{"id":3204,"date":"2025-10-17T05:03:35","date_gmt":"2025-10-17T05:03:35","guid":{"rendered":"https:\/\/nbaem.com\/?p=3204"},"modified":"2025-10-17T05:47:19","modified_gmt":"2025-10-17T05:47:19","slug":"what-is-a-ferrite-ring-magnet-used-for","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/what-is-a-ferrite-ring-magnet-used-for\/","title":{"rendered":"Magnet v\u00f2ng ferrite d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh v\u00e0 l\u1ee3i \u00edch"},"content":{"rendered":"<p>B\u1ea1n c\u00f3 t\u00f2 m\u00f2 v\u1ec1 <strong>\u1ee9ng d\u1ee5ng c\u1ee7a nam ch\u00e2m v\u00f2ng ferrite<\/strong> v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i xu\u1ea5t hi\u1ec7n trong r\u1ea5t nhi\u1ec1u d\u1ef1 \u00e1n nh\u01b0 v\u1eady? D\u00f9 b\u1ea1n \u0111ang x\u1eed l\u00fd c\u00e1c v\u1ea5n \u0111\u1ec1 \u00e2m thanh, x\u00e2y d\u1ef1ng \u0111\u1ed9ng c\u01a1 hay ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eed, nam ch\u00e2m nh\u1ecf b\u00e9 nh\u01b0ng m\u1ea1nh m\u1ebd n\u00e0y th\u01b0\u1eddng gi\u1eef vai tr\u00f2 then ch\u1ed1t. Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a <strong>nam ch\u00e2m v\u00f2ng ferrite<\/strong>\u2014t\u1eeb vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1ed9 r\u00f5 c\u1ee7a loa \u0111\u1ebfn gi\u1ea3m nhi\u1ec5u EMI\u2014v\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e1c k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi \u0111am m\u00ea. S\u1eb5n s\u00e0ng \u0111\u1ec3 kh\u00e1m ph\u00e1 ti\u1ec1m n\u0103ng c\u1ee7a nh\u1eefng nam ch\u00e2m ti\u1ebft ki\u1ec7m chi ph\u00ed, ch\u1ed1ng \u0103n m\u00f2n n\u00e0y ch\u01b0a? H\u00e3y b\u1eaft \u0111\u1ea7u n\u00e0o!<\/p>\n<div id=\"attachment_650\" style=\"width: 610px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-650\" class=\"size-full wp-image-650\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet.png\" alt=\"nam ch\u00e2m v\u00f2ng ferrite\" width=\"600\" height=\"241\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet-200x80.png 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet-300x121.png 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet-400x161.png 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet.png 600w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-650\" class=\"wp-caption-text\">nam ch\u00e2m v\u00f2ng ferrite<\/p><\/div>\n<h2>\u0110i\u1ec1u g\u00ec l\u00e0m cho nam ch\u00e2m v\u00f2ng ferrite tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t<\/h2>\n<p>Nam ch\u00e2m v\u00f2ng ferrite n\u1ed5i b\u1eadt nh\u1edd th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng \u0111\u1eb7c tr\u01b0ng. \u0110\u01b0\u1ee3c l\u00e0m ch\u1ee7 y\u1ebfu t\u1eeb oxit s\u1eaft pha tr\u1ed9n v\u1edbi carbonate strontium ho\u1eb7c barium, nh\u1eefng nam ch\u00e2m n\u00e0y thu\u1ed9c lo\u1ea1i nam ch\u00e2m g\u1ed1m. Th\u00e0nh ph\u1ea7n n\u00e0y mang l\u1ea1i c\u1ea5u tr\u00fac c\u1ee9ng, gi\u00f2n trong khi gi\u1eef chi ph\u00ed s\u1ea3n xu\u1ea5t th\u1ea5p.<\/p>\n<h3>C\u00e1c \u0111\u1eb7c t\u00ednh v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/strong>: Trung b\u00ecnh so v\u1edbi nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm, th\u01b0\u1eddng c\u00f3 s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a kho\u1ea3ng 3.5 MGOe.