{"id":3365,"date":"2025-11-17T07:37:33","date_gmt":"2025-11-17T07:37:33","guid":{"rendered":"https:\/\/nbaem.com\/?p=3365"},"modified":"2025-11-17T05:33:29","modified_gmt":"2025-11-17T05:33:29","slug":"how-to-choose-magnet-coating","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/how-to-choose-magnet-coating\/","title":{"rendered":"C\u00e1ch ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m t\u1ed1t nh\u1ea5t \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n v\u00e0 b\u1ec1n b\u1ec9"},"content":{"rendered":"<h2>T\u1ea1i sao Nam ch\u00e2m Neodymium c\u1ea7n l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-2074\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW.webp\" alt=\"\" width=\"880\" height=\"448\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-18x9.webp 18w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-200x102.webp 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-300x153.webp 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-400x204.webp 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-600x305.webp 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-768x391.webp 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW-800x407.webp 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/09\/Strongest_Magnets_in_the_World_3zScTZdLW.webp 880w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/><\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Neodymium_magnet\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">Nam ch\u00e2m neodymium (NdFeB)<\/span> <\/strong><\/a>\u0111\u01b0\u1ee3c l\u00e0m t\u1eeb h\u1ed7n h\u1ee3p neodymium, s\u1eaft v\u00e0 boron. Trong khi c\u00e1c nguy\u00ean t\u1ed1 n\u00e0y t\u1ea1o ra l\u1ef1c t\u1eeb m\u1ea1nh, ch\u00fang c\u0169ng khi\u1ebfn nam ch\u00e2m d\u1ec5 b\u1ecb \u0103n m\u00f2n. Ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m, h\u01a1i \u1ea9m ho\u1eb7c th\u1eadm ch\u00ed ti\u1ebfp x\u00fac nh\u1eb9 v\u1edbi n\u01b0\u1edbc c\u00f3 th\u1ec3 g\u00e2y r\u1ec9 s\u00e9t v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m nhanh ch\u00f3ng.<\/p>\n<p>Kh\u00f4ng c\u00f3 l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p, nam ch\u00e2m NdFeB c\u00f3 th\u1ec3:<\/p>\n<ul>\n<li>M\u1ea5t \u0111i s\u1ee9c m\u1ea1nh t\u1eeb do oxy h\u00f3a b\u1ec1 m\u1eb7t<\/li>\n<li>G\u1eb7p ph\u1ea3i h\u01b0 h\u1ecfng c\u1ea5u tr\u00fac nh\u01b0 v\u1ee1 v\u1ee5n v\u00e0 bong tr\u00f3c<\/li>\n<li>H\u1ecfng s\u1edbm trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/li>\n<\/ul>\n<p>L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 kh\u00f4ng ch\u1ec9 ng\u0103n ch\u1eb7n \u0103n m\u00f2n. Ch\u00fang c\u00f2n cung c\u1ea5p:<\/p>\n<ul>\n<li><strong>Kh\u00e1ng m\u00e0i m\u00f2n<\/strong>, b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi tr\u1ea7y x\u01b0\u1edbc v\u00e0 m\u00e0i m\u00f2n trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ho\u1eb7c s\u1eed d\u1ee5ng<\/li>\n<li><strong>N\u00e2ng cao t\u00ednh th\u1ea9m m\u1ef9<\/strong>, mang l\u1ea1i v\u1ebb ngo\u00e0i b\u00f3ng b\u1ea9y, chuy\u00ean nghi\u1ec7p<\/li>\n<li><strong>C\u00e1ch \u0111i\u1ec7n<\/strong>, gi\u1ea3m nguy c\u01a1 ch\u1eadp m\u1ea1ch trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, l\u1edbp ph\u1ee7 l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu kh\u00f4ng ch\u1ec9 \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n c\u1ee7a nam ch\u00e2m m\u00e0 c\u00f2n \u0111\u1ec3 n\u00e2ng cao t\u00ednh ch\u1ea5t b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 nh\u1eb1m mang l\u1ea1i l\u1ee3i \u00edch th\u1ef1c t\u1ebf v\u00e0 th\u1ea9m m\u1ef9.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n xem x\u00e9t khi ch\u1ecdn l\u1edbp ph\u1ee7 cho nam ch\u00e2m<\/h2>\n<p>&nbsp;<\/p>\n<p>Vi\u1ec7c ch\u1ecdn l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p cho nam ch\u00e2m neodymium ph\u1ee5 thu\u1ed9c ph\u1ea7n l\u1edbn v\u00e0o n\u01a1i v\u00e0 c\u00e1ch nam ch\u00e2m s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb:<\/p>\n<ul>\n<li><strong>M\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng v\u00e0 ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m:<\/strong> Nam ch\u00e2m ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m cao ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n bi\u1ec3n c\u1ea7n l\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n v\u00e0 h\u01b0 h\u1ecfng do n\u01b0\u1edbc t\u1ed1t.