{"id":2806,"date":"2025-09-16T12:58:05","date_gmt":"2025-09-16T12:58:05","guid":{"rendered":"https:\/\/nbaem.com\/?p=2806"},"modified":"2025-09-19T08:25:19","modified_gmt":"2025-09-19T08:25:19","slug":"ndfeb-magnet-composition","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/ndfeb-magnet-composition\/","title":{"rendered":"Th\u00e0nh Ph\u1ea7n Nam Ch\u00e2m NdFeB"},"content":{"rendered":"<p>N\u1ebfu b\u1ea1n t\u1eebng t\u1ef1 h\u1ecfi \u0111i\u1ec1u g\u00ec t\u1ea1o n\u00ean <strong>Nam ch\u00e2m NdFeB<\/strong>\u00a0ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng c\u1ee7a th\u1ebf gi\u1edbi nam ch\u00e2m, t\u1ea5t c\u1ea3 \u0111\u1ec1u quy v\u1ec1 vi\u1ec7c ch\u00fang <strong>Th\u00e0nh ph\u1ea7n<\/strong>. S\u1ef1 pha tr\u1ed9n ch\u00ednh x\u00e1c c\u1ee7a <strong>neodymium, s\u1eaft, boron<\/strong>, v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh kh\u00e1c kh\u00f4ng ch\u1ec9 x\u00e1c \u0111\u1ecbnh s\u1ee9c m\u1ea1nh \u0111\u00e1ng kinh ng\u1ea1c c\u1ee7a ch\u00fang m\u00e0 c\u00f2n c\u1ea3 \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao. Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng, s\u00e2u s\u1eafc v\u1ec1 <strong>th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB<\/strong>\u2014 nh\u1eefng g\u00ec m\u1ed7i th\u00e0nh ph\u1ea7n l\u00e0m, c\u00e1ch c\u00e1c c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau bi\u1ebfn \u0111\u1ed5i, v\u00e0 t\u1ea1i sao s\u1ef1 pha tr\u1ed9n ch\u00ednh x\u00e1c n\u00e0y l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u1ecdi th\u1ee9 t\u1eeb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ti\u00ean ti\u1ebfn. S\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 khoa h\u1ecdc \u0111\u1eb1ng sau nh\u1eefng nam ch\u00e2m m\u1ea1nh nh\u1ea5t h\u00e0nh tinh ch\u01b0a? H\u00e3y b\u1eaft \u0111\u1ea7u n\u00e0o.<\/p>\n<h2>T\u1ed5ng quan v\u1ec1 nam ch\u00e2m NdFeB<\/h2>\n<p>Nam ch\u00e2m NdFeB, vi\u1ebft t\u1eaft c\u1ee7a Nam ch\u00e2m Neodymium S\u1eaft Boron, l\u00e0 m\u1ed9t lo\u1ea1i nam ch\u00e2m v\u0129nh c\u1eedu hi\u1ebfm c\u00f3 n\u1ed5i b\u1eadt v\u1edbi s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh v\u01b0\u1ee3t tr\u1ed9i. \u0110\u01b0\u1ee3c c\u1ea5u th\u00e0nh ch\u1ee7 y\u1ebfu t\u1eeb neodymium (Nd), s\u1eaft (Fe), v\u00e0 boron (B), nh\u1eefng nam ch\u00e2m n\u00e0y th\u1ec3 hi\u1ec7n s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1eeb cao nh\u1ea5t hi\u1ec7n nay. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang ch\u1ee9a nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng t\u1eeb h\u01a1n trong m\u1ed9t k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m v\u0129nh c\u1eedu kh\u00e1c.<\/p>\n<p>Ph\u00e1t tri\u1ec3n v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1980, nam ch\u00e2m NdFeB \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a c\u00f4ng ngh\u1ec7 nam ch\u00e2m b\u1eb1ng c\u00e1ch cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf ti\u1ebft ki\u1ec7m chi ph\u00ed cho nam ch\u00e2m samarium-cobalt trong khi mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i. S\u1ef1 s\u00e1ng ch\u1ebf c\u1ee7a ch\u00fang \u0111\u00e1nh d\u1ea5u b\u01b0\u1edbc ti\u1ebfn quan tr\u1ecdng trong khoa h\u1ecdc v\u1eadt li\u1ec7u, m\u1edf ra c\u00e1c \u1ee9ng d\u1ee5ng bi\u1ebfn \u0111\u1ed5i trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p.