{"id":1487,"date":"2025-03-28T06:53:50","date_gmt":"2025-03-28T06:53:50","guid":{"rendered":"https:\/\/nbaem.com\/?p=1487"},"modified":"2025-03-28T06:53:50","modified_gmt":"2025-03-28T06:53:50","slug":"magnet-machining","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/magnet-machining\/","title":{"rendered":"Gia c\u00f4ng nam ch\u00e2m"},"content":{"rendered":"

Gia c\u00f4ng nam ch\u00e2m: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh nam ch\u00e2m ch\u00ednh x\u00e1c?<\/h1>\n

Nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 r\u1eb1ng nam ch\u00e2m ch\u1ec9 \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh m\u1ed9t l\u1ea7n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t\u2014nh\u01b0ng \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u01b0\u1eddng h\u1ee3p. H\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i nam ch\u00e2m, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i \u0111\u1ea5t hi\u1ebfm, \u0111\u1ec1u c\u1ea7n gia c\u00f4ng c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea1t k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 dung sai cu\u1ed1i c\u00f9ng.<\/p>\n

Gia c\u00f4ng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft v\u00ec t\u00ednh ch\u1ea5t c\u1ee9ng v\u00e0 gi\u00f2n c\u1ee7a ch\u00fang ng\u0103n c\u1ea3n vi\u1ec7c ch\u1ebf t\u1ea1o ra k\u00edch th\u01b0\u1edbc cu\u1ed1i c\u00f9ng trong m\u1ed9t l\u1ea7n. C\u1eaft, khoan v\u00e0 m\u00e0i l\u00e0 c\u00e1c b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/strong><\/p>\n

Ngay c\u1ea3 v\u1edbi c\u00e1c v\u1eadt li\u1ec7u nam ch\u00e2m m\u1ea1nh nh\u01b0 NdFeB v\u00e0 SmCo, vi\u1ec7c b\u1ecf qua gia c\u00f4ng l\u00e0 kh\u00f4ng th\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do\u2014v\u00e0 c\u00e1ch t\u00f4i ti\u1ebfp c\u1eadn v\u1edbi kh\u00e1ch h\u00e0ng trong ng\u00e0nh nam ch\u00e2m.<\/p>\n

Gia c\u00f4ng nam ch\u00e2m l\u00e0 g\u00ec?<\/h2>\n

Kh\u00f4ng th\u1ec3 b\u1ecf qua gia c\u00f4ng nam ch\u00e2m. H\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i nam ch\u00e2m kh\u00f4ng th\u1ec3 \u0111\u00fac ho\u1eb7c \u00e9p th\u00e0nh h\u00ecnh d\u1ea1ng cu\u1ed1i c\u00f9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i \u0111\u1ea5t hi\u1ebfm nung k\u1ebft.<\/p>\n

Gia c\u00f4ng nam ch\u00e2m \u0111\u1ec1 c\u1eadp \u0111\u1ebfn qu\u00e1 tr\u00ecnh ch\u1ec9nh s\u1eeda h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc v\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a nam ch\u00e2m b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0 c\u1eaft, m\u00e0i ho\u1eb7c khoan \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c.<\/strong>
\n

\"C\u1eaft

C\u1eaft d\u00e2y nhi\u1ec1u<\/p><\/div><\/p>\n

T\u1ea1i sao kh\u00f4ng th\u1ec3 b\u1ecf qua gia c\u00f4ng?<\/h3>\n

Nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm nh\u01b0 NdFeB nung k\u1ebft r\u1ea5t c\u1ee9ng nh\u01b0ng c\u0169ng gi\u00f2n. Trong qu\u00e1 tr\u00ecnh \u00e9p v\u00e0 nung k\u1ebft, ch\u00fang ta kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t h\u00ecnh d\u1ea1ng v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c cao. C\u00e1c kh\u1ed1i nam ch\u00e2m ra ngo\u00e0i th\u00f4, k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n v\u00e0 th\u01b0\u1eddng c\u00f3 khe h\u1edf dung sai.<\/p>\n

