{"id":1950,"date":"2025-08-19T03:07:07","date_gmt":"2025-08-19T03:07:07","guid":{"rendered":"https:\/\/nbaem.com\/?p=1950"},"modified":"2025-08-20T06:04:27","modified_gmt":"2025-08-20T06:04:27","slug":"round-magnets-with-hole-and-without-hole-2","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/round-magnets-with-hole-and-without-hole-2\/","title":{"rendered":"Nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7, c\u00f4ng d\u1ee5ng v\u00e0 h\u01b0\u1edbng d\u1eabn"},"content":{"rendered":"<h2>C\u00e1c Nam Ch\u00e2m Tr\u00f2n L\u00e0 G\u00ec<\/h2>\n<p>Nam ch\u00e2m tr\u00f2n l\u00e0 c\u00e1c \u0111\u0129a t\u1eeb t\u00ednh h\u00ecnh tr\u00f2n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng ti\u00eau d\u00f9ng, c\u00f4ng nghi\u1ec7p v\u00e0 k\u1ef9 thu\u1eadt. Ch\u00fang l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh d\u1ea1ng nam ch\u00e2m ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00ec cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean c\u00e1c b\u1ec1 m\u1eb7t ph\u1eb3ng c\u1ee7a ch\u00fang, l\u00e0m cho ch\u00fang \u0111\u00e1ng tin c\u1eady cho c\u1ea3 nhi\u1ec7m v\u1ee5 gi\u1eef v\u00e0 c\u1ea3m bi\u1ebfn.<\/p>\n<p>Nh\u1eefng nam ch\u00e2m n\u00e0y c\u00f3 th\u1ec3 l\u00e0 <strong>\u0111\u0129a r\u1eafn<\/strong> (kh\u00f4ng c\u00f3 l\u1ed7) ho\u1eb7c <strong>\u0111\u0129a c\u00f3 l\u1ed7<\/strong> (v\u1edbi l\u1ed7 khoan ho\u1eb7c m\u1edf l\u1ed7 m\u0169i \u0111\u1ec3 l\u1eafp \u0111\u1eb7t). Ch\u00fang c\u00f3 k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 m\u1ea1nh v\u00e0 ch\u1ea5t li\u1ec7u \u0111a d\u1ea1ng \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhu c\u1ea7u kh\u00e1c nhau.<\/p>\n<h3>Hi\u1ec3u Bi\u1ebft V\u1ec1 K\u00edch Th\u01b0\u1edbc V\u00e0 Thu\u1eadt Ng\u1eef<\/h3>\n<p>Khi ch\u1ecdn nam ch\u00e2m tr\u00f2n, m\u1ed9t v\u00e0i th\u00f4ng s\u1ed1 k\u00edch th\u01b0\u1edbc l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 bi\u1ebft:<\/p>\n<ul>\n<li><strong>\u0110\u01b0\u1eddng k\u00ednh<\/strong> \u2013 Kho\u1ea3ng c\u00e1ch qua m\u1eb7t tr\u00f2n c\u1ee7a nam ch\u00e2m.<\/li>\n<li><strong>\u0110\u1ed9 d\u00e0y<\/strong> \u2013 Chi\u1ec1u cao c\u1ee7a nam ch\u00e2m \u0111o t\u1eeb m\u1eb7t ph\u1eb3ng n\u00e0y sang m\u1eb7t ph\u1eb3ng kia.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc l\u1ed7 khoan<\/strong> \u2013 \u0110\u01b0\u1eddng k\u00ednh c\u1ee7a b\u1ea5t k\u1ef3 l\u1ed7 trung t\u00e2m n\u00e0o, n\u1ebfu c\u00f3.<\/li>\n<\/ul>\n<p>Chi ti\u1ebft k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c r\u1ea5t quan tr\u1ecdng v\u00ec \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m v\u00e0 kh\u1ea3 n\u0103ng ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o k\u00edch th\u01b0\u1edbc.<\/p>\n<h3>C\u00e1c V\u1eadt Li\u1ec7u Ph\u1ed5 Bi\u1ebfn \u0110\u01b0\u1ee3c S\u1eed D\u1ee5ng<\/h3>\n<p>Nam ch\u00e2m tr\u00f2n \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb c\u00e1c ch\u1ea5t li\u1ec7u t\u1eeb t\u00ednh kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh ri\u00eang:<\/p>\n<ul>\n<li><strong>Neodymium (NdFeB)<\/strong> \u2013 Lo\u1ea1i m\u1ea1nh nh\u1ea5t, l\u00fd t\u01b0\u1edfng cho kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t t\u1ed1i \u0111a trong k\u00edch th\u01b0\u1edbc nh\u1ecf.<\/li>\n<li><strong>G\u1ed1m (Ferrite)<\/strong> \u2013 Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, ch\u1ed1ng \u0103n m\u00f2n, ph\u00f9 h\u1ee3p cho s\u1eed d\u1ee5ng chung.<\/li>\n<li><strong>Alnico<\/strong> \u2013 Ch\u1ecbu nhi\u1ec7t cao, th\u01b0\u1eddng d\u00f9ng trong c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng.<\/li>\n<\/ul>\n<p>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh t\u1eeb, \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed.<\/p>\n<h2>Nam Ch\u00e2m Tr\u00f2n Kh\u00f4ng C\u00f3 L\u1ed7 V\u00e0 \u1ee8ng D\u1ee5ng<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/solid_round_magnets_features_and_uses_taP6T6fR9.webp\" alt=\"t\u00ednh n\u0103ng v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a nam ch\u00e2m tr\u00f2n r\u1eafn\" \/><\/p>\n<p>Nam ch\u00e2m tr\u00f2n kh\u00f4ng c\u00f3 l\u1ed7 l\u00e0 \u0111\u0129a t\u1eeb r\u1eafn ch\u1eafc l\u00e0m ho\u00e0n to\u00e0n b\u1eb1ng v\u1eadt li\u1ec7u t\u1eeb. V\u00ec kh\u00f4ng c\u00f3 trung t\u00e2m khoan, ch\u00fang gi\u1eef \u0111\u01b0\u1ee3c di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng t\u1eeb t\u1ed1i \u0111a, mang l\u1ea1i <strong>s\u1ee9c h\u00fat m\u1ea1nh h\u01a1n<\/strong> so v\u1edbi nam ch\u00e2m c\u00f3 l\u1ed7 c\u00f9ng k\u00edch th\u01b0\u1edbc.<\/p>\n<p><strong>L\u1ee3i \u00edch c\u1ee7a nam ch\u00e2m tr\u00f2n r\u1eafn:<\/strong><\/p>\n<ul>\n<li><strong>S\u1ee9c m\u1ea1nh t\u1eeb m\u1ea1nh h\u01a1n<\/strong> \u2013 t\u1ea5t c\u1ea3 v\u1eadt li\u1ec7u g\u00f3p ph\u1ea7n v\u00e0o tr\u01b0\u1eddng t\u1eeb.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n<\/strong> \u2013 kh\u00f4ng c\u1ea7n gia c\u00f4ng th\u00eam, l\u00e0m cho ch\u00fang \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp.<\/li>\n<li><strong>Chi ph\u00ed th\u1ea5p h\u01a1n<\/strong> \u2013 \u00edt c\u00f4ng \u0111o\u1ea1n gia c\u00f4ng h\u01a1n so v\u1edbi nam ch\u00e2m c\u00f3 l\u1ed7 khoan ho\u1eb7c l\u1ed7 m\u00f9.<\/li>\n<\/ul>\n<p><strong>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn tr\u00ean th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam:<\/strong><\/p>\n<ul>\n<li><strong>Gi\u1eef v\u00e0 c\u1ed1 \u0111\u1ecbnh<\/strong> \u2013 c\u1ed1 \u0111\u1ecbnh d\u1ee5ng c\u1ee5 kim lo\u1ea1i, tr\u01b0ng b\u00e0y ho\u1eb7c thi\u1ebft b\u1ecb.<\/li>\n<li><strong>\u0110\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/strong> \u2013 d\u00f9ng khi c\u1ea7n l\u1ef1c t\u1eeb m\u1ea1nh cao.<\/li>\n<li><strong>C\u1ea3m bi\u1ebfn v\u00e0 \u0111i\u1ec7n t\u1eed<\/strong> \u2013 cho h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed v\u00e0 \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li><strong>D\u1ef1 \u00e1n th\u1ee7 c\u00f4ng v\u00e0 s\u1eeda ch\u1eefa nh\u00e0 c\u1eeda<\/strong> \u2013 d\u1ec5 x\u1eed l\u00fd v\u00e0 ph\u1ea3i ch\u0103ng.<\/li>\n<\/ul>\n<p><strong>Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ea7n xem x\u00e9t:<\/strong><\/p>\n<ul>\n<li>Kh\u00f4ng c\u00f3 \u0111i\u1ec3m g\u1eafn c\u1ed1 \u0111\u1ecbnh t\u00edch h\u1ee3p \u2013 c\u1ea7n keo d\u00e1n, gi\u00e1 \u0111\u1ee1 ho\u1eb7c b\u1ed9 gi\u1eef t\u00f9y ch\u1ec9nh.<\/li>\n<li>C\u00f3 th\u1ec3 kh\u00f3 c\u0103n ch\u1ec9nh c\u01a1 kh\u00ed trong m\u1ed9t s\u1ed1 l\u1eafp r\u00e1p.<\/li>\n<li>C\u00f3 th\u1ec3 c\u1ea7n ph\u1ee7 l\u1edbp (nh\u01b0 nickel ho\u1eb7c epoxy) \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt.<\/li>\n<\/ul>\n<p><strong>Tham kh\u1ea3o nhanh c\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>V\u1eadt li\u1ec7u<\/th>\n<th>M\u1ee9c \u0111\u1ed9 m\u1ea1nh<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<th>Ch\u1ed1ng r\u1ec9 s\u00e9t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodymi<\/td>\n<td>R\u1ea5t cao<\/td>\n<td>Cao h\u01a1n<\/td>\n<td>Th\u1ea5p (c\u1ea7n ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7)<\/td>\n<\/tr>\n<tr>\n<td>G\u1ed1m\/Ferrite<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Th\u1ea5p<\/td>\n<td>T\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td>Trung b\u00ecnh-Cao<\/td>\n<td>Cao h\u01a1n<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nh\u1eefng nam ch\u00e2m \u0111\u0129a r\u1eafn n\u00e0y <strong>h\u00ecnh tr\u00f2n kh\u00f4ng c\u00f3 l\u1ed7<\/strong> ph\u00f9 h\u1ee3p khi b\u1ea1n c\u1ea7n <strong>\u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng t\u1ed1i \u0111a v\u00e0 h\u00ecnh d\u1ea1ng s\u1ea1ch s\u1ebd, \u0111\u01a1n gi\u1ea3n<\/strong>\u2014\u0111\u1eb7c bi\u1ec7t cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4ng y\u00eau c\u1ea7u c\u1ed1 \u0111\u1ecbnh c\u01a1 kh\u00ed.