<\/p>\n<p>Nam ch\u00e2m NdFeB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u0111i\u1ec7n t\u1eed, \u00f4 t\u00f4, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf. B\u1ea1n s\u1ebd th\u1ea5y ch\u00fang trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, \u1ed5 c\u1ee9ng m\u00e1y t\u00ednh, m\u00e1y ph\u00e1t turbine gi\u00f3, tai nghe, v\u00e0 m\u00e1y MRI. Kh\u1ea3 n\u0103ng duy tr\u00ec t\u00ednh ch\u1ea5t t\u1eeb m\u1ea1nh ngay c\u1ea3 \u1edf k\u00edch th\u01b0\u1edbc nh\u1ecf khi\u1ebfn ch\u00fang tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh trong th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/NdFeB_Magnet_Composition_Breakdown_Q9vL3Pnf2.webp\" alt=\"Ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB\" \/><\/p>\n<p>Nam ch\u00e2m NdFeB ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb ba y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i: Neodymium (Nd), S\u1eaft (Fe), v\u00e0 Boron (B). M\u1ed7i y\u1ebfu t\u1ed1 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c mang l\u1ea1i c\u00e1c \u0111\u1eb7c t\u00ednh m\u1ea1nh m\u1ebd cho nam ch\u00e2m n\u00e0y. Hi\u1ec3u r\u00f5 th\u00e0nh ph\u1ea7n c\u1ee7a ch\u00fang gi\u00fap gi\u1ea3i th\u00edch t\u1ea1i sao nam ch\u00e2m NdFeB l\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u1eafp n\u01a1i.<\/p>\n<ul>\n<li><strong>Neodymium (Nd)<\/strong>: Kim lo\u1ea1i hi\u1ebfm n\u00e0y th\u01b0\u1eddng chi\u1ebfm kho\u1ea3ng 28-34% th\u00e0nh ph\u1ea7n c\u1ee7a nam ch\u00e2m. Nd r\u1ea5t quan tr\u1ecdng v\u00ec n\u00f3 cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb m\u1ea1nh. S\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a n\u00f3 n\u00e2ng cao s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1eeb (ho\u1eb7c BHmax), \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u1ee7a nam ch\u00e2m. N\u00f3i c\u00e1ch kh\u00e1c, c\u00e0ng nhi\u1ec1u neodymium th\u00ec nam ch\u00e2m c\u00e0ng m\u1ea1nh.<\/li>\n<li><strong>S\u1eaft (Fe)<\/strong>: S\u1eaft th\u01b0\u1eddng chi\u1ebfm ph\u1ea7n l\u1edbn trong nam ch\u00e2m, kho\u1ea3ng 60-70%. N\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 kim lo\u1ea1i c\u1ea5u tr\u00fac ch\u00ednh, gi\u00fap nam ch\u00e2m NdFeB gi\u1eef h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. S\u1eaft ph\u1ed1i h\u1ee3p v\u1edbi neodymium \u0111\u1ec3 t\u1ea1o ra pha t\u1eeb, nh\u01b0ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng m\u1ea1nh \u0111\u1ebfn t\u1eeb t\u00ednh ri\u00eang bi\u1ec7t \u2014 \u0111\u00f3 l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a h\u1ed7n h\u1ee3p.<\/li>\n<li><strong>Boron (B)<\/strong>: M\u1eb7c d\u00f9 ch\u1ec9 chi\u1ebfm kho\u1ea3ng 1-3% th\u00e0nh ph\u1ea7n, boron r\u1ea5t quan tr\u1ecdng. N\u00f3 gi\u00fap h\u00ecnh th\u00e0nh c\u1ea5u tr\u00fac tinh th\u1ec3 (giai \u0111o\u1ea1n Nd2Fe14B) l\u00e0m cho nam ch\u00e2m NdFeB xu\u1ea5t s\u1eafc. Boron c\u1ea3i thi\u1ec7n s\u1ef1 li\u00ean k\u1ebft t\u1eeb v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac vi m\u00f4, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh \u1ed5n \u0111\u1ecbnh.<\/li>\n<\/ul>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1i nh\u00ecn nhanh v\u1ec1 t\u1ef7 l\u1ec7 nguy\u00ean t\u1eed \u0111i\u1ec3n h\u00ecnh c\u1ee7a ch\u00fang:<\/p>\n<table>\n<thead>\n<tr>\n<th>Y\u1ebfu t\u1ed1<\/th>\n<th>Ph\u1ea7n tr\u0103m nguy\u00ean t\u1eed x\u1ea5p x\u1ec9<\/th>\n<th>Vai tr\u00f2<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodymi<\/td>\n<td>28% &#8211; 34%<\/td>\n<td>Nh\u00e0 cung c\u1ea5p s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td>S\u1eaft<\/td>\n<td>60% &#8211; 70%<\/td>\n<td>H\u1ed7 tr\u1ee3 c\u1ea5u tr\u00fac<\/td>\n<\/tr>\n<tr>\n<td>Bo<\/td>\n<td>1% &#8211; 3%<\/td>\n<td>Ch\u1ea5t \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac tinh th\u1ec3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>H\u1ed7n h\u1ee3p \u0111\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 t\u1ea1o ra nam ch\u00e2m NdFeB hi\u1ec7u su\u1ea5t cao m\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam d\u1ef1a v\u00e0o cho m\u1ecdi th\u1ee9 t\u1eeb \u0111i\u1ec7n t\u1eed \u0111\u1ebfn c\u00f4ng ngh\u1ec7 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 h\u1ee3p kim ph\u1ee5 v\u00e0 vai tr\u00f2 c\u1ee7a ch\u00fang<\/h2>\n<p>Ngo\u00e0i c\u00e1c nguy\u00ean t\u1ed1 ch\u00ednh \u2014 neodymium, s\u1eaft v\u00e0 bo \u2014 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 h\u1ee3p kim ph\u1ee5 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o nam ch\u00e2m NdFeB \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u00f3m t\u1eaft nhanh v\u1ec1 vai tr\u00f2 c\u1ee7a ch\u00fang:<\/p>\n<ul>\n<li><strong>Dysprosium (Dy) v\u00e0 Terbium (Tb):<\/strong> C\u00e1c kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm n\u00e0y t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng kh\u1eed t\u1eeb c\u1ee7a nam ch\u00e2m, ngh\u0129a l\u00e0 ch\u00fang c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb. Ch\u00fang c\u0169ng gi\u00fap nam ch\u00e2m duy tr\u00ec hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n, l\u00e0m cho ch\u00fang thi\u1ebft y\u1ebfu cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n \u1ed5n \u0111\u1ecbnh nhi\u1ec7t.<\/li>\n<li><strong>Praseodymium (Pr):<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c pha tr\u1ed9n v\u1edbi neodymium, praseodymium n\u00e2ng cao s\u1ee9c m\u1ea1nh t\u1eeb v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed5ng th\u1ec3. N\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u00e1c bi\u1ebfn th\u1ec3 pha tr\u1ed9n \u0111\u1ea5t hi\u1ebfm c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1eb7c t\u00ednh t\u1eeb \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3.<\/li>\n<li><strong>Cobalt (Co), Copper (Cu), v\u00e0 Aluminum (Al):<\/strong> C\u00e1c nguy\u00ean t\u1ed1 n\u00e0y ch\u1ee7 y\u1ebfu c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. Vi\u1ec7c th\u00eam ch\u00fang gi\u00fap nam ch\u00e2m c\u00f3 tu\u1ed5i th\u1ecd l\u00e2u h\u01a1n trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t m\u00e0 kh\u00f4ng m\u1ea5t \u0111i s\u1ee9c m\u1ea1nh.<\/li>\n<li><strong>Niobium (Nb) v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c:<\/strong> M\u1ed9t s\u1ed1 nguy\u00ean t\u1ed1 nh\u1ecf nh\u01b0 niobium \u0111\u00f3ng vai tr\u00f2 trong vi\u1ec7c tinh ch\u1ec9nh c\u1ea5u tr\u00fac vi c\u1ee7a nam ch\u00e2m. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ranh gi\u1edbi h\u1ea1t t\u1ed1t h\u01a1n, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1eeb v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/li>\n<\/ul>\n<p>Nh\u1eefng y\u1ebfu t\u1ed1 ph\u1ee5 n\u00e0y cho ph\u00e9p nam ch\u00e2m NdFeB \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, c\u00e2n b\u1eb1ng gi\u1eefa s\u1ee9c m\u1ea1nh, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 tu\u1ed5i th\u1ecd d\u1ef1a tr\u00ean y\u00eau c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng. \u0110\u1ec3 c\u00f3 th\u00eam th\u00f4ng tin v\u1ec1 c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb tr\u01b0\u1eddng ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb, h\u00e3y xem h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/magnetic-components-for-wearables\/\" target=\"_blank\" rel=\"noopener\">C\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh cho thi\u1ebft b\u1ecb \u0111eo \u0111\u01b0\u1ee3c<\/a>.