ed1ng ho\u1eb7c v\u00f2ng, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t t\u1ef1 \u0111\u1ed9ng. Vi\u1ec7c b\u1ed5 sung ch\u1ea5t k\u1ebft d\u00ednh gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc v\u00e0 t\u00ednh \u0111\u1eb3ng h\u01b0\u1edbng, cho ph\u00e9p c\u00e1c t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh \u0111\u1ed3ng nh\u1ea5t theo m\u1ecdi h\u01b0\u1edbng v\u00e0 cho ph\u00e9p thi\u1ebft k\u1ebf nam ch\u00e2m \u0111a c\u1ef1c ho\u1eb7c v\u00f4 c\u1ef1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hi\u1ec7u su\u1ea5t, \u1ee8ng d\u1ee5ng v\u00e0 H\u1ea1n ch\u1ebf<\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 nam ch\u00e2m NdFeB li\u00ean k\u1ebft c\u00f3 hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh th\u1ea5p h\u01a1n nam ch\u00e2m thi\u00eau k\u1ebft, nh\u01b0ng ch\u00fang c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t v\u00e0 \u1ed5n \u0111\u1ecbnh v\u01b0\u1ee3t tr\u1ed9i. C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<p>Nam ch\u00e2m \u1ed5 \u0111\u0129a c\u1ee9ng (HDD) (m\u1ed9t \u1ee9ng d\u1ee5ng c\u1ed1t l\u00f5i)<\/p>\n\n\n\n<p>Thi\u1ebft b\u1ecb t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u0103n ph\u00f2ng (\u0111\u1ed9ng c\u01a1 m\u00e1y in, \u0111\u1ed9ng c\u01a1 m\u00e1y qu\u00e9t, \u0111\u1ed9ng c\u01a1 \u0111\u1ed3ng b\u1ed9 m\u00e1y photocopy)<\/p>\n\n\n\n<p>\u0110\u1ed9ng c\u01a1 vi m\u00f4 \u00f4 t\u00f4 (c\u1ea3m bi\u1ebfn l\u00e1i EPS, \u0111\u1ed9ng c\u01a1 g\u1ea1t n\u01b0\u1edbc, \u0111\u1ed9ng c\u01a1 c\u1eeda s\u1ed5)<\/p>\n\n\n\n<p>\u0110\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p v\u00e0 gia d\u1ee5ng (\u0111\u1ed9ng c\u01a1 servo, \u0111\u1ed9ng c\u01a1 d\u1ee5ng c\u1ee5 \u0111i\u1ec7n, \u0111\u1ed9ng c\u01a1 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Thu\u1eadn l\u1ee3i:<\/h4>\n\n\n\n<p>\u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u00fac cao v\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh ph\u1ee9c t\u1ea1p<\/p>\n\n\n\n<p>\u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed1t<\/p>\n\n\n\n<p>Chi ph\u00ed th\u1ea5p h\u01a1n do gi\u1ea3m thi\u1ec3u l\u00e3ng ph\u00ed v\u1eadt li\u1ec7u v\u00e0 nhu c\u1ea7u gia c\u00f4ng<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">H\u1ea1n ch\u1ebf:<\/h4>\n\n\n\n<p>Hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh th\u1ea5p h\u01a1n (50-70% NdFeB thi\u00eau k\u1ebft) do ch\u1ea5t k\u1ebft d\u00ednh kh\u00f4ng t\u1eeb t\u00ednh<\/p>\n\n\n\n<p>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t h\u1ea1n ch\u1ebf v\u00ec ch\u1ea5t k\u1ebft d\u00ednh c\u00f3 th\u1ec3 b\u1ecb ph\u00e2n h\u1ee7y \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/p>\n\n\n\n<p>B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t v\u1eabn c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t m\u1eb7c d\u00f9 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-7bcf11b5fd67791ab3e50a2184dc949a\">NdFeB \u00e9p n\u00f3ng: Con \u0111\u01b0\u1eddng m\u1edbi c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t v\u00e0 chi ph\u00ed<\/h2>\n\n\n\n<p>Nam ch\u00e2m NdFeB \u00e9p n\u00f3ng l\u00e0 lo\u1ea1i nam ch\u00e2m NdFeB ph\u1ee9c t\u1ea1p nh\u1ea5t v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 \u00edt \u0111\u01b0\u1ee3c c\u00f4ng nghi\u1ec7p h\u00f3a nh\u1ea5t trong ba lo\u1ea1i nam ch\u00e2m NdFeB, tuy nhi\u00ean nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u00fang khi\u1ebfn ch\u00fang kh\u00f4ng th\u1ec3 thay th\u1ebf trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m<\/h3>\n\n\n\n<p>Nam ch\u00e2m NdFeB \u00e9p n\u00f3ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh bi\u1ebfn d\u1ea1ng nhi\u1ec7t, bao g\u1ed3m:<\/p>\n\n\n\n<p>N\u1ea1p b\u1ed9t t\u1eeb t\u00ednh NdFeB \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i nhanh v\u00e0o khu\u00f4n.