<\/p>\n<h2>Nam Ch\u00e2m Tr\u00f2n C\u00f3 L\u1ed7 V\u00e0 \u1ee8ng D\u1ee5ng<\/h2>\n<div id=\"attachment_1937\" style=\"width: 723px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1937\" class=\"size-full wp-image-1937\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole.jpg\" alt=\"nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7\" width=\"713\" height=\"488\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole-18x12.jpg 18w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole-200x137.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole-300x205.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole-400x274.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole-600x411.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round-magnets-with-hole-and-without-hole.jpg 713w\" sizes=\"(max-width: 713px) 100vw, 713px\" \/><p id=\"caption-attachment-1937\" class=\"wp-caption-text\">nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7<\/p><\/div>\n<p>Nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 \u1edf trung t\u00e2m\u2014d\u00f9 l\u00e0 <strong>l\u1ed7 th\u1eb3ng xuy\u00ean qua<\/strong> ho\u1eb7c <strong>l\u1ed7 m\u0169i khoan ch\u00ecm<\/strong>\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t. L\u1ed7 cho ph\u00e9p b\u1ea1n g\u1eafn ch\u00fang b\u1eb1ng v\u00edt, bu l\u00f4ng ho\u1eb7c rivet tr\u1ef1c ti\u1ebfp l\u00ean b\u1ec1 m\u1eb7t. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn y\u00eau th\u00edch trong c\u00e1c thi\u1ebft l\u1eadp n\u01a1i b\u1ea1n c\u1ea7n m\u1ed9t nam ch\u00e2m gi\u1eef ch\u1eb7t v\u1ecb tr\u00ed m\u00e0 kh\u00f4ng b\u1ecb d\u1ecbch chuy\u1ec3n.<\/p>\n<h3>L\u1ee3i \u00cdch<\/h3>\n<ul>\n<li><strong>L\u1eafp \u0111\u1eb7t d\u1ec5 d\u00e0ng<\/strong> \u2013 An to\u00e0n v\u1edbi c\u00e1c ph\u1ea7n c\u1ee9ng \u0111\u01a1n gi\u1ea3n nh\u01b0 v\u00edt ho\u1eb7c bu l\u00f4ng.<\/li>\n<li><strong>L\u1eafp \u0111\u1eb7t \u0111a n\u0103ng<\/strong> \u2013 Ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c b\u1ec1 m\u1eb7t g\u1ed7, kim lo\u1ea1i ho\u1eb7c nh\u1ef1a.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh c\u01a1 h\u1ecdc t\u1ed1t h\u01a1n<\/strong> \u2013 Gi\u1eef v\u1ecb tr\u00ed ngay c\u1ea3 d\u01b0\u1edbi rung \u0111\u1ed9ng.<\/li>\n<li><strong>T\u00edch h\u1ee3p g\u1ecdn g\u00e0ng<\/strong> \u2013 C\u00e1c l\u1ed7 ch\u1ea7n gi\u00fap \u0111\u1ea7u v\u00edt ph\u1eb3ng \u0111\u1ec3 ho\u00e0n thi\u1ec7n s\u1ea1ch s\u1ebd h\u01a1n.<\/li>\n<\/ul>\n<h3>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9ng c\u01a1<\/strong> \u2013 D\u00f9ng \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh v\u1ecb tr\u00ed c\u00e1c b\u1ed9 ph\u1eadn t\u1eeb t\u00ednh.<\/li>\n<li><strong>Ch\u1ed1t c\u1eeda v\u00e0 m\u00f3c kh\u00f3a<\/strong> \u2013 Gi\u1eef c\u00e1c t\u1ea5m ho\u1eb7c c\u1eeda \u0111\u00f3ng ch\u1eb7t an to\u00e0n.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed<\/strong> \u2013 D\u00f9ng cho c\u1ea3m bi\u1ebfn ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n g\u1eafn tr\u00ean.