{"id":3304,"date":"2025-11-01T03:36:57","date_gmt":"2025-11-01T03:36:57","guid":{"rendered":"https:\/\/nbaem.com\/?p=3304"},"modified":"2025-11-01T15:16:33","modified_gmt":"2025-11-01T15:16:33","slug":"what-are-welding-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-are-welding-magnets\/","title":{"rendered":"C\u00e1c lo\u1ea1i nam ch\u00e2m h\u00e0n"},"content":{"rendered":"<h2>Ch\u00ednh x\u00e1c th\u00ec c\u00e1c nam ch\u00e2m h\u00e0n l\u00e0 g\u00ec<\/h2>\n<p>Nam ch\u00e2m h\u00e0n l\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 t\u1eeb \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1eef ch\u1eb7t c\u00e1c m\u1ea3nh kim lo\u1ea1i \u1edf c\u00e1c g\u00f3c \u0111\u1ed9 c\u1ee5 th\u1ec3 trong qu\u00e1 tr\u00ecnh h\u00e0n v\u00e0 gia c\u00f4ng kim lo\u1ea1i. Ch\u00fang cho ph\u00e9p l\u00e0m vi\u1ec7c kh\u00f4ng c\u1ea7n tay b\u1eb1ng c\u00e1ch \u0111\u1ecbnh v\u1ecb ch\u1eafc ch\u1eafn c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i s\u1eaft, gi\u00fap c\u00e1c nhi\u1ec7m v\u1ee5 nh\u01b0 \u0111\u1ecbnh v\u1ecb h\u00e0n 90 \u0111\u1ed9 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng v\u00e0 ch\u00ednh x\u00e1c h\u01a1n. C\u00e1c lo\u1ea1i nam ch\u00e2m n\u00e0y c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m nam ch\u00e2m h\u00e0n m\u0169i t\u00ean, k\u1eb9p vu\u00f4ng, c\u00e1c m\u00f4 h\u00ecnh \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c v\u00e0 k\u1eb9p \u0111\u1ea5t t\u1eeb, m\u1ed7i lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhu c\u1ea7u h\u00e0n kh\u00e1c nhau.<\/p>\n<p>Trong l\u1ecbch s\u1eed, nam ch\u00e2m h\u00e0n \u0111\u00e3 ti\u1ebfn h\u00f3a t\u1eeb c\u00e1c kh\u1ed1i nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01a1n gi\u1ea3n th\u00e0nh c\u00e1c lo\u1ea1i nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tinh vi, nh\u01b0 nam ch\u00e2m h\u00e0n neodymium, mang l\u1ea1i l\u1ef1c gi\u1eef ch\u1eb7t m\u1ea1nh h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n. S\u1ef1 ti\u1ebfn h\u00f3a n\u00e0y \u0111\u00e3 bi\u1ebfn nam ch\u00e2m h\u00e0n th\u00e0nh c\u00e1c d\u1ee5ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c d\u1ef1 \u00e1n DIY t\u1ea1i gara v\u00e0 m\u00f4i tr\u01b0\u1eddng gia c\u00f4ng kim lo\u1ea1i chuy\u00ean nghi\u1ec7p.<\/p>\n<p>T\u1ea7m quan tr\u1ecdng c\u1ee7a nam ch\u00e2m h\u00e0n trong gia c\u00f4ng kim lo\u1ea1i kh\u00f4ng th\u1ec3 b\u1ecb xem nh\u1eb9. Ch\u00fang n\u00e2ng cao hi\u1ec7u qu\u1ea3, cung c\u1ea5p s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 ng\u0103n ng\u1eeba l\u1ed7i trong qu\u00e1 tr\u00ecnh h\u00e0n, gi\u00fap th\u1ee3 h\u00e0n duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng c\u1ea7n k\u1eb9p ho\u1eb7c jig ph\u1ee5. T\u1ea1i NBAEM, ch\u00fang t\u00f4i mang \u0111\u1ebfn ki\u1ebfn th\u1ee9c s\u00e2u r\u1ed9ng v\u1ec1 v\u1eadt li\u1ec7u t\u1eeb, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb cao c\u1ea5p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ec1n b\u1ec9 v\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0n \u0111\u00f2i h\u1ecfi cao. S\u1ef1 t\u1eadp trung v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c nam ch\u00e2m h\u00e0n c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng c\u1ea3 ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p v\u00e0 nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a th\u1ee3 kim lo\u1ea1i.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 v\u1eadt li\u1ec7u t\u1eeb \u0111\u1eb1ng sau c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i, h\u00e3y kh\u00e1m ph\u00e1 c\u00e1c hi\u1ec3u bi\u1ebft chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Ferrite_(magnet)\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>nam ch\u00e2m ferrite<\/strong><\/span><\/a><span style=\"color: #ff6600;\"><strong>.