\u0110\u00e2y l\u00e0 n\u01a1i gia c\u00f4ng ph\u00e1t huy t\u00e1c d\u1ee5ng. N\u1ebfu kh\u00f4ng c\u00f3 n\u00f3, b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc ch\u1eb7t ch\u1ebd trong c\u00e1c ng\u00e0nh nh\u01b0 \u0111\u1ed9ng c\u01a1, c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf.<\/p>\n

C\u00e1c k\u1ef9 thu\u1eadt gia c\u00f4ng ch\u00ednh l\u00e0 g\u00ec?<\/h3>\n\n\n\n\n\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng<\/th>\nD\u1ee5ng c\u1ee5 s\u1eed d\u1ee5ng<\/th>\n\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n
C\u1eaft<\/td>\nL\u01b0\u1ee1i dao kim c\u01b0\u01a1ng\/CBN, m\u00e1y c\u01b0a d\u00e2y<\/td>\nGia c\u00f4ng c\u00e1c kh\u1ed1i l\u1edbn th\u00e0nh c\u00e1c kh\u1ed1i nh\u1ecf h\u01a1n<\/td>\n<\/tr>\n
Khoan<\/td>\nM\u0169i khoan kim c\u01b0\u01a1ng, laser, si\u00eau \u00e2m<\/td>\nT\u1ea1o l\u1ed7 trong nam ch\u00e2m v\u00f2ng\/ cung<\/td>\n<\/tr>\n
M\u00e0i<\/td>\nB\u00e1nh m\u00e0i nh\u1ef1a ho\u1eb7c kim lo\u1ea1i<\/td>\n\u0110\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u1eb3ng v\u00e0 ch\u00ednh x\u00e1c b\u1ec1 m\u1eb7t<\/td>\n<\/tr>\n
\u0110\u00e1nh b\u00f3ng b\u1eb1ng th\u00f9ng<\/td>\nM\u00e1y \u0111\u00e1nh b\u00f3ng \u0111\u1ec3 t\u1ea1o chamfer<\/td>\nL\u00e0m tr\u00f2n c\u1ea1nh \u0111\u1ec3 n\u00e2ng cao an to\u00e0n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p c\u00f3 vai tr\u00f2 ri\u00eang t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i v\u1eadt li\u1ec7u, \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c y\u00eau c\u1ea7u.<\/p>\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gia c\u00f4ng nam ch\u00e2m?<\/h2>\n

Gia c\u00f4ng nam ch\u00e2m kh\u00f4ng gi\u1ed1ng nh\u01b0 gia c\u00f4ng th\u00e9p ho\u1eb7c nh\u1ef1a. C\u1ea7n c\u1ea9n th\u1eadn h\u01a1n do \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u nam ch\u00e2m.<\/p>\n

Nam ch\u00e2m \u0111\u01b0\u1ee3c gia c\u00f4ng b\u1eb1ng c\u00e1c d\u1ee5ng c\u1ee5 nh\u01b0 l\u01b0\u1ee1i dao kim c\u01b0\u01a1ng ho\u1eb7c b\u00e1nh m\u00e0i. Ph\u01b0\u01a1ng ph\u00e1p ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i nam ch\u00e2m, h\u00ecnh d\u1ea1ng v\u00e0 \u1ee9ng d\u1ee5ng. \u0110\u1ed9 ch\u00ednh x\u00e1c v\u00e0 c\u1ea9n th\u1eadn l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/strong><\/p>\n

1. K\u1ef9 thu\u1eadt c\u1eaft<\/h3>\n

C\u1eaft b\u1eb1ng l\u01b0\u1ee1i dao<\/h4>\n

Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng l\u01b0\u1ee1i dao ph\u1ee7 kim c\u01b0\u01a1ng ho\u1eb7c CBN. \u0110\u1ed9 d\u00e0y, t\u1ed1c \u0111\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u c\u1ee7a l\u01b0\u1ee1i dao \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 dung sai cu\u1ed1i c\u00f9ng.<\/p>\n