<\/li>\n<li><strong>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t:<\/strong> C\u00e1c l\u1edbp ph\u1ee7 kh\u00e1c nhau x\u1eed l\u00fd nhi\u1ec7t kh\u00e1c nhau. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c bi\u1ebfn \u0111\u1ed9ng, h\u00e3y ch\u1ecdn l\u1edbp ph\u1ee7 kh\u00f4ng b\u1ecb suy gi\u1ea3m ho\u1eb7c m\u1ea5t \u0111\u1ed9 b\u00e1m d\u00ednh d\u01b0\u1edbi nh\u1eefng \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3.<\/li>\n<li><strong>Y\u00eau c\u1ea7u v\u1ec1 c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh:<\/strong> L\u1edbp ph\u1ee7 ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c m\u00e0i m\u00f2n v\u1eadt l\u00fd nh\u01b0 m\u00e0i m\u00f2n, va \u0111\u1eadp ho\u1eb7c rung \u0111\u1ed9ng. \u0110\u1ed9 b\u00e1m d\u00ednh t\u1ed1t gi\u00fap ng\u0103n ch\u1eb7n bong tr\u00f3c ho\u1eb7c ph\u1ed3ng r\u1ed9p trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd v\u00e0 s\u1eed d\u1ee5ng.<\/li>\n<li><strong>Y\u00eau c\u1ea7u v\u1ec1 quy \u0111\u1ecbnh v\u00e0 an to\u00e0n:<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf, ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m ho\u1eb7c sinh h\u1ecdc, l\u1edbp ph\u1ee7 ho\u1eb7c l\u1edbp ho\u00e0n thi\u1ec7n \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t b\u1edfi FDA nh\u01b0 parylene v\u00e0 v\u00e0ng l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t.<\/li>\n<li><strong>C\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t:<\/strong> \u0110\u00e1nh gi\u00e1 chi ph\u00ed c\u1ee7a l\u1edbp ph\u1ee7 so v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh b\u1ea3o v\u1ec7 v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a n\u00f3. \u0110\u00f4i khi \u0111\u1ea7u t\u01b0 nhi\u1ec1u h\u01a1n ban \u0111\u1ea7u s\u1ebd ng\u0103n ch\u1eb7n c\u00e1c th\u1ea5t b\u1ea1i t\u1ed1n k\u00e9m sau n\u00e0y.<\/li>\n<li><strong>Th\u1ea9m m\u1ef9 v\u00e0 t\u00ednh n\u0103ng ch\u1ee9c n\u0103ng:<\/strong> M\u1ed9t s\u1ed1 ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u1ea7n l\u1edbp ph\u1ee7 c\u00f3 v\u1ebb ngo\u00e0i \u0111\u1eb9p ho\u1eb7c cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng b\u1ed5 sung nh\u01b0 c\u00e1ch nhi\u1ec7t ho\u1eb7c gi\u1ea3m ma s\u00e1t. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng.<\/li>\n<\/ul>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y gi\u00fap b\u1ea1n ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh, n\u00e2ng cao \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t. \u0110\u1ec3 c\u00f3 nh\u1eefng hi\u1ec3u bi\u1ebft k\u1ef9 thu\u1eadt v\u1ec1 s\u1ea3n xu\u1ea5t nam ch\u00e2m v\u00e0 l\u1edbp ph\u1ee7, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y<strong><span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/how-to-make-ndfeb-magnet\/\" target=\"_blank\" rel=\"noopener\">c\u00e1ch l\u00e0m nam ch\u00e2m NdFeB<\/a><\/span><\/strong> h\u1eefu \u00edch.<\/p>\n<h2>C\u00e1c lo\u1ea1i l\u1edbp ph\u1ee7 nam ch\u00e2m ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang<\/h2>\n<p>Vi\u1ec7c ch\u1ecdn l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p cho nam ch\u00e2m neodymium ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e2n b\u1eb1ng gi\u1eefa b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng quan nhanh v\u1ec1 c\u00e1c lo\u1ea1i l\u1edbp ph\u1ee7 nam ch\u00e2m ph\u1ed5 bi\u1ebfn v\u00e0 nh\u1eefng g\u00ec ch\u00fang cung c\u1ea5p:<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i l\u1edbp ph\u1ee7<\/th>\n<th>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/th>\n<th>Ch\u1ed1ng \u0103n m\u00f2n<\/th>\n<th>D\u1ea3i nhi\u1ec7t \u0111\u1ed9<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<th>\u1ee8ng d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Nickel (Ni-Cu-Ni)<\/strong><\/td>\n<td>L\u1edbp ba l\u1edbp \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd<\/td>\n<td>Cao<\/td>\n<td>-40\u00b0C \u0111\u1ebfn 200\u00b0C<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>S\u1eed d\u1ee5ng chung, \u0111\u1ed9ng c\u01a1, m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u1ebdm<\/strong><\/td>\n<td>L\u1edbp hy sinh, ti\u1ebft ki\u1ec7m chi ph\u00ed<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>L\u00ean \u0111\u1ebfn 150\u00b0C<\/td>\n<td>Th\u1ea5p<\/td>\n<td>\u0110i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch<\/td>\n<\/tr>\n<tr>\n<td><strong>Epoxy<\/strong><\/td>\n<td>L\u1edbp ch\u1eafn n\u01b0\u1edbc v\u00e0 mu\u1ed1i, \u0111\u1ed9 b\u00e1m d\u00ednh t\u1ed1t<\/td>\n<td>Cao<\/td>\n<td>L\u00ean \u0111\u1ebfn 120\u00b0C<\/td>\n<td>Th\u1ea5p \u0111\u1ebfn Trung b\u00ecnh<\/td>\n<td>H\u1ea3i qu\u00e2n, ngo\u00e0i tr\u1eddi, c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td><strong>V\u00e0ng<\/strong><\/td>\n<td>Ho\u00e0n thi\u1ec7n trang tr\u00ed, t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>L\u00ean \u0111\u1ebfn 150\u00b0C<\/td>\n<td>Cao<\/td>\n<td>Thi\u1ebft b\u1ecb y t\u1ebf, ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m<\/td>\n<\/tr>\n<tr>\n<td><strong>Parylen<\/strong><\/td>\n<td>L\u1edbp ph\u1ee7 m\u1ecfng, \u0111\u01b0\u1ee3c FDA ph\u00ea duy\u1ec7t<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>-50\u00b0C \u0111\u1ebfn 80\u00b0C<\/td>\n<td>Cao<\/td>\n<td>S\u1eed d\u1ee5ng y t\u1ebf, th\u1ef1c ph\u1ea9m, theo quy \u0111\u1ecbnh c\u1ee7a FDA<\/td>\n<\/tr>\n<tr>\n<td><strong>Cao su\/ Nh\u1ef1a<\/strong><\/td>\n<td>Ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc, ch\u1ed1ng va \u0111\u1eadp<\/td>\n<td>T\u1ed1t<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>\u0110i\u1ec7n t\u1eed ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc, h\u00e0ng ti\u00eau d\u00f9ng<\/td>\n<\/tr>\n<tr>\n<td><strong>PTFE (Teflon)<\/strong><\/td>\n<td>Ch resistant h\u00f3a ch\u1ea5t, ma s\u00e1t th\u1ea5p<\/td>\n<td>Cao<\/td>\n<td>L\u00ean \u0111\u1ebfn 260\u00b0C<\/td>\n<td>Cao<\/td>\n<td>Ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o<\/td>\n<\/tr>\n<tr>\n<td><strong>Everlube\/Phosphating<\/strong><\/td>\n<td>Ho\u00e0n thi\u1ec7n ch\u1ed1ng m\u00e0i m\u00f2n c\u00f4ng nghi\u1ec7p<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>\u0110\u1ebfn 200\u00b0C<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>M\u00e1y m\u00f3c n\u1eb7ng, \u00f4 t\u00f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><\/h3>\n<ul>\n<li><strong>Ph\u1ee7 Nickel<\/strong> l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho s\u1ef1 b\u1ea3o v\u1ec7 v\u1eefng ch\u1eafc v\u00e0 \u0111\u1ed9 b\u1ec1n to\u00e0n di\u1ec7n.<\/li>\n<li><strong>K\u1ebdm<\/strong> ho\u1ea1t \u0111\u1ed9ng t\u1ed1t n\u1ebfu b\u1ea1n mu\u1ed1n th\u1ee9 g\u00ec \u0111\u00f3 r\u1ebb ti\u1ec1n nh\u01b0ng v\u1eabn b\u1ea3o v\u1ec7.<\/li>\n<li><strong>L\u1edbp ph\u1ee7 epoxy<\/strong> ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t c\u1ee7a bi\u1ec3n ho\u1eb7c mu\u1ed1i.<\/li>\n<li><strong>V\u00e0ng v\u00e0 parylene<\/strong> \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cho c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc v\u00e0 ph\u00ea duy\u1ec7t c\u1ee7a FDA.<\/li>\n<li><strong>L\u1edbp ph\u1ee7 cao su v\u00e0 nh\u1ef1a<\/strong> t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp c\u00f9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc.<\/li>\n<li><strong>PTFE<\/strong> ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t khi \u01b0u ti\u00ean kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t v\u00e0 ma s\u00e1t th\u1ea5p.<\/li>\n<li><strong>Everlube v\u00e0 phosphating<\/strong> gi\u00fap gi\u1ea3m m\u00e0i m\u00f2n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c lo\u1ea1i m\u1ea1 t\u1eeb t\u00ednh, h\u00e3y xem b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 th\u00e0nh ph\u1ea7n nam ch\u00e2m NdFeB, gi\u1ea3i th\u00edch c\u00e1ch l\u1edbp ph\u1ee7 gi\u00fap b\u1ea3o v\u1ec7 c\u00e1c v\u1eadt li\u1ec7u nam ch\u00e2m nh\u1ea1y c\u1ea3m.