<\/strong><\/span><\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m h\u00e0n<\/h2>\n<p>Nam ch\u00e2m h\u00e0n s\u1eed d\u1ee5ng l\u1ef1c t\u1eeb \u0111\u1ec3 gi\u1eef c\u00e1c m\u1ea3nh kim lo\u1ea1i \u1ed5n \u0111\u1ecbnh, gi\u00fap b\u1ea1n ki\u1ec3m so\u00e1t kh\u00f4ng c\u1ea7n tay \u0111\u1ec3 h\u00e0n ch\u00ednh x\u00e1c. Ch\u00fang d\u1ef1a v\u00e0o c\u00e1c tr\u01b0\u1eddng t\u1eeb m\u1ea1nh\u2014th\u01b0\u1eddng t\u1eeb nam ch\u00e2m neodymium ho\u1eb7c \u0111\u1ea5t hi\u1ebfm\u2014\u0111\u1ec3 gi\u1eef c\u00e1c kim lo\u1ea1i s\u1eaft c\u1ed1 \u0111\u1ecbnh t\u1ea1i ch\u1ed7, \u0111\u1eb7c bi\u1ec7t \u1edf c\u00e1c g\u00f3c ph\u1ed5 bi\u1ebfn nh\u01b0 45, 90 ho\u1eb7c 135 \u0111\u1ed9. S\u1ef1 \u1ed5n \u0111\u1ecbnh g\u00f3c n\u00e0y l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 c\u00f3 c\u00e1c m\u1ed1i h\u00e0n li\u00ean t\u1ee5c, s\u1ea1ch s\u1ebd.<\/p>\n<h3>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh c\u1ea7n bi\u1ebft<\/h3>\n<ul>\n<li><strong>L\u1ef1c gi\u1eef:<\/strong> \u0110\u01b0\u1ee3c \u0111o b\u1eb1ng pound, \u0111i\u1ec1u n\u00e0y cho bi\u1ebft m\u1ee9c \u0111\u1ed9 m\u1ea1nh m\u1ebd c\u1ee7a nam ch\u00e2m khi gi\u1eef c\u00e1c b\u1ec1 m\u1eb7t kim lo\u1ea1i. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c c\u00f4ng vi\u1ec7c h\u00e0n, h\u00e3y ch\u1ecdn c\u00e1c nam ch\u00e2m c\u00f3 l\u1ef1c gi\u1eef t\u1eeb 20 \u0111\u1ebfn 50 pound tr\u1edf l\u00ean.<\/li>\n<li><strong>Ch\u1ecbu nhi\u1ec7t:<\/strong> H\u00e0n th\u01b0\u1eddng sinh nhi\u1ec7t cao, v\u00ec v\u1eady nam ch\u00e2m c\u1ea7n ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t m\u00e0 kh\u00f4ng m\u1ea5t kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t. C\u00e1c lo\u1ea1i nam ch\u00e2m h\u00e0n th\u00f4ng th\u01b0\u1eddng ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t l\u00ean \u0111\u1ebfn kho\u1ea3ng 80\u00b0C (176\u00b0F), nh\u01b0ng c\u00e1c lo\u1ea1i cao c\u1ea5p c\u00f3 th\u1ec3 ch\u1ecbu nhi\u1ec7t cao h\u01a1n.<\/li>\n<li><strong>K\u00edch Th\u01b0\u1edbc v\u00e0 H\u00ecnh D\u00e1ng:<\/strong> C\u00e1c h\u00ecnh d\u1ea1ng kh\u00e1c nhau ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhi\u1ec7m v\u1ee5 kh\u00e1c nhau\u2014nam ch\u00e2m m\u0169i t\u00ean cho c\u00e1c g\u00f3c, nam ch\u00e2m vu\u00f4ng cho c\u00e1c b\u1ec1 m\u1eb7t ph\u1eb3ng, ho\u1eb7c k\u1eb9p \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c g\u00f3c t\u00f9y ch\u1ec9nh.<\/li>\n<\/ul>\n<h3>C\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u1edbi nam ch\u00e2m h\u00e0n<\/h3>\n<ul>\n<li><strong>L\u00e0m l\u1ec7ch h\u1ed3 quang:<\/strong> M\u1ed9t tr\u01b0\u1eddng t\u1eeb c\u00f3 th\u1ec3 g\u00e2y ra h\u1ed3 quang ho\u1eb7c m\u1ed1i h\u00e0n kh\u00f4ng \u0111\u1ec1u, g\u1ecdi l\u00e0 l\u1ec7ch h\u1ed3 quang. Vi\u1ec7c ch\u1ecdn nam ch\u00e2m c\u00f3 \u0111\u1ed9 m\u1ea1nh v\u00e0 v\u1ecb tr\u00ed ph\u00f9 h\u1ee3p gi\u00fap gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/li>\n<li><strong>H\u01b0 h\u1ecfng do nhi\u1ec7t:<\/strong> Ti\u1ebfp x\u00fac qu\u00e1 nhi\u1ec1u nhi\u1ec7t c\u00f3 th\u1ec3 l\u00e0m y\u1ebfu ho\u1eb7c l\u00e0m h\u1ecfng nam ch\u00e2m, v\u00ec v\u1eady n\u00ean th\u00e1o nam ch\u00e2m ra trong c\u00e1c qu\u00e1 tr\u00ecnh h\u00e0n d\u00e0i ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i ch\u1ecbu nhi\u1ec7t cao.