{"id":3652,"date":"2026-01-16T09:17:50","date_gmt":"2026-01-16T09:17:50","guid":{"rendered":"https:\/\/nbaem.com\/?p=3652"},"modified":"2026-06-27T12:46:00","modified_gmt":"2026-06-27T12:46:00","slug":"what-is-the-use-of-magnetic-bar","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-the-use-of-magnetic-bar\/","title":{"rendered":"S\u1eed d\u1ee5ng nam ch\u00e2m thanh bar C\u00f4ng nghi\u1ec7p H\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<h2>S\u1eed d\u1ee5ng nam ch\u00e2m h\u00ecnh thanh l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 th\u1ef1c t\u1ebf<\/h2>\n<p>Khi ch\u00fang ta n\u00f3i v\u1ec1 vi\u1ec7c duy tr\u00ec \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a s\u1ea3n ph\u1ea9m v\u00e0 b\u1ea3o v\u1ec7 m\u00e1y m\u00f3c \u0111\u1eaft ti\u1ec1n, <strong>thanh t\u1eeb<\/strong>\u2014th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn trong ng\u00e0nh nh\u01b0 m\u1ed9t <strong>thanh l\u1ecdc t\u1eeb t\u00ednh<\/strong>\u2014l\u00e0 ng\u01b0\u1eddi h\u00f9ng th\u1ea7m l\u1eb7ng c\u1ee7a d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. V\u1ec1 c\u01a1 b\u1ea3n, \u0111\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t nam ch\u00e2m \u0111\u01a1n gi\u1ea3n; n\u00f3 l\u00e0 m\u1ed9t t\u1ed5 h\u1ee3p nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c <strong>l\u1eafp gh\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1eaft gi\u1eef b\u1ee5i s\u1eaft m\u1ecbn, c\u00e1c m\u1ea1t kim lo\u1ea1i v\u00e0 kim lo\u1ea1i l\u1ea1c trong v\u1eadt li\u1ec7u c\u00f3 d\u00f2ng ch\u1ea3y t\u1ef1 do.<\/p>\n<p>Ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t nh\u1eefng c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu n\u00e0y b\u1eb1ng c\u00e1ch nh\u1ed3i l\u00f5i <a href=\"https:\/\/nbaem.com\/vi\/products\/neodymium-magnet\/\" target=\"_blank\" rel=\"noopener\"><strong>NdFeB Neodymium<\/strong><\/a> c\u00f3 m\u1eadt \u0111\u1ed9 t\u1eeb cao ho\u1eb7c l\u00f5i Samarium Cobalt v\u00e0o v\u1ecf th\u00e9p kh\u00f4ng g\u1ec9 <strong>li\u1ec1n m\u1ea1ch, \u0111\u01b0\u1ee3c h\u00e0n to\u00e0n b\u1ed9<\/strong>304 ho\u1eb7c 316L <strong>lo\u1ea1i b\u1ecf \u00f4 nhi\u1ec5m s\u1eaft<\/strong>.<\/p>\n<p>V\u1ecf n\u00e0y \u0111\u1ea3m b\u1ea3o m\u1ea1ch t\u1eeb \u0111\u01b0\u1ee3c waterproof v\u00e0 \u0111\u1ee7 b\u1ec1n \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p kh\u1eafc nghi\u1ec7t. D\u00f9 b\u1ea1n v\u1eadn h\u00e0nh m\u1ed9t nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 HACCP hay m\u1ed9t c\u01a1 s\u1edf nh\u1ef1a b\u1ea3o v\u1ec7 khu\u00f4n ti\u00eam, c\u00f4ng d\u1ee5ng ch\u00ednh l\u00e0 r\u00f5 r\u00e0ng: tuy\u1ec7t \u0111\u1ed1i <strong>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, t\u00f4i s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n ch\u00ednh x\u00e1c c\u00e1ch ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c thanh n\u00e0y \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng b\u1ec1 m\u1eb7t l\u00ean t\u1edbi<\/strong> 12.000 Gauss<\/p>\n<div id=\"attachment_3655\" style=\"width: 661px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3655\" class=\"size-full wp-image-3655\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar.jpg\" alt=\"Thanh t\u1eeb t\u00ednh\" width=\"651\" height=\"328\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-18x9.jpg 18w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-200x101.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-300x151.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-400x202.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-540x272.jpg 540w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar-600x302.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar.jpg 651w\" sizes=\"(max-width: 651px) 100vw, 651px\" \/><p id=\"caption-attachment-3655\" class=\"wp-caption-text\">Thanh t\u1eeb t\u00ednh<\/p><\/div>\n<h2>L\u1ecdc v\u00e0 Ph\u00e2n c\u00e1ch C\u00f4ng nghi\u1ec7p: Nh\u1eefng Ng\u01b0\u1eddi Nh\u1ea5c V\u0129 \u0110\u1ea1i<\/h2>\n<p>T\u1ea1i NBAEM, ch\u00fang t\u00f4i thi\u1ebft k\u1ebf <strong>thanh l\u1ecd t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh<\/strong> nh\u1eb1m l\u00e0m h\u00e0ng r\u00e0o b\u1ea3o v\u1ec7 ch\u00ednh tr\u00ean c\u00e1c d\u00f2ng ch\u1ebf bi\u1ebfn. \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 nh\u1eefng \u1ed1ng kim lo\u1ea1i \u0111\u01a1n gi\u1ea3n; ch\u00fang l\u00e0 nh\u1eefng b\u1ed9 ph\u00e2n t\u00e1ch c\u00f4ng su\u1ea5t cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u00fat kim lo\u1ea1i g\u00e2y h\u1ea1i ra kh\u1ecfi v\u1eadt li\u1ec7u ch\u1ea3y t\u1ef1 do. Trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, \u0111\u1ed9 tinh khi\u1ebft l\u00e0 m\u1ecdi th\u1ee9. D\u00f9 b\u1ea1n \u0111ang x\u1eed l\u00fd b\u1ed9t, h\u1ea1t ho\u1eb7c ch\u1ea5t l\u1ecfng, thanh t\u1eeb ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t \u0111i\u1ec3m ki\u1ec3m tra quan tr\u1ecdng \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 b\u1ea3o v\u1ec7 m\u00e1y m\u00f3c \u0111\u1eaft ti\u1ec1n ph\u00eda sau.<\/p>\n<h3>Lo\u1ea1i b\u1ecf v\u1eadt nhi\u1ec5m s\u1eaft trong Th\u00f9ng t\u1ea3i v\u00e0 D\u1eabn n\u01b0\u1edbc<\/h3>\n<p>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ch\u00fang t\u00f4i th\u1ea5y cho m\u1ed9t <strong>nam ch\u00e2m ph\u1ec5u<\/strong> or <strong>l\u1eafp r\u00e1p nam ch\u00e2m l\u01b0\u1edbi<\/strong> ngay t\u1ea1i \u0111i\u1ec3m nh\u1eadn. B\u1eb1ng c\u00e1ch l\u1eafp c\u00e1c thanh n\u00e0y v\u00e0o c\u00e1c m\u00e1ng x\u1ed1i, th\u00f9ng t\u1ea3i v\u00e0 \u1ed1ng d\u1eabn, ch\u00fang t\u00f4i hi\u1ec7u qu\u1ea3 b\u1eaft \u0111\u01b0\u1ee3c <strong>lo\u1ea1i b\u1ecf kim lo\u1ea1i t\u1ee5t h\u1ed9c<\/strong> tr\u01b0\u1edbc khi g\u00e2y ra s\u1ef1 h\u1ed7n lo\u1ea1n.