<\/p>\n<h2>B\u1ea3ng so s\u00e1nh l\u1edbp ph\u1ee7<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1i nh\u00ecn nhanh v\u1ec1 c\u00e1c lo\u1ea1i <strong>l\u1edbp ph\u1ee7 nam ch\u00e2m neodymium<\/strong> v\u00e0 c\u00e1ch ch\u00fang so s\u00e1nh v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, ch\u1ecbu nhi\u1ec7t, \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed:<\/p>\n<table>\n<thead>\n<tr>\n<th>L\u1edbp ph\u1ee7<\/th>\n<th>Ch\u1ed1ng \u0103n m\u00f2n<\/th>\n<th>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 (\u00b0C)<\/th>\n<th>\u0110\u1ed9 b\u1ec1n<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<th>\u1ee8ng d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Nickel (Ni-Cu-Ni)<\/strong><\/td>\n<td>Cao<\/td>\n<td>-40 \u0111\u1ebfn 150<\/td>\n<td>T\u1ed1t<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>D\u00f9ng chung, \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u1ebdm<\/strong><\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>-30 \u0111\u1ebfn 100<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Th\u1ea5p<\/td>\n<td>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, ng\u1eafn h\u1ea1n<\/td>\n<\/tr>\n<tr>\n<td><strong>Epoxy<\/strong><\/td>\n<td>Cao<\/td>\n<td>-40 \u0111\u1ebfn 120<\/td>\n<td>Cao (kh\u00e1ng m\u00e0i m\u00f2n)<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>H\u1ea3i qu\u00e2n, ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc<\/td>\n<\/tr>\n<tr>\n<td><strong>V\u00e0ng<\/strong><\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>-20 \u0111\u1ebfn 150<\/td>\n<td>Cao<\/td>\n<td>Cao<\/td>\n<td>Y t\u1ebf, trang tr\u00ed<\/td>\n<\/tr>\n<tr>\n<td><strong>Parylen<\/strong><\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>-40 \u0111\u1ebfn 80<\/td>\n<td>M\u1ecfng, linh ho\u1ea1t<\/td>\n<td>Cao<\/td>\n<td>\u0110\u01b0\u1ee3c FDA ch\u1ea5p thu\u1eadn, th\u1ef1c ph\u1ea9m, y t\u1ebf<\/td>\n<\/tr>\n<tr>\n<td><strong>Cao su\/ Nh\u1ef1a<\/strong><\/td>\n<td>T\u1ed1t<\/td>\n<td>-20 \u0111\u1ebfn 100<\/td>\n<td>Cao (kh\u00e1ng va \u0111\u1eadp)<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc, ch\u1ed1ng s\u1ed1c<\/td>\n<\/tr>\n<tr>\n<td><strong>PTFE (Teflon)<\/strong><\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>-100 \u0111\u1ebfn 260<\/td>\n<td>T\u1ed1t<\/td>\n<td>Cao<\/td>\n<td>Kh\u00e1ng h\u00f3a ch\u1ea5t, gi\u1ea3m ma s\u00e1t<\/td>\n<\/tr>\n<tr>\n<td><strong>Everlube\/Phosphating<\/strong><\/td>\n<td>T\u1ed1t<\/td>\n<td>-30 \u0111\u1ebfn 150<\/td>\n<td>Xu\u1ea5t s\u1eafc (ch\u1ed1ng m\u00e0i m\u00f2n)<\/td>\n<td>Th\u1ea5p - Trung b\u00ecnh<\/td>\n<td>Ph\u1ea7n thay th\u1ebf trong c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m k\u00e8m v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/h3>\n<ul>\n<li><strong>Nickel (Ni-Cu-Ni):<\/strong> T\u1ed1t cho s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y, \u0111\u1eb7c bi\u1ec7t trong \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4. N\u00f3 cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n m\u1ea1nh m\u1ebd nh\u01b0ng c\u00f3 th\u1ec3 d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng trong m\u00f4i tr\u01b0\u1eddng axit cao.<\/li>\n<li><strong>K\u1ebdm:<\/strong> L\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch nh\u01b0ng b\u1ea3o v\u1ec7 b\u1eb1ng c\u00e1ch \u0103n m\u00f2n tr\u01b0\u1edbc. L\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi ng\u1eafn h\u1ea1n nh\u01b0ng \u00edt b\u1ec1n l\u00e2u d\u00e0i.<\/li>\n<li><strong>Epoxy:<\/strong> Xu\u1ea5t s\u1eafc trong m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc v\u00e0 mu\u1ed1i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nam ch\u00e2m n\u0103ng l\u01b0\u1ee3ng ngo\u00e0i kh\u01a1i. Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u0169ng r\u1ea5t t\u1ed1t.<\/li>\n<li><strong>V\u00e0ng:<\/strong> Ho\u00e0n h\u1ea3o cho c\u00e1c c\u1ea5y gh\u00e9p y t\u1ebf v\u00e0 thi\u1ebft b\u1ecb c\u1ea7n l\u1edbp ph\u1ee7 t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc nh\u01b0ng \u0111i k\u00e8m v\u1edbi m\u1ee9c gi\u00e1 cao h\u01a1n.