<\/strong><\/span><\/p>\n<h2>C\u00e1c lo\u1ea1i nam ch\u00e2m NdFeB v\u00e0 bi\u1ebfn th\u1ec3 th\u00e0nh ph\u1ea7n<\/h2>\n<p>Nam ch\u00e2m NdFeB c\u00f3 c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n ng\u00e0nh nh\u01b0 N35, N42 v\u00e0 N52, ch\u1ee7 y\u1ebfu ch\u1ec9 ra s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax) \u2014 v\u1ec1 c\u01a1 b\u1ea3n, \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m. S\u1ed1 c\u00e0ng cao, nam ch\u00e2m c\u00e0ng m\u1ea1nh. V\u00ed d\u1ee5, N35 l\u00e0 lo\u1ea1i c\u01a1 b\u1ea3n ph\u00f9 h\u1ee3p, trong khi N52 cung c\u1ea5p m\u1ed9t trong nh\u1eefng \u0111\u1ed9 m\u1ea1nh t\u1eeb cao nh\u1ea5t c\u00f3 s\u1eb5n trong nam ch\u00e2m th\u01b0\u01a1ng m\u1ea1i.<\/p>\n<p>C\u1ea5u tr\u00fac c\u1ee7a nam ch\u00e2m thay \u0111\u1ed5i nh\u1eb9 gi\u1eefa c\u00e1c c\u1ea5p \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t. C\u00e1c lo\u1ea1i nam ch\u00e2m c\u1ea5p cao h\u01a1n th\u01b0\u1eddng ch\u1ee9a nhi\u1ec1u neodymium (Nd) v\u00e0 \u0111\u00f4i khi nhi\u1ec1u nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm nh\u01b0 dysprosium (Dy) \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb\u2014kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb m\u1ea5t c\u1ee7a nam ch\u00e2m. S\u1eaft (Fe) v\u1eabn l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a nam ch\u00e2m nh\u01b0ng boron (B) v\u1eabn gi\u1eef nguy\u00ean \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac. Nh\u1eefng \u0111i\u1ec1u ch\u1ec9nh nh\u1ecf trong t\u1ef7 l\u1ec7 c\u00e1c nguy\u00ean t\u1ed1 n\u00e0y thay \u0111\u1ed5i c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng ch\u00ednh nh\u01b0:<\/p>\n<ul>\n<li><strong>BHmax:<\/strong> S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a, ho\u1eb7c c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/li>\n<li><strong>\u0110\u1ed9 c\u1ee9ng t\u1eeb:<\/strong> Kh\u00e1ng l\u1ea1i vi\u1ec7c m\u1ea5t t\u1eeb d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1p l\u1ef1c ho\u1eb7c nhi\u1ec7t \u0111\u1ed9<\/li>\n<li><strong>L\u01b0u gi\u1eef t\u1eeb t\u00ednh:<\/strong> C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb d\u01b0 c\u1ee7a nam ch\u00e2m<\/li>\n<\/ul>\n<p>C\u00e1c lo\u1ea1i c\u1ea5p nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 m\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t d\u01b0\u1edbi nhi\u1ec7t. Nh\u1eefng lo\u1ea1i n\u00e0y th\u01b0\u1eddng ch\u1ee9a nhi\u1ec1u dysprosium ho\u1eb7c terbium (Tb), gi\u00fap nam ch\u00e2m ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh cao h\u01a1n m\u00e0 kh\u00f4ng m\u1ea5t \u0111i s\u1ee9c m\u1ea1nh. C\u00e1c h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 th\u00eam cobalt (Co) ho\u1eb7c c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao nh\u01b0 \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4 ho\u1eb7c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n<p>Trong , c\u1ea5p \u0111\u1ed9 b\u1ea1n ch\u1ecdn ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e2n b\u1eb1ng gi\u1eefa s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng, kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb m\u1ea5t v\u00e0 nhu c\u1ea7u nhi\u1ec7t \u0111\u1ed9\u2014th\u00e0nh ph\u1ea7n c\u1ee7a m\u1ed7i c\u1ea5p \u0111\u1ed9 \u0111\u01b0\u1ee3c tinh ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 \u0111\u00f3.