<\/p>\n<ul>\n<li><strong>C\u1ea5p Li\u00eau Theo Tr\u1ecdng l\u1ef1c:<\/strong> Khi v\u1eadt li\u1ec7u r\u01a1i qua thanh, tr\u01b0\u1eddng t\u1eeb b\u1eaft c\u00e1c bu l\u00f4ng, \u1ed1c v\u00e0 b\u1ee5i s\u1eaft tinh.<\/li>\n<li><strong>\u0110\u01b0\u1eddng \u1ed1ng ch\u1ea5t l\u1ecfng:<\/strong> Trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1eddng \u1ed1ng, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng <strong>nam ch\u00e2m \u1ed1ng<\/strong> h\u1ec7 th\u1ed1ng \u0111\u1ec3 l\u1ecdc ch\u1ea5t l\u1ecfng v\u00e0 b\u00f9n<\/li>\n<li><strong>B\u1ea3o v\u1ec7:<\/strong> \u0110i\u1ec1u n\u00e0y ng\u0103n kim lo\u1ea1i l\u1ecdt v\u00e0o m\u00e1y nghi\u1ec1n, m\u00e1y nghi\u1ec1n, ho\u1eb7c m\u00e1y \u0111\u00fac nh\u1ef1a, ti\u1ebft ki\u1ec7m h\u00e0ng ngh\u00ecn chi ph\u00ed s\u1eeda ch\u1eefa.<\/li>\n<\/ul>\n<h3>Ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u1ee7 ch\u1ed1t: Th\u1ef1c ph\u1ea9m, Nh\u1ef1a v\u00e0 B\u1ea3o v\u1ec7 D\u01b0\u1ee3c ph\u1ea9m<\/h3>\n<p>C\u00e1c khu v\u1ef1c kh\u00e1c nhau d\u1ef1a v\u00e0o <strong>l\u1ecdc t\u1eeb t\u00ednh c\u00f4ng nghi\u1ec7p<\/strong> v\u1edbi nh\u1eefng l\u00fd do ri\u00eang, nh\u01b0ng m\u1ee5c ti\u00eau v\u1eabn gi\u1ed1ng nhau: s\u1ef1 thu\u1ea7n khi\u1ebft tuy\u1ec7t \u0111\u1ed1i.<\/p>\n<ul>\n<li><strong>X\u1eed l\u00fd th\u1ef1c ph\u1ea9m:<\/strong> Ch\u00fang t\u00f4i d\u00f9ng <strong>v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L<\/strong> \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n HACCP v\u00e0 an to\u00e0n th\u1ef1c ph\u1ea9m kh\u1eaft khe. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 v\u1ea3y kim lo\u1ea1i r\u01a1i v\u00e0o s\u1ea3n ph\u1ea9m ti\u00eau th\u1ee5 cu\u1ed1i c\u00f9ng.<\/li>\n<li><strong>Nh\u1ef1a:<\/strong> M\u1ed9t m\u1ea9u kim lo\u1ea1i \u0111\u01a1n l\u1ebb c\u00f3 th\u1ec3 ph\u00e1 h\u1ecfng m\u1ed9t khu\u00f4n ti\u00eam ch\u00ednh x\u00e1c. Thanh c\u1ee7a ch\u00fang t\u00f4i b\u1eaft gi\u1eef c\u00e1c t\u1ea1p ch\u1ea5t n\u00e0y \u0111\u1ec3 gi\u1eef cho qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t di\u1ec5n ra su\u00f4n s\u1ebb.<\/li>\n<li><strong>D\u01b0\u1ee3c ph\u1ea9m:<\/strong> Y\u00eau c\u1ea7u \u0111\u1ed9 tinh khi\u1ebft cao \u0111\u00f2i h\u1ecfi s\u1ee9c m\u1ea1nh l\u1edbn nh\u1ea5t <strong>Nam ch\u00e2m thanh NdFeB h\u00ecnh thanh Neodymium (NdFeB)<\/strong> \u0111\u1ec3 b\u1eaft \u0111\u01b0\u1ee3c ngay c\u1ea3 c\u00e1c h\u1ea1t th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 t\u1eeb t\u00ednh y\u1ebfu<\/li>\n<\/ul>\n<h3>V\u00f2ng t\u1eeb th\u00f4ng t\u1eeb h\u00f3a b\u1eaft v\u1ec9 kim lo\u1ea1i v debris<\/h3>\n<p>Ph\u00e9p thu\u1eadt x\u1ea3y ra b\u00ean trong \u1ed1ng. Ch\u00fang t\u00f4i t\u1eadn d\u1ee5ng m\u1ed9t m\u1eadt \u0111\u1ed9 cao <strong>l\u1eafp gh\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu<\/strong>\u2014th\u01b0\u1eddng l\u00e0 Neodymium ho\u1eb7c Samarium Cobalt\u2014 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp \u0111\u1ec3 t\u1ea1o ra c\u00e1c tr\u01b0\u1eddng t\u1eeb m\u1ea1nh t\u1eadp trung. C\u00e1ch s\u1eafp x\u1ebfp n\u00e0y t\u1ea1o ra c\u00e1c \u201cv\u00f2ng t\u1eeb th\u00f4ng\u201d \u0111\u1eb7c bi\u1ec7t d\u1ecdc theo chi\u1ec1u d\u00e0i c\u1ee7a thanh.<\/p>\n<p>Khi m\u1ea3nh kim lo\u1ea1i s\u1eaft v\u1ee5n \u0111i qua \u0111\u00e2y <strong>gi\u00e1 tr\u1ecb m\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong>, n\u00f3 l\u1eadp t\u1ee9c b\u1ecb h\u00fat v\u1ec1 c\u00e1c khu v\u1ef1c c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao nh\u1ea5t (hai c\u1ef1c). Kim lo\u1ea1i b\u1ecb b\u1eaft gi\u1eef di chuy\u1ec3n t\u1edbi m\u1eb7t d\u01b0\u1edbi c\u1ee7a thanh, ng\u0103n ch\u1eb7n d\u00f2ng v\u1eadt ch\u1ea5t b\u1ecb r\u1eeda ng\u01b0\u1ee3c tr\u1edf l\u1ea1i d\u00f2ng ch\u1ea3y. \u0110\u1ec3 hi\u1ec3u ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng \u0111\u1eb1ng sau hi\u1ec7u su\u1ea5t b\u1eaft gi\u1eef n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 xem x\u00e9t ph\u1ea7n c\u1ee7a ch\u00fang t\u00f4i <a href=\"https:\/\/nbaem.com\/vi\/guide-to-rare-earth-magnets\/\" target=\"_blank\" rel=\"noopener\">h\u01b0\u1edbng d\u1eabn v\u1ec1 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm<\/a>, gi\u1ea3i th\u00edch c\u00e1c ch\u1ea5t li\u1ec7u c\u1ed1t l\u00f5i m\u00e0 ch\u00fang t\u00f4i s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng b\u1ec1 m\u1eb7t l\u00ean t\u1edbi <strong>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, t\u00f4i s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n ch\u00ednh x\u00e1c c\u00e1ch ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c thanh n\u00e0y \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng b\u1ec1 m\u1eb7t l\u00ean t\u1edbi<\/strong>\u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng khi m\u1ed9t h\u1ea1t b\u1ecb m\u1eafc k\u1eb9t, n\u00f3 s\u1ebd \u1edf l\u1ea1i b\u1ecb k\u1eb9t cho \u0111\u1ebfn khi \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch.<\/p>\n<h2>B\u00ea t\u00f4ng ti\u1ec1n ch\u1ebf v\u00e0 Th\u1ee7 thu\u1eadt X\u00e2y d\u1ef1ng Magic<\/h2>\n<p>Trong khi th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi qu\u00e1 tr\u00ecnh l\u1ecdc, s\u1ee9c m\u1ea1nh m\u1ea1nh m\u1ebd <strong>l\u1eafp gh\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> c\u00f4ng ngh\u1ec7 b\u00ean trong c\u00e1c thanh c\u1ee7a ch\u00fang t\u00f4i \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong ng\u00e0nh b\u00ea t\u00f4ng ti\u1ec1n ch\u1ebf. Ch\u00fang t\u00f4i t\u1eadn d\u1ee5ng c\u01b0\u1eddng \u0111\u1ed9 cao <strong>NdFeB Neodymium<\/strong> c\u00e1c l\u00f5i \u0111\u01b0\u1ee3c bao quanh b\u1eb1ng th\u00e9p b\u1ec1n \u0111\u1ec3 c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1ch c\u00e1c khu\u00f4n b\u00ea t\u00f4ng \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0 \u0111\u1ecbnh h\u00ecnh, tr\u00e1nh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng g\u00e2y ph\u00e1 ho\u1ea1i.<\/p>\n<h3>D\u1ea3i chamfer t\u1eeb t\u00ednh cho c\u00e1c c\u1ea1nh ho\u00e0n h\u1ea3o<\/h3>\n<p>\u0110\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c g\u00f3c bo vi b\u00ea t\u00f4ng ch\u00ednh x\u00e1c \u0111\u00f2i h\u1ecfi s\u1ef1 \u1ed5n \u0111\u1ecbnh tuy\u1ec7t \u0111\u1ed1i. A <strong>d\u1ea3i bo vi t\u1eeb t\u00ednh<\/strong> \u00f9n t\u1ef1 kh\u00f3a tr\u1ef1c ti\u1ebfp l\u00ean b\u00e0n \u0111\u1ed5 gang th\u00e9p, lo\u1ea1i b\u1ecf nhu c\u1ea7u d\u00f9ng v\u00edt, bu-l\u00f4ng ho\u1eb7c h\u00e0n. \u1ee8ng d\u1ee5ng n\u00e0y d\u1ef1a tr\u00ean c\u00f9ng nguy\u00ean l\u00fd t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh c\u01b0u c\u01b0\u1eddng \u0111\u1ed9 cao m\u00e0 ch\u00fang t\u00f4i thi\u1ebft k\u1ebf cho c\u00e1c que l\u1ecdc, \u0111\u1ea3m b\u1ea3o d\u1ea3i t\u1eeb t\u00ednh kh\u00f4ng th\u1ec3 di chuy\u1ec3n trong qu\u00e1 tr\u00ecnh \u0111\u1ed5 v\u00e0 rung. K\u1ebft qu\u1ea3 l\u00e0 m\u00e9p \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch, kh\u00f4ng r\u00f2 r\u1ec9 m\u1ed7i l\u1ea7n.<\/p>\n<h3>Nam ch\u00e2m \u0111\u1ed5 khu\u00f4n: Gi\u1eef ray m\u00e0 kh\u00f4ng h\u00e0n<\/h3>\n<p>K\u1ef9 thu\u1eadt formwork truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng l\u00e0m h\u1ecfng b\u1ea3ng th\u00e9p \u0111\u1eaft ti\u1ec1n qua vi\u1ec7c khoan v\u00e0 h\u00e0n l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. <strong>Nam ch\u00e2m \u0111\u00f3ng c\u1ed1 \u0111\u1ecbnh khu\u00f4n<\/strong> gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng kh\u1ed1i nam ch\u00e2m m\u1ea1nh \u0111\u1ec3 k\u1eb9p ch\u1ed1t hai b\u00ean v\u1eefng ch\u1eafc t\u1ea1i ch\u1ed7. C\u00e1c c\u1ee5m l\u1eafp n\u00e0y b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a khu\u00f4n v\u00e0 cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh nhanh ch\u00f3ng. \u0110\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i cung c\u1ea5p <a href=\"https:\/\/nbaem.com\/vi\/service\/\" target=\"_blank\" rel=\"noopener\">d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh<\/a> \u0111\u1ec3 th\u00edch nghi c\u00e1c gi\u1ea3i ph\u00e1p nam ch\u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao n\u00e0y v\u1edbi c\u00e1c y\u00eau c\u1ea7u k\u1ebft c\u1ea5u c\u1ee5 th\u1ec3.<\/p>\n<h3>L\u1ee3i \u00edch: T\u1ed1c \u0111\u1ed9, T\u00e1i s\u1eed d\u1ee5ng v\u00e0 B\u1ea3o v\u1ec7 khu\u00f4n<\/h3>\n<p>Chuy\u1ec3n sang h\u1ec7 th\u1ed1ng c\u1ed1 \u0111\u1ecbnh b\u1eb1ng nam ch\u00e2m mang l\u1ea1i \u01b0u \u0111i\u1ec3m v\u1eadn h\u00e0nh r\u00f5 r\u1ec7t so v\u1edbi c\u1ed1 \u0111\u1ecbnh b\u1eb1ng c\u01a1 kh\u00ed.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Kh\u00f4ng h\u00e0n<\/strong><\/td>\n<td style=\"text-align: left;\">M\u1edf r\u1ed9ng tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c b\u00e0n \u0111\u00fac th\u00e9p b\u1eb1ng c\u00e1ch ng\u0103n ng\u1eeba h\u01b0 h\u1ea1i b\u1ec1 m\u1eb7t.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng cao<\/strong><\/td>\n<td style=\"text-align: left;\">V\u1ecf th\u00e9p b\u1ec1n (SUS304\/316L) \u0111\u1ea3m b\u1ea3o d\u1ee5ng c\u1ee5 k\u00e9o d\u00e0i nhi\u1ec1u n\u0103m.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Thi\u1ebft l\u1eadp nhanh<\/strong><\/td>\n<td style=\"text-align: left;\">Gi\u1ea3m th\u1eddi gian lao \u0111\u1ed9ng b\u1eb1ng c\u00e1ch \u0111\u01a1n gi\u1ea3n \u0111\u1eb7t v\u00e0 g\u1eafn nam ch\u00e2m.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ng\u0103n r\u00f2 r\u1ec9<\/strong><\/td>\n<td style=\"text-align: left;\">M\u1ee9c gi\u1eef ch\u1eb7t m\u1ea1nh ng\u0103n b\u00ea t\u00f4ng r\u00f2 r\u1ec9 qua c\u00e1c khe h\u1edf.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Vai tr\u00f2 trong S\u1ea3n xu\u1ea5t v\u00e0 T\u1ef1 \u0111\u1ed9ng h\u00f3a<\/h2>\n<p>Ngo\u00e0i qu\u00e1 tr\u00ecnh l\u1ecdc \u0111\u01a1n gi\u1ea3n, ch\u00fang t\u00f4i thi\u1ebft k\u1ebf <strong>thanh t\u1eeb t\u00ednh<\/strong> \u0111\u1ec3 ph\u1ee5c v\u1ee5 nh\u01b0 nh\u1eefng th\u00e0nh ph\u1ea7n then ch\u1ed1t trong c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t t\u1ef1 \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i. Tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng v\u00e0 \u0111\u1ed9 b\u1ec1n \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u00fang khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c nhi\u1ec7m v\u1ee5 c\u1ea3m bi\u1ebfn kh\u00f4ng ti\u1ebfp x\u00fac v\u00e0 x\u1eed l\u00fd v\u1eadt li\u1ec7u m\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c.<\/p>\n<h3>Ph\u00e1t hi\u1ec7n g\u1ea7n b\u1eb1ng v\u1edbi c\u1ea3m bi\u1ebfn Hall<\/h3>\n<p>Trong c\u00e1c m\u00e1y t\u1ef1 \u0111\u1ed9ng, \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 t\u1ea5t c\u1ea3. Thanh t\u1eeb t\u00ednh c\u1ee7a ch\u00fang t\u00f4i th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 y\u1ebfu t\u1ed1 k\u00edch ho\u1ea1t cho <strong>\u1ee9ng d\u1ee5ng c\u1ea3m bi\u1ebfn c\u1ea3m bi\u1ebfn Hall<\/strong>. V\u00ec c\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y d\u1ef1a v\u00e0o vi\u1ec7c ph\u00e1t hi\u1ec7n t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ho\u1eb7c t\u1ed1c \u0111\u1ed9, s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a nam ch\u00e2m r\u1ea5t quan tr\u1ecdng.