<\/li>\n<li><strong>Parylene:<\/strong> S\u1eed d\u1ee5ng trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 d\u1ee5ng c\u1ee5 y t\u1ebf n\u01a1i c\u1ea7n ph\u00ea duy\u1ec7t c\u1ee7a FDA. L\u1edbp ph\u1ee7 m\u1ecfng gi\u00fap duy tr\u00ec k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><strong>Gom\/ Nh\u1ef1a cao su:<\/strong> Ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u1ea7n b\u1ea3o v\u1ec7 ch\u1ed1ng va \u0111\u1eadp v\u00e0 ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc.<\/li>\n<li><strong>PTFE (Teflon):<\/strong> T\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t kh\u1eafc nghi\u1ec7t, nh\u01b0 c\u1ea3m bi\u1ebfn h\u00f3a ch\u1ea5t ho\u1eb7c \u1ee9ng d\u1ee5ng ngo\u00e0i kh\u01a1i.<\/li>\n<li><strong>Everlube\/ Phosphating:<\/strong> Ph\u1ed5 bi\u1ebfn cho c\u00e1c nam ch\u00e2m c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng xuy\u00ean ch\u1ecbu m\u00e0i m\u00f2n v\u00e0 hao m\u00f2n.<\/li>\n<\/ul>\n<p>Bi\u1ec3u \u0111\u1ed3 n\u00e0y gi\u00fap b\u1ea1n nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh lo\u1ea1i m\u1ea1 nam ch\u00e2m ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n<h2>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m t\u1ed1t nh\u1ea5t<\/h2>\n<p>Ch\u1ecdn l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p cho nam ch\u00e2m neodymium b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c hi\u1ec3u r\u00f5 n\u01a1i v\u00e0 c\u00e1ch ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 theo d\u00f5i:<\/p>\n<ul>\n<li><strong>\u0110\u00e1nh gi\u00e1 m\u00f4i tr\u01b0\u1eddng \u1ee9ng d\u1ee5ng:<\/strong> Xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u1ed9 \u1ea9m, ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc mu\u1ed1i, h\u00f3a ch\u1ea5t ho\u1eb7c b\u1ee5i, c\u0169ng nh\u01b0 c\u00e1c \u00e1p l\u1ef1c c\u01a1 h\u1ecdc nh\u01b0 m\u00e0i m\u00f2n ho\u1eb7c va \u0111\u1eadp. \u0110i\u1ec1u n\u00e0y s\u1ebd thu h\u1eb9p c\u00e1c l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7.<\/li>\n<li><strong>Ph\u00f9 h\u1ee3p l\u1edbp ph\u1ee7 v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3:<\/strong> V\u00ed d\u1ee5, c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i th\u01b0\u1eddng c\u1ea7n l\u1edbp ph\u1ee7 epoxy ho\u1eb7c PTFE \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n, trong khi c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf y\u00eau c\u1ea7u l\u1edbp ho\u00e0n thi\u1ec7n t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc nh\u01b0 v\u00e0ng ho\u1eb7c parylene. Hi\u1ec3u r\u00f5 m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng gi\u00fap ch\u1ecdn l\u1edbp b\u1ea3o v\u1ec7 t\u1ed1t nh\u1ea5t.<\/li>\n<li><strong>M\u1eabu th\u1eed nghi\u1ec7m cho kh\u1ea3 n\u0103ng b\u00e1m d\u00ednh v\u00e0 \u0111\u1ed9 b\u1ec1n:<\/strong> Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t, l\u1ea5y m\u1eabu nam ch\u00e2m \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp v\u00e0 ki\u1ec3m tra ch\u00fang trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf\u2014ki\u1ec3m tra xem l\u1edbp ph\u1ee7 c\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00e0i m\u00f2n, \u0103n m\u00f2n v\u00e0 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng. Vi\u1ec7c ki\u1ec3m tra th\u1ef1c t\u1ebf n\u00e0y gi\u00fap tr\u00e1nh c\u00e1c l\u1ed7i t\u1ed1n k\u00e9m v\u1ec1 sau.<\/li>\n<li><strong>Xem x\u00e9t c\u00e1c gi\u1ea3i ph\u00e1p ph\u1ee7 t\u00f9y ch\u1ec9nh:<\/strong> Nhi\u1ec1u nh\u00e0 cung c\u1ea5p cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t nam ch\u00e2m t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u \u0111\u1eb7c th\u00f9. \u0110\u1eebng ng\u1ea7n ng\u1ea1i th\u1ea3o lu\u1eadn v\u1ec1 y\u00eau c\u1ea7u ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n v\u1edbi h\u1ecd \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 c\u00e2n \u0111\u1ed1i chi ph\u00ed.