<\/li>\n<\/ul>\n<h3>So s\u00e1nh c\u00e1c lo\u1ea1i nam ch\u00e2m<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>L\u1ef1c gi\u1eef<\/th>\n<th>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/th>\n<th>C\u00e1c Tr\u01b0\u1eddng H\u1ee3p S\u1eed D\u1ee5ng T\u1ed1t Nh\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam Ch\u00e2m H\u00e0n \u0110i\u1ec3m H\u01b0\u1edbng M\u0169i T\u00ean<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>L\u00ean \u0111\u1ebfn 176\u00b0F<\/td>\n<td>H\u00e0n 45\u00b0, 90\u00b0, 135\u00b0<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 \u0110\u1ee1 H\u00ecnh Vu\u00f4ng<\/td>\n<td>Cao<\/td>\n<td>L\u00ean \u0111\u1ebfn 176\u00b0F<\/td>\n<td>B\u1ec1 M\u1eb7t Ph\u1eb3ng L\u1edbn H\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Nam Ch\u00e2m \u0110i\u1ec1u Ch\u1ec9nh<\/td>\n<td>Bi\u1ebfn \u0111\u1ed5i<\/td>\n<td>L\u00ean \u0111\u1ebfn 176\u00b0F<\/td>\n<td>\u0110\u1ecbnh V\u1ecb G\u00f3c T\u00f9y Ch\u1ec9nh<\/td>\n<\/tr>\n<tr>\n<td>Neodymium Cao C\u1ea5p<\/td>\n<td>R\u1ea5t cao<\/td>\n<td>L\u00ean \u0111\u1ebfn 302\u00b0F (150\u00b0C)<\/td>\n<td>H\u00e0n ch\u1ecbu nhi\u1ec7t, c\u00f4ng su\u1ea5t cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Nam Ch\u00e2m Neodymium Cao C\u1ea5p NBAEM<\/h3>\n<p>NBAEM cung c\u1ea5p nam ch\u00e2m h\u00e0n neodymium cao c\u1ea5p \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 b\u1ec1n trong h\u00e0n t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. Nam ch\u00e2m c\u1ee7a h\u1ecd mang l\u1ea1i s\u1ee9c gi\u1eef v\u01b0\u1ee3t tr\u1ed9i trong khi ch\u1ed1ng m\u1ea5t t\u1eeb do nhi\u1ec7t. Nh\u1eefng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm n\u00e0y ho\u00e0n h\u1ea3o n\u1ebfu b\u1ea1n c\u1ea7n k\u1eb9p h\u00e0n t\u1eeb t\u00ednh b\u1ec1n b\u1ec9, \u0111\u00e1ng tin c\u1eady, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng c\u00e1c c\u00f4ng vi\u1ec7c kh\u00f3 kh\u0103n v\u00e0 th\u1eddi h\u1ea1n ch\u1eb7t ch\u1ebd.<\/p>\n<h2>C\u00e1c Lo\u1ea1i Nam Ch\u00e2m H\u00e0n<\/h2>\n<p>Nam ch\u00e2m h\u00e0n c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 thi\u1ebft k\u1ebf kh\u00e1c nhau, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1i nh\u00ecn nhanh v\u1ec1 c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn b\u1ea1n s\u1ebd th\u1ea5y tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/p>\n<h3>Nam Ch\u00e2m H\u00e0n \u0110i\u1ec3m H\u01b0\u1edbng M\u0169i T\u00ean<\/h3>\n<p>Ch\u00fang c\u00f3 h\u00ecnh d\u1ea1ng nh\u01b0 m\u0169i t\u00ean v\u1edbi \u0111\u1ea7u nam ch\u00e2m m\u1ea1nh \u0111\u1ec3 gi\u1eef c\u00e1c m\u1ea3nh kim lo\u1ea1i \u1edf g\u00f3c ch\u00ednh x\u00e1c. Ch\u00fang l\u00fd t\u01b0\u1edfng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb \u1ed1ng ho\u1eb7c thanh khi b\u1ea1n c\u1ea7n gi\u1ea3i ph\u00e1p kh\u00f4ng c\u1ea7n d\u00f9ng tay. Ph\u00f9 h\u1ee3p cho h\u00e0n 45\u00b0, 90\u00b0 v\u00e0 135\u00b0, nam ch\u00e2m h\u00e0n h\u00ecnh m\u0169i t\u00ean gi\u00fap k\u1eb9p nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n<h3>Gi\u00e1 \u0110\u1ee1 H\u00ecnh Vu\u00f4ng v\u00e0 G\u00f3c<\/h3>\n<p>Nam ch\u00e2m h\u00e0n h\u00ecnh vu\u00f4ng gi\u1eef hai m\u1ea3nh kim lo\u1ea1i \u1edf g\u00f3c 90\u00b0 ho\u00e0n h\u1ea3o. Gi\u00e1 \u0111\u1ee1 g\u00f3c th\u00ec t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng th\u01b0\u1eddng c\u00f3 nhi\u1ec1u g\u00f3c c\u1ed1 \u0111\u1ecbnh kh\u00e1c nhau. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 ch\u00ednh \u0111\u1ec3 x\u00e2y khung, l\u00e0m h\u1ed9p v\u00e0 l\u1eafp r\u00e1p kim lo\u1ea1i chung n\u01a1i c\u1ea7n gi\u1eef ch\u1eb7t, \u1ed5n \u0111\u1ecbnh.<\/p>\n<h3>C\u00e1c M\u1eabu \u0110i\u1ec1u Ch\u1ec9nh v\u00e0 Quay \u0110\u01b0\u1ee3c<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c c\u1ea7n linh ho\u1ea1t, nam ch\u00e2m h\u00e0n \u0111i\u1ec1u ch\u1ec9nh cho ph\u00e9p b\u1ea1n thay \u0111\u1ed5i g\u00f3c ngay khi l\u00e0m vi\u1ec7c. C\u00e1c m\u1eabu quay c\u00f3 th\u1ec3 xoay quanh, gi\u00fap d\u1ec5 d\u00e0ng th\u00edch nghi khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng l\u1ea1 ho\u1eb7c c\u1ea5u h\u00ecnh t\u00f9y ch\u1ec9nh. Ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c nhi\u1ec7m v\u1ee5 h\u00e0n v\u00e0 l\u1eafp r\u00e1p n\u00e2ng cao.<\/p>\n<h3>K\u1eb9p \u0111\u1ea5t t\u1eeb t\u00ednh<\/h3>\n<p>Nh\u1eefng chi\u1ebfc nam ch\u00e2m n\u00e0y g\u1eafn tr\u1ef1c ti\u1ebfp d\u00e2y c\u00e1p \u0111\u1ea5t h\u00e0n c\u1ee7a b\u1ea1n v\u00e0o chi ti\u1ebft gia c\u00f4ng. K\u1eb9p \u0111\u1ea5t t\u1eeb t\u00ednh c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u1ebft n\u1ed1i v\u00e0 gi\u1ea3m phi\u1ec1n to\u00e1i khi ph\u1ea3i k\u1eb9p v\u00e0o nh\u1eefng v\u1ecb tr\u00ed kh\u00f3 ti\u1ebfp c\u1eadn. Ch\u00fang \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c c\u00f4ng vi\u1ec7c n\u1eb7ng v\u00e0 l\u00e0m vi\u1ec7c ngo\u00e0i tr\u1eddi.<\/p>\n<h3>\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1c lo\u1ea1i nam ch\u00e2m h\u00e0n<\/h3>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m m\u0169i t\u00ean<\/td>\n<td>Gi\u1eef g\u00f3c ch\u00ednh x\u00e1c, d\u1ec5 d\u00e0ng thi\u1ebft l\u1eadp<\/td>\n<td>Ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf c\u00e1c g\u00f3c c\u1ee5 th\u1ec3<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 \u0111\u1ee1 vu\u00f4ng &amp; g\u00f3c<\/td>\n<td>Gi\u1eef \u1ed5n \u0111\u1ecbnh \u1edf g\u00f3c 90 \u0111\u1ed9 ho\u1eb7c nhi\u1ec1u g\u00f3c kh\u00e1c nhau<\/td>\n<td>C\u1ed3ng k\u1ec1nh h\u01a1n, \u00edt linh ho\u1ea1t h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u ch\u1ec9nh \/ xoay tr\u1ee5c<\/td>\n<td>G\u00f3c linh ho\u1ea1t, \u0111a d\u1ee5ng<\/td>\n<td>Th\u01b0\u1eddng \u0111\u1eaft h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>K\u1eb9p \u0111\u1ea5t t\u1eeb t\u00ednh<\/td>\n<td>\u0110\u1ea3m b\u1ea3o ti\u1ebfp \u0111\u1ea5t \u0111\u00e1ng tin c\u1eady, g\u1eafn nhanh<\/td>\n<td>Ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf kim lo\u1ea1i s\u1eaft t\u1eeb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>NBAEM cung c\u1ea5p d\u00f2ng nam ch\u00e2m h\u00e0n t\u00f9y ch\u1ec9nh, ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c th\u1ecb tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi cao. Nh\u1eefng chi\u1ebfc nam ch\u00e2m n\u00e0y k\u1ebft h\u1ee3p v\u1eadt li\u1ec7u b\u1ec1n b\u1ec9 v\u1edbi kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t m\u1ea1nh m\u1ebd v\u00e0 ch\u1ecbu nhi\u1ec7t, c\u00f3 ngh\u0129a l\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c x\u01b0\u1edfng l\u00e0m vi\u1ec7c nh\u1ed9n nh\u1ecbp v\u00e0 c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng.<\/p>\n<p>D\u00e0nh cho nh\u1eefng ai mu\u1ed1n kh\u00e1m ph\u00e1 c\u00e1c nguy\u00ean l\u00fd t\u1eeb t\u00ednh li\u00ean quan \u0111\u1ebfn d\u1ee5ng c\u1ee5 h\u00e0n, t\u00e0i nguy\u00ean c\u1ee7a NBAEM v\u1ec1 l\u1ef1c t\u1eeb v\u00e0 nam ch\u00e2m neodymium cung c\u1ea5p th\u00f4ng tin n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh <a href=\"https:\/\/nbaem.com\/vi\/what-is-a-neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\">t\u1ea1i \u0111\u00e2y<\/a> v\u00e0 c\u00e1ch nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u00fang <a href=\"https:\/\/nbaem.com\/vi\/what-is-the-effect-of-heating-neodymium-magnets\/\" target=\"_blank\" rel=\"noopener\">t\u1ea1i \u0111\u00e2y<\/a>.<\/p>\n<p>D\u00f9 l\u00e0 nam ch\u00e2m h\u00e0n m\u0169i t\u00ean hay k\u1eb9p \u0111\u1ea5t t\u1eeb t\u00ednh, vi\u1ec7c ch\u1ecdn \u0111\u00fang lo\u1ea1i c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn trong c\u00e1c d\u1ef1 \u00e1n gia c\u00f4ng kim lo\u1ea1i c\u1ee7a b\u1ea1n.<\/p>\n<h2>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m h\u00e0n<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/welding_magnets_efficiency_and_safety_nfco3cAKC.webp\" alt=\"hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n c\u1ee7a nam ch\u00e2m h\u00e0n\" \/><\/p>\n<p>Nam ch\u00e2m h\u00e0n mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch r\u00f5 r\u00e0ng gi\u00fap c\u00f4ng vi\u1ec7c gia c\u00f4ng kim lo\u1ea1i nhanh h\u01a1n v\u00e0 an to\u00e0n h\u01a1n. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 th\u00f4ng minh cho b\u1ea5t k\u1ef3 ai h\u00e0n, t\u1eeb ng\u01b0\u1eddi \u0111am m\u00ea \u0111\u1ebfn chuy\u00ean nghi\u1ec7p.<\/p>\n<h3>Hi\u1ec7u qu\u1ea3 v\u00e0 Ti\u1ebft ki\u1ec7m Th\u1eddi gian<\/h3>\n<ul>\n<li><strong>D\u1ee5ng c\u1ee5 h\u00e0n kh\u00f4ng c\u1ea7n tay<\/strong> gi\u1eef ch\u1eb7t c\u00e1c m\u1ea3nh, gi\u1ea3i ph\u00f3ng tay \u0111\u1ec3 l\u00e0m vi\u1ec7c th\u00f4ng minh h\u01a1n.<\/li>\n<li>Thi\u1ebft l\u1eadp nhanh cho ph\u00e9p b\u1ea1n \u0111\u1ecbnh v\u1ecb c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i trong v\u00e0i gi\u00e2y, kh\u00f4ng ph\u1ea3i ph\u00fat.<\/li>\n<li>V\u1ecb tr\u00ed h\u00e0n 90 \u0111\u1ed9 nh\u1ea5t qu\u00e1n gi\u1ea3m thi\u1ec3u c\u00f4ng \u0111o\u1ea1n s\u1eeda ch\u1eefa l\u1ea1i.<\/li>\n<\/ul>\n<h3>An to\u00e0n v\u00e0 C\u00f4ng th\u00e1i h\u1ecdc<\/h3>\n<ul>\n<li>Gi\u1ea3m nhu c\u1ea7u gi\u1eef kim lo\u1ea1i n\u00f3ng b\u1eb1ng tay, gi\u1ea3m nguy c\u01a1 b\u1ecfng.<\/li>\n<li>Gi\u1eef c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i \u1ed5n \u0111\u1ecbnh, ng\u0103n tr\u01b0\u1ee3t g\u00e2y th\u01b0\u01a1ng t\u00edch.<\/li>\n<li>Gi\u1ea3m thi\u1ec3u t\u01b0 th\u1ebf c\u01a1 th\u1ec3 kh\u00f3 ch\u1ecbu, gi\u1ea3m c\u0103ng th\u1eb3ng cho l\u01b0ng v\u00e0 c\u1ed5 tay.<\/li>\n<\/ul>\n<h3>\u0110\u1ed9 ch\u00ednh x\u00e1c cho th\u1ee3 h\u00e0n chuy\u00ean nghi\u1ec7p<\/h3>\n<ul>\n<li>Duy tr\u00ec g\u00f3c nh\u1ea5t qu\u00e1n \u0111\u1ec3 c\u00f3 m\u1ed1i h\u00e0n s\u1ea1ch s\u1ebd, ch\u1eafc ch\u1eafn m\u1ed7i l\u1ea7n.<\/li>\n<li>Gi\u00e1 \u0111\u1ee1 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm \u0111\u1ea3m b\u1ea3o grip ch\u1eafc ch\u1eafn ngay c\u1ea3 tr\u00ean b\u1ec1 m\u1eb7t kh\u00f4ng b\u1eb1ng ph\u1eb3ng.<\/li>\n<li>Ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng l\u1ec7ch h\u1ed3 quang b\u1eb1ng c\u00e1ch gi\u1eef kim lo\u1ea1i s\u1eaft ch\u1eafc ch\u1eafn, n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n.<\/li>\n<\/ul>\n<h3>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed v\u00e0 \u0111\u1ed9 b\u1ec1n<\/h3>\n<ul>\n<li>Ch\u1ebf t\u1ea1o ch\u1eafc ch\u1eafn \u0111\u1ec3 ch\u1ecbu nhi\u1ec7t cao v\u00e0 s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/li>\n<li>Ti\u1ebft ki\u1ec7m ti\u1ec1n b\u1eb1ng c\u00e1ch gi\u1ea3m v\u1eadt li\u1ec7u v\u00e0 th\u1eddi gian l\u00e3ng ph\u00ed.<\/li>\n<li>Nhi\u1ec1u m\u1eabu nh\u01b0 nam ch\u00e2m h\u00e0n neodymium c\u1ee7a NBAEM mang l\u1ea1i gi\u00e1 tr\u1ecb l\u00e2u d\u00e0i m\u00e0 kh\u00f4ng t\u1ed1n k\u00e9m qu\u00e1 nhi\u1ec1u.<\/li>\n<\/ul>\n<h3>Nghi\u00ean c\u1ee9u th\u00e0nh c\u00f4ng th\u1ef1c t\u1ebf<\/h3>\n<table>\n<thead>\n<tr>\n<th>T\u00ecnh hu\u1ed1ng<\/th>\n<th>K\u1ebft qu\u1ea3 khi kh\u00f4ng s\u1eed d\u1ee5ng nam ch\u00e2m<\/th>\n<th>K\u1ebft qu\u1ea3 v\u1edbi Nam ch\u00e2m h\u00e0n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>L\u1eafp r\u00e1p khung th\u00e9p<\/td>\n<td>Th\u01b0\u1eddng xuy\u00ean chuy\u1ec3n \u0111\u1ed5i ph\u1ea7n -&gt; g\u00e2y ch\u1eadm tr\u1ec5<\/td>\n<td>Ph\u1ea7n \u1ed5n \u0111\u1ecbnh -&gt; ho\u00e0n th\u00e0nh nhanh h\u01a1n 30%<\/td>\n<\/tr>\n<tr>\n<td>H\u00e0n DIY nh\u1ecf t\u1ea1i nh\u00e0<\/td>\n<td>G\u1eb7p kh\u00f3 kh\u0103n v\u1edbi vi\u1ec7c gi\u1eef ch\u1eb7t l\u00fang t\u00fang<\/td>\n<td>V\u1ecb tr\u00ed d\u1ec5 d\u00e0ng -&gt; h\u00e0n an to\u00e0n, s\u1ea1ch s\u1ebd h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>H\u00e0n t\u1ea1i x\u01b0\u1edfng chuy\u00ean nghi\u1ec7p<\/td>\n<td>S\u1eeda l\u1ea1i do l\u1ed7i g\u00f3c<\/td>\n<td>Gi\u1eef ch\u1eb7t ch\u00ednh