{"id":1368,"date":"2024-10-25T08:34:58","date_gmt":"2024-10-25T08:34:58","guid":{"rendered":"https:\/\/nbaem.com\/?p=1368"},"modified":"2024-10-25T08:36:15","modified_gmt":"2024-10-25T08:36:15","slug":"how-to-make-ndfeb-magnet","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/how-to-make-ndfeb-magnet\/","title":{"rendered":"C\u00e1ch l\u00e0m nam ch\u00e2m NdFeB"},"content":{"rendered":"
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Nam ch\u00e2m Neodymium<\/a> <\/span>v\u1eabn l\u00e0 v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm m\u1ea1nh m\u1ebd v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean nh\u1ea5t hi\u1ec7n nay. Nam ch\u00e2m Neodymium c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nam ch\u00e2m Neodymium thi\u00eau k\u1ebft, nam ch\u00e2m Neodymium li\u00ean k\u1ebft v\u00e0 nam ch\u00e2m Neodymium \u00e9p n\u00f3ng t\u00f9y theo quy tr\u00ecnh s\u1ea3n xu\u1ea5t. M\u1ed7i d\u1ea1ng c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh kh\u00e1c nhau, do \u0111\u00f3 ph\u1ea1m vi \u1ee9ng d\u1ee5ng tr\u00f9ng l\u1eb7p c\u1ee7a ch\u00fang \u00edt h\u01a1n v\u00e0 c\u00f3 m\u1ed1i quan h\u1ec7 b\u1ed5 sung. Ng\u01b0\u1eddi d\u00f9ng nam ch\u00e2m \u0111ang b\u0103n kho\u0103n kh\u00f4ng bi\u1ebft nam ch\u00e2m Neodymium \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u01b0 th\u1ebf n\u00e0o. Nam ch\u00e2m Neodymium thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh luy\u1ec7n kim b\u1ed9t th\u00f4ng th\u01b0\u1eddng v\u00e0 chi\u1ebfm \u01b0u th\u1ebf tuy\u1ec7t \u0111\u1ed1i tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/span><\/p>\n<\/div>\n<\/div>\n

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Nam ch\u00e2m Neodymium \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/p>\n

Nam ch\u00e2m Neodymium thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng c\u00e1ch n\u1ea5u ch\u1ea3y nguy\u00ean li\u1ec7u th\u00f4 trong ch\u00e2n kh\u00f4ng ho\u1eb7c kh\u00ed tr\u01a1 trong l\u00f2 n\u1ea5u ch\u1ea3y c\u1ea3m \u1ee9ng, sau \u0111\u00f3 x\u1eed l\u00fd trong m\u00e1y \u0111\u00fac d\u1ea3i v\u00e0 l\u00e0m ngu\u1ed9i \u0111\u1ec3 t\u1ea1o th\u00e0nh d\u1ea3i h\u1ee3p kim Nd-Fe-B. C\u00e1c d\u1ea3i h\u1ee3p kim \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh b\u1ed9t m\u1ecbn c\u00f3 \u0111\u01b0\u1eddng k\u00ednh v\u00e0i micron. B\u1ed9t m\u1ecbn sau \u0111\u00f3 \u0111\u01b0\u1ee3c n\u00e9n trong m\u1ed9t tr\u01b0\u1eddng t\u1eeb \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 thi\u00eau k\u1ebft th\u00e0nh c\u00e1c kh\u1ed1i \u0111\u1eb7c. C\u00e1c kh\u1ed1i sau \u0111\u00f3 \u0111\u01b0\u1ee3c gia c\u00f4ng th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng c\u1ee5 th\u1ec3, x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 t\u1eeb h\u00f3a.<\/p>\n