<\/li>\n<\/ul>\n<p>C\u00e1c b\u01b0\u1edbc n\u00e0y \u0111\u1ea3m b\u1ea3o b\u1ea1n ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m b\u1ea3o v\u1ec7 hi\u1ec7u qu\u1ea3 v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn chi ti\u1ebft v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m v\u00e0 l\u1edbp ph\u1ee7, h\u00e3y xem <a href=\"https:\/\/nbaem.com\/vi\/magnet-coating\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">c\u00e1c lo\u1ea1i m\u1ea1 nam ch\u00e2m<\/span><\/strong><\/a> c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<h2>Khuy\u1ebfn ngh\u1ecb theo ng\u00e0nh ngh\u1ec1<\/h2>\n<p>Vi\u1ec7c ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c y\u00eau c\u1ea7u \u0111\u1eb7c th\u00f9 c\u1ee7a n\u00f3:<\/p>\n<ul>\n<li><strong>\u00d4 t\u00f4 v\u00e0 \u0110\u1ed9ng c\u01a1:<\/strong> L\u1edbp ph\u1ee7 Nickel ho\u1eb7c Nickel \u0111en ph\u1ed5 bi\u1ebfn v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n xu\u1ea5t s\u1eafc v\u00e0 \u0111\u1ed9 b\u1ec1n d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb y t\u1ebf:<\/strong> L\u1edbp ph\u1ee7 v\u00e0ng, parylene ho\u1eb7c titanium nitride \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng do t\u00ednh t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c FDA ch\u1ea5p thu\u1eadn. Nh\u1eefng l\u1edbp ph\u1ee7 n\u00e0y \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m.<\/li>\n<li><strong>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 ngo\u00e0i kh\u01a1i:<\/strong> L\u1edbp ph\u1ee7 epoxy ho\u1eb7c PTFE ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t, \u1ea9m \u01b0\u1edbt v\u00e0 m\u1eb7n nh\u1edd kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc v\u00e0 ch\u1ed1ng ho\u00e1 ch\u1ea5t v\u01b0\u1ee3t tr\u1ed9i.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng:<\/strong> L\u1edbp ph\u1ee7 k\u1ebdm ho\u1eb7c nh\u1ef1a cung c\u1ea5p h\u00e0ng r\u00e0o ch\u1ed1ng \u0103n m\u00f2n ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n kh\u00e1, l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft b\u1ecb h\u00e0ng ng\u00e0y.<\/li>\n<li><strong>X\u1eed l\u00fd th\u1ef1c ph\u1ea9m:<\/strong> L\u1edbp ph\u1ee7 parylene \u0111\u01b0\u1ee3c FDA ch\u1ea5p thu\u1eadn ho\u1eb7c v\u1ecf th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 c\u1ea7n thi\u1ebft, cung c\u1ea5p l\u1edbp ho\u00e0n thi\u1ec7n an to\u00e0n, v\u1ec7 sinh v\u00e0 ch\u1ed1ng \u0103n m\u00f2n \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t v\u1ec1 quy \u0111\u1ecbnh.<\/li>\n<\/ul>\n<p>L\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n kh\u00f4ng ch\u1ec9 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd nam ch\u00e2m m\u00e0 c\u00f2n n\u00e2ng cao hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb. \u0110\u1ec3 c\u00f3 c\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb t\u00ednh ti\u00ean ti\u1ebfn, xem x\u00e9t c\u00e1c \u0111\u1ed5i m\u1edbi trong <strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/new-magnetic-technologies-for-ndfeb-magnet\/\" target=\"_blank\" rel=\"noopener\">c\u00e1c c\u00f4ng ngh\u1ec7 t\u1eeb t\u00ednh m\u1edbi cho nam ch\u00e2m NdFeB<\/a> <\/span><\/strong>c\u00f3 th\u1ec3 cung c\u1ea5p th\u00eam c\u00e1c th\u00f4ng tin chi ti\u1ebft.<\/p>\n<h2>Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh khi ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m<\/h2>\n<p>Ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 kh\u00e1 kh\u00f3 kh\u0103n, v\u00e0 m\u1ed9t s\u1ed1 sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 t\u1ed1n k\u00e9m v\u1ec1 sau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd:<\/p>\n<ul>\n<li><strong>B\u1ecf qua \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 v\u00e0 chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t:<\/strong> L\u1edbp ph\u1ee7 m\u1ecfng ho\u1eb7c kh\u00f4ng \u0111\u1ec1u kh\u00f4ng b\u1ea3o v\u1ec7 nam ch\u00e2m t\u1ed1t, v\u00e0 vi\u1ec7c chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t k\u00e9m c\u00f3 th\u1ec3 khi\u1ebfn l\u1edbp ph\u1ee7 bong tr\u00f3c ho\u1eb7c n\u1ed5i b\u1ec1 m\u1eb7t, gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/li>\n<li><strong>B\u1ecf qua gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9:<\/strong> M\u1ed7i l\u1edbp ph\u1ee7 c\u00f3 nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a m\u00e0 n\u00f3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng. V\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n n\u00e0y c\u00f3 th\u1ec3 l\u00e0m nam ch\u00e2m m\u1ea5t t\u1eeb t\u00ednh (kh\u1eed t\u1eeb) ho\u1eb7c l\u1edbp ph\u1ee7 b\u1ecb n\u1ee9t ho\u1eb7c xu\u1ed1ng c\u1ea5p.