x\u00e1c -&gt; n\u00e2ng cao s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a kh\u00e1ch h\u00e0ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nam ch\u00e2m h\u00e0n mang l\u1ea1i t\u1ed1c \u0111\u1ed9, an to\u00e0n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u2014 l\u00e0m cho ch\u00fang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong gia c\u00f4ng kim lo\u1ea1i t\u1ea1i Vi\u1ec7t Nam. D\u00f9 b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c t\u1ea1i c\u00f4ng tr\u01b0\u1eddng hay trong gara, nam ch\u00e2m ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1ch b\u1ea1n h\u00e0n.<\/p>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Nam ch\u00e2m h\u00e0n<\/h2>\n<p>Nam ch\u00e2m h\u00e0n l\u00e0 b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 d\u00f9 b\u1ea1n \u0111ang l\u00e0m d\u1ef1 \u00e1n DIY trong gara nh\u00e0 ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng chuy\u00ean nghi\u1ec7p. \u0110\u1ed1i v\u1edbi s\u1edf th\u00edch c\u00e1 nh\u00e2n, c\u00e1c k\u1eb9p h\u00e0n t\u1eeb t\u00ednh n\u00e0y gi\u00fap gi\u1eef ch\u1eb7t c\u00e1c m\u1ea3nh kim lo\u1ea1i, gi\u1ea3i ph\u00f3ng tay \u0111\u1ec3 h\u00e0n ho\u1eb7c c\u1eaft ch\u00ednh x\u00e1c. T\u00ednh n\u0103ng \u0111\u1ecbnh v\u1ecb h\u00e0n 90 \u0111\u1ed9 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi b\u1ea1n c\u1ea7n g\u00f3c ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng g\u1eb7p r\u1eafc r\u1ed1i.<\/p>\n<p>Trong s\u1ea3n xu\u1ea5t v\u00e0 x\u00e2y d\u1ef1ng chuy\u00ean nghi\u1ec7p, nam ch\u00e2m h\u00e0n gi\u00fap t\u0103ng t\u1ed1c d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p v\u00e0 n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c ngay t\u1ea1i ch\u1ed7. Ch\u00fang gi\u00fap gi\u1eef c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i s\u1eaft t\u1eeb \u0111\u00fang v\u1ecb tr\u00ed trong qu\u00e1 tr\u00ecnh h\u00e0n, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed1i h\u00e0n m\u1ea1nh h\u01a1n, s\u1ea1ch h\u01a1n v\u00e0 \u00edt ph\u1ea3i s\u1eeda ch\u1eefa l\u1ea1i. C\u00e1c k\u1eb9p nam ch\u00e2m c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 xoay tr\u00f2n r\u1ea5t ph\u1ed5 bi\u1ebfn \u1edf \u0111\u00e2y v\u00ec t\u00ednh linh ho\u1ea1t trong c\u00e1c c\u00f4ng tr\u00ecnh ph\u1ee9c t\u1ea1p.<\/p>\n<p>Vi\u1ec7c l\u1eafp r\u00e1p v\u00e0 m\u00e0i b\u00f3ng ti\u00ean ti\u1ebfn c\u0169ng \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb c\u00e1c k\u1eb9p nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm. Ch\u00fang gi\u1eef ch\u1eb7t c\u00e1c b\u1ed9 ph\u1eadn m\u00e0 kh\u00f4ng b\u1ecb tr\u01b0\u1ee3t, gi\u1ea3m thi\u1ec3u r\u1ee7i ro sai s\u00f3t v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 l\u00e0m vi\u1ec7c. C\u00e1c k\u1eb9p nam ch\u00e2m c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i cho ph\u00e9p b\u1ea1n nhanh ch\u00f3ng g\u1eafn ho\u1eb7c th\u00e1o c\u00e1c b\u1ed9 ph\u1eadn, r\u1ea5t ti\u1ec7n l\u1ee3i khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n l\u1eb7p l\u1ea1i.<\/p>\n<p>N\u1ebfu b\u1ea1n \u0111ang ngh\u0129 \u0111\u1ebfn vi\u1ec7c th\u00eam nam ch\u00e2m h\u00e0n v\u00e0o b\u1ed9 d\u1ee5ng c\u1ee5 c\u1ee7a m\u00ecnh, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o \u0111\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a ch\u00fang:<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1c h\u00ecnh d\u1ea1ng nam ch\u00e2m kh\u00e1c nhau nh\u01b0 nam ch\u00e2m m\u0169i t\u00ean cho c\u00e1c v\u1ecb tr\u00ed ch\u1eb7t v\u00e0 c\u00e1c k\u1eb9p vu\u00f4ng cho b\u1ec1 m\u1eb7t ph\u1eb3ng.<\/li>\n<li>Gi\u1eef cho nam ch\u00e2m s\u1ea1ch s\u1ebd v\u00e0 kh\u00f4ng b\u1ecb d\u00ednh x\u1ec9 h\u00e0n \u0111\u1ec3 duy tr\u00ec l\u1ef1c gi\u1eef ch\u1eb7t m\u1ea1nh m\u1ebd.