<\/p>\n<ul>\n<li><strong>Chuy\u1ec3n m\u1ea1ch kh\u00f4ng ti\u1ebfp x\u00fac:<\/strong> Kh\u00e1c v\u1edbi C\u00f4ng t\u1eafc c\u01a1 h\u1ecdc d\u1ec5 m\u00f2n, m\u1ed9t <strong>l\u1eafp gh\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> k\u00edch ho\u1ea1t c\u1ea3m bi\u1ebfn m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac v\u1eadt l\u00fd, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li><strong>M\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t:<\/strong> C\u00e1c k\u00edch ho\u1ea1t t\u1eeb t\u00ednh ho\u1ea1t \u0111\u1ed9ng ho\u00e0n h\u1ea3o trong c\u00e1c m\u00f4i tr\u01b0\u1eddng b\u1ea9n ho\u1eb7c c\u00f3 d\u1ea7u m\u1ee1 n\u01a1i c\u1ea3m bi\u1ebfn quang h\u1ecdc th\u01b0\u1eddng g\u1eb7p s\u1ef1 c\u1ed1.<\/li>\n<li><strong>Chu k\u1ef3 nh\u1ea5t qu\u00e1n:<\/strong> Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng l\u00f5i ch\u1ea5t l\u01b0\u1ee3ng cao\u2014hi\u1ec3u \u0111\u01b0\u1ee3c <a href=\"https:\/\/nbaem.com\/vi\/how-to-make-ndfeb-magnet\/\">c\u00e1ch l\u00e0m nam ch\u00e2m NdFeB<\/a> v\u1eadt li\u1ec7u cho ph\u00e9p ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o m\u1eadt \u0111\u1ed9 flux \u1ed5n \u0111\u1ecbnh ng\u0103n ch\u1eb7n s\u1ef1 l\u1ec7ch t\u00edn hi\u1ec7u theo th\u1eddi gian.<\/li>\n<\/ul>\n<h3>C\u00e1c b\u1ed9 ph\u1eadn \u1ed5n \u0111\u1ecbnh tr\u00ean h\u1ec7 th\u1ed1ng v\u1eadn chuy\u1ec3n d\u1ecdc<\/h3>\n<p>Di chuy\u1ec3n c\u00e1c chi ti\u1ebft s\u1eaft ch\u1ed1ng l\u1ea1i tr\u1ecdng l\u1ef1c \u0111\u00f2i h\u1ecfi s\u1ef1 gi\u1eef ch\u1eb7t an to\u00e0n. Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c ray v\u00e0 l\u1eafp gh\u00e9p thanh t\u1eeb t\u00ednh n\u1eb1m ph\u00eda sau b\u0103ng t\u1ea3i \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh s\u1ea3n ph\u1ea9m trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n.<\/p>\n<ul>\n<li><strong>V\u1eadn chuy\u1ec3n th\u1eb3ng \u0111\u1ee9ng:<\/strong> Nam ch\u00e2m gi\u1eef h\u1ed9p th\u00e9p, n\u1eafp ho\u1eb7c c\u00e1c chi ti\u1ebft \u0111\u00fac ch\u1eafc ch\u1eafn gi\u1eefa belt, cho ph\u00e9p di chuy\u1ec3n th\u1eb3ng \u0111\u1ee9ng ho\u1eb7c \u0111\u1ea3o ng\u01b0\u1ee3c m\u00e0 kh\u00f4ng b\u1ecb tr\u01b0\u1ee3t.<\/li>\n<li><strong>Ki\u1ec3m so\u00e1t rung \u0111\u1ed9ng:<\/strong> Tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng l\u00e0m gi\u1ea3m rung \u0111\u1ed9ng, gi\u1eef cho c\u00e1c b\u1ed9 ph\u1eadn c\u0103n ch\u1ec9nh cho giai \u0111o\u1ea1n x\u1eed l\u00fd ti\u1ebfp theo, nh\u01b0 s\u01a1n ho\u1eb7c \u0111\u1ed5 \u0111\u1ea7y.<\/li>\n<li><strong>Chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng b\u1eb1ng 0:<\/strong> V\u00ec \u0111\u00e2y l\u00e0 nam ch\u00e2m v\u0129nh c\u1eedu, ch\u00fang cung c\u1ea5p l\u1ef1c gi\u1eef li\u00ean t\u1ee5c m\u00e0 kh\u00f4ng c\u1ea7n \u0111i\u1ec7n ho\u1eb7c sinh nhi\u1ec7t.<\/li>\n<\/ul>\n<h2>\u1ee8ng d\u1ee5ng trong ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 x\u1eed l\u00fd h\u00f3a ch\u1ea5t<\/h2>\n<p>Trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt h\u00f3a h\u1ecdc v\u00e0 nghi\u00ean c\u1ee9u ph\u00f2ng th\u00ed nghi\u1ec7m, \u0111\u1ed9 tinh khi\u1ebft l\u00e0 t\u1ea5t c\u1ea3. Ch\u00fang t\u00f4i d\u1ef1a v\u00e0o thanh t\u1eeb kh\u00f4ng ch\u1ec9 \u0111\u1ec3 gi\u1eef m\u1ecdi th\u1ee9 \u1edf v\u1ecb tr\u00ed m\u00e0 c\u00f2n \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng kh\u00f4ng ch\u1ee9a t\u1ea1p ch\u1ea5t.<\/p>\n<h3>Thanh khu\u1ea5y t\u1eeb cho tr\u1ed9n v\u00f4 tr\u00f9ng<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng trong ph\u00f2ng th\u00ed nghi\u1ec7m, <strong>thanh khu\u1ebfch t\u1eeb t\u1eeb<\/strong> l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u01a1 b\u1ea3n. \u0110\u00e2y l\u00e0 nh\u1eefng thanh t\u1eeb t\u00ednh nh\u1ecf, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u v\u00f4 tr\u00f9ng h\u00f3a h\u1ecdc nh\u01b0 PTFE (Teflon), \u0111\u01b0\u1ee3c th\u1ea3 tr\u1ef1c ti\u1ebfp v\u00e0o b\u00ecnh ho\u1eb7c c\u1ed1c. B\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng quay t\u1eeb m\u1ed9t \u0111\u1ebf \u0111\u0129a, thanh quay nhanh \u0111\u1ec3 tr\u1ed9n dung d\u1ecbch m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ti\u1ebfp x\u00fac v\u1eadt l\u00fd t\u1eeb m\u1ed9t thanh b\u00ean ngo\u00e0i. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p <strong>tr\u1ed9n v\u00f4 tr\u00f9ng<\/strong> trong c\u00e1c dung m\u00f4i \u0111\u01b0\u1ee3c \u0111\u00f3ng k\u00edn, ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m t\u1eeb b\u00ean ngo\u00e0i v\u00e0 b\u1ea3o v\u1ec7 nh\u00e2n vi\u00ean kh\u1ecfi c\u00e1c h\u01a1i \u0111\u1ed9c h\u1ea1i. M\u1eb7c d\u00f9 nh\u1ecf h\u01a1n c\u00e1c thanh l\u1ecdc c\u00f4ng nghi\u1ec7p c\u1ee7a ch\u00fang t\u00f4i, ch\u00fang d\u1ef1a tr\u00ean c\u00f9ng l\u00f5i nam ch\u00e2m v\u0129nh c\u1eedu ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 duy tr\u00ec li\u00ean k\u1ebft v\u1edbi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<h3>Ph\u00e2n t\u00e1ch \u0111\u01b0\u1eddng \u1ed1ng ch\u1ea5t l\u1ecfng trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t<\/h3>\n<p>Khi m\u1edf r\u1ed9ng l\u00ean quy tr\u00ecnh c\u00f4ng nghi\u1ec7p, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00e1c thanh l\u1ecdc t\u1eeb t\u00ednh ch\u1ecbu t\u1ea3i n\u1eb7ng \u0111\u1ec3 tinh l\u1ecdc c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m