C\u00e2n \u0111ong<\/strong><\/p>\n

Vi\u1ec7c c\u00e2n nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ee7 ti\u00eau chu\u1ea9n li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a th\u00e0nh ph\u1ea7n nam ch\u00e2m. \u0110\u1ed9 tinh khi\u1ebft ho\u1eb7c nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m. Nam ch\u00e2m Neodymium thi\u00eau k\u1ebft th\u01b0\u1eddng ch\u1ecdn h\u1ee3p kim \u0111\u1ea5t hi\u1ebfm nh\u01b0 Praseodymium-Neodymium Pr-Nd mischmetal, Lanthanum-Cerium La-Ce mischmetal v\u00e0 h\u1ee3p kim Dysprosium Iron Dy-Fe l\u00e0m v\u1eadt li\u1ec7u v\u00ec l\u00fd do chi ph\u00ed. C\u00e1c nguy\u00ean t\u1ed1 c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y cao nh\u01b0 Boron, Molybdenum ho\u1eb7c Niobi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o d\u01b0\u1edbi d\u1ea1ng h\u1ee3p kim s\u1eaft. L\u1edbp g\u1ec9, t\u1ea1p ch\u1ea5t, oxit v\u00e0 b\u1ee5i b\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t nguy\u00ean li\u1ec7u th\u00f4 c\u1ea7n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf b\u1eb1ng m\u00e1y b\u1eafn vi h\u1ea1t. Ngo\u00e0i ra, nguy\u00ean li\u1ec7u th\u00f4 ph\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 trong qu\u00e1 tr\u00ecnh n\u1ea5u ch\u1ea3y ti\u1ebfp theo. Neodymium c\u00f3 \u00e1p su\u1ea5t h\u01a1i th\u1ea5p v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh h\u00f3a h\u1ecdc ho\u1ea1t \u0111\u1ed9ng, do \u0111\u00f3 kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm t\u1ed3n t\u1ea1i \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 bay h\u01a1i v\u00e0 oxy h\u00f3a nh\u1ea5t \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh n\u1ea5u ch\u1ea3y, do \u0111\u00f3, qu\u00e1 tr\u00ecnh c\u00e2n nam ch\u00e2m Neodymium thi\u00eau k\u1ebft ph\u1ea3i xem x\u00e9t th\u00eam kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm b\u1ed5 sung \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a th\u00e0nh ph\u1ea7n nam ch\u00e2m.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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N\u1ea5u ch\u1ea3y v\u00e0 \u0111\u00fac d\u1ea3i<\/strong><\/p>\n<\/div>\n<\/div>\n

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N\u1ea5u ch\u1ea3y v\u00e0 \u0111\u00fac d\u1ea3i l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi th\u00e0nh ph\u1ea7n, tr\u1ea1ng th\u00e1i tinh th\u1ec3 v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a pha, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh ti\u1ebfp theo v\u00e0 hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh. Nguy\u00ean li\u1ec7u th\u00f4 \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn tr\u1ea1ng th\u00e1i n\u00f3ng ch\u1ea3y th\u00f4ng qua n\u1ea5u ch\u1ea3y c\u1ea3m \u1ee9ng t\u1ea7n s\u1ed1 trung b\u00ecnh v\u00e0 th\u1ea5p trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng ho\u1eb7c kh\u00ed tr\u01a1. Qu\u00e1 tr\u00ecnh \u0111\u00fac c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd khi h\u1ee3p kim n\u00f3ng ch\u1ea3y \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng nh\u1ea5t, tho\u00e1t kh\u00ed v\u00e0 t\u1ea1o x\u1ec9. M\u1ed9t c\u1ea5u tr\u00fac vi m\u00f4 th\u1ecfi \u0111\u00fac t\u1ed1t ph\u1ea3i c\u00f3 tinh th\u1ec3 h\u00ecnh tr\u1ee5 ph\u00e1t tri\u1ec3n t\u1ed1t v\u00e0 k\u00edch th\u01b0\u1edbc m\u1ecbn, sau \u0111\u00f3 pha gi\u00e0u Nd ph\u1ea3i ph\u00e2n b\u1ed1 d\u1ecdc theo ranh gi\u1edbi h\u1ea1t. Ngo\u00e0i ra, c\u1ea5u tr\u00fac vi m\u00f4 th\u1ecfi \u0111\u00fac ph\u1ea3i kh\u00f4ng c\u00f3 pha \u03b1-Fe. Gi\u1ea3n \u0111\u1ed3 pha Re-Fe ch\u1ec9 ra r\u1eb1ng h\u1ee3p kim ternary \u0111\u1ea5t hi\u1ebfm l\u00e0 kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi \u0111\u1ec3 t\u1ea1o ra pha \u03b1-Fe trong qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i ch\u1eadm. C\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb m\u1ec1m \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng c\u1ee7a pha \u03b1-Fe s\u1ebd l\u00e0m h\u1ecfng nghi\u00eam tr\u1ecdng hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh c\u1ee7a nam ch\u00e2m, do \u0111\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u1ee9c ch\u1ebf b\u1eb1ng c\u00e1ch l\u00e0m ngu\u1ed9i nhanh. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 l\u00e0m ngu\u1ed9i nhanh mong mu\u1ed1n nh\u1eb1m \u1ee9c ch\u1ebf qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t pha \u03b1-Fe, Showa Denko K. K., \u0111\u00e3 ph\u00e1t tri\u1ec3n C\u00f4ng ngh\u1ec7 \u0111\u00fac d\u1ea3i v\u00e0 nhanh ch\u00f3ng tr\u1edf th\u00e0nh c\u00f4ng ngh\u1ec7 th\u01b0\u1eddng xuy\u00ean trong ng\u00e0nh. S\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a pha gi\u00e0u Nd v\u00e0 hi\u1ec7u \u1ee9ng \u1ee9c ch\u1ebf tr\u00ean pha \u03b1-Fe c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 t\u1ed5ng h\u00e0m l\u01b0\u1ee3ng \u0111\u1ea5t hi\u1ebfm, \u0111i\u1ec1u n\u00e0y thu\u1eadn l\u1ee3i cho vi\u1ec7c s\u1ea3n xu\u1ea5t nam ch\u00e2m hi\u1ec7u su\u1ea5t cao v\u00e0 gi\u1ea3m chi ph\u00ed.<\/p>\n