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong>: T\u1ef1 nhi\u00ean ch\u1ed1ng r\u1ec9 s\u00e9t v\u00e0 oxy h\u00f3a, l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9<\/strong>: C\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 250\u00b0C m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t t\u1eeb \u0111\u00e1ng k\u1ec3.<\/li>\n<li><strong>H\u00ecnh d\u1ea1ng v\u00e0 t\u1eeb t\u00ednh<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o d\u1ea1ng v\u00f2ng ho\u1eb7c h\u00ecnh toroidal v\u1edbi t\u1eeb t\u00ednh theo tr\u1ee5c ho\u1eb7c theo b\u00e1n k\u00ednh cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1eb7c bi\u1ec7t.<\/li>\n<\/ul>\n<h3>\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h3>\n<p><strong>\u01afu \u0111i\u1ec3m<\/strong><\/p>\n<ul>\n<li>L\u1ef1a ch\u1ecdn thay th\u1ebf gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng cho nam ch\u00e2m neodymium, mang l\u1ea1i gi\u00e1 tr\u1ecb t\u1ed1t cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng nghi\u1ec7p.<\/li>\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi c\u00f3 ngh\u0129a l\u00e0 kh\u00f4ng c\u1ea7n l\u1edbp ph\u1ee7 b\u1ed5 sung.<\/li>\n<li>Hi\u1ec7u su\u1ea5t t\u1eeb \u1ed5n \u0111\u1ecbnh trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng.<\/li>\n<li>D\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u00ecnh th\u00e0nh d\u1ea1ng v\u00f2ng ph\u00f9 h\u1ee3p cho cu\u1ed9n d\u00e2y v\u00e0 c\u1ea3m \u1ee9ng.<\/li>\n<\/ul>\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/strong><\/p>\n<ul>\n<li>S\u1ee9c m\u1ea1nh t\u1eeb th\u1ea5p h\u01a1n gi\u1edbi h\u1ea1n s\u1eed d\u1ee5ng trong c\u00e1c \u0111\u1ed9ng c\u01a1 hi\u1ec7u su\u1ea5t cao ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf g\u1ecdn.<\/li>\n<li>T\u00ednh gi\u00f2n khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb n\u1ee9t ho\u1eb7c v\u1ee1 v\u1ee5n n\u1ebfu x\u1eed l\u00fd kh\u00f4ng c\u1ea9n th\u1eadn.<\/li>\n<li>\u00cdt hi\u1ec7u qu\u1ea3 trong c\u00e1c \u1ee9ng d\u1ee5ng thu nh\u1ecf \u0111\u00f2i h\u1ecfi tr\u01b0\u1eddng t\u1eeb m\u1ea1nh.<\/li>\n<\/ul>\n<p>S\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u qu\u1ea3 chi ph\u00ed, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n khi\u1ebfn nam ch\u00e2m v\u00f2ng ferrite tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 ti\u00eau d\u00f9ng, n\u01a1i c\u00f4ng su\u1ea5t t\u1eeb tr\u01b0\u1eddng v\u1eeba ph\u1ea3i l\u00e0 \u0111\u1ee7. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m v\u0129nh c\u1eedu bao g\u1ed3m ferrite, h\u00e3y xem x\u00e9t c\u00e1c <a href=\"https:\/\/nbaem.com\/vi\/overview-for-types-of-magnets\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #ff6600;\"><strong>t\u1ed5ng quan v\u1ec1 c\u00e1c lo\u1ea1i nam ch\u00e2m<\/strong><\/span><\/a><span style=\"color: #ff6600;\"><strong>.