l\u1ecfng. Trong c\u00e1c nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, dung ch\u1ea5t th\u01b0\u1eddng ch\u1ea3y qua c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng n\u01a1i <strong>lo\u1ea1i b\u1ecf kim lo\u1ea1i t\u1ee5t h\u1ed9c<\/strong> l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u01a1m v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n<ul>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n:<\/strong> Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c thanh n\u00e0y b\u1eb1ng <strong>v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L<\/strong>. Giai \u0111o\u1ea1n n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi th\u00e9p 304 ti\u00eau chu\u1ea9n so v\u1edbi m\u00f4i tr\u01b0\u1eddng axit ho\u1eb7c ki\u1ec1m kh\u1eafc nghi\u1ec7t, \u0111\u1ea3m b\u1ea3o thanh kh\u00f4ng suy gi\u1ea3m.<\/li>\n<li><strong>X\u1eed l\u00fd \u1edf nhi\u1ec7t \u0111\u1ed9 cao:<\/strong> C\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc th\u01b0\u1eddng sinh ra nhi\u1ec7t l\u1edbn. \u0110\u1ed1i v\u1edbi c\u00e1c d\u00f2ng n\u00e0y, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng <a href=\"https:\/\/nbaem.com\/vi\/guide-to-rare-earth-magnets\/\" target=\"_blank\" rel=\"noopener\">h\u01b0\u1edbng d\u1eabn v\u1ec1 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm<\/a> \u0111\u1ec3 l\u1ef1a ch\u1ecdn <strong>Nam ch\u00e2m SmCo \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/strong> (Samarium Cobalt), duy tr\u00ec s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng c\u1ee7a ch\u00fang ngay c\u1ea3 khi nhi\u1ec7t \u0111\u1ed9 l\u00ean t\u1edbi 350\u00b0C.<\/li>\n<li><strong>\u0110\u1ed9 linh ho\u1ea1t l\u1eafp \u0111\u1eb7t:<\/strong> C\u00e1c thanh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o <strong>nam ch\u00e2m \u1ed1ng<\/strong> b\u1ed9 r\u00e1p ho\u1eb7c \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp nh\u01b0 <strong>l\u01b0\u1edbi nam ch\u00e2m<\/strong> trong c\u00e1c h\u1ed9c v\u00e0 m\u00e1ng ch\u1ea5t l\u1ecfng. C\u00e0i \u0111\u1eb7t n\u00e0y bu\u1ed9c ch\u1ea5t l\u1ecfng ch\u1ea3y quanh c\u00e1c thanh, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngay c\u1ea3 c\u00e1c h\u1ea1t s\u1eaft tinh nh\u1ea5t c\u0169ng b\u1ecb b\u1eaft l\u1ea1i b\u1edfi flux t\u1eeb tr\u01b0\u1eddng cao tr\u01b0\u1edbc khi s\u1ea3n ph\u1ea9m chuy\u1ec3n sang giai \u0111o\u1ea1n ti\u1ebfp theo.<\/li>\n<\/ul>\n<h2>X\u01b0\u1edfng l\u00e0m vi\u1ec7c h\u00e0ng ng\u00e0y v\u00e0 m\u1eb9o an to\u00e0n<\/h2>\n<h3>S\u1eafp x\u1ebfp D\u1ee5ng c\u1ee5 v\u1edbi D\u1ea3i ch\u1ecbu l\u1ef1c<\/h3>\n<p>Ngo\u00e0i c\u00e1c m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p, m\u1ed9t thanh t\u1eeb \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 d\u1ecdn d\u1eb9p kh\u00f4ng gian l\u00e0m vi\u1ec7c. Ch\u00fang ta th\u01b0\u1eddng th\u1ea5y c\u00e1c b\u1ed9 gh\u00e9p nam ch\u00e2m v\u0129nh vi\u1ec5n c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean t\u01b0\u1eddng x\u01b0\u1edfng \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u1edd l\u00ea, tua v\u00edt v\u00e0 m\u0169i khoan. Kh\u00f4ng gi\u1ed1ng v\u1edbi d\u1ea3i d\u00f9ng cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng ti\u00eau chu\u1ea9n, c\u00e1c thanh c\u1ea5p c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng l\u00f5i Neodymium m\u1ea1nh m\u1ebd ng\u0103n c\u00e1c c\u00f4ng c\u1ee5 n\u1eb7ng b\u1ecb tr\u01b0\u1ee3t. C\u00e0i \u0111\u1eb7t n\u00e0y gi\u1eef thi\u1ebft b\u1ecb quan tr\u1ecdng \u1edf m\u1eaft v\u00e0 trong t\u1ea7m v\u1edbi, c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 quy tr\u00ecnh l\u00e0m vi\u1ec7c. S\u1ee9c gi\u1eef \u1ed5n \u0111\u1ecbnh ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o <a href=\"https:\/\/nbaem.com\/vi\/quality-of-neodymium-magnets\/\" target=\"_blank\" rel=\"noopener\">ch\u1ea5t l\u01b0\u1ee3ng nam ch\u00e2m Neodymium<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u00ean trong \u1ed1ng, \u0111\u1ea3m b\u1ea3o c\u00f4ng c\u1ee5 \u1edf y\u00ean cho \u0111\u1ebfn khi b\u1ea1n c\u1ea7n ch\u00fang.<\/p>\n<h3>M\u00e1y qu\u00e9t t\u1eeb cho ki\u1ec3m so\u00e1t FOD v\u00e0 an to\u00e0n<\/h3>\n<p>An to\u00e0n l\u00e0 y\u1ebfu t\u1ed1 h\u00e0ng \u0111\u1ea7u trong b\u1ea5t k\u1ef3 m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t ho\u1eb7c x\u00e2y d\u1ef1ng n\u00e0o. C\u00e1c thanh t\u1eeb \u0111\u00f3ng vai tr\u00f2 th\u00e0nh ph\u1ea7n l\u00f5i trong d\u1ee5ng c\u1ee5 qu\u00e9t t\u1eeb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e0m s\u1ea1ch s\u00e0n kh\u1ecfi m\u1ea3nh kim lo\u1ea1i nguy hi\u1ec3m. B\u1eb1ng c\u00e1ch g\u1eafn m\u1ed9t thanh nam ch\u00e2m ch\u1eafc ch\u1eafn v\u00e0o tay c\u1ea7m c\u00f3 b\u00e1nh xe ho\u1eb7c khung g\u1eafn \u1edf xe n\u00e2ng, ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 nhanh ch\u00f3ng nh\u1eb7t l\u00ean \u0111inh, \u1ed1c v\u00edt v\u00e0 m\u1ea1t kim lo\u1ea1i c\u00f3 th\u1ec3 g\u00e2y th\u1ee7ng l\u1ed1p ho\u1eb7c nguy c\u01a1 v\u1ea5p ng\u00e3. Qu\u00e1 tr\u00ecnh n\u00e0y, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ki\u1ec3m so\u00e1t FOD (Foreign Object Debris), nh\u1edd m\u1eadt \u0111\u1ed9 flux t\u1eeb tr\u01b0\u1eddng m\u1ea1nh c\u1ee7a thanh \u0111\u1ec3 b\u1eaft \u0111\u01b0\u1ee3c c\u00e1c v\u1eadt s\u1eaft ngay l\u1eadp t\u1ee9c. V\u1ecf th\u00e9p kh\u00f4ng g\u1ec9 304 ho\u1eb7c 316L b\u1ea3o v\u1ec7 nam ch\u00e2m b\u00ean trong kh\u1ecfi va \u0111\u1eadp, l\u00e0m cho c\u00e1c m\u00e1y qu\u00e9t n\u00e0y \u0111\u1ee7 b\u1ec1n cho \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t \u1edf Garage v\u00e0 nh\u00e0 kho.