<\/li>\n<li><strong>D\u1ef1 \u00e1n DIY<\/strong> \u2013 Ho\u00e0n h\u1ea3o cho c\u00e1c c\u00f4ng vi\u1ec7c c\u1ea7n l\u1eafp \u0111\u1eb7t \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng c\u1ea7n keo d\u00e1n.<\/li>\n<\/ul>\n<h3>C\u00e1c Lo\u1ea1i L\u1ed7 V\u00e0 \u1ea2nh H\u01b0\u1edfng C\u1ee7a Ch\u00fang<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i l\u1ed7<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<th>\u1ea2nh h\u01b0\u1edfng c\u1ee7a l\u1ef1c t\u1eeb m\u1ea1nh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>L\u1ed7 xuy\u00ean<\/strong><\/td>\n<td>L\u1ed7 tr\u00f2n \u0111\u01a1n gi\u1ea3n; ph\u00f9 h\u1ee3p v\u1edbi v\u00edt ho\u1eb7c bu l\u00f4ng ti\u00eau chu\u1ea9n<\/td>\n<td>Gi\u1ea3m nh\u1eb9<\/td>\n<\/tr>\n<tr>\n<td><strong>\u00c2m<\/strong><\/td>\n<td>L\u1ed7 nghi\u00eang \u0111\u1ec3 \u0111\u1ea7u v\u00edt n\u1eb1m ph\u1eb3ng v\u1edbi b\u1ec1 m\u1eb7t<\/td>\n<td>Gi\u1ea3m nh\u1eb9 h\u01a1n m\u1ed9t ch\u00fat do kho\u00e9t l\u1edbn h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V\u00ec m\u1ed9t ph\u1ea7n v\u1eadt li\u1ec7u t\u1eeb t\u00ednh b\u1ecb lo\u1ea1i b\u1ecf \u0111\u1ec3 t\u1ea1o l\u1ed7, \u0111\u1ed9 b\u1ec1n th\u01b0\u1eddng th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi nam ch\u00e2m \u0111\u0129a r\u1eafn. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng, s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i n\u00e0y \u0111\u00e1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u01b0\u01a1ng \u00e1n g\u1eafn c\u1ed1 \u0111\u1ecbnh v\u00e0 l\u00e2u d\u00e0i.<\/p>\n<h2>S\u1ef1 Kh\u00e1c Bi\u1ec7t Ch\u00ednh Gi\u1eefa Nam Ch\u00e2m Tr\u00f2n C\u00f3 L\u1ed7 V\u00e0 Kh\u00f4ng C\u00f3 L\u1ed7<\/h2>\n<p>Khi ch\u1ecdn gi\u1eefa nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7, m\u1ed9t v\u00e0i \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i n\u1ed5i b\u1eadt. Nh\u1eefng \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m, c\u00e1ch b\u1ea1n l\u1eafp \u0111\u1eb7t n\u00f3, v\u00e0 th\u1eadm ch\u00ed l\u00e0 chi ph\u00ed. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch nhanh.<\/p>\n<h3>\u0110\u1ed9 M\u1ea1nh T\u1eeb V\u00e0 \u1ea2nh H\u01b0\u1edfng C\u1ee7a Tr\u01b0\u1eddng T\u1eeb<\/h3>\n<ul>\n<li><strong>Kh\u00f4ng c\u00f3 l\u1ed7:<\/strong> Nam ch\u00e2m tr\u00f2n r\u1eafn gi\u1eef to\u00e0n b\u1ed9 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t, do \u0111\u00f3 th\u01b0\u1eddng t\u1ea1o ra l\u1ef1c h\u00fat m\u1ea1nh h\u01a1n.<\/li>\n<li><strong>C\u00f3 l\u1ed7:<\/strong> L\u1ed7 lo\u1ea1i b\u1ecf m\u1ed9t ph\u1ea7n v\u1eadt li\u1ec7u t\u1eeb t\u00ednh, do \u0111\u00f3 l\u1ef1c h\u00fat gi\u1ea3m nh\u1eb9. M\u1ee9c \u0111\u1ed9 gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc l\u1ed7 v\u00e0 v\u1eadt li\u1ec7u nam ch\u00e2m.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i<\/th>\n<th>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/th>\n<th>L\u00fd do<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kh\u00f4ng c\u00f3 l\u1ed7<\/td>\n<td>M\u1ea1nh h\u01a1n<\/td>\n<td>Di\u1ec7n t\u00edch ti\u1ebfp x\u00fac \u0111\u1ea7y \u0111\u1ee7, kh\u00f4ng lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 l\u1ed7<\/td>\n<td>\u00cdt h\u01a1n m\u1ed9t ch\u00fat<\/td>\n<td>V\u1eadt li\u1ec7u b\u1ecb lo\u1ea1i b\u1ecf \u0111\u1ec3 t\u1ea1o l\u1ed7 g\u1eafn thay \u0111\u1ed5i \u0111\u01b0\u1eddng d\u1eabn flux<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>L\u1eafp \u0110\u1eb7t V\u00e0 G\u1eafn Ch\u1eb7t<\/h3>\n<ul>\n<li><strong>Kh\u00f4ng c\u00f3 l\u1ed7:<\/strong> Y\u00eau c\u1ea7u keo, gi\u00e1 \u0111\u1ee1 kim lo\u1ea1i ho\u1eb7c gi\u00e1 \u0111\u1ee1 t\u1eeb t\u00ednh \u0111\u1ec3 g\u1eafn.