<\/strong><\/span><\/p>\n<h2>C\u00e1c \u1ee8ng D\u1ee5ng Ch\u00ednh N\u01a1i Nam Ch\u00e2m V\u00f2ng Ferrite T\u1ecfa S\u00e1ng Trong S\u1eed D\u1ee5ng H\u00e0ng Ng\u00e0y v\u00e0 C\u00f4ng Nghi\u1ec7p<\/h2>\n<p>&nbsp;<\/p>\n<p>Nam ch\u00e2m v\u00f2ng ferrite r\u1ea5t \u0111a d\u1ee5ng v\u00e0 xu\u1ea5t hi\u1ec7n \u1edf nhi\u1ec1u n\u01a1i, c\u1ea3 trong gia \u0111\u00ecnh l\u1eabn trong ng\u00e0nh c\u00f4ng nghi\u1ec7p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t c\u00e1i nh\u00ecn nhanh v\u1ec1 n\u01a1i ch\u00fang th\u1ef1c s\u1ef1 n\u1ed5i b\u1eadt:<\/p>\n<h3>\u00c2m Thanh v\u00e0 \u00c2m H\u1ecdc<\/h3>\n<p>Nh\u1eefng nam ch\u00e2m n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u00f5i nam ch\u00e2m loa trong m\u1ecdi th\u1ee9 t\u1eeb h\u1ec7 th\u1ed1ng \u00e2m thanh gia \u0111\u00ecnh \u0111\u1ebfn loa \u00f4 t\u00f4. Hi\u1ec7u su\u1ea5t t\u1eeb tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh v\u00e0 chi ph\u00ed ph\u1ea3i ch\u0103ng khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o \u0111\u1ec3 ph\u00e1t ra \u00e2m thanh r\u00f5 r\u00e0ng m\u00e0 kh\u00f4ng t\u1ed1n k\u00e9m.<\/p>\n<h3>\u0110\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/h3>\n<p>Nam ch\u00e2m v\u00f2ng ferrite ph\u1ed5 bi\u1ebfn trong c\u00e1c \u0111\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 m\u00e1y ph\u00e1t nh\u1ecf v\u00ec ch\u00fang ch\u1ecbu nhi\u1ec7t t\u1ed1t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Ch\u00fang cung c\u1ea5p l\u1ef1c t\u1eeb \u1ed5n \u0111\u1ecbnh, gi\u00fap \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru v\u00e0 hi\u1ec7u qu\u1ea3 theo th\u1eddi gian.<\/p>\n<h3>H\u1ec7 Th\u1ed1ng G\u1eafn Gi\u1eef v\u00e0 K\u1eb9p Ch\u1eb7t<\/h3>\n<p>Trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, \u0111\u00e2y l\u00e0 nh\u1eefng nam ch\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u0111\u1ec3 gi\u1eef v\u00e0 k\u1eb9p ch\u1eb7t. V\u00ec ch\u00fang ch\u1ed1ng \u0103n m\u00f2n v\u00e0 b\u1ec1n b\u1ec9, ch\u00fang ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong c\u00e1c d\u1ee5ng c\u1ee5, thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh v\u00e0 m\u00e1y m\u00f3c c\u1ea7n gi\u1eef ch\u1eb7t, \u1ed5n \u0111\u1ecbnh.<\/p>\n<h3>\u1ee8ng Ph\u00f3 Ch\u1ed1ng Nhi\u1ec5u \u0110i\u1ec7n T\u1eeb (EMI)<\/h3>\n<p>N\u1ebfu b\u1ea1n t\u1eebng g\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1ec1 EMI, c\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n ferrite l\u1ecdc nhi\u1ec5u ho\u1eb7c chokes ch\u1ed1ng EMI. Nam ch\u00e2m v\u00f2ng ferrite gi\u00fap gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eed kh\u00f4ng mong mu\u1ed1n trong c\u00e1p v\u00e0 m\u1ea1ch, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n<h3>C\u1ea3m bi\u1ebfn v\u00e0 C\u00f4ng ngh\u1ec7 Chuy\u00ean D\u1ee5ng<\/h3>\n<p>Nam ch\u00e2m v\u00f2ng ferrite \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng nh\u1edd v\u00e0o tr\u01b0\u1eddng t\u1eeb t\u00ednh d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c v\u00e0 \u0111\u1ed9 b\u1ec1n. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m m\u1ecdi th\u1ee9 t\u1eeb c\u1ea3m bi\u1ebfn t\u1eeb \u0111\u1ebfn m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb y t\u1ebf.