S\u1ef1 gi\u00f2n do hydro<\/strong><\/p>\n<\/div>\n<\/div>\n

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H\u00e0nh vi hydro h\u00f3a c\u1ee7a kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm, h\u1ee3p kim ho\u1eb7c h\u1ee3p ch\u1ea5t li\u00ean kim lo\u1ea1i v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh h\u00f3a l\u00fd c\u1ee7a hydride lu\u00f4n l\u00e0 v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng trong \u1ee9ng d\u1ee5ng \u0111\u1ea5t hi\u1ebfm. Th\u1ecfi h\u1ee3p kim Nd-Fe-B c\u0169ng th\u1ec3 hi\u1ec7n xu h\u01b0\u1edbng hydro h\u00f3a r\u1ea5t m\u1ea1nh. C\u00e1c nguy\u00ean t\u1eed hydro \u0111i v\u00e0o v\u1ecb tr\u00ed xen k\u1ebd gi\u1eefa pha ch\u00ednh c\u1ee7a h\u1ee3p ch\u1ea5t li\u00ean kim lo\u1ea1i v\u00e0 pha ranh gi\u1edbi h\u1ea1t gi\u00e0u Nd v\u00e0 t\u1ea1o th\u00e0nh h\u1ee3p ch\u1ea5t xen k\u1ebd. Sau \u0111\u00f3 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c nguy\u00ean t\u1eed t\u0103ng l\u00ean v\u00e0 th\u1ec3 t\u00edch m\u1ea1ng tinh th\u1ec3 gi\u00e3n ra. \u1ee8ng su\u1ea5t b\u00ean trong g\u00e2y ra s\u1ebd t\u1ea1o ra n\u1ee9t ranh gi\u1edbi h\u1ea1t (n\u1ee9t gi\u1eefa c\u00e1c h\u1ea1t), n\u1ee9t tinh th\u1ec3 (n\u1ee9t xuy\u00ean tinh th\u1ec3) ho\u1eb7c n\u1ee9t d\u1ebbo. Nh\u1eefng s\u1ef1 gi\u00f2n n\u00e0y \u0111i k\u00e8m v\u1edbi ti\u1ebfng n\u1ee9t v\u00e0 do \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 gi\u00f2n do hydro. Qu\u00e1 tr\u00ecnh gi\u00f2n do hydro c\u1ee7a nam ch\u00e2m Neodymium thi\u00eau k\u1ebft c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 qu\u00e1 tr\u00ecnh HD. N\u1ee9t ranh gi\u1edbi h\u1ea1t v\u00e0 n\u1ee9t tinh th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh gi\u00f2n do hydro \u0111\u00e3 l\u00e0m cho b\u1ed9t th\u00f4 NdFeB r\u1ea5t d\u1ec5 v\u1ee1 v\u00e0 c\u00f3 l\u1ee3i th\u1ebf cao cho qu\u00e1 tr\u00ecnh nghi\u1ec1n ph\u1ea3n l\u1ef1c ti\u1ebfp theo. Ngo\u00e0i vi\u1ec7c n\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n ph\u1ea3n l\u1ef1c, qu\u00e1 tr\u00ecnh gi\u00f2n do hydro c\u0169ng thu\u1eadn l\u1ee3i \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc b\u1ed9t trung b\u00ecnh c\u1ee7a b\u1ed9t m\u1ecbn.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Nghi\u1ec1n ph\u1ea3n l\u1ef1c<\/strong><\/p>\n