<\/p>\n\n\n\n<p>\u00c1p d\u1ee5ng \u00e1p su\u1ea5t m\u1ed9t chi\u1ec1u ho\u1eb7c hai chi\u1ec1u \u1edf nhi\u1ec7t \u0111\u1ed9 cao (th\u01b0\u1eddng l\u00e0 600-800\u00b0C).<\/p>\n\n\n\n<p>\u0110\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 \u0111\u1eb7c v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng h\u1ea1t.<\/p>\n\n\n\n<p>Nam ch\u00e2m NdFeB \u00e9p n\u00f3ng c\u00f3 m\u1eadt \u0111\u1ed9 cao, \u0111\u1ecbnh h\u01b0\u1edbng tuy\u1ec7t v\u1eddi, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 l\u1ef1c kh\u00e1ng t\u1eeb cao. Hi\u1ec7u su\u1ea5t t\u1eeb c\u1ee7a ch\u00fang, v\u1edbi t\u00edch n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a 30-45 MGOe, n\u1eb1m gi\u1eefa NdFeB thi\u00eau k\u1ebft v\u00e0 NdFeB li\u00ean k\u1ebft. Qu\u00e1 tr\u00ecnh \u00e9p n\u00f3ng t\u1ea1o ra c\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn, \u0111\u1ed3ng \u0111\u1ec1u, v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh d\u01b0\u1edbi 50 nm\u2014nh\u1ecf h\u01a1n nhi\u1ec1u so v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t 5-10 \u03bcm trong NdFeB thi\u00eau k\u1ebft. C\u1ea5u tr\u00fac h\u1ea1t m\u1ecbn n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng l\u1ef1c kh\u00e1ng t\u1eeb trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 t\u1eeb d\u01b0 v\u00e0 t\u00edch n\u0103ng l\u01b0\u1ee3ng t\u1eeb t\u1ed1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng v\u00e0 Th\u00e1ch th\u1ee9c Ph\u00e1t tri\u1ec3n<\/h3>\n\n\n\n<p>Nam ch\u00e2m NdFeB \u00e9p n\u00f3ng ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng l\u00e1i tr\u1ee3 l\u1ef1c \u0111i\u1ec7n (EPS) c\u1ee7a \u00f4 t\u00f4, \u0111\u1ed9ng c\u01a1 vi m\u00f4 hi\u1ec7u su\u1ea5t cao v\u00e0 c\u1ea3m bi\u1ebfn chuy\u00ean d\u1ee5ng. Tuy nhi\u00ean, quy tr\u00ecnh ph\u1ee9c t\u1ea1p v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t cao c\u1ee7a ch\u00fang h\u1ea1n ch\u1ebf s\u1ea3n l\u01b0\u1ee3ng hi\u1ec7n t\u1ea1i, c\u1ea3n tr\u1edf qu\u00e1 tr\u00ecnh c\u00f4ng nghi\u1ec7p h\u00f3a quy m\u00f4 l\u1edbn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng th\u00e1ch th\u1ee9c ch\u00ednh bao g\u1ed3m:<\/h3>\n\n\n\n<p>\u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a quy tr\u00ecnh: Vi\u1ec7c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t v\u00e0 t\u1ed1c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh \u00e9p n\u00f3ng l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n<p>Chi ph\u00ed thi\u1ebft b\u1ecb cao: Thi\u1ebft b\u1ecb \u00e9p n\u00f3ng \u0111\u1eaft ti\u1ec1n v\u00e0 \u0111\u00f2i h\u1ecfi \u0111\u1ea7u t\u01b0 \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p>Chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4: Chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 \u00e9p n\u00f3ng NdFeB c\u00f3 th\u1ec3 cao h\u01a1n chi ph\u00ed s\u1ea3n xu\u1ea5t th\u00e0nh ph\u1ea9m.<\/p>\n\n\n\n<p>B\u1ea5t ch\u1ea5p nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, NdFeB \u00e9p n\u00f3ng v\u1eabn c\u00f3 ti\u1ec1m n\u0103ng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh cao v\u00e0 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p \u0111\u1ea7y h\u1ee9a h\u1eb9n trong c\u00e1c th\u1ecb tr\u01b0\u1eddng ng\u00e1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-e3eba661d7e2e7ed9949e22d3fad9f8f\">Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai c\u1ee7a nam ch\u00e2m NdFeB<\/h2>\n\n\n\n<p class=\"has-ast-global-color-3-color has-text-color has-link-color wp-elements-096d089d7c79b802fa01ad83fd6bad3f\">Khi c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 xe \u0111i\u1ec7n, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 s\u1ea3n xu\u1ea5t th\u00f4ng minh ph\u00e1t tri\u1ec3n, nhu c\u1ea7u v\u1ec1 nam ch\u00e2m NdFeB ng\u00e0y c\u00e0ng t\u0103ng. C\u00e1c xu h\u01b0\u1edbng trong t\u01b0\u01a1ng lai bao g\u1ed3m:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t cao v\u00e0 chi ph\u00ed th\u1ea5p<\/h3>\n\n\n\n<p>Hi\u1ec7u su\u1ea5t cao: \u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng cao c\u1ea5p, nam ch\u00e2m NdFeB s\u1ebd ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng c\u00f3 l\u1ef1c kh\u00e1ng t\u1eeb v\u00e0 nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng cao h\u01a1n th\u00f4ng qua c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 khu\u1ebfch t\u00e1n ranh gi\u1edbi h\u1ea1t, tinh ch\u1ec9nh h\u1ea1t v\u00e0 t\u1ed1i \u01b0u h\u00f3a h\u1ee3p kim.