<\/li>\n<li>K\u1ebft h\u1ee3p nam ch\u00e2m h\u00e0n v\u1edbi k\u1eb9p \u0111\u1ea5t t\u1eeb \u0111\u1ec3 gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng b\u00f9ng h\u1ed3 trong qu\u00e1 tr\u00ecnh h\u00e0n.<\/li>\n<li>L\u1eadp k\u1ebf ho\u1ea1ch c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1eb7t nam ch\u00e2m s\u1edbm trong giai \u0111o\u1ea1n chu\u1ea9n b\u1ecb nh\u1eb1m ti\u1ebft ki\u1ec7m th\u1eddi gian.<\/li>\n<\/ul>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p c\u1ea7n ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m c\u00f4ng nghi\u1ec7p \u0111\u00e1ng tin c\u1eady, NBAEM cung c\u1ea5p gi\u1ea3i ph\u00e1p cung \u1ee9ng s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. C\u00e1c nam ch\u00e2m h\u00e0n neodymium c\u1ee7a h\u1ecd mang l\u1ea1i s\u1ee9c gi\u1eef \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n cao, gi\u00fap c\u00e1c chuy\u00ean gia ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c ch\u00ednh x\u00e1c m\u1ed7i l\u1ea7n.<\/p>\n<h2>C\u00e1ch ch\u1ecdn v\u00e0 b\u1ea3o tr\u00ec nam ch\u00e2m h\u00e0n<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang nam ch\u00e2m h\u00e0n b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c hi\u1ec3u r\u00f5 nhu c\u1ea7u c\u1ee7a b\u1ea1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh c\u1ea7n l\u01b0u \u00fd:<\/p>\n<ul>\n<li><strong>L\u1ef1c gi\u1eef<\/strong>: \u0110\u1ea3m b\u1ea3o nam ch\u00e2m c\u00f3 th\u1ec3 gi\u1eef ch\u1eafc c\u00e1c chi ti\u1ebft c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n, \u0111\u1eb7c bi\u1ec7t n\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi kim lo\u1ea1i n\u1eb7ng h\u01a1n.<\/li>\n<li><strong>Lo\u1ea1i nam ch\u00e2m<\/strong>: Nam ch\u00e2m h\u00e0n neodymium cung c\u1ea5p l\u1ef1c gi\u1eef m\u1ea1nh nh\u01b0ng c\u1ea7n ch\u00fa \u00fd kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a ch\u00fang. Trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n, h\u00e3y xem x\u00e9t s\u1eed d\u1ee5ng nam ch\u00e2m ferrite.<\/li>\n<li><strong>G\u00f3c v\u00e0 h\u00ecnh d\u1ea1ng<\/strong>: Ch\u1ecdn c\u00e1c lo\u1ea1i nam ch\u00e2m nh\u01b0 k\u1eb9p g\u00f3c ho\u1eb7c k\u1eb9p vu\u00f4ng d\u1ef1a tr\u00ean g\u00f3c h\u00e0n b\u1ea1n th\u01b0\u1eddng s\u1eed d\u1ee5ng\u2014th\u01b0\u1eddng l\u00e0 g\u00f3c 90 \u0111\u1ed9.<\/li>\n<li><strong>Ch\u1ecbu nhi\u1ec7t<\/strong>: Qu\u00e1 tr\u00ecnh h\u00e0n sinh nhi\u1ec7t; ch\u1ecdn nam ch\u00e2m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao h\u01a1n \u0111\u1ec3 tr\u00e1nh m\u1ea5t t\u1eeb t\u00ednh.<\/li>\n<li><strong>Ch\u1ee9ng nh\u1eadn an to\u00e0n<\/strong>: T\u00ecm ki\u1ebfm c\u00e1c lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n ng\u00e0nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 an to\u00e0n.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 t\u00ednh di \u0111\u1ed9ng<\/strong>: T\u00f9y thu\u1ed9c v\u00e0o kh\u00f4ng gian l\u00e0m vi\u1ec7c v\u00e0 quy m\u00f4 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n, ch\u1ecdn c\u00e1c lo\u1ea1i nam ch\u00e2m d\u1ec5 thao t\u00e1c m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m s\u1ee9c m\u1ea1nh gi\u1eef.<\/li>\n<\/ul>\n<p><strong>Th\u1ef1c h\u00e0nh b\u1ea3o tr\u00ec t\u1ed1t nh\u1ea5t<\/strong><\/p>\n<ul>\n<li>Gi\u1eef cho nam ch\u00e2m h\u00e0n s\u1ea1ch s\u1ebd v\u00e0 kh\u00f4ng c\u00f3 m\u1ea3nh kim lo\u1ea1i r\u01a1i v\u00e3i \u0111\u1ec3 duy tr\u00ec l\u1ef1c gi\u1eef ch\u1eafc.<\/li>\n<li>Tr\u00e1nh l\u00e0m qu\u00e1 n\u00f3ng nam ch\u00e2m b\u1eb1ng c\u00e1ch th\u00e1o ch\u00fang ra kh\u1ecfi khu v\u1ef1c h\u00e0n khi kh\u00f4ng s\u1eed d\u1ee5ng.<\/li>\n<li>L\u01b0u tr\u1eef nam ch\u00e2m \u1edf n\u01a1i kh\u00f4 r\u00e1o \u0111\u1ec3 tr\u00e1nh r\u1ec9 s\u00e9t tr\u00ean v\u1ecf kim lo\u1ea1i.