<\/li>\n<li><strong>Ch\u1ecdn l\u1edbp ph\u1ee7 d\u1ef1a ch\u1ec9 v\u00e0o chi ph\u00ed:<\/strong> L\u1edbp ph\u1ee7 r\u1ebb h\u01a1n c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m ti\u1ec1n ban \u0111\u1ea7u nh\u01b0ng th\u01b0\u1eddng nhanh h\u1ecfng h\u01a1n, y\u00eau c\u1ea7u thay th\u1ebf ho\u1eb7c s\u1eeda ch\u1eefa s\u1edbm. Lu\u00f4n ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a l\u1edbp ph\u1ee7 d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng.<\/li>\n<li><strong>G\u00e2y h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd v\u00e0 l\u1eafp r\u00e1p:<\/strong> Nam ch\u00e2m c\u00f3 l\u1edbp ph\u1ee7 d\u1ec5 b\u1ecb s\u1ee9t m\u1ebb ho\u1eb7c tr\u1ea7y x\u01b0\u1edbc n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd c\u1ea9n th\u1eadn, l\u00e0m m\u1ea5t t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n. S\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd c\u1ea9n th\u1eadn v\u00e0 xem x\u00e9t \u0111\u00f3ng g\u00f3i b\u1ea3o v\u1ec7.<\/li>\n<\/ul>\n<p>Tr\u00e1nh nh\u1eefng sai l\u1ea7m n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 c\u1ee7a nam ch\u00e2m neodymium ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 tu\u1ed5i th\u1ecd l\u00e2u h\u01a1n.<\/p>\n<h2>T\u1ea1i sao ch\u1ecdn NBAEM cho nam ch\u00e2m c\u00f3 l\u1edbp ph\u1ee7<\/h2>\n<p>NBAEM n\u1ed5i b\u1eadt khi n\u00f3i \u0111\u1ebfn <strong>l\u1edbp ph\u1ee7 nam ch\u00e2m t\u00f9y ch\u1ec9nh<\/strong>. Quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t c\u1ee7a h\u1ecd \u0111\u1ea3m b\u1ea3o m\u1ed7i l\u00f4 h\u00e0ng \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n cao, b\u1ea3o v\u1ec7 nam ch\u00e2m Neodymium c\u1ee7a b\u1ea1n kh\u1ecfi \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n.<\/p>\n<h3>C\u00e1c l\u1ee3i \u00edch ch\u00ednh:<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>L\u1edbp ph\u1ee7 t\u00f9y ch\u1ec9nh<\/td>\n<td>Ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 nhu c\u1ea7u c\u1ee7a b\u1ea1n<\/td>\n<\/tr>\n<tr>\n<td>C\u00f4ng ngh\u1ec7 m\u1ea1 ti\u00ean ti\u1ebfn<\/td>\n<td>Ho\u00e0n thi\u1ec7n b\u1ec1n b\u1ec9, \u0111\u1ed3ng \u0111\u1ec1u<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 c\u1ea3 c\u1ea1nh tranh<\/td>\n<td>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed m\u00e0 kh\u00f4ng c\u1eaft g\u00f3c<\/td>\n<\/tr>\n<tr>\n<td>Th\u1eddi gian d\u1eabn nhanh<\/td>\n<td>Th\u1eddi gian ph\u1ea3n h\u1ed3i nhanh \u0111\u1ec3 gi\u1eef cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u0111\u00fang ti\u1ebfn \u0111\u1ed9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Th\u00eam v\u00e0o \u0111\u00f3, NBAEM chia s\u1ebb <strong>c\u00e2u chuy\u1ec7n th\u00e0nh c\u00f4ng th\u1ef1c t\u1ebf v\u00e0 c\u00e1c nghi\u00ean c\u1ee9u \u0111i\u1ec3n h\u00ecnh<\/strong> ch\u1ee9ng minh l\u1edbp ph\u1ee7 c\u1ee7a h\u1ecd ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t\u2014l\u00fd t\u01b0\u1edfng n\u1ebfu b\u1ea1n mu\u1ed1n \u0111\u1ed9 tin c\u1eady.<\/p>\n<p>N\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi nam ch\u00e2m Neodymium, chuy\u00ean m\u00f4n c\u1ee7a NBAEM \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n, d\u00f9 l\u00e0 cho \u00f4 t\u00f4, y t\u1ebf hay n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00e1c nhau v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd c\u1ee7a ch\u00fang, h\u00e3y xem trang chi ti\u1ebft c\u1ee7a h\u1ecd v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/type-of-magnetic-materials\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/span><\/strong><\/a><strong><span style=\"color: #ff6600;\">.<\/span><\/strong><\/p>\n<h2>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 l\u1edbp ph\u1ee7 nam ch\u00e2m<\/h2>\n<h3>L\u1edbp ph\u1ee7 nam ch\u00e2m b\u1ec1n nh\u1ea5t l\u00e0 g\u00ec?