C\u00e1c lo\u1ea1i ph\u1ee5:<\/strong><\/p>\n

    \n
  • C\u1eaft h\u00ecnh tr\u1ee5<\/strong>: Th\u01b0\u1eddng d\u00f9ng cho nam ch\u00e2m d\u1ea1ng \u0111\u0129a.<\/li>\n
  • C\u1eaft trong<\/strong>: D\u00f9ng \u0111\u1ec3 c\u1eaft l\u1ed7 ho\u1eb7c c\u00e1c ph\u1ea7n n\u1ed9i b\u1ed9.<\/li>\n<\/ul>\n

    C\u1eaft d\u00e2y v\u00e0 c\u1eaft laser<\/h4>\n

    C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u1ea1o h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p. EDM d\u00e2y v\u00e0 laser cho k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c, nh\u01b0ng ch\u1eadm h\u01a1n v\u00e0 \u0111\u1eaft h\u01a1n. T\u00f4i th\u01b0\u1eddng khuy\u00ean d\u00f9ng nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho c\u00e1c l\u00f4 nh\u1ecf ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n

    C\u1eaft b\u1eb1ng d\u00e2y c\u01b0a<\/h4>\n

    \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 c\u1eaft l\u00e1t m\u1ecfng ho\u1eb7c h\u00ecnh d\u1ea1ng tinh x\u1ea3o v\u1edbi thi\u1ec7t h\u1ea1i t\u1ed1i thi\u1ec3u.<\/p>\n

    2. K\u1ef9 thu\u1eadt khoan<\/h3>\n

    Nam ch\u00e2m c\u00f3 l\u1ed7 trong\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i v\u00f2ng v\u00e0 cung\u2014th\u01b0\u1eddng c\u1ea7n khoan sau khi nung k\u1ebft.<\/p>\n

    C\u00e1c lo\u1ea1i khoan:<\/strong><\/p>\n

      \n
    • Khoan r\u1eafn<\/strong>: Th\u1ef1c hi\u1ec7n b\u1eb1ng d\u1ee5ng c\u1ee5 kim c\u01b0\u01a1ng ho\u1eb7c laser. Th\u00edch h\u1ee3p cho c\u00e1c l\u1ed7 nh\u1ecf.<\/li>\n
    • Khoan r\u1ed7ng<\/strong>: D\u00f9ng khi l\u1ed7 l\u1edbn h\u01a1n 4mm. Ch\u00fang t\u00f4i c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng l\u00f5i c\u1ee7a l\u1ed7 \u0111\u1ec3 l\u00e0m c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c, n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u.<\/li>\n<\/ul>\n

      3. K\u1ef9 thu\u1eadt m\u00e0i<\/h3>\n

      B\u01b0\u1edbc n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u1eb3ng c\u1ee7a b\u1ec1 m\u1eb7t, \u0111\u1ed9 dung sai ch\u1eb7t ch\u1ebd v\u00e0 v\u1ebb ngo\u00e0i th\u1ea9m m\u1ef9.<\/p>\n

      C\u00e1c lo\u1ea1i m\u00e0i:<\/strong><\/p>\n

        \n
      • M\u00e0i tr\u1ee5<\/strong><\/li>\n
      • M\u00e0i trong<\/strong><\/li>\n
      • M\u00e0i m\u1eb7t<\/strong><\/li>\n
      • M\u00e0i sao ch\u00e9p<\/strong>: Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf b\u00e1nh m\u00e0i ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng vi\u1ec1n cu\u1ed1i c\u00f9ng.<\/li>\n<\/ul>\n