<\/li>\n<li><strong>C\u00f3 l\u1ed7:<\/strong> Thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp nhanh b\u1eb1ng v\u00edt, bu l\u00f4ng ho\u1eb7c \u0111inh t\u00e1n. C\u00e1c l\u1ed7 \u00e2m gi\u00fap m\u1eb7t ph\u1eb3ng n\u1eb1m ph\u1eb3ng \u0111\u1ec3 ho\u00e0n thi\u1ec7n s\u1ea1ch s\u1ebd.<\/li>\n<\/ul>\n<h3>Tr\u1ecdng L\u01b0\u1ee3ng V\u00e0 Gi\u00e1 C\u1ea3<\/h3>\n<ul>\n<li><strong>Kh\u00f4ng c\u00f3 l\u1ed7:<\/strong> Nhi\u1ec1u v\u1eadt li\u1ec7u h\u01a1n c\u00f3 ngh\u0129a l\u00e0 n\u1eb7ng h\u01a1n m\u1ed9t ch\u00fat. Th\u01b0\u1eddng r\u1ebb h\u01a1n \u0111\u1ec3 s\u1ea3n xu\u1ea5t v\u00ec kh\u00f4ng c\u1ea7n gia c\u00f4ng th\u00eam.<\/li>\n<li><strong>C\u00f3 l\u1ed7:<\/strong> Nh\u1eb9 h\u01a1n do \u00edt v\u1eadt li\u1ec7u h\u01a1n. C\u00f3 th\u1ec3 \u0111\u1eaft h\u01a1n do qu\u00e1 tr\u00ecnh khoan ho\u1eb7c t\u1ea1o l\u1ed7 \u00e2m.<\/li>\n<\/ul>\n<h3>Ph\u00f9 H\u1ee3p Nh\u1ea5t V\u1edbi Ng\u00e0nh C\u00f4ng Nghi\u1ec7p Ho\u1eb7c M\u00f4i Tr\u01b0\u1eddng N\u00e0o<\/h3>\n<ul>\n<li><strong>Kh\u00f4ng c\u00f3 l\u1ed7:<\/strong>\n<ul>\n<li>\u1ee8ng d\u1ee5ng gi\u1eef ch\u1eb7t m\u1ea1nh (n\u00e2ng c\u00f4ng nghi\u1ec7p, k\u1eb9p t\u1eeb t\u00ednh)<\/li>\n<li>S\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng kh\u00f4ng c\u1ea7n v\u00edt c\u01a1 kh\u00ed<\/li>\n<li>H\u1ec7 th\u1ed1ng \u0111\u1ed9ng c\u01a1 v\u00e0 c\u1ea3m bi\u1ebfn n\u01a1i \u0111\u1ed9 b\u1ec1n l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t<\/li>\n<\/ul>\n<\/li>\n<li><strong>C\u00f3 l\u1ed7:<\/strong>\n<ul>\n<li>L\u1eafp \u0111\u1eb7t c\u1ea7n c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn b\u1eb1ng c\u01a1 kh\u00ed (ch\u1ed1t c\u1eeda, \u0111\u1ebf g\u1eafn)<\/li>\n<li>H\u1ed9p \u0111i\u1ec7n t\u1eed ho\u1eb7c gi\u00e1 \u0111\u1ee1 \u0111\u1ed9ng c\u01a1<\/li>\n<li>S\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi n\u01a1i v\u00edt gi\u00fap ng\u0103n tr\u01b0\u1ee3t t\u1eeb t\u00ednh<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e1ch Ch\u1ecdn Nam Ch\u00e2m Tr\u00f2n Ph\u00f9 H\u1ee3p Cho D\u1ef1 \u00c1n C\u1ee7a B\u1ea1n<\/h2>\n<p>Khi ch\u1ecdn gi\u1eefa <strong>nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7<\/strong> or <strong>nam ch\u00e2m tr\u00f2n kh\u00f4ng c\u00f3 l\u1ed7<\/strong>, b\u1ea1n s\u1ebd mu\u1ed1n t\u1eadp trung v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 th\u1ef1c t\u1ebf. L\u00e0m \u0111\u00fang l\u1ea7n \u0111\u1ea7u ti\u1ebft ki\u1ec7m th\u1eddi gian, chi ph\u00ed v\u00e0 phi\u1ec1n ph\u1ee9c.<\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n xem x\u00e9t<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/strong> \u2013 Neodymium cung c\u1ea5p l\u1ef1c h\u00fat m\u1ea1nh nh\u1ea5t; g\u1ed1m s\u1ee9 th\u00ec ti\u1ebft ki\u1ec7m h\u01a1n nh\u01b0ng y\u1ebfu h\u01a1n.<\/li>\n<li><strong>Nhu c\u1ea7u g\u1eafn k\u1ebft<\/strong> \u2013 Ch\u1ecdn nam ch\u00e2m c\u00f3 l\u1ed7 n\u1ebfu b\u1ea1n c\u1ea7n b\u1eaft v\u00edt ho\u1eb7c bu l\u00f4ng v\u00e0o; \u0111\u0129a r\u1eafn ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng treo t\u1ef1 do ho\u1eb7c ti\u1ebfp x\u00fac t\u1eeb t\u00ednh.<\/li>\n<li><strong>M\u00f4i tr\u01b0\u1eddng<\/strong> \u2013 \u0110\u1ed1i v\u1edbi khu v\u1ef1c ngo\u00e0i tr\u1eddi ho\u1eb7c \u1ea9m \u01b0\u1edbt, ch\u1ecdn v\u1eadt li\u1ec7u nh\u01b0 neodymium ph\u1ee7 ho\u1eb7c l\u1eafp r\u00e1p c\u00f3 l\u1edbp th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec3 tr\u00e1nh r\u1ec9 s\u00e9t.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong> \u2013 L\u1edbp ph\u1ee7 nickel, epoxy ho\u1eb7c cao su k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 ph\u00f9 h\u1ee3p<\/strong> \u2013 Ph\u00f9 h\u1ee3p <strong>\u0111\u01b0\u1eddng k\u00ednh<\/strong>, <strong>\u0111\u1ed9 d\u00e0y<\/strong>, v\u00e0 <strong>k\u00edch th\u01b0\u1edbc l\u1ed7<\/strong> (n\u1ebfu \u00e1p d\u1ee5ng) cho kh\u00f4ng gian c\u1ee7a b\u1ea1n v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef l\u1ef1c c\u1ea7n thi\u1ebft.