<\/h3>\n<p>L\u1edbp ph\u1ee7 Nickel (Ni-Cu-Ni) \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn r\u1ed9ng r\u00e3i v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n cao, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. Epoxy v\u00e0 PTFE (Teflon) c\u0169ng cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ho\u00e1 ch\u1ea5t t\u1ed1t. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng cao c\u1ea5p nh\u01b0 thi\u1ebft b\u1ecb y t\u1ebf, parylene cung c\u1ea5p m\u1ed9t l\u1edbp m\u1ecfng, \u0111\u01b0\u1ee3c FDA ch\u1ea5p thu\u1eadn, b\u1ec1n ch\u1eafc v\u00e0 k\u00e9o d\u00e0i d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<h3>L\u1edbp ph\u1ee7 nam ch\u00e2m c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa ho\u1eb7c ph\u1ee7 l\u1ea1i kh\u00f4ng?<\/h3>\n<p>Vi\u1ec7c s\u1eeda ch\u1eefa l\u1edbp ph\u1ee7 tr\u00ean nam ch\u00e2m Neodymium kh\u00e1 ph\u1ee9c t\u1ea1p v\u00ec c\u00f3 nguy c\u01a1 l\u00e0m h\u1ecfng nam ch\u00e2m trong qu\u00e1 tr\u00ecnh. Th\u01b0\u1eddng th\u00ec, n\u1ebfu l\u1edbp ph\u1ee7 b\u1ecb tr\u1ea7y x\u01b0\u1edbc ho\u1eb7c m\u00f2n, vi\u1ec7c ph\u1ee7 l\u1ea1i \u0111\u00f2i h\u1ecfi ph\u1ea3i lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n l\u1edbp c\u0169 v\u00e0 ph\u1ee7 l\u1ea1i trong \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m so\u00e1t. M\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p t\u00f9y ch\u1ec9nh cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn s\u1eeda ch\u1eefa ho\u1eb7c ch\u1ec9nh s\u1eeda nh\u1ecf, nh\u01b0ng vi\u1ec7c ki\u1ec3m tra l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<h3>L\u1edbp ph\u1ee7 nam ch\u00e2m c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh t\u1eeb kh\u00f4ng?<\/h3>\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, l\u1edbp ph\u1ee7 ch\u1ec9 d\u00e0y r\u1ea5t \u00edt v\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh t\u1eeb. Tuy nhi\u00ean, l\u1edbp ph\u1ee7 qu\u00e1 d\u00e0y ho\u1eb7c n\u1eb7ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nh\u1eb9 tr\u01b0\u1eddng hi\u1ec7u qu\u1ea3 trong c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac g\u1ea7n. Vi\u1ec7c ch\u1ecdn l\u1edbp ph\u1ee7 m\u1ecfng, hi\u1ec7u su\u1ea5t cao c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u1eb7c t\u00ednh t\u1eeb trong khi v\u1eabn cung c\u1ea5p s\u1ef1 b\u1ea3o v\u1ec7.<\/p>\n<h3>C\u00f3 c\u00e1c l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u00f4ng?<\/h3>\n<p>C\u00f3, c\u00e1c l\u1edbp ph\u1ee7 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng nh\u01b0 epoxy d\u1ef1a tr\u00ean n\u01b0\u1edbc v\u00e0 parylene ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1edd t\u00e1c \u0111\u1ed9ng th\u1ea5p \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng. Ngo\u00e0i ra, c\u00e1c quy tr\u00ecnh gi\u1ea3m thi\u1ec3u ho\u00e1 ch\u1ea5t \u0111\u1ed9c h\u1ea1i, nh\u01b0 c\u00f4ng ngh\u1ec7 m\u1ea1 ti\u00ean ti\u1ebfn do c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e1ng tin c\u1eady s\u1eed d\u1ee5ng, gi\u00fap gi\u1ea3m d\u1ea5u ch\u00e2n m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p>N\u1ebfu b\u1ea1n c\u00f3 th\u00eam c\u00e2u h\u1ecfi c\u1ee5 th\u1ec3 v\u1ec1 t\u00f9y ch\u1ec9nh l\u1edbp ph\u1ee7 ho\u1eb7c ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n, h\u00e3y li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u1ecdc c\u00e1ch ch\u1ecdn l\u1edbp ph\u1ee7 nam ch\u00e2m cho nam ch\u00e2m Neodymium v\u1edbi c\u00e1c m\u1eb9o t\u1eeb chuy\u00ean gia v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 b\u1ec1n v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh.<\/p>","protected":false},"author":1,"featured_media":2074,"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-3365","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\/Strongest_Magnets_in_the_World_3zScTZdLW.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3365","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=3365"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3365\/revisions"}],"predecessor-version":[{"id":3411,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3365\/revisions\/3411"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/2074"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}