        \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft kh\u00e1ch h\u00e0ng c\u1ee7a t\u00f4i, m\u00e0i l\u00e0 b\u01b0\u1edbc gia c\u00f4ng ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u1eb7c bi\u1ec7t khi s\u1ea3n xu\u1ea5t nam ch\u00e2m cho \u0111\u1ed9ng c\u01a1 ho\u1eb7c c\u1ea3m bi\u1ebfn.<\/p>\n

        4. \u0110\u00e1nh b\u00f3ng \/ Gia c\u00f4ng c\u1ea1nh<\/h3>\n

        M\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng y\u00eau c\u1ea7u c\u00e1c c\u1ea1nh an to\u00e0n\u2014\u0111\u1eb7c bi\u1ec7t trong c\u00e1c b\u1ed9 l\u1eafp r\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u1eed l\u00fd. Vi\u1ec7c l\u00e0m tr\u00f2n gi\u00fap lo\u1ea1i b\u1ecf c\u00e1c c\u1ea1nh s\u1eafc, l\u00e0m cho vi\u1ec7c l\u1eafp r\u00e1p an to\u00e0n h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p h\u01a1n v\u1ec1 m\u1eb7t c\u00f4ng th\u00e1i h\u1ecdc.<\/p>\n

        S\u1ea3n xu\u1ea5t nam ch\u00e2m l\u00e0 g\u00ec?<\/h2>\n

        Nhi\u1ec1u ng\u01b0\u1eddi nh\u1ea7m l\u1eabn gi\u1eefa vi\u1ec7c ch\u1ebf t\u1ea1o nam ch\u00e2m v\u00e0 gia c\u00f4ng nam ch\u00e2m. Ch\u00fang l\u00e0 c\u00e1c b\u01b0\u1edbc kh\u00e1c nhau trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n

        S\u1ea3n xu\u1ea5t nam ch\u00e2m bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c giai \u0111o\u1ea1n t\u1eeb b\u1ed9t nguy\u00ean li\u1ec7u \u0111\u1ebfn th\u00e0nh ph\u1ea7n nam ch\u00e2m cu\u1ed1i c\u00f9ng, bao g\u1ed3m n\u00e9n, nung k\u1ebft, v\u00e0 \u0111\u00f4i khi gia c\u00f4ng.<\/strong>
        \n\"\"<\/p>\n

        C\u00e1c giai \u0111o\u1ea1n ch\u00ednh c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n\n\n\n\n\n\n\n
        Giai \u0111o\u1ea1n<\/th>\nM\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
        Chu\u1ea9n b\u1ecb b\u1ed9t<\/td>\nTr\u1ed9n c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm v\u00e0 nghi\u1ec1n th\u00e0nh b\u1ed9t m\u1ecbn<\/td>\n<\/tr>\n
        \u00c9p<\/td>\n\u00c9p b\u1ed9t d\u01b0\u1edbi tr\u01b0\u1eddng t\u1eeb<\/td>\n<\/tr>\n
        Thi\u00eau k\u1ebft<\/td>\nGia nhi\u1ec7t trong ch\u00e2n kh\u00f4ng ho\u1eb7c kh\u00ed tr\u01a1 \u0111\u1ec3 h\u00ecnh th\u00e0nh nam ch\u00e2m r\u1eafn<\/td>\n<\/tr>\n
        Gia c\u00f4ng<\/td>\nC\u1eaft, khoan, m\u00e0i th\u00e0nh h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cu\u1ed1i c\u00f9ng<\/td>\n<\/tr>\n
        L\u1edbp ph\u1ee7<\/td>\n\u00c1p d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 nh\u01b0 Ni, Zn ho\u1eb7c epoxy<\/td>\n<\/tr>\n
        Nam ch\u00e2m h\u00f3a<\/td>\nPh\u01a1i ph\u1ea7n \u0111\u00e3 ho\u00e0n thi\u1ec7n d\u01b0\u1edbi tr\u01b0\u1eddng t\u1eeb m\u1ea1nh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Gia c\u00f4ng x\u1ea3y ra sau khi nung k\u1ebft v\u00e0 tr\u01b0\u1edbc khi ph\u1ee7 l\u1edbp. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p gia c\u00f4ng ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng\u2014\u0111\u1eb7c bi\u1ec7t n\u1ebfu c\u00f3 l\u1edbp ph\u1ee7 nh\u01b0 Ni-Cu-Ni ho\u1eb7c epoxy. Gia c\u00f4ng kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t, d\u1eabn \u0111\u1ebfn k\u00e9m b\u00e1m d\u00ednh ho\u1eb7c \u0103n m\u00f2n.<\/p>\n