<\/li>\n<li><strong>Ng\u00e2n s\u00e1ch<\/strong> \u2013 Nam ch\u00e2m r\u1eafn th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u1ea5p h\u01a1n; nam ch\u00e2m c\u00f3 l\u1ed7 c\u00f3 th\u1ec3 cao h\u01a1n m\u1ed9t ch\u00fat do gia c\u00f4ng th\u00eam.<\/li>\n<\/ul>\n<h3>Khuy\u1ebfn Ngh\u1ecb \u1ee8ng D\u1ee5ng<\/h3>\n<table>\n<thead>\n<tr>\n<th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>Ghi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Gi\u00e1o d\u1ee5c<\/strong><\/td>\n<td>G\u1ed1m ho\u1eb7c neodymium nh\u1ecf kh\u00f4ng c\u00f3 l\u1ed7<\/td>\n<td>An to\u00e0n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed cho c\u00e1c bu\u1ed5i tr\u00ecnh di\u1ec5n trong l\u1edbp h\u1ecdc<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u00f4ng nghi\u1ec7p<\/strong><\/td>\n<td>Neodymium l\u1edbn c\u00f3 l\u1ed7 ho\u1eb7c khoan l\u1ed7 m\u0169i<\/td>\n<td>D\u1ec5 d\u00e0ng g\u1eafn l\u00ean kim lo\u1ea1i ho\u1eb7c m\u00e1y m\u00f3c<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1eed d\u1ee5ng t\u1ea1i nh\u00e0<\/strong><\/td>\n<td>K\u1ebft h\u1ee3p c\u1ea3 hai lo\u1ea1i<\/td>\n<td>R\u1eafn cho t\u1ee7 l\u1ea1nh\/b\u1ea3ng, c\u00f3 l\u1ed7 cho c\u00e1c thi\u1ebft b\u1ecb v\u00e0 gi\u00e1 \u0111\u1ee1 t\u1ef1 ch\u1ebf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>T\u1ea1i Sao \u0110\u1ed9 Tin C\u1eady C\u1ee7a Nh\u00e0 Cung C\u1ea5p L\u1ea1i Quan Tr\u1ecdng<\/h3>\n<p>Nam ch\u00e2m c\u00f3 th\u1ec3 tr\u00f4ng gi\u1ed1ng nhau, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng kh\u00e1c nhau nhi\u1ec1u gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p. Ch\u00fa \u00fd \u0111\u1ebfn:<\/p>\n<ul>\n<li><strong>Ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ed3ng \u0111\u1ec1u<\/strong> ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 m\u1ea1nh \u0111\u00e3 qu\u1ea3ng c\u00e1o<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c<\/strong> \u0111\u1ec3 ph\u00f9 h\u1ee3p \u0111\u00fang<\/li>\n<li><strong>L\u1edbp ph\u1ee7 b\u1ec1n<\/strong> d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf<\/li>\n<li><strong>Ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/strong> (ISO, RoHS) \u0111\u1ec3 s\u1eed d\u1ee5ng an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7<\/li>\n<\/ul>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n d\u00e0i h\u1ea1n, ngu\u1ed3n cung c\u1ea5p t\u1eeb <strong>nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u t\u1eeb t\u00ednh \u0111\u00e1ng tin c\u1eady<\/strong> \u0111\u1ea3m b\u1ea3o b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c k\u00e9o ph\u00f9 h\u1ee3p, \u0111\u1ed9 b\u1ec1n v\u00e0 v\u1eeba v\u1eb7n m\u1ed7i l\u1ea7n.<\/p>\n<h2>T\u1ea1i Sao Ch\u1ecdn NBAEM Cho Nhu C\u1ea7u V\u1eadt Li\u1ec7u T\u1eeb T\u1eeb C\u1ee7a B\u1ea1n<\/h2>\n<p>NBAEM c\u00f3 nhi\u1ec1u n\u0103m kinh nghi\u1ec7m cung c\u1ea5p nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p, nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 doanh nghi\u1ec7p nh\u1ecf tr\u00ean to\u00e0n qu\u1ed1c. Ch\u00fang t\u00f4i hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t m\u00e0 m\u1ed9t nam ch\u00e2m ph\u00f9 h\u1ee3p mang l\u1ea1i, d\u00f9 b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng thi\u1ebft b\u1ecb, thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m hay l\u00e0m d\u1ef1 \u00e1n DIY.