<\/p>\n\n\n\n<p>Gi\u1ea3m chi ph\u00ed: Tr\u1ecdng t\u00e2m nghi\u00ean c\u1ee9u l\u00e0 gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm n\u1eb7ng b\u1eb1ng c\u00e1ch ph\u00e1t tri\u1ec3n c\u00e1c c\u00f4ng th\u1ee9c c\u00f3 h\u00e0m l\u01b0\u1ee3ng dysprosi th\u1ea5p ho\u1eb7c kh\u00f4ng ch\u1ee9a dysprosi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed5i m\u1edbi quy tr\u00ecnh v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac<\/h3>\n\n\n\n<p>C\u00e1c k\u1ef9 thu\u1eadt m\u1edbi n\u1ed5i nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p h\u1ee3p kim k\u00e9p, khu\u1ebfch t\u00e1n bi\u00ean h\u1ea1t v\u00e0 nam ch\u00e2m nanocomposite h\u1ee9a h\u1eb9n s\u1ebd n\u00e2ng cao hi\u1ec7u su\u1ea5t \u0111\u1ed3ng th\u1eddi gi\u1ea3m chi ph\u00ed. Ki\u1ec3m so\u00e1t vi c\u1ea5u tr\u00fac, bao g\u1ed3m t\u1ed1i \u01b0u h\u00f3a ph\u00e2n b\u1ed1 pha bi\u00ean h\u1ea1t v\u00e0 t\u00ednh li\u00ean t\u1ee5c c\u1ee7a pha gi\u00e0u \u0111\u1ea5t hi\u1ebfm, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 kh\u00e1ng t\u1eeb m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 t\u1eeb d\u01b0.<\/p>\n\n\n\n<p>V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a \u0111i\u1ec7n t\u1eed, xe \u0111i\u1ec7n v\u00e0 c\u00f4ng ngh\u1ec7 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, c\u00e1c \u1ee9ng d\u1ee5ng nam ch\u00e2m NdFeB s\u1ebd ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng. Trong n\u0103m n\u0103m t\u1edbi, nhu c\u1ea7u d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng h\u01a1n 251 t\u1ea5n\/n\u0103m, trong \u0111\u00f3 c\u00e1c \u1ee9ng d\u1ee5ng xe \u0111i\u1ec7n \u0111\u1ea1t h\u00e0ng ch\u1ee5c ngh\u00ecn t\u1ea5n v\u00e0 robot c\u00f4ng nghi\u1ec7p v\u01b0\u1ee3t qu\u00e1 5.000 t\u1ea5n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ea3n xu\u1ea5t xanh v\u00e0 b\u1ec1n v\u1eefng<\/h3>\n\n\n\n<p>Gi\u00e1 tr\u1ecb chi\u1ebfn l\u01b0\u1ee3c v\u00e0 t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng c\u1ee7a t\u00e0i nguy\u00ean \u0111\u1ea5t hi\u1ebfm ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng. Ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t xanh, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 th\u00fac \u0111\u1ea9y t\u00e1i ch\u1ebf s\u1ebd l\u00e0 ch\u00eca kh\u00f3a cho s\u1ef1 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p NdFeB. NdFeB li\u00ean k\u1ebft, v\u1edbi hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u cao v\u00e0 \u00edt ch\u1ea5t th\u1ea3i ch\u1ebf bi\u1ebfn, c\u00f3 m\u1ed9t l\u1ee3i th\u1ebf t\u1ef1 nhi\u00ean v\u1ec1 m\u1eb7t n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-a1c8b410c288bab3e0af33972ef7c042\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p>Nam ch\u00e2m NdFeB thi\u00eau k\u1ebft, li\u00ean k\u1ebft v\u00e0 \u00e9p n\u00f3ng \u0111\u1ec1u mang \u0111\u1ebfn nh\u1eefng \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng \u0111\u1ed9c \u0111\u00e1o, t\u1ea1o th\u00e0nh m\u1ed9t h\u1ec7 sinh th\u00e1i b\u1ed5 sung cho nhau. NdFeB thi\u00eau k\u1ebft chi\u1ebfm l\u0129nh th\u1ecb tr\u01b0\u1eddng c\u00f4ng su\u1ea5t cao, nhu c\u1ea7u cao nh\u1edd c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i. NdFeB li\u00ean k\u1ebft v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c, h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t ti\u1ebft ki\u1ec7m chi ph\u00ed cho c\u00e1c \u1ee9ng d\u1ee5ng thu nh\u1ecf. NdFeB \u00e9p n\u00f3ng, v\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o, \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thay th\u1ebf trong c\u00e1c l\u0129nh v\u1ef1c chuy\u00ean bi\u1ec7t.