{"id":1478,"date":"2025-03-21T03:13:13","date_gmt":"2025-03-21T03:13:13","guid":{"rendered":"https:\/\/nbaem.com\/?p=1478"},"modified":"2025-03-21T03:13:13","modified_gmt":"2025-03-21T03:13:13","slug":"quality-of-neodymium-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/quality-of-neodymium-magnets\/","title":{"rendered":"Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a nam ch\u00e2m Neodymium"},"content":{"rendered":"

Nam ch\u00e2m Neodymium<\/span><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau v\u00ec ch\u00fang m\u1ea1nh, nh\u1ecf g\u1ecdn v\u00e0 r\u1ebb ti\u1ec1n. Nh\u01b0ng \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o ch\u00fang l\u00e0 nam ch\u00e2m t\u1ed1t cho c\u00e1c s\u1ea3n ph\u1ea9m b\u1ea1n l\u00e0m ra. C\u00f3 m\u1ed9t v\u00e0i \u0111i\u1ec1u b\u1ea1n c\u1ea7n ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 m\u1ed9t nam ch\u00e2m neodymium ch\u1ea5t l\u01b0\u1ee3ng. B\u1ea1n c\u1ea7n xem x\u00e9t \u0111\u1eb7c \u0111i\u1ec3m hi\u1ec7u su\u1ea5t, ngo\u1ea1i h\u00ecnh v\u00e0 c\u00e1ch ch\u00fang \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o.<\/strong><\/p>\n

\"v\u1eadt<\/strong><\/p>\n

Hi\u1ec7u su\u1ea5t<\/span><\/strong><\/h2>\n

\u0110i\u1ec1u \u0111\u1ea7u ti\u00ean b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a nam ch\u00e2m neodymium. C\u00f3 nhi\u1ec1u lo\u1ea1i c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau c\u1ee7a nam ch\u00e2m neodymium. C\u00e1c c\u1ea5p \u0111\u1ed9 dao \u0111\u1ed9ng t\u1eeb N35 \u0111\u1ebfn N52. S\u1ed1 c\u00e0ng cao, nam ch\u00e2m c\u00e0ng m\u1ea1nh v\u00e0 gi\u00e1 th\u00e0nh c\u00e0ng \u0111\u1eaft. Tuy nhi\u00ean, ch\u1ec9 v\u00ec b\u1ea1n c\u00f3 m\u1ed9t nam ch\u00e2m c\u1ea5p cao h\u01a1n kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 n\u00f3 ph\u00f9 h\u1ee3p h\u01a1n cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. B\u1ea1n c\u1ea7n bi\u1ebft m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng nam ch\u00e2m c\u1ee7a m\u00ecnh l\u00e0 g\u00ec. N\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t nam ch\u00e2m c\u00f3 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao. N\u1ebfu nam ch\u00e2m c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t nam ch\u00e2m nh\u1ecf h\u01a1n v\u00e0 c\u00f3 tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n.<\/strong><\/p>\n

M\u1ed9t b\u00e0i ki\u1ec3m tra b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n l\u00e0 s\u1eed d\u1ee5ng m\u00e1y \u0111o Gauss \u0111\u1ec3 \u0111o \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m. So s\u00e1nh \u0111\u1ed9 m\u1ea1nh b\u1ea1n \u0111o \u0111\u01b0\u1ee3c v\u1edbi d\u1eef li\u1ec7u m\u1eabu ti\u00eau chu\u1ea9n do nh\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m cung c\u1ea5p.<\/strong><\/p>\n

\u0110i\u1ec1u ti\u1ebfp theo b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u c\u1ee7a nam ch\u00e2m. T\u1ef7 l\u1ec7 c\u1ee7a neodymium, s\u1eaft v\u00e0 boron trong nam ch\u00e2m quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh c\u1ee7a tr\u01b0\u1eddng t\u1eeb c\u1ee7a n\u00f3. C\u00e1ch nam ch\u00e2m \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a n\u00f3. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ch\u1ebf t\u1ea1o nam ch\u00e2m neodymium l\u00e0 nung ch\u1ea3y, li\u00ean k\u1ebft v\u00e0 h\u1ee3p kim. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 m\u1ed9t nam ch\u00e2m neodymium t\u1ed1t, b\u1ea1n n\u00ean mua nam ch\u00e2m t\u1eeb m\u1ed9t c\u00f4ng ty c\u00f3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t.<\/strong><\/p>\n