<\/p>\n<h2>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn Thanh t\u1eeb \u0111\u00fang<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang <strong>thanh l\u1ecdc t\u1eeb t\u00ednh<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 ch\u1ecdn k\u00edch th\u01b0\u1edbc; n\u00f3 l\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p gi\u1eefa c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1edbi m\u00f4i tr\u01b0\u1eddng x\u1eed l\u00fd c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c thanh c\u1ee7a m\u00ecnh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u c\u00f4ng nghi\u1ec7p \u0111a d\u1ea1ng, t\u1eeb an to\u00e0n th\u1ef1c ph\u1ea9m \u0111\u1ebfn khai th\u00e1c n\u1eb7ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng s\u1ed1.<\/p>\n<h3>Cu\u1ed9c \u0111\u1ea5u v\u1eadt v\u1eadt li\u1ec7u: Neodymium vs. Ferrite vs. SmCo<\/h3>\n<p>V\u1eadt li\u1ec7u l\u00f5i b\u00ean trong \u1ed1ng quy\u1ebft \u0111\u1ecbnh s\u1ee9c m\u1ea1nh t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m Thanh Neodymium (NdFeB) \u0111\u1ec3 thanh<\/strong> \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n trong ng\u00e0nh cho qu\u00e1 tr\u00ecnh l\u1ecdc v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 cao. Ch\u00fang cung c\u1ea5p tr\u01b0\u1eddng t\u1eeb m\u1ea1nh nh\u1ea5t, l\u00e0m cho ch\u00fang l\u00fd t\u01b0\u1edfng \u0111\u1ec3 b\u1eaft s\u1eaft b\u1ee5i kim lo\u1ea1i nh\u1ecf v\u00e0 c\u00e1c h\u1ea1t t\u1eeb y\u1ebfu trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m v\u00e0 nh\u1ef1a.<\/li>\n<li><strong><a href=\"https:\/\/nbaem.com\/vi\/products\/samarium-cobalt-magnets\/\" target=\"_blank\" rel=\"noopener\">Cobalt Samari (SmCo)<\/a>:<\/strong> Khi d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh ti\u00eau chu\u1ea9n (tr\u00ean 150\u00b0C), nam ch\u00e2m ti\u00eau chu\u1ea9n m\u1ea5t \u0111i s\u1ee9c m\u1ea1nh. Cho nh\u1eefng m\u00f4i tr\u01b0\u1eddng c\u1ef1c \u0111oan n\u00e0y, ch\u00fang t\u00f4i d\u00f9ng nam ch\u00e2m SmCo hi\u1ec7u su\u1ea5t cao duy tr\u00ec \u1ed5n \u0111\u1ecbnh \u0111\u1ebfn 350\u00b0C.<\/li>\n<li><strong><a href=\"https:\/\/nbaem.com\/vi\/products\/ceramic-magnet\/\" target=\"_blank\" rel=\"noopener\">S\u1eaft ferrit<\/a>:<\/strong> M\u1eb7c d\u00f9 \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf c\u00e1c thanh \u0111\u1ed9 ch\u00ednh x\u00e1c cao do s\u1ee9c m\u1ea1nh th\u1ea5p h\u01a1n, ch\u00fang c\u00f3 chi ph\u00ed t\u1ed1i \u01b0u cho vi\u1ec7c lo\u1ea1i b\u1ecf s\u1eaft l\u1ea1c sang l\u1edbn n\u01a1i vi\u1ec7c l\u1ecdc h\u1ea1t m\u1ecbn kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">V\u1eadt li\u1ec7u<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/th>\n<th style=\"text-align: left;\">Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a<\/th>\n<th style=\"text-align: left;\">\u1ee8ng d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>NdFeB Neodymium<\/strong><\/td>\n<td style=\"text-align: left;\">R\u1ea5t cao (l\u00ean \u0111\u1ebfn 12.000 Gauss)<\/td>\n<td style=\"text-align: left;\">80\u00b0C \u2013 150\u00b0C<\/td>\n<td style=\"text-align: left;\">B\u1ed9t m\u1ecbn, th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c ph\u1ea9m<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>SmCo<\/strong><\/td>\n<td style=\"text-align: left;\">Cao<\/td>\n<td style=\"text-align: left;\">L\u00ean \u0111\u1ebfn 350\u00b0C<\/td>\n<td style=\"text-align: left;\">D\u1ea7u n\u00f3ng cao, khu\u00f4n \u0111\u00fac<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>S\u1eaft ferrit<\/strong><\/td>\n<td style=\"text-align: left;\">Th\u1ea5p\/Trung b\u00ecnh<\/td>\n<td style=\"text-align: left;\">L\u00ean \u0111\u1ebfn 250\u00b0C<\/td>\n<td style=\"text-align: left;\">Lo\u1ea1i b\u1ecf s\u1eaft l\u1ea1c l\u1edbn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>V\u1ecf \u1ed1ng Quan tr\u1ecdng: Th\u00e9p kh\u00f4ng g\u1ec9 304 so v\u1edbi 316L<\/h3>\n<p>\u0110\u1ed9 b\u1ec1n c\u1ee7a m\u1ed9t c\u00e1i <strong>l\u1eafp gh\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu<\/strong> ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o v\u1ecf ngo\u00e0i c\u1ee7a n\u00f3. Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 h\u00e0n Laser \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c \u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c ni\u00eam phong ho\u00e0n to\u00e0n v\u00e0 ch\u1ed1ng n\u01b0\u1edbc.<\/p>\n<ul>\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 SUS304:<\/strong> L\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p chung. N\u00f3 cung c\u1ea5p \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t cho nh\u1ef1a, g\u1ed1m s\u1ee9 v\u00e0 ng\u00e0nh t\u00e1i ch\u1ebf.<\/li>\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 SUS316L:<\/strong> Y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c cho c\u00e1c d\u00f2ng th\u1ef1c ph\u1ea9m, \u0111\u1ed3 u\u1ed1ng v\u00e0 d\u01b0\u1ee3c ph\u1ea9m. \u0110i\u1ec1u n\u00e0y <strong>v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L<\/strong> t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u1edd v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n v\u1ec7 sinh nghi\u00eam ng\u1eb7t (HACCP), ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m trong m\u00f4i tr\u01b0\u1eddng axit ho\u1eb7c mu\u1ed1i.