<\/p>\n<h2>\u1ea2nh h\u01b0\u1edfng c\u1ee7a th\u00e0nh ph\u1ea7n \u0111\u1ebfn Hi\u1ec7u su\u1ea5t c\u1ee7a Nam ch\u00e2m<\/h2>\n<p>&nbsp;<\/p>\n<p>Th\u00e0nh ph\u1ea7n c\u1ee7a nam ch\u00e2m NdFeB \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. M\u1ed7i nguy\u00ean t\u1ed1 \u0111\u00f3ng g\u00f3p m\u1ed9t c\u00e1ch \u0111\u1ed9c \u0111\u00e1o v\u00e0o s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng, kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb m\u1ea5t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed5ng th\u1ec3.<\/p>\n<p><strong>Neodymium (Nd)<\/strong> l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh quy\u1ebft \u0111\u1ecbnh s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng. H\u00e0m l\u01b0\u1ee3ng Nd cao h\u01a1n th\u01b0\u1eddng t\u0103ng c\u01b0\u1eddng s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a c\u1ee7a nam ch\u00e2m (BHmax), chuy\u1ec3n \u0111\u1ed5i th\u00e0nh c\u00e1c tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m cho nam ch\u00e2m ch\u1ee9a nhi\u1ec1u Nd l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn, c\u00f4ng su\u1ea5t cao nh\u01b0 tai nghe v\u00e0 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n.<\/p>\n<p><strong>S\u1eaft (Fe)<\/strong> chi\u1ebfm ph\u1ea7n l\u1edbn c\u1ea5u tr\u00fac c\u1ee7a nam ch\u00e2m. N\u00f3 h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng trong khi cung c\u1ea5p \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc cho nam ch\u00e2m. Tuy nhi\u00ean, qu\u00e1 nhi\u1ec1u s\u1eaft c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t t\u1eeb, v\u00ec v\u1eady c\u1ea7n c\u00e2n \u0111\u1ed1i c\u1ea9n th\u1eadn.<\/p>\n<p><strong>Boron (B)<\/strong> gi\u00fap t\u1ea1o ra c\u1ea5u tr\u00fac tinh th\u1ec3 \u1ed5n \u0111\u1ecbnh trong nam ch\u00e2m, c\u1ea3i thi\u1ec7n s\u1ef1 s\u1eafp x\u1ebfp t\u1eeb tr\u01b0\u1eddng t\u1ed5ng th\u1ec3 v\u00e0 hi\u1ec7u su\u1ea5t trong khi h\u1ed7 tr\u1ee3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t.<\/p>\n<p><strong>Dysprosium (Dy) v\u00e0 Terbium (Tb)<\/strong> l\u00e0 c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm quan tr\u1ecdng cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao. Nh\u1eefng nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm n\u1eb7ng n\u00e0y t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb m\u1ea5t, ngh\u0129a l\u00e0 nam ch\u00e2m ch\u1ed1ng l\u1ea1i s\u1ef1 m\u1ea5t t\u1eeb v\u00e0 duy tr\u00ec hi\u1ec7u su\u1ea5t trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao\u2014ho\u00e0n h\u1ea3o cho xe \u0111i\u1ec7n ho\u1eb7c \u0111\u1ed9ng c\u01a1 c\u00f4ng nghi\u1ec7p ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n<p><strong>Praseodymium (Pr)<\/strong> c\u00f3 th\u1ec3 thay th\u1ebf neodymium trong m\u1ed9t s\u1ed1 h\u1ee3p kim \u0111\u1ec3 n\u00e2ng cao s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n khi pha tr\u1ed9n v\u00e0o c\u00e1c h\u1ee3p ch\u1ea5t \u0111\u1ea5t hi\u1ebfm.<\/p>\n<p><strong>Cobalt (Co), Copper (Cu), v\u00e0 Aluminum (Al)<\/strong> kh\u00f4ng tr\u1ef1c ti\u1ebfp t\u0103ng c\u01b0\u1eddng t\u1eeb t\u00ednh nh\u01b0ng c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a nam ch\u00e2m trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t ho\u1eb7c \u1ea9m \u01b0\u1edbt.