<\/p>\n\n\n\n<p>Khi xe \u0111i\u1ec7n, robot v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o ph\u00e1t tri\u1ec3n, nam ch\u00e2m NdFeB s\u1ebd v\u1eabn \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c th\u00fac \u0111\u1ea9y ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 v\u00e0 ph\u00e1t tri\u1ec3n c\u00f4ng nghi\u1ec7p. \u0110\u1ed3ng th\u1eddi, s\u1ea3n xu\u1ea5t xanh, s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean hi\u1ec7u qu\u1ea3 v\u00e0 t\u00ednh b\u1ec1n v\u1eefng s\u1ebd \u0111\u1ecbnh h\u00ecnh t\u01b0\u01a1ng lai c\u1ee7a ng\u00e0nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-vivid-red-color has-text-color has-link-color wp-elements-29660353260f3d2e58e7c001410161b8\">M\u00e1y m\u00f3c b\u1ed9t Epic<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"M\u00e1y ph\u00e2n lo\u1ea1i ly t\u00e2m cho b\u1ed9t th\u00e9p kh\u00f4ng g\u1ec9 - B\u1ed9t EPIC\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/_CJCRKSDA40?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>T\u1ea1i <a href=\"https:\/\/www.epicmicron.com\/vi\/products\/\">M\u00e1y m\u00f3c b\u1ed9t Epic<\/a>, we specialize in powder processing solutions, including advanced air pulverizers designed for producing high-quality NdFeB powder. Our air pulverizers ensure precise particle size control and uniform morphology, enabling the production of NdFeB powder optimized for sintered, bonded, and hot-pressed magnet applications. As a trusted leader in powder processing equipment, we are committed to providing tailored solutions to meet your unique requirements. Contact us today for a customized solution to enhance your NdFeB magnet production.<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f14468-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"14468\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/vi\/wp-json\/wp\/v2\/posts\/16075#wpcf7-f14468-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/vi\/wp-json\/wp\/v2\/posts\/16075#wpcf7-f14468-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"14468\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.5\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f14468-o1\" \/><input type=\"hidden\" 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\/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"\u0110i\u1ec7n tho\u1ea1i ho\u1eb7c Whatsapp c\u1ee7a b\u1ea1n*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"C\u00f4ng ty c\u1ee7a b\u1ea1n\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Tin nh\u1eafn c\u1ee7a b\u1ea1n\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap kc_captcha\" data-name=\"kc_captcha\"><span class=\"wpcf7-form-control wpcf7-radio\"><span class=\"captcha-image\" ><span class=\"cf7ic_instructions\">H\u00e3y ch\u1ee9ng minh b\u1ea1n l\u00e0 ng\u01b0\u1eddi b\u1eb1ng c\u00e1ch ch\u1ecdn<span> tr\u00e1i tim<\/span>\u3002<\/span><label><input aria-label=\"1\" type=\"radio\" name=\"kc_captcha\" value=\"kc_human\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M415 24c-53 0-103 42-127 65-24-23-74-65-127-65C70 24 16 77 16 166c0 72 67 133 69 135l187 181c9 8 23 8 32 0l187-180c2-3 69-64 69-136 0-89-54-142-145-142z\"\/><\/svg><\/label><label><input aria-label=\"2\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" 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value=\"vi\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Nam ch\u00e2m v\u0129nh c\u1eedu Neodymium Iron Boron (NdFeB) l\u00e0 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm th\u1ebf h\u1ec7 th\u1ee9 ba, \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t k\u1ec3 t\u1eeb khi ra m\u1eaft v\u00e0o nh\u1eefng n\u0103m 1980. 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