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Ngo\u1ea1i h\u00ecnh<\/strong><\/span><\/h2>\n

\u0110i\u1ec1u ti\u1ebfp theo b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 ngo\u1ea1i h\u00ecnh c\u1ee7a nam ch\u00e2m neodymium. B\u1ea1n mu\u1ed1n ki\u1ec3m tra xem c\u00f3 n\u1ee9t, v\u1ebft s\u1ee9t ho\u1eb7c v\u1ebft tr\u1ea7y x\u01b0\u1edbc n\u00e0o kh\u00f4ng. Nam ch\u00e2m \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1eb1ng m\u1eaft \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 l\u1ed7i n\u00e0o tr\u00ean b\u1ec1 m\u1eb7t ho\u1eb7c l\u1edbp ph\u1ee7. Ch\u00fang \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a l\u1edbp m\u1ea1. Ch\u00fang \u0111\u01b0\u1ee3c ki\u1ec3m tra kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. H\u1ecd \u0111\u1eb7t nam ch\u00e2m trong bu\u1ed3ng phun mu\u1ed1i v\u00e0 bu\u1ed3ng \u0111\u1ed9 \u1ea9m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 s\u1ebd b\u00e1m ch\u1eafc tr\u00ean nam ch\u00e2m.<\/strong><\/p>\n

B\u1ea1n c\u0169ng mu\u1ed1n ki\u1ec3m tra k\u00edch th\u01b0\u1edbc c\u1ee7a nam ch\u00e2m. K\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a nam ch\u00e2m r\u1ea5t quan tr\u1ecdng v\u00ec b\u1ea1n mu\u1ed1n nam ch\u00e2m ph\u00f9 h\u1ee3p v\u1edbi v\u1ecb tr\u00ed b\u1ea1n \u0111\u1ecbnh \u0111\u1eb7t. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111o k\u00edch th\u01b0\u1edbc nam ch\u00e2m b\u1eb1ng th\u01b0\u1edbc c\u1eb7p, th\u01b0\u1edbc k\u1eb9p ho\u1eb7c m\u00e1y \u0111o t\u1ecda \u0111\u1ed9 (CMM). B\u1ea1n mu\u1ed1n \u0111\u1ea3m b\u1ea3o nam ch\u00e2m s\u1ebd v\u1eeba v\u1eb7n ch\u00ednh x\u00e1c n\u01a1i b\u1ea1n \u0111\u1ecbnh \u0111\u1eb7t.<\/strong><\/p>\n

<\/p>\n

<\/strong>Thu\u1ed9c t\u00ednh t\u1eeb<\/strong><\/h2>\n

\"Thu\u1ed9c<\/p>\n

\u0110i\u1ec1u th\u1ee9 ba b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a nam ch\u00e2m. C\u00f3 m\u1ed9t v\u00e0i ph\u00e9p \u0111o kh\u00e1c nhau b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m. Ba ph\u00e9p \u0111o ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 \u0111\u1ed9 d\u01b0 t\u1eeb (Br), \u0111\u1ed9 c\u1ee9ng t\u1eeb (Hc) v\u00e0 s\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax).<\/strong><\/p>\n

\u0110\u1ed9 d\u01b0 t\u1eeb (Br) l\u00e0 l\u01b0\u1ee3ng t\u1eeb tr\u01b0\u1eddng c\u00f2n l\u1ea1i trong nam ch\u00e2m sau khi b\u1ea1n l\u1ea5y n\u00f3 ra kh\u1ecfi tr\u01b0\u1eddng t\u1eeb.<\/strong><\/p>\n

\u0110\u1ed9 c\u1ee9ng t\u1eeb (Hc) l\u00e0 th\u01b0\u1edbc \u0111o m\u1ee9c \u0111\u1ed9 kh\u00f3 \u0111\u1ec3 lo\u1ea1i b\u1ecf t\u1eeb tr\u01b0\u1eddng kh\u1ecfi nam ch\u00e2m.<\/strong><\/p>\n