<\/p>\n<h3>Nghi\u00ean C\u1ee9u Tr\u01b0\u1eddng H\u1ee3p<\/h3>\n<p>H\u00e3y l\u1ea5y v\u00ed d\u1ee5 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam \u0111\u00e3 chuy\u1ec3n sang s\u1eed d\u1ee5ng nam ch\u00e2m v\u00f2ng ferrite trong d\u00f2ng \u0111\u1ed9ng c\u01a1 c\u1ee7a h\u1ecd. H\u1ecd nh\u1eadn th\u1ea5y tu\u1ed5i th\u1ecd \u0111\u1ed9ng c\u01a1 t\u0103ng l\u00ean v\u00e0 gi\u1ea3m chi ph\u00ed so v\u1edbi c\u00e1c lo\u1ea1i nam ch\u00e2m hi\u1ebfm \u0111\u1ea5t \u0111\u1eaft ti\u1ec1n h\u01a1n, ch\u1ee9ng t\u1ecf ferrite l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng minh khi hi\u1ec7u su\u1ea5t g\u1eb7p h\u1ea1n ch\u1ebf v\u1ec1 ng\u00e2n s\u00e1ch.<\/p>\n<p>T\u00f3m l\u1ea1i, nam ch\u00e2m v\u00f2ng ferrite c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed, \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn v\u1eefng ch\u1eafc trong nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng nghi\u1ec7p ngay t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2>C\u00e1ch Ch\u1ecdn L\u1ef1a v\u00e0 \u1ee8ng D\u1ee5ng Nam Ch\u00e2m V\u00f2ng Ferrite \u0111\u1ec3 \u0110\u1ea1t Hi\u1ec7u Qu\u1ea3 T\u1ed1i \u01afu<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/10\/Ferrite_Ring_Magnets_Selection_Guide_byViXHVNF.webp\" alt=\"H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn nam ch\u00e2m v\u00f2ng ferrite\" \/><\/p>\n<p>Ch\u1ecdn \u0111\u00fang k\u00edch th\u01b0\u1edbc nam ch\u00e2m v\u00f2ng ferrite b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p. Ch\u1ecdn k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb ho\u1eb7c \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n m\u00e0 kh\u00f4ng g\u00e2y \u00e9p bu\u1ed9c. Ch\u00fa \u00fd \u0111\u1ebfn \u0111\u01b0\u1eddng k\u00ednh trong, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u1ed9 d\u00e0y c\u1ee7a v\u00f2ng \u2013 t\u1ea5t c\u1ea3 \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng v\u00e0 kh\u1ea3 n\u0103ng ph\u00f9 h\u1ee3p. Nam ch\u00e2m qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 kh\u0103n trong l\u1eafp \u0111\u1eb7t ho\u1eb7c gi\u1ea3m hi\u1ec7u qu\u1ea3.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o l\u1eafp \u0111\u1eb7t nhanh \u0111\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a nam ch\u00e2m v\u00f2ng ferrite c\u1ee7a b\u1ea1n:<\/p>\n<ul>\n<li><strong>C\u0103n ch\u1ec9nh h\u01b0\u1edbng t\u1eeb \u0111\u00fang:<\/strong> H\u1ea7u h\u1ebft nam ch\u00e2m v\u00f2ng ferrite s\u1eed d\u1ee5ng ph\u01b0\u01a1ng h\u01b0\u1edbng t\u1eeb tr\u1ee5c, v\u00ec v\u1eady h\u00e3y ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft l\u1eadp c\u1ee7a b\u1ea1n \u0111\u1ec3 tr\u00e1nh hi\u1ec7u su\u1ea5t y\u1ebfu.<\/li>\n<li><strong>Tr\u00e1nh l\u00e0m r\u01a1i ho\u1eb7c va \u0111\u1eadp:<\/strong> Nam ch\u00e2m ferrite l\u00e0 lo\u1ea1i ceramic v\u00e0 d\u1ec5 v\u1ee1; x\u1eed l\u00fd th\u00f4 s\u01a1 c\u00f3 th\u1ec3 g\u00e2y n\u1ee9t.<\/li>\n<li><strong>S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t ph\u00f9 h\u1ee3p:<\/strong> An to\u00e0n nam ch\u00e2m m\u00e0 kh\u00f4ng si\u1ebft qu\u00e1 ch\u1eb7t \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng.<\/li>\n<li><strong>Tr\u00e1nh xa m\u1ea3nh kim lo\u1ea1i v\u1ee5n:<\/strong> B\u1ee5i ho\u1eb7c m\u1ea3nh v\u1ee5n c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng t\u1eeb t\u00ednh.