<\/p>\n<h3>D\u1ea3i S\u1ea3n Ph\u1ea9m \u0110a D\u1ea1ng<\/h3>\n<p>Ch\u00fang t\u00f4i cung c\u1ea5p <strong>nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7<\/strong> v\u00e0 <strong>nam ch\u00e2m tr\u00f2n kh\u00f4ng c\u00f3 l\u1ed7<\/strong> v\u1edbi nhi\u1ec1u k\u00edch c\u1ee1, c\u1ea5p \u0111\u1ed9 v\u00e0 ch\u1ea5t li\u1ec7u kh\u00e1c nhau, bao g\u1ed3m Neodymium, G\u1ed1m, v\u00e0 Alnico. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u1ea3 c\u00e1c m\u1eb7t h\u00e0ng ti\u00eau chu\u1ea9n v\u00e0 t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n.<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i S\u1ea3n Ph\u1ea9m<\/th>\n<th>K\u00edch Th\u01b0\u1edbc C\u00f3 S\u1eb5n<\/th>\n<th>L\u1ef1a Ch\u1ecdn Ch\u1ea5t Li\u1ec7u<\/th>\n<th>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m tr\u00f2n Kh\u00f4ng l\u1ed7<\/td>\n<td>\u0110\u01b0\u1eddng k\u00ednh t\u1eeb 5mm \u0111\u1ebfn 100mm<\/td>\n<td>Neodymium, G\u1ed1m, Alnico<\/td>\n<td>Ch\u1ed1ng gi\u1eef, c\u1ed1 \u0111\u1ecbnh, \u0111\u1ed9ng c\u01a1, th\u1ee7 c\u00f4ng m\u1ef9 ngh\u1ec7<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m tr\u00f2n C\u00f3 l\u1ed7<\/td>\n<td>\u0110\u01b0\u1eddng k\u00ednh t\u1eeb 5mm \u0111\u1ebfn 80mm<\/td>\n<td>Neodymium, G\u1ed1m<\/td>\n<td>L\u1eafp \u0111\u1eb7t b\u1eb1ng v\u00edt, c\u1ea3m bi\u1ebfn, ch\u1ed1t c\u1eeda<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ch\u1ea5t L\u01b0\u1ee3ng V\u00e0 T\u00f9y Ch\u1ec9nh<\/h3>\n<ul>\n<li>S\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c v\u1edbi \u0111\u1ed9 dung sai ch\u1eb7t ch\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh<\/li>\n<li>C\u00f3 s\u1eb5n c\u00e1c k\u00edch th\u01b0\u1edbc l\u1ed7, h\u00ecnh d\u1ea1ng v\u00e0 l\u1edbp ph\u1ee7 t\u00f9y ch\u1ec9nh<\/li>\n<li>C\u00e1c lo\u1ea1i nam ch\u00e2m m\u1ea1nh ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao<\/li>\n<\/ul>\n<h3>Gi\u00e1 C\u1ea3 C\u1ea1nh Tranh<\/h3>\n<p>L\u00e0 m\u1ed9t <strong>nh\u00e0 cung c\u1ea5p tr\u1ef1c ti\u1ebfp Trung Qu\u1ed1c<\/strong>, NBAEM cung c\u1ea5p gi\u00e1 c\u1ea3 h\u1ee3p l\u00fd m\u00e0 kh\u00f4ng b\u1ecf qua ch\u1ea5t l\u01b0\u1ee3ng, gi\u00fap ng\u01b0\u1eddi mua t\u1ea1i Vi\u1ec7t Nam d\u1ec5 d\u00e0ng h\u01a1n trong vi\u1ec7c l\u1ea5y c\u00e1c nam ch\u00e2m cao c\u1ea5p v\u1edbi chi ph\u00ed h\u1ee3p l\u00fd.<\/p>\n<h3>D\u1ecbch V\u1ee5 Kh\u00e1ch H\u00e0ng V\u00e0 H\u1ed7 Tr\u1ee3<\/h3>\n<ul>\n<li>Ph\u1ea3n h\u1ed3i nhanh ch\u00f3ng c\u00e1c y\u00eau c\u1ea7u<\/li>\n<li>H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 c\u00e1ch ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t nam ch\u00e2m<\/li>\n<li>D\u1ecbch v\u1ee5 h\u1eadu m\u00e3i \u0111\u00e1ng tin c\u1eady cho c\u00e1c \u0111\u01a1n h\u00e0ng l\u1eb7p l\u1ea1i v\u00e0 thay th\u1ebf<\/li>\n<\/ul>\n<p>V\u1edbi NBAEM, b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c <strong>v\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/strong> nhu c\u1ea7u c\u1ee7a b\u1ea1n, \u0111\u00fang k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 m\u1ea1nh, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi nh\u00e0 cung c\u1ea5p hi\u1ec3u r\u00f5 c\u1ea3 nhu c\u1ea7u c\u00f4ng nghi\u1ec7p v\u00e0 d\u1ef1 \u00e1n c\u00e1 nh\u00e2n.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>K\u00edch th\u01b0\u1edbc l\u1ed7 c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh kh\u00f4ng<\/h3>\n<p>C\u00f3. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t, bao g\u1ed3m ch\u00fang t\u00f4i, c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t nam ch\u00e2m tr\u00f2n v\u1edbi k\u00edch th\u01b0\u1edbc l\u1ed7 t\u00f9y ch\u1ec9nh\u2014d\u00f9 l\u00e0 l\u1ed7 xuy\u00ean \u0111\u01a1n gi\u1ea3n hay ki\u1ec3u m\u00e0i m\u00f2n cho v\u00edt \u0111\u1ea7u b\u1eb1ng. Ch\u1ec9 c\u1ea7n nh\u1edb r\u1eb1ng vi\u1ec7c thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc l\u1ed7 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed.<\/p>\n<h3>L\u1ed7 gi\u1ea3m s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh bao nhi\u00eau<\/h3>\n<p>M\u1ed9t l\u1ed7 lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m nh\u1eb9 l\u1ef1c k\u00e9o so v\u1edbi nam ch\u00e2m r\u1eafn c\u00f9ng k\u00edch th\u01b0\u1edbc. Hi\u1ec7u \u1ee9ng ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u01b0\u1eddng k\u00ednh l\u1ed7\u2014l\u1ed7 nh\u1ecf \u00edt \u1ea3nh h\u01b0\u1edfng h\u01a1n, trong khi l\u1ed7 l\u1edbn c\u00f3 th\u1ec3 gi\u1ea3m r\u00f5 r\u1ec7t \u0111\u1ed9 b\u1ec1n.<\/p>\n<h3>Nam ch\u00e2m c\u00f3 l\u1ed7 \u0111\u1eaft h\u01a1n kh\u00f4ng<\/h3>\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, c\u00f3. Gia c\u00f4ng ho\u1eb7c \u0111\u00fac th\u00eam \u0111\u1ec3 t\u1ea1o l\u1ed7 l\u00e0m t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t. S\u1ef1 ch\u00eanh l\u1ec7ch gi\u00e1 th\u01b0\u1eddng nh\u1ecf \u0111\u1ed1i v\u1edbi k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n nh\u01b0ng cao h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh ho\u1eb7c lo\u1ea1i \u0111\u1ea5t hi\u1ebfm m\u1ea1nh nh\u01b0 neodymium.<\/p>\n<h3>Ph\u1ea7n c\u1ee9ng l\u1eafp \u0111\u1eb7t n\u00e0o \u0111\u01b0\u1ee3c khuy\u00ean d\u00f9ng<\/h3>\n<p>\u0110\u1ed1i v\u1edbi <strong>l\u1ed7 xuy\u00ean<\/strong>, s\u1eed d\u1ee5ng bu l\u00f4ng, v\u00edt ho\u1eb7c thanh ren ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng k\u00ednh trong. \u0110\u1ed1i v\u1edbi <strong>l\u1ed7 m\u00e0i m\u00f2n<\/strong>, v\u00edt \u0111\u1ea7u b\u1eb1ng cung c\u1ea5p l\u1eafp \u0111\u1eb7t ph\u1eb3ng. Ph\u1ee5 ki\u1ec7n th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 t\u1ed1t nh\u1ea5t n\u1ebfu b\u1ea1n c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n<p><strong>C\u00e1ch l\u1eafp \u0111\u1eb7t nam ch\u00e2m tr\u00f2n an to\u00e0n<\/strong><\/p>\n<ul>\n<li>L\u00e0m s\u1ea1ch c\u1ea3 nam ch\u00e2m v\u00e0 b\u1ec1 m\u1eb7t l\u1eafp \u0111\u1eb7t.<\/li>\n<li>S\u1eed d\u1ee5ng bu l\u00f4ng kh\u00f4ng t\u1eeb \u0111\u1ec3 tr\u00e1nh g\u00e2y nhi\u1ec5u.<\/li>\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c khu v\u1ef1c c\u00f3 rung l\u1eafc l\u1edbn, th\u00eam \u0111\u1ec7m ho\u1eb7c \u0111ai \u1ed1c kh\u00f3a.<\/li>\n<li>\u00c1p d\u1ee5ng keo epoxy ho\u1eb7c keo d\u00e1n kh\u00f3a ren \u0111\u1ec3 gi\u1eef ch\u1eafc h\u01a1n.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o nam ch\u00e2m kh\u00f4ng b\u1ecb si\u1ebft qu\u00e1 ch\u1eb7t \u0111\u1ec3 tr\u00e1nh n\u1ee9t, \u0111\u1eb7c bi\u1ec7t v\u1edbi nam ch\u00e2m neodymium d\u1ec5 v\u1ee1.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nam ch\u00e2m tr\u00f2n c\u00f3 l\u1ed7 v\u00e0 kh\u00f4ng l\u1ed7, c\u00f4ng d\u1ee5ng, \u0111\u1ed9 m\u1ea1nh v\u00e0 c\u00e1ch ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n<\/p>","protected":false},"author":1,"featured_media":1949,"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-1950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/08\/round_magnets_with_hole_and_without_hole_qlIdHWqUM.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1950","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=1950"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1950\/revisions"}],"predecessor-version":[{"id":1971,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1950\/revisions\/1971"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1949"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}