S\u1ea3n ph\u1ea9m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a (BHmax) l\u00e0 l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng t\u1eeb m\u00e0 nam ch\u00e2m c\u00f3 th\u1ec3 l\u01b0u tr\u1eef. BHmax cao r\u1ea5t quan tr\u1ecdng khi b\u1ea1n c\u1ea7n m\u1ed9t nam ch\u00e2m m\u1ea1nh.<\/strong><\/p>\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 m\u00e1y \u0111o t\u1eeb m\u1eabu dao \u0111\u1ed9ng (VSM) v\u00e0 m\u00e1y \u0111o \u0111\u1ed9 th\u1ea5m \u0111\u1ec3 \u0111o c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y. H\u1ecd l\u1ea5y m\u1ed9t nam ch\u00e2m, \u0111\u01b0a v\u00e0o c\u00e1c m\u00e1y n\u00e0y v\u00e0 th\u1ef1c hi\u1ec7n nhi\u1ec1u b\u00e0i ki\u1ec3m tra. C\u00e1c b\u00e0i ki\u1ec3m tra n\u00e0y t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng cong qu\u00e1n t\u00ednh t\u1eeb.<\/strong><\/p>\n

M\u1ed9t b\u00e0i ki\u1ec3m tra kh\u00e1c b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n l\u00e0 ki\u1ec3m tra l\u1ef1c k\u00e9o. B\u1ea1n \u0111\u1eb7t nam ch\u00e2m v\u00e0o m\u1ed9t m\u00e1y \u0111o l\u1ef1c k\u00e9o \u0111\u1ec3 \u0111o xem c\u1ea7n l\u1ef1c bao nhi\u00eau \u0111\u1ec3 k\u00e9o nam ch\u00e2m ra kh\u1ecfi v\u1eadt th\u1ec3 ho\u1eb7c gi\u1eef nam ch\u00e2m tr\u00ean v\u1eadt th\u1ec3. B\u00e0i ki\u1ec3m tra n\u00e0y cho bi\u1ebft nam ch\u00e2m c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/strong><\/p>\n

M\u1ed9t b\u00e0i ki\u1ec3m tra n\u1eefa l\u00e0 s\u1eed d\u1ee5ng m\u00e1y \u0111o Gauss. M\u00e1y \u0111o Gauss \u0111o \u0111\u1ed9 m\u1ea1nh c\u1ee7a tr\u01b0\u1eddng t\u1eeb c\u1ee7a nam ch\u00e2m. B\u00e0i ki\u1ec3m tra n\u00e0y cho bi\u1ebft ph\u00e2n b\u1ed1 c\u1ee7a tr\u01b0\u1eddng t\u1eeb v\u00e0 \u0111\u1ed9 m\u1ea1nh c\u1ee7a nam ch\u00e2m.<\/strong><\/p>\n

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L\u1edbp ph\u1ee7<\/strong><\/span><\/h2>\n

\u0110i\u1ec1u ti\u1ebfp theo b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 l\u1edbp ph\u1ee7 tr\u00ean nam ch\u00e2m. L\u1edbp ph\u1ee7 \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean nam ch\u00e2m \u0111\u1ec3 b\u1ea3o v\u1ec7 kh\u1ecfi \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n. B\u1ea1n mu\u1ed1n \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 s\u1ebd b\u00e1m ch\u1eafc tr\u00ean nam ch\u00e2m.<\/strong><\/p>\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ki\u1ec3m tra l\u1edbp ph\u1ee7 c\u1ee7a nam ch\u00e2m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 s\u1ebd b\u00e1m ch\u1eafc tr\u00ean nam ch\u00e2m. H\u1ecd s\u1eed d\u1ee5ng th\u1eed nghi\u1ec7m d\u00e1n b\u0103ng ho\u1eb7c th\u1eed nghi\u1ec7m tr\u1ea7y x\u01b0\u1edbc \u0111\u1ec3 xem l\u1edbp ph\u1ee7 c\u00f3 b\u00e1m ch\u1eafc kh\u00f4ng.<\/strong><\/p>\n