<\/p>\n<p><strong>Niobium (Nb)<\/strong> v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 nh\u1ecf kh\u00e1c tinh ch\u1ec9nh c\u1ea5u tr\u00fac vi m\u00f4, d\u1eabn \u0111\u1ebfn nam ch\u00e2m \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n v\u1edbi hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/p>\n<h3>V\u00ed d\u1ee5 v\u1ec1 c\u00e1c \u1ee8ng d\u1ee5ng Theo Th\u00e0nh Ph\u1ea7n C\u1ee5 Th\u1ec3<\/h3>\n<ul>\n<li><strong>Nhi\u1ec1u Nd, \u00edt Dy<\/strong> nam ch\u00e2m ph\u00f9 h\u1ee3p cho \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng n\u01a1i s\u1ee9c m\u1ea1nh t\u1ed1i \u0111a quan tr\u1ecdng nh\u01b0ng nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c v\u1eabn \u1edf m\u1ee9c trung b\u00ecnh.<\/li>\n<li><strong>Nam ch\u00e2m t\u0103ng c\u01b0\u1eddng Dy<\/strong> xu\u1ea5t s\u1eafc trong tua bin gi\u00f3 ho\u1eb7c \u0111\u1ed9ng c\u01a1 xe \u0111i\u1ec7n c\u1ea7n c\u1ea3 c\u00f4ng su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/li>\n<li><strong>Th\u00eam Co ho\u1eb7c Cu<\/strong> \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong c\u1ea3m bi\u1ebfn ngo\u00e0i tr\u1eddi ho\u1eb7c thi\u1ebft b\u1ecb y t\u1ebf ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<\/li>\n<\/ul>\n<p>L\u1ef1a ch\u1ecdn th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 v\u00e0 tu\u1ed5i th\u1ecd. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y k\u1ebft h\u1ee3p trong s\u1ea3n xu\u1ea5t, xem trang 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>C\u00e1c y\u1ebfu t\u1ed1 s\u1ea3n xu\u1ea5t v\u00e0 \u0110\u1ea3m b\u1ea3o Ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Material_Composition_Impact_on_Manufacturing_YDDz9.webp\" alt=\"\u1ea2nh h\u01b0\u1edfng c\u1ee7a th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u \u0111\u1ebfn s\u1ea3n xu\u1ea5t\" \/><\/p>\n<p>Th\u00e0nh ph\u1ea7n c\u1ee7a nam ch\u00e2m NdFeB \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00fang. Nh\u1eefng thay \u0111\u1ed5i nh\u1ecf trong t\u1ef7 l\u1ec7 c\u1ee7a neodymium, s\u1eaft, boron v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim kh\u00e1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1ch nam ch\u00e2m \u0111\u01b0\u1ee3c \u00e9p, nung k\u1ebft v\u00e0 x\u1eed l\u00fd nhi\u1ec7t. Duy tr\u00ec th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc nh\u1ea5t qu\u00e1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc mong mu\u1ed1n.<\/p>\n<p>Ki\u1ec3m so\u00e1t t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n do s\u1ef1 bi\u1ebfn \u0111\u1ed5i trong \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 \u0111\u1ed9 nh\u1ea1y c\u1ea3m c\u1ee7a c\u00e1c b\u01b0\u1edbc c\u00f4ng ngh\u1ec7 b\u1ed9t kim lo\u1ea1i. Ngay c\u1ea3 nh\u1eefng sai l\u1ec7ch nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng t\u1eeb, \u0111\u1ed9 d\u01b0 v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a nam ch\u00e2m. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ki\u1ec3m so\u00e1t quy tr\u00ecnh ch\u1eb7t ch\u1ebd v\u00e0 pha tr\u1ed9n ch\u00ednh x\u00e1c l\u00e0 c\u1ea7n thi\u1ebft trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n<p>NBAEM tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed7i l\u00f4 h\u00e0ng \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 th\u00e0nh ph\u1ea7n. C\u00e1c ki\u1ec3m tra c\u1ee7a h\u1ecd bao g\u1ed3m ph\u00e2n t\u00edch nguy\u00ean t\u1ed1, x\u00e1c nh\u1eadn \u0111\u1eb7c t\u00ednh t\u1eeb v\u00e0 ki\u1ec3m tra c\u1ea5u tr\u00fac vi m\u00f4. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00eam ng\u1eb7t n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c nam ch\u00e2m NdFeB cu\u1ed1i c\u00f9ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n \u0111\u1ebfn \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, \u0111\u00e1p \u1ee9ng c\u00e1c mong \u0111\u1ee3i v\u1ec1 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 chu\u1ed7i cung \u1ee9ng<\/h2>\n<p>Th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm nh\u01b0 neodymium, dysprosium v\u00e0 terbium. Nh\u1eefng nguy\u00ean li\u1ec7u n\u00e0y th\u01b0\u1eddng \u0111\u1ebfn t\u1eeb c\u00e1c ngu\u1ed3n h\u1ea1n ch\u1ebf to\u00e0n c\u1ea7u, khi\u1ebfn chu\u1ed7i cung \u1ee9ng d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u0103ng th\u1eb3ng \u0111\u1ecba ch\u00ednh tr\u1ecb v\u00e0 h\u1ea1n ch\u1ebf xu\u1ea5t kh\u1ea9u\u2014\u0111\u1eb7c bi\u1ec7t t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u00ednh\u2014\u0111\u00e3 l\u00e0m cho vi\u1ec7c \u0111\u1ea3m b\u1ea3o ngu\u1ed3n cung c\u00e1c kim lo\u1ea1i n\u00e0y tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n trong th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<p>V\u00ec l\u00fd do n\u00e0y, nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t \u0111ang t\u1eadp trung v\u00e0o <strong>th\u1ef1c h\u00e0nh th\u00e0nh ph\u1ea7n b\u1ec1n v\u1eefng<\/strong>. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m t\u00e1i ch\u1ebf nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm t\u1eeb c\u00e1c nam ch\u00e2m c\u0169 v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, c\u0169ng nh\u01b0 kh\u00e1m ph\u00e1 c\u00e1c ngu\u1ed3n thay th\u1ebf. Nh\u1eefng n\u1ed7 l\u1ef1c n\u00e0y gi\u00fap gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c chu\u1ed7i cung \u1ee9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ed7 tr\u1ee3 s\u1ea3n xu\u1ea5t th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u01a1n.<\/p>\n<p>M\u1ed9t xu h\u01b0\u1edbng kh\u00e1c l\u00e0 \u0111\u1ed5i m\u1edbi trong <strong>gi\u1ea3m thi\u1ec3u c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm n\u1eb7ng<\/strong> gi\u1ed1ng nh\u01b0 dysprosium v\u00e0 terbium trong khi gi\u1eef hi\u1ec7u su\u1ea5t nam ch\u00e2m cao. C\u00e1c kim lo\u1ea1i hi\u1ebfm n\u1eb7ng c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 \u0111\u1ed9 c\u01b0\u1ee1ng b\u1ee9c nh\u01b0ng r\u1ea5t khan hi\u1ebfm v\u00e0 \u0111\u1eaft \u0111\u1ecf. C\u00e1c h\u1ee3p kim hi\u1ec7n \u0111\u1ea1i nh\u1eb1m c\u00e2n b\u1eb1ng l\u01b0\u1ee3ng kim lo\u1ea1i hi\u1ebfm n\u1eb7ng th\u1ea5p h\u01a1n v\u1edbi c\u1ea5u tr\u00fac vi m\u00f4 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 h\u00f3a h\u1ecdc t\u1ed1i \u01b0u, mang l\u1ea1i nam ch\u00e2m m\u1ea1nh m\u1ebd, \u0111\u00e1ng tin c\u1eady v\u1edbi chi ph\u00ed m\u00f4i tr\u01b0\u1eddng v\u00e0 kinh t\u1ebf th\u1ea5p h\u01a1n.<\/p>\n<p>B\u1eb1ng c\u00e1ch gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 chu\u1ed7i cung \u1ee9ng n\u00e0y, c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n cung nam ch\u00e2m NdFeB m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c \u0111\u1ea9y gi\u00e1 l\u00ean cao.<\/p>\n<h2>L\u1ef1a ch\u1ecdn th\u00e0nh ph\u1ea7n NdFeB ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n<\/h2>\n<p>Vi\u1ec7c ch\u1ecdn th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng c\u1ee7a b\u1ea1n. C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau c\u00f3 \u01b0u ti\u00ean kh\u00e1c nhau\u2014\u0111\u00f4i khi l\u00e0 s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng th\u00f4, \u0111\u00f4i khi l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t ho\u1eb7c \u0111\u1ed9 b\u1ec1n d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn nhanh gi\u00fap b\u1ea1n quy\u1ebft \u0111\u1ecbnh:<\/p>\n<ul>\n<li><strong>S\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng (BHmax):<\/strong> N\u1ebfu d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n c\u1ea7n l\u1ef1c h\u00fat t\u1eeb tr\u01b0\u1eddng m\u1ea1nh nh\u1ea5t, h\u00e3y ch\u1ecdn c\u00e1c nam ch\u00e2m c\u1ea5p cao nh\u01b0 N52. Th\u01b0\u1eddng th\u00ec ch\u00fang c\u00f3 t\u1ef7 l\u1ec7 neodymium v\u00e0 s\u1eaft cao h\u01a1n, n\u00e2ng cao hi\u1ec7u su\u1ea5t t\u1eeb tr\u01b0\u1eddng.