<\/li>\n<\/ul>\n<h3>Hi\u1ec3u c\u00e1c X\u1ebfp h\u1ea1ng Gauss cho L\u1ecdc<\/h3>\n<div id=\"attachment_3656\" style=\"width: 743px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3656\" class=\"wp-image-3656\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--1024x772.jpg\" alt=\"thanh nam ch\u00e2m      b\u1ec1 m\u1eb7t gauss        m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng t\u1eeb\" width=\"733\" height=\"553\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--16x12.jpg 16w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--200x151.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--300x226.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--400x302.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--600x452.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--768x579.jpg 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--800x603.jpg 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux--1024x772.jpg 1024w, https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/magnetic-bar-magnetic-flux-.jpg 1098w\" sizes=\"(max-width: 733px) 100vw, 733px\" \/><p id=\"caption-attachment-3656\" class=\"wp-caption-text\">b\u1ec1 m\u1eb7t thanh t\u1eeb tr\u01b0\u1eddng gauss t\u1eeb tr\u01b0\u1eddng t\u1eeb<\/p><\/div>\n<p><strong>M\u1eadt \u0111\u1ed9 flux t\u1eeb<\/strong>, \u0111o b\u1eb1ng Gauss, cho bi\u1ebft m\u1ee9c \u0111\u1ed9 x\u00e2m nh\u1eadp c\u1ee7a tr\u01b0\u1eddng t\u1eeb v\u00e0 h\u1ea1t b\u1ea5t k\u1ef3 c\u00f3 th\u1ec3 b\u1ecb gi\u1eef l\u1ea1i nh\u1ecf \u0111\u1ebfn m\u1ee9c n\u00e0o.<\/p>\n<ul>\n<li><strong>6,000 \u2013 8,000 Gauss:<\/strong> \u0110\u1ed9 m\u1ea1nh ti\u00eau chu\u1ea9n. Hi\u1ec7u qu\u1ea3 \u0111\u1ec3 b\u1eaft v\u00edt, bu l\u00f4ng v\u00e0 c\u00e1c m\u1ea3nh kim lo\u1ea1i l\u1edbn.<\/li>\n<li><strong>10,000 \u2013 12,000 Gauss:<\/strong> C\u01b0\u1eddng \u0111\u1ed9 cao. Y\u00eau c\u1ea7u \u0111\u1ec3 b\u1eaft c\u00e1c h\u1ea1t paramagnetic vi m\u00f4 v\u00e0 b\u1ee5i m\u00e0i t\u1eeb th\u00e9p kh\u00f4ng g\u1ec9.<\/li>\n<\/ul>\n<p>L\u1ef1a ch\u1ecdn x\u1ebfp h\u1ea1ng Gauss ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o b\u1ea1n kh\u00f4ng chi ti\u00eau qu\u00e1 m\u1ee9c cho c\u00f4ng su\u1ea5t kh\u00f4ng c\u1ea7n thi\u1ebft ho\u1eb7c b\u1ea3o v\u1ec7 qu\u00e1 m\u1ee9c d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n.<\/p>\n<h2>C\u00e1c th\u1ef1c ti\u1ec5n b\u1ea3o tr\u00ec v\u00e0 l\u00e0m s\u1ea1ch t\u1ed1t nh\u1ea5t<\/h2>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o nam ch\u00e2m c\u1ee7a b\u1ea1n <strong>thanh l\u1ecdc t\u1eeb t\u00ednh<\/strong> ti\u1ebfp t\u1ee5c b\u1eaft gi\u1eef c\u00e1c h\u1ea1t s\u1eaft m\u1ecbn m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, m\u1ed9t l\u1ecbch tr\u00ecnh l\u00e0m s\u1ea1ch nghi\u00eam ng\u1eb7t l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. Khi <strong>lo\u1ea1i b\u1ecf \u00f4 nhi\u1ec5m s\u1eaft<\/strong> th\u00e0nh c\u00f4ng, t\u00edch t\u1ee5 kim lo\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t thanh c\u00f3 th\u1ec3 cu\u1ed1i c\u00f9ng k\u1ebft n\u1ed1i m\u1ea1ch t\u1eeb, l\u00e0m gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng hi\u1ec7u qu\u1ea3. Ch\u00fang t\u00f4i khuy\u00ean n\u00ean thi\u1ebft l\u1eadp m\u1ed9t th\u00f3i quen d\u1ef1a tr\u00ean kh\u1ed1i l\u01b0\u1ee3ng \u00f4 nhi\u1ec5m trong lu\u1ed3ng v\u1eadt li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t 12.000 Gauss \u1edf m\u1ee9c \u0111\u1ec9nh. Vi\u1ec7c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean trong qu\u00e1 tr\u00ecnh l\u00e0m s\u1ea1ch c\u0169ng l\u00e0 th\u1eddi \u0111i\u1ec3m ho\u00e0n h\u1ea3o \u0111\u1ec3 hi\u1ec3u <a href=\"https:\/\/nbaem.com\/vi\/how-long-do-magnets-last\/\" target=\"_blank\" rel=\"noopener\">hai l\u00e2u magnets v\u0129nh vi\u1ec5n c\u00f3 th\u1ec3 k\u00e9o d\u00e0i \u0111\u01b0\u1ee3c<\/a> trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n<h3>Lau b\u1eb1ng tay so v\u1edbi H\u1ec7 th\u1ed1ng \u1ed0 sleeve D\u1ec5 l\u00e0m s\u1ea1ch<\/h3>\n<p>L\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p l\u00e0m s\u1ea1ch ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng su\u1ea5t v\u00e0 y\u00eau c\u1ea7u an to\u00e0n c\u1ee7a b\u1ea1n.<\/p>\n<ul>\n<li><strong>V\u1ec7 sinh th\u1ee7 c\u00f4ng:<\/strong> \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n cho c\u01a1 b\u1ea3n <strong>nam ch\u00e2m \u1ed1ng<\/strong>. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh th\u00e1o thanh v\u00e0 lau th\u1ee7 c\u00f4ng kim lo\u1ea1i Captured v\u1ec1 ph\u00eda c\u00e1c \u0111\u1ea7u kh\u00f4ng t\u1eeb t\u00ednh b\u1eb1ng kh\u0103n ho\u1eb7c tay c\u00f3 g\u0103ng. V\u00ec nam ch\u00e2m Neodymium c\u1ee7a ch\u00fang t\u00f4i c\u00f3 s\u1ee9c m\u1ea1nh r\u1ea5t l\u1edbn, m\u1ea3nh kim lo\u1ea1i b\u00e1m ch\u1eafc. Lu\u00f4n s\u1eed d\u1ee5ng g\u0103ng tay ch\u1ecbu l\u1ef1c \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u1eaft do m\u1ea3y kim lo\u1ea1i s\u1eafc.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng \u1ed0 sleeve D\u1ec5 l\u00e0m s\u1ea1ch:<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c d\u00f2ng t\u1ef1 \u0111\u1ed9ng ho\u1eb7c d\u00f2ng s\u1ea3n l\u01b0\u1ee3ng cao, ch\u00fang t\u00f4i thi\u1ebft k\u1ebf <strong>h\u1ec7 th\u1ed1ng d\u1ec5 l\u00e0m s\u1ea1ch<\/strong>. Thanh nam ch\u00e2m \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean trong m\u1ed9t \u1ed1ng \u00e1o th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ee5. \u0110\u1ec3 l\u00e0m s\u1ea1ch n\u00f3, b\u1ea1n ch\u1ec9 c\u1ea7n k\u00e9o l\u00f5i t\u1eeb ra kh\u1ecfi \u1ed1ng. Khi kh\u00f4ng c\u00f2n t\u1eeb tr\u01b0\u1eddng gi\u1eef ch\u00fang, ch\u1ea5t \u00f4 nhi\u1ec5m r\u01a1i xu\u1ed1ng ngay. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nhanh h\u01a1n, an to\u00e0n h\u01a1n cho ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00e0 gi\u1ea3m m\u00e0i m\u00f2n tr\u00ean <strong>v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L<\/strong>.<\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u00e1c thanh nam ch\u00e2m<\/h2>\n<h3>C\u00e1c thanh t\u1eeb c\u00f3 th\u1ec3 m\u1ea5t \u0111i s\u1ee9c m\u1ea1nh theo th\u1eddi gian kh\u00f4ng?<\/h3>\n<p>Trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, c\u00e1c t\u1ed5 h\u1ee3p nam ch\u00e2m v\u0129nh c\u1eedu ch\u1ea5t l\u01b0\u1ee3ng cao <strong>gi\u1eef n\u0103ng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang g\u1ea7n nh\u01b0 v\u00f4 h\u1ea1n. Ch\u00fang kh\u00f4ng th\u1ec3 \u201ctr\u00f4i h\u1ebft\u201d n\u0103ng l\u01b0\u1ee3ng nh\u01b0 pin. Tuy nhi\u00ean, ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao ho\u1eb7c s\u1ed1c v\u1eadt l\u00fd c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m m\u1eadt \u0111\u1ed9 t\u1eeb flux. Ti\u00eau chu\u1ea9n<\/strong> ban h\u00e0nh <strong>Nam ch\u00e2m thanh NdFeB h\u00ecnh thanh Neodymium (NdFeB)<\/strong> th\u00f4ng th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng an to\u00e0n l\u00ean t\u1edbi 80\u00b0C. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n, ch\u00fang t\u00f4i khuy\u00ean d\u00f9ng <a href=\"https:\/\/nbaem.com\/vi\/samarium-cobalt-magnet-data-sheet\/\" target=\"_blank\" rel=\"noopener\">T\u00e0i li\u1ec7u d\u1eef li\u1ec7u nam ch\u00e2m samari cobalt<\/a> c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ec3 ch\u1ecdn <strong>nam ch\u00e2m SmCo \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/strong>, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1edbi 350\u00b0C m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t t\u1eeb t\u00ednh \u0111\u00e1ng k\u1ec3.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t thanh nam ch\u00e2m v\u00e0 nam ch\u00e2m h\u00ecnh \u1ed1ng l\u00e0 g\u00ec?<\/h3>\n<p>Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, nh\u1eefng thu\u1eadt ng\u1eef n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng thay th\u1ebf cho nhau. V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, \u201c\u1ed1ng\u201d \u00e1m ch\u1ec9 l\u1edbp v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 b\u1ea3o v\u1ec7, trong khi <strong>thanh t\u1eeb<\/strong> (ho\u1eb7c <strong>thanh l\u1ecdc t\u1eeb t\u00ednh<\/strong>) l\u00e0 s\u1ea3n ph\u1ea9m ho\u00e0n ch\u1ec9nh ch\u1ee9a l\u00f5i nam ch\u00e2m. D\u00f9 b\u1ea1n g\u1ecdi n\u00f3 l\u00e0 thanh, que, ho\u1eb7c <strong>nam ch\u00e2m h\u00ecnh \u1ed1ng<\/strong>, ch\u1ee9c n\u0103ng v\u1eabn nh\u01b0 nhau: thu gi\u1eef m\u1ea1t s\u1eaft. Ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t c\u00e1c thanh n\u00e0y v\u1edbi \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u d\u00e0i t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi <strong>nam ch\u00e2m ph\u1ec5u<\/strong> c\u1ea5u h\u00ecnh l\u01b0\u1edbi ho\u1eb7c c\u1ea5u h\u00ecnh kh\u00e1c.<\/p>\n<h3>C\u00e1c thanh nam ch\u00e2m c\u00f3 an to\u00e0n cho qu\u00e1 tr\u00ecnh x\u1eed l\u00fd th\u1ef1c ph\u1ea9m kh\u00f4ng?<\/h3>\n<p>C\u00f3, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng c\u1ea5u tr\u00fac quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi <strong>ph\u00e2n lo\u1ea1i t\u1eeb th\u1ef1c ph\u1ea9m<\/strong>, ch\u00fang t\u00f4i nghi\u00eam ng\u1eb7t s\u1eed d\u1ee5ng <strong>v\u1ecf b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 316L<\/strong>. V\u1eadt li\u1ec7u n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m corrosion v\u00e0 v\u1ec7 sinh v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi th\u00e9p 304 ti\u00eau chu\u1ea9n. H\u01a1n n\u1eefa, quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng h\u00e0n laser ti\u00ean ti\u1ebfn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c thanh ho\u00e0n to\u00e0n ch\u1ed1ng n\u01b0\u1edbc v\u00e0 li\u1ec1n m\u1ea1ch. \u0110i\u1ec1u n\u00e0y ng\u0103n n\u01b0\u1edbc l\u1ecdt v\u00e0o v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c khe h\u1edf n\u01a1i vi khu\u1ea9n c\u00f3 th\u1ec3 \u1ea9n n\u00e1u, \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n HACCP nghi\u00eam ng\u1eb7t cho <strong>lo\u1ea1i b\u1ecf \u00f4 nhi\u1ec5m s\u1eaft<\/strong> trong c\u00e1c d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m.<\/p>\n<div id=\"references\" class=\"min-w-0 scroll-mt-8 overflow-hidden\">\n<div class=\"text-[16px]\"><\/div>\n<div class=\"flex flex-col gap-2 text-sm leading-relaxed\">\n<div class=\"break-words text-[1em] leading-7\"><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch s\u1eed d\u1ee5ng thanh t\u1eeb t\u00ednh v\u1edbi nh\u1eefng insight v\u1ec1 l\u1ecdc, k\u1ebft c\u1ea5u, c\u1ea3m bi\u1ebfn v\u00e0 c\u00e1ch thanh t\u1eeb t\u00ednh t\u1eeb t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u00f4ng nghi\u1ec7p<\/p>","protected":false},"author":1,"featured_media":3655,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[37],"tags":[],"class_list":["post-3652","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnetic-separator"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/01\/Magnetic-bar.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3652","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=3652"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3652\/revisions"}],"predecessor-version":[{"id":3657,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3652\/revisions\/3657"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3655"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}