H\u1ecd c\u0169ng ki\u1ec3m tra xem l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi r\u1ec9 s\u00e9t kh\u00f4ng. H\u1ecd \u0111\u1eb7t nam ch\u00e2m trong bu\u1ed3ng phun mu\u1ed1i v\u00e0 bu\u1ed3ng \u0111\u1ed9 \u1ea9m \u0111\u1ec3 xem l\u1edbp ph\u1ee7 c\u00f3 gi\u1eef cho nam ch\u00e2m kh\u00f4ng b\u1ecb r\u1ec9 s\u00e9t kh\u00f4ng.<\/strong><\/p>\n

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Nhi\u1ec7t \u0111\u1ed9<\/strong><\/span><\/h2>\n

\u0110i\u1ec1u ti\u1ebfp theo b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 c\u00e1ch nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Nam ch\u00e2m neodymium nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao. Khi b\u1ea1n ph\u01a1i nhi\u1ec5m nam ch\u00e2m \u1edf nhi\u1ec7t \u0111\u1ed9 cao, n\u00f3 s\u1ebd m\u1ea5t m\u1ed9t ph\u1ea7n \u0111\u1ed9 m\u1ea1nh t\u1eeb c\u1ee7a m\u00ecnh.<\/strong><\/p>\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ki\u1ec3m tra c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m \u1edf nhi\u1ec7t \u0111\u1ed9 cao. H\u1ecd th\u1ef1c hi\u1ec7n m\u1ed9t b\u00e0i ki\u1ec3m tra g\u1ecdi l\u00e0 chu k\u1ef3 nhi\u1ec7t. H\u1ecd \u0111\u1eb7t nam ch\u00e2m v\u00e0o l\u00f2 nung v\u00e0 nung n\u00f3ng \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. Sau \u0111\u00f3 h\u1ecd l\u00e0m ngu\u1ed9i \u0111\u1ec3 xem li\u1ec7u nam ch\u00e2m c\u00f3 m\u1ea5t \u0111i m\u1ed9t ph\u1ea7n s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng c\u1ee7a n\u00f3 hay kh\u00f4ng. H\u1ecd c\u0169ng th\u1ef1c hi\u1ec7n m\u1ed9t b\u00e0i ki\u1ec3m tra g\u1ecdi l\u00e0 s\u1ed1c nhi\u1ec7t. H\u1ecd \u0111\u1eb7t nam ch\u00e2m v\u00e0o bu\u1ed3ng l\u1ea1nh v\u00e0 l\u00e0m ngu\u1ed9i \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. Sau \u0111\u00f3 h\u1ecd \u0111\u1eb7t n\u00f3 v\u00e0o bu\u1ed3ng n\u00f3ng v\u00e0 nung n\u00f3ng \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. H\u1ecd l\u00e0m \u0111i\u1ec1u n\u00e0y v\u00e0i l\u1ea7n \u0111\u1ec3 xem li\u1ec7u nam ch\u00e2m c\u00f3 m\u1ea5t \u0111i m\u1ed9t ph\u1ea7n s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng c\u1ee7a n\u00f3 hay kh\u00f4ng.<\/strong><\/p>\n

C\u00f3 hai \u0111i\u1ec1u b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra \u0111\u1ec3 xem nam ch\u00e2m s\u1ebd ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110i\u1ec1u \u0111\u1ea7u ti\u00ean l\u00e0 h\u1ec7 s\u1ed1 nhi\u1ec7t \u0111\u1ed9. H\u1ec7 s\u1ed1 nhi\u1ec7t \u0111\u1ed9 cho bi\u1ebft nam ch\u00e2m s\u1ebd m\u1ea5t bao nhi\u00eau s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao.<\/strong><\/p>\n

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Tu\u00e2n th\u1ee7<\/strong><\/span><\/h2>\n