<\/li>\n<\/ul>\n<p>Ch\u00fa \u00fd \u0111\u1ebfn nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u01b0:<\/p>\n<ul>\n<li>Ch\u1ecdn nam ch\u00e2m c\u00f3 c\u1ea5p \u0111\u1ed9 qu\u00e1 th\u1ea5p, d\u1eabn \u0111\u1ebfn l\u1ef1c t\u1eeb y\u1ebfu.<\/li>\n<li>B\u1ecf qua c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 \u0111\u1ed9 \u1ea9m, m\u1eb7c d\u00f9 nam ch\u00e2m ferrite th\u01b0\u1eddng ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n<li>B\u1ecf qua vi\u1ec7c c\u1ea7n thi\u1ebft c\u1ee7a vi\u1ec7c gi\u1ea3m nhi\u1ec5u EMI n\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n li\u00ean quan \u0111\u1ebfn thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m v\u1edbi ti\u1ebfng \u1ed3n.<\/li>\n<\/ul>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn c\u1ee7a b\u1ea1n:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>Nam ch\u00e2m v\u00f2ng ferrite<\/th>\n<th>C\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf (v\u00ed d\u1ee5, Neodymium)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ed9 m\u1ea1nh t\u1eeb t\u00ednh<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Gi\u00e1 th\u00e0nh<\/td>\n<td>Ph\u00f9 h\u1ee3p v\u1edbi ng\u00e2n s\u00e1ch<\/td>\n<td>\u0110\u1eaft h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ed1ng \u0103n m\u00f2n<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>Th\u01b0\u1eddng c\u1ea7n l\u1edbp ph\u1ee7<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/td>\n<td>T\u1ed1t<\/td>\n<td>Thay \u0111\u1ed5i, th\u01b0\u1eddng th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 gi\u00f2n<\/td>\n<td>Cao<\/td>\n<td>\u00cdt d\u1ec5 v\u1ee1 h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 bi\u1ebft chi ti\u1ebft v\u1ec1 c\u1ea5p \u0111\u1ed9 nam ch\u00e2m v\u00e0 l\u1ef1c k\u00e9o, h\u00e3y xem <a href=\"https:\/\/nbaem.com\/vi\/magnet-grades-pull-force-gauss-magnet-strength-and-n-numbers\/\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #ff6600;\">c\u1ea5p \u0111\u1ed9 nam ch\u00e2m v\u00e0 l\u1ef1c k\u00e9o<\/span><\/strong><\/a>. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t ph\u00f9 h\u1ee3p gi\u00fap b\u1ea1n \u0111\u1ea1t hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady, hi\u1ec7u qu\u1ea3 trong c\u00e1c \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, h\u1ec7 th\u1ed1ng loa ho\u1eb7c thi\u1ebft b\u1ecb gi\u1ea3m nhi\u1ec5u EMI.<\/p>\n<h2>Ngu\u1ed3n cung c\u1ea5p nam ch\u00e2m v\u00f2ng ferrite ch\u1ea5t l\u01b0\u1ee3ng cao T\u1ea1i sao ch\u1ecdn NBAEM<\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c mua nam ch\u00e2m v\u00f2ng ferrite, ch\u1ea5t l\u01b0\u1ee3ng r\u1ea5t quan tr\u1ecdng\u2014\u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi kh\u00e1ch h\u00e0ng Vi\u1ec7t Nam mong \u0111\u1ee3i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh. NBAEM n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady v\u00ec h\u1ecd cung c\u1ea5p nam ch\u00e2m v\u00f2ng ceramic ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t. Nam ch\u00e2m c\u1ee7a h\u1ecd c\u00f3 \u0111\u1ed9 m\u1ea1nh t\u1eeb tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, l\u00e0m cho ch\u00fang ph\u00f9 h\u1ee3p cho nam ch\u00e2m gi\u1eef c\u00f4ng nghi\u1ec7p, l\u00f5i nam ch\u00e2m loa, v\u00e0 b\u1ed9 l\u1ecdc EMI.