        Nam ch\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y m\u00f3c nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

        Nam ch\u00e2m gia c\u00f4ng l\u00e0 thi\u1ebft y\u1ebfu trong c\u00e1c m\u00e1y m\u00f3c hi\u1ec7n \u0111\u1ea1i. G\u1ea7n nh\u01b0 m\u1ecdi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n-mechanical \u0111\u1ec1u s\u1eed d\u1ee5ng ch\u00fang.<\/p>\n

        Nam ch\u00e2m trong m\u00e1y chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh chuy\u1ec3n \u0111\u1ed9ng, c\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed ho\u1eb7c gi\u1eef c\u00e1c th\u00e0nh ph\u1ea7n. Nam ch\u00e2m gia c\u00f4ng ch\u00ednh x\u00e1c gi\u00fap h\u1ec7 th\u1ed1ng nh\u1ecf g\u1ecdn, hi\u1ec7u su\u1ea5t cao.<\/strong>
        \n

        \"\u0111\u1ed9ng

        \u1ea2nh \u0111\u1ed9ng c\u01a1 kh\u00f4ng l\u00f5i t\u1eeb thi\u1ebft k\u1ebf c\u1ee7a Assun Motor<\/p><\/div><\/p>\n

        Nam ch\u00e2m gia c\u00f4ng \u0111\u1eb7t \u1edf \u0111\u00e2u?<\/h3>\n

        1. \u0110\u1ed9ng c\u01a1<\/h4>\n

        \u0110\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu c\u1ea7n nam ch\u00e2m c\u00f3 h\u00ecnh d\u1ea1ng ch\u00ednh x\u00e1c \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111\u1ed9ng h\u1ecdc c\u1ee7a rotor. H\u1ea7u h\u1ebft c\u00e1c rotor s\u1eed d\u1ee5ng nam ch\u00e2m cung, \u0111\u01b0\u1ee3c m\u00e0i v\u1edbi \u0111\u1ed9 dung sai ch\u1eb7t ch\u1ebd.<\/p>\n

        2. C\u1ea3m bi\u1ebfn<\/h4>\n

        C\u1ea3m bi\u1ebfn Hall-effect s\u1eed d\u1ee5ng nh\u1eefng nam ch\u00e2m nh\u1ecf b\u00e9 ph\u1ea3i v\u1eeba kh\u00edt trong v\u1ecf b\u1ecdc. Ch\u00eanh l\u1ec7ch ch\u1ec9 v\u00e0i micromet c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t.<\/p>\n

        3. Thi\u1ebft b\u1ecb y t\u1ebf<\/h4>\n

        M\u00e1y MRI, d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt v\u00e0 b\u01a1m s\u1eed d\u1ee5ng nam ch\u00e2m nh\u1ecf t\u00f9y ch\u1ec9nh. Nh\u1eefng nam ch\u00e2m n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c m\u00e0i v\u00e0 khoan ch\u00ednh x\u00e1c cao v\u00e0 kh\u00f4ng c\u00f3 s\u1ea1n.<\/p>\n