<\/li>\n<li><strong>Kh\u00e1ng c\u01b0\u1ee1ng b\u1ee9c (Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb):<\/strong> Trong c\u00e1c \u0111\u1ed9ng c\u01a1 ho\u1eb7c thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac v\u1edbi t\u1eeb tr\u01b0\u1eddng b\u00ean ngo\u00e0i ho\u1eb7c rung \u0111\u1ed9ng, \u01b0u ti\u00ean c\u00e1c nam ch\u00e2m c\u00f3 th\u00eam dysprosium ho\u1eb7c terbium. C\u00e1c nguy\u00ean t\u1ed1 n\u00e0y t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb, gi\u1eef cho c\u00f4ng su\u1ea5t c\u1ee7a nam ch\u00e2m \u1ed5n \u0111\u1ecbnh theo th\u1eddi gian.<\/li>\n<li><strong>Ch\u1ecbu nhi\u1ec7t:<\/strong> C\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao (nh\u01b0 \u00f4 t\u00f4 ho\u1eb7c h\u00e0ng kh\u00f4ng) c\u1ea7n nam ch\u00e2m c\u00f3 h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t. T\u00ecm ki\u1ebfm c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 ch\u1ee9a c\u00e1c kim lo\u1ea1i hi\u1ebfm t\u0103ng c\u01b0\u1eddng gi\u00fap duy tr\u00ec t\u00ednh ch\u1ea5t t\u1eeb tr\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n:<\/strong> N\u1ebfu nam ch\u00e2m c\u1ee7a b\u1ea1n s\u1ebd ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m ho\u1eb7c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ee9a cobalt, \u0111\u1ed3ng ho\u1eb7c nh\u00f4m gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc.<\/li>\n<\/ul>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p ho\u1eb7c k\u1ef9 s\u01b0 mu\u1ed1n t\u00ecm ki\u1ebfm s\u1ef1 ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o, NBAEM cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a ng\u00e0nh. D\u1ecbch v\u1ee5 t\u01b0 v\u1ea5n c\u1ee7a h\u1ecd c\u00f3 th\u1ec3 h\u01b0\u1edbng d\u1eabn b\u1ea1n ch\u1ecdn l\u1ef1a s\u1ef1 c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1\u2014d\u00f9 l\u00e0 \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111\u1ed9 neodymium, th\u00eam ch\u1ea5t \u1ed5n \u0111\u1ecbnh, hay pha tr\u1ed9n c\u00e1c kim lo\u1ea1i hi\u1ebfm \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 th\u00e0nh ph\u1ea7n chi ti\u1ebft c\u1ee7a nam ch\u00e2m NdFeB bao g\u1ed3m c\u00e1c lo\u1ea1i h\u1ee3p kim neodymium, s\u1eaft, boron v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u00fang \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1eeb v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p>","protected":false},"author":1,"featured_media":2845,"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-2806","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\/Emerging_Magnet_Tech_and_Market_Trends_mVi7W74A4.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2806","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=2806"}],"version-history":[{"count":2,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2806\/revisions"}],"predecessor-version":[{"id":2957,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/2806\/revisions\/2957"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2845"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=2806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=2806"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=2806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}