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao NBAEM l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng minh:<\/p>\n<ul>\n<li><strong>Ch\u1ea5t li\u1ec7u cao c\u1ea5p<\/strong>: NBAEM s\u1eed d\u1ee5ng h\u1ee3p ch\u1ea5t ferrite cao c\u1ea5p mang l\u1ea1i \u0111\u1eb7c t\u00ednh t\u1eeb tr\u01b0\u1eddng m\u1ea1nh m\u1ebd v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><strong>Nhi\u1ec1u l\u1ef1a ch\u1ecdn<\/strong>: T\u1eeb c\u00e1c l\u1ef1a ch\u1ecdn ferrite gi\u00e1 r\u1ebb \u0111\u1ebfn v\u00f2ng nam ch\u00e2m tr\u1ee5c t\u00f9y ch\u1ec9nh, h\u1ecd ph\u1ee5c v\u1ee5 nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/li>\n<li><strong>Chu\u1ed7i cung \u1ee9ng \u0111\u00e1ng tin c\u1eady<\/strong>: Giao h\u00e0ng nhanh ch\u00f3ng v\u00e0 giao ti\u1ebfp r\u00f5 r\u00e0ng gi\u00fap doanh nghi\u1ec7p Vi\u1ec7t Nam gi\u1eef ti\u1ebfn \u0111\u1ed9 d\u1ef1 \u00e1n.<\/li>\n<li><strong>Gi\u00e1 c\u1ea3 c\u1ea1nh tranh<\/strong>: \u0110\u1ed1i v\u1edbi c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p mu\u1ed1n ki\u1ec3m so\u00e1t chi ph\u00ed m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t, NBAEM mang l\u1ea1i gi\u00e1 tr\u1ecb t\u1ed1t.<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/strong>: \u0110\u1ed9i ng\u0169 c\u1ee7a h\u1ecd h\u1ed7 tr\u1ee3 v\u1ec1 k\u00edch th\u01b0\u1edbc, t\u01b0 v\u1ea5n l\u1eafp \u0111\u1eb7t v\u00e0 ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<p>Ch\u1ecdn NBAEM ngh\u0129a l\u00e0 b\u1ea1n \u0111ang s\u1edf h\u1eefu nam ch\u00e2m v\u00f2ng ferrite c\u00f3 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p c\u1ee7a Vi\u1ec7t Nam, v\u00e0 \u0111\u1ebfn t\u1eeb nh\u00e0 cung c\u1ea5p hi\u1ec3u r\u00f5 nhu c\u1ea7u c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng nam ch\u00e2m ferrite \u0111a d\u1ea1ng.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p Gi\u1ea3i \u0111\u00e1p c\u00e1c c\u00e2u h\u1ecfi h\u00e0ng \u0111\u1ea7u v\u1ec1 nam ch\u00e2m v\u00f2ng ferrite<\/h2>\n<h3>Nam ch\u00e2m v\u00f2ng ferrite d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h3>\n<p>Nam ch\u00e2m v\u00f2ng ferrite ch\u1ee7 y\u1ebfu d\u00f9ng cho \u0111\u1ed9ng c\u01a1, loa, b\u1ed9 l\u1ecdc EMI, v\u00e0 gi\u1eef ho\u1eb7c k\u1eb9p. H\u00ecnh d\u1ea1ng v\u00f2ng c\u1ee7a ch\u00fang l\u00e0m cho ch\u00fang l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n d\u00f2ng t\u1eeb xuy\u00ean qua trung t\u00e2m r\u1ed7ng.<\/p>\n<h3>Nam ch\u00e2m v\u00f2ng ferrite c\u00f3 ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng?<\/h3>\n<p>C\u00f3, nam ch\u00e2m ferrite, c\u00f2n g\u1ecdi l\u00e0 nam ch\u00e2m ceramic, t\u1ef1 nhi\u00ean ch\u1ed1ng \u0103n m\u00f2n, ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng nghi\u1ec7p m\u00e0 kh\u00f4ng c\u1ea7n l\u1edbp ph\u1ee7 b\u1ed5 sung.<\/p>\n<h3>Nam ch\u00e2m v\u00f2ng ferrite c\u00f3 th\u1ec3 thay th\u1ebf nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm kh\u00f4ng?