        4. H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 Robot<\/h4>\n

        \u1ee8ng d\u1ee5ng trong kh\u00f4ng gian v\u00e0 robot \u0111\u00f2i h\u1ecfi c\u00e1c b\u1ed9 nam ch\u00e2m nh\u1eb9 v\u00e0 m\u1ea1nh m\u1ebd. Ch\u00fang t\u00f4i gia c\u00f4ng theo \u0111\u00fang ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 an to\u00e0n.<\/p>\n

        C\u00e1c lo\u1ea1i nam ch\u00e2m c\u1ea7n xem x\u00e9t<\/h3>\n\n\n\n\n\n\n\n\n
        Lo\u1ea1i nam ch\u00e2m<\/th>\nNhu c\u1ea7u gia c\u00f4ng<\/th>\nGhi ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n
        NdFeB nung sintered<\/td>\nCao<\/td>\nR\u1ea5t gi\u00f2n, c\u1ea7n d\u1ee5ng c\u1ee5 kim c\u01b0\u01a1ng<\/td>\n<\/tr>\n
        SmCo<\/td>\nTrung b\u00ecnh \u0111\u1ebfn cao<\/td>\n\u1ed4n \u0111\u1ecbnh nh\u01b0ng c\u1ee9ng<\/td>\n<\/tr>\n
        Nam Ch\u00e2m Li\u00ean K\u1ebft<\/td>\nTh\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\nTh\u01b0\u1eddng g\u1ea7n d\u1ea1ng h\u00ecnh d\u1ea1ng cu\u1ed1i c\u00f9ng, \u00edt c\u1ea7n gia c\u00f4ng h\u01a1n<\/td>\n<\/tr>\n
        S\u1eaft ferrit<\/td>\nV\u1eeba ph\u1ea3i<\/td>\nChi ph\u00ed th\u1ea5p h\u01a1n, c\u00f3 th\u1ec3 gia c\u00f4ng b\u1eb1ng d\u1ee5ng c\u1ee5 ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Nam ch\u00e2m li\u00ean k\u1ebft, nh\u01b0 nam ch\u00e2m \u0111\u00fac phun, ch\u1ec9 c\u1ea7n c\u1eaft t\u1ec9a nh\u1ecf. Nh\u01b0ng nam ch\u00e2m \u0111\u00fac n\u00e9n v\u1eabn c\u1ea7n m\u00e0i, \u0111\u1eb7c bi\u1ec7t n\u1ebfu y\u00eau c\u1ea7u \u0111\u1ed9 cao ho\u1eb7c ph\u1eb3ng ch\u00ednh x\u00e1c.<\/p>\n

        K\u1ebft lu\u1eadn<\/h2>\n

        Gia c\u00f4ng nam ch\u00e2m l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 ph\u00f9 h\u1ee3p. N\u00f3 bi\u1ebfn c\u00e1c kh\u1ed1i nam ch\u00e2m th\u00f4 th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/p>","protected":false},"excerpt":{"rendered":"

        Gia c\u00f4ng nam ch\u00e2m: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh nam ch\u00e2m ch\u00ednh x\u00e1c? Nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 r\u1eb1ng nam ch\u00e2m ch\u1ec9 \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh m\u1ed9t l\u1ea7n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t\u2014nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng \u0111\u00fang. H\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i nam ch\u00e2m, \u0111\u1eb7c bi\u1ec7t l\u00e0 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm, \u0111\u1ec1u c\u1ea7n gia c\u00f4ng c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea1t k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 dung sai cu\u1ed1i c\u00f9ng. Gia c\u00f4ng nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft v\u00ec t\u00ednh ch\u1ea5t c\u1ee9ng v\u00e0 gi\u00f2n c\u1ee7a ch\u00fang ng\u0103n c\u1ea3n [\u2026]<\/p>","protected":false},"author":1,"featured_media":1489,"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-1487","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/03\/Multiple-Diamond-Wire-Saw-scaled.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1487","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=1487"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1487\/revisions"}],"predecessor-version":[{"id":1492,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1487\/revisions\/1492"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1489"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}