<\/li>\n<li>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 nam ch\u00e2m \u0111\u1ec3 ph\u00e1t hi\u1ec7n n\u1ee9t ho\u1eb7c h\u01b0 h\u1ecfng.<\/li>\n<li>S\u1eed d\u1ee5ng c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 n\u1ebfu c\u00f3 \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd nam ch\u00e2m.<\/li>\n<\/ul>\n<p><strong>Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/strong><\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng nam ch\u00e2m v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a ch\u00fang, g\u00e2y m\u1ea5t t\u1eeb t\u00ednh v\u0129nh vi\u1ec5n.<\/li>\n<li>Ch\u1ea5t qu\u00e1 t\u1ea3i nam ch\u00e2m v\u1edbi kim lo\u1ea1i n\u1eb7ng h\u01a1n kh\u1ea3 n\u0103ng gi\u1eef c\u1ee7a ch\u00fang.<\/li>\n<li>B\u1ecf qua c\u00e1c t\u00e1c \u0111\u1ed9ng arc blow c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m.<\/li>\n<li>Kh\u00f4ng l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t kim lo\u1ea1i tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng nam ch\u00e2m, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng gi\u1eef ch\u1eb7t.<\/li>\n<\/ul>\n<p><strong>Danh s\u00e1ch ki\u1ec3m tra \u0110\u00e1nh gi\u00e1 v\u00e0 B\u1ea3o tr\u00ec<\/strong><\/p>\n<ul>\n<li>X\u00e1c nh\u1eadn l\u1ef1c gi\u1eef ch\u1eb7t ngay tr\u01b0\u1edbc m\u1ed7i d\u1ef1 \u00e1n.<\/li>\n<li>X\u00e1c nh\u1eadn nam ch\u00e2m duy tr\u00ec h\u00ecnh d\u1ea1ng v\u00e0 t\u00ednh to\u00e0n v\u1eb9n.<\/li>\n<li>Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 c\u1ee7a nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft l\u1eadp h\u00e0n c\u1ee7a b\u1ea1n.<\/li>\n<li>L\u00e0m s\u1ea1ch v\u00e0 l\u01b0u tr\u1eef nam ch\u00e2m \u0111\u00fang c\u00e1ch sau khi s\u1eed d\u1ee5ng.<\/li>\n<li>Thay th\u1ebf nam ch\u00e2m b\u1ecb m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng k\u1ecbp th\u1eddi.<\/li>\n<\/ul>\n<p>T\u1ea1i NBAEM, ch\u00fang t\u00f4i h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng v\u1edbi l\u1eddi khuy\u00ean ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u h\u00e0n c\u1ee7a b\u1ea1n. Nam ch\u00e2m neodymium ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng nghi\u1ec7p c\u1ee7a ch\u00fang t\u00f4i \u0111i k\u00e8m c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p cho nhi\u1ec1u \u1ee9ng d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c c\u00f4ng c\u1ee5 h\u00e0n kh\u00f4ng tay v\u00e0 \u0111\u1ecbnh v\u1ecb kim lo\u1ea1i s\u1eaft tin c\u1eady. \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 t\u1eeb t\u00ednh, h\u00e3y xem h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/what-is-magnetic-hysteresis\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">hysteresis t\u1eeb<\/span><\/strong><\/a><strong><span style=\"color: #ff6600;\">.<\/span><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 xem nam ch\u00e2m h\u00e0n l\u00e0 g\u00ec v\u00e0 c\u00e1ch nh\u1eefng d\u1ee5ng c\u1ee5 hi\u1ebfm c\u00f3 n\u00e0y gi\u1eef ch\u1eafc kim lo\u1ea1i \u1edf c\u00e1c g\u00f3c ch\u00ednh x\u00e1c \u0111\u1ec3 h\u00e0n kh\u00f4ng c\u1ea7n d\u00f9ng tay, mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>","protected":false},"author":1,"featured_media":3302,"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-3304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/11\/welding_magnets_efficiency_and_safety_nfco3cAKC.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3304","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=3304"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3304\/revisions"}],"predecessor-version":[{"id":3305,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3304\/revisions\/3305"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3302"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}