<\/h3>\n<p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, khi chi ph\u00ed l\u00e0 m\u1ed1i quan t\u00e2m v\u00e0 \u0111\u1ed9 m\u1ea1nh c\u1ef1c cao kh\u00f4ng c\u1ea7n thi\u1ebft. Nam ch\u00e2m ferrite l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch, nh\u01b0ng th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 m\u1ea1nh t\u1eeb th\u1ea5p h\u01a1n nam ch\u00e2m neodymium.<\/p>\n<h3>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p cho nam ch\u00e2m v\u00f2ng ferrite?<\/h3>\n<p>Xem x\u00e9t c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n, c\u00e2n nh\u1eafc \u0111\u01b0\u1eddng k\u00ednh trong v\u00e0 ngo\u00e0i, \u0111\u1ed9 d\u00e0y, v\u00e0 l\u1ef1c h\u00fat t\u1eeb tr\u01b0\u1eddng. K\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 m\u1ea1nh t\u1eeb v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u h\u00ecnh c\u01a1 kh\u00ed c\u1ee7a b\u1ea1n.<\/p>\n<h3>Nam ch\u00e2m v\u00f2ng ferrite c\u00f3 t\u1ed1t cho b\u1ed9 l\u1ecdc EMI kh\u00f4ng?<\/h3>\n<p>Ch\u1eafc ch\u1eafn r\u1ed3i. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 l\u00f5i ferrite l\u1ecdc nhi\u1ec5u trong c\u00e1p v\u00e0 c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed \u0111\u1ec3 ch\u1eb7n nhi\u1ec5u \u0111i\u1ec7n t\u1eeb kh\u00f4ng mong mu\u1ed1n.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nam ch\u00e2m v\u00f2ng ferrite trong \u0111\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu kh\u00f4ng?<\/h3>\n<p>C\u00f3. Ch\u00fang ph\u1ed5 bi\u1ebfn trong \u0111\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu v\u00ec d\u1ec5 s\u1ea3n xu\u1ea5t, \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 mua nam ch\u00e2m v\u00f2ng ferrite ch\u1ea5t l\u01b0\u1ee3ng \u1edf \u0111\u00e2u t\u1ea1i Vi\u1ec7t Nam?<\/h3>\n<p>T\u00ecm ki\u1ebfm c\u00e1c nh\u00e0 cung c\u1ea5p uy t\u00edn nh\u01b0 NBAEM chuy\u00ean v\u1ec1 nam ch\u00e2m ferrite c\u00f4ng nghi\u1ec7p v\u1edbi ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t v\u00e0 v\u1eadn chuy\u1ec3n nhanh trong n\u01b0\u1edbc.<\/p>\n<p>N\u1ebfu b\u1ea1n c\u00f3 th\u00eam c\u00e2u h\u1ecfi ho\u1eb7c mu\u1ed1n \u0111\u01b0\u1ee3c gi\u00fap ch\u1ecdn \u0111\u00fang lo\u1ea1i nam ch\u00e2m v\u00f2ng ferrite, \u0111\u1eebng ng\u1ea7n ng\u1ea1i li\u00ean h\u1ec7!<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00f4ng d\u1ee5ng c\u1ee7a nam ch\u00e2m v\u00f2ng ferrite bao g\u1ed3m \u00e2m thanh, \u0111\u1ed9ng c\u01a1, gi\u1ea3m nhi\u1ec5u EMI v\u00e0 t\u00ecm c\u00e1c nam ch\u00e2m v\u00f2ng ferrite ch\u1ea5t l\u01b0\u1ee3ng cao t\u1eeb NBAEM.<\/p>","protected":false},"author":1,"featured_media":650,"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-3204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/ferrite-ring-magnet.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3204","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=3204"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3204\/revisions"}],"predecessor-version":[{"id":3205,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3204\/revisions\/3205"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/650"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}