Nghi\u1ec1n ph\u1ea3n l\u1ef1c \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 gi\u1ea3i ph\u00e1p th\u1ef1c t\u1ebf v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd b\u1ed9t. Nghi\u1ec1n ph\u1ea3n l\u1ef1c s\u1eed d\u1ee5ng m\u1ed9t lu\u1ed3ng kh\u00ed tr\u01a1 t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 t\u0103ng t\u1ed1c b\u1ed9t th\u00f4 \u0111\u1ebfn v\u1eadn t\u1ed1c si\u00eau thanh v\u00e0 l\u00e0m cho c\u00e1c h\u1ea1t b\u1ed9t va \u0111\u1eadp v\u00e0o nhau. M\u1ee5c \u0111\u00edch c\u01a1 b\u1ea3n c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd b\u1ed9t l\u00e0 t\u00ecm ki\u1ebfm k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh v\u00e0 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t th\u00edch h\u1ee3p. S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m tr\u00ean th\u1ec3 hi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00e1c nhau \u1edf quy m\u00f4 v\u0129 m\u00f4, \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c l\u1ea5p \u0111\u1ea7y b\u1ed9t, \u0111\u1ecbnh h\u01b0\u1edbng, n\u00e9n, t\u00e1ch khu\u00f4n v\u00e0 c\u1ea5u tr\u00fac vi m\u00f4 \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft, do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng nh\u1ea1y c\u1ea3m \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, nhi\u1ec7t \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc c\u1ee7a nam ch\u00e2m Neodymium thi\u00eau k\u1ebft. C\u1ea5u tr\u00fac vi m\u00f4 l\u00fd t\u01b0\u1edfng l\u00e0 h\u1ea1t pha ch\u00ednh m\u1ecbn v\u00e0 \u0111\u1ed3ng nh\u1ea5t \u0111\u01b0\u1ee3c bao quanh b\u1edfi pha ph\u1ee5 m\u1ecfng v\u00e0 m\u1ecbn. B\u00ean c\u1ea1nh \u0111\u00f3, h\u01b0\u1edbng t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng c\u1ee7a h\u1ea1t pha ch\u00ednh ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp d\u1ecdc theo h\u01b0\u1edbng \u0111\u1ecbnh h\u01b0\u1edbng c\u00e0ng nh\u1ea5t qu\u00e1n c\u00e0ng t\u1ed1t. C\u00e1c l\u1ed7 r\u1ed7ng, h\u1ea1t l\u1edbn ho\u1eb7c pha t\u1eeb m\u1ec1m s\u1ebd d\u1eabn \u0111\u1ebfn gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u1ef1c kh\u00e1ng t\u1eeb. L\u1ef1c t\u1eeb d\u01b0 v\u00e0 \u0111\u1ed9 vu\u00f4ng g\u00f3c c\u1ee7a \u0111\u01b0\u1eddng cong kh\u1eed t\u1eeb s\u1ebd \u0111\u1ed3ng th\u1eddi gi\u1ea3m trong khi h\u01b0\u1edbng t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng c\u1ee7a h\u1ea1t l\u1ec7ch kh\u1ecfi h\u01b0\u1edbng \u0111\u1ecbnh h\u01b0\u1edbng. Do \u0111\u00f3, h\u1ee3p kim n\u00ean \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh h\u1ea1t tinh th\u1ec3 \u0111\u01a1n c\u00f3 \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 3 \u0111\u1ebfn 5 micron.<\/p>\n

N\u00e9n<\/strong><\/p>\n<\/div>\n<\/div>\n

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N\u00e9n \u0111\u1ecbnh h\u01b0\u1edbng tr\u01b0\u1eddng t\u1eeb \u0111\u1ec1 c\u1eadp \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa b\u1ed9t t\u1eeb v\u00e0 tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i \u0111\u1ec3 c\u0103n ch\u1ec9nh b\u1ed9t d\u1ecdc theo h\u01b0\u1edbng t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng v\u00e0 l\u00e0m cho n\u00f3 nh\u1ea5t qu\u00e1n v\u1edbi h\u01b0\u1edbng t\u1eeb h\u00f3a cu\u1ed1i c\u00f9ng. N\u00e9n \u0111\u1ecbnh h\u01b0\u1edbng tr\u01b0\u1eddng t\u1eeb l\u00e0 con \u0111\u01b0\u1eddng ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 s\u1ea3n xu\u1ea5t nam ch\u00e2m d\u1ecb h\u01b0\u1edbng. H\u1ee3p kim Nd-Fe-B \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh h\u1ea1t tinh th