\u0110i\u1ec1u cu\u1ed1i c\u00f9ng b\u1ea1n mu\u1ed1n ki\u1ec3m tra l\u00e0 t\u00ednh tu\u00e2n th\u1ee7 c\u1ee7a nam ch\u00e2m neodymium. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m neodymium tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf. C\u00e1c ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 ISO (T\u1ed5 ch\u1ee9c Ti\u00eau chu\u1ea9n H\u00f3a Qu\u1ed1c t\u1ebf), IEC (\u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Qu\u1ed1c t\u1ebf), v\u00e0 ASTM (Hi\u1ec7p h\u1ed9i Ki\u1ec3m tra v\u00e0 V\u1eadt li\u1ec7u M\u1ef9).<\/strong><\/p>\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m neodymium theo quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng. H\u1ecd ki\u1ec3m tra nguy\u00ean li\u1ec7u th\u00f4 d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t nam ch\u00e2m. H\u1ecd c\u00f3 quy tr\u00ecnh s\u1ea3n xu\u1ea5t m\u00e0 h\u1ecd tu\u00e2n theo. H\u1ecd ghi l\u1ea1i t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. H\u1ecd ki\u1ec3m tra nam ch\u00e2m trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. H\u1ecd ki\u1ec3m tra nam ch\u00e2m khi ho\u00e0n th\u00e0nh. H\u1ecd l\u01b0u gi\u1eef h\u1ed3 s\u01a1 c\u1ee7a t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec h\u1ecd ki\u1ec3m tra. H\u1ecd l\u01b0u gi\u1eef h\u1ed3 s\u01a1 c\u1ee7a m\u1ecdi th\u1ee9 h\u1ecd l\u00e0m trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. H\u1ecd l\u00e0m \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda ch\u1eefa b\u1ea5t k\u1ef3 v\u1ea5n \u0111\u1ec1 n\u00e0o x\u1ea3y ra trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. H\u1ecd c\u0169ng l\u00e0m \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 c\u00f3 th\u1ec3 ch\u1ee9ng minh v\u1edbi b\u1ea1n, kh\u00e1ch h\u00e0ng, r\u1eb1ng h\u1ecd \u0111\u00e3 l\u00e0m \u0111\u00fang c\u00e1ch c\u00e1c nam ch\u00e2m theo y\u00eau c\u1ea7u.<\/strong><\/p>\n

 <\/p>\n

Trong ch\u01b0\u01a1ng n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 n\u00f3i v\u1ec1 c\u00e1ch ki\u1ec3m tra nam ch\u00e2m neodymium \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00fang l\u00e0 nam ch\u00e2m t\u1ed1t cho s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i \u0111\u00e3 n\u00f3i v\u1ec1 hi\u1ec7u su\u1ea5t, ngo\u1ea1i h\u00ecnh, k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 m\u1ea1nh, l\u1edbp ph\u1ee7, nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u00ednh tu\u00e2n th\u1ee7. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nam ch\u00e2m neodymium ki\u1ec3m tra t\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ecd b\u00e1n cho b\u1ea1n m\u1ed9t nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng. H\u1ecd mu\u1ed1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng nam ch\u00e2m h\u1ecd b\u00e1n cho b\u1ea1n s\u1ebd ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"

Nam ch\u00e2m Neodymium \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau v\u00ec ch\u00fang m\u1ea1nh, nh\u1ecf g\u1ecdn v\u00e0 r\u1ebb. Nh\u01b0ng \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o ch\u00fang l\u00e0 nh\u1eefng nam ch\u00e2m t\u1ed1t cho c\u00e1c s\u1ea3n ph\u1ea9m b\u1ea1n l\u00e0m. C\u00f3 m\u1ed9t v\u00e0i \u0111i\u1ec1u b\u1ea1n c\u1ea7n ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 m\u1ed9t nam ch\u00e2m neodymium ch\u1ea5t l\u01b0\u1ee3ng. B\u1ea1n [\u2026]<\/p>","protected":false},"author":1,"featured_media":359,"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-1478","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\/neodymium-magnet-1.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1478","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=1478"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1478\/revisions"}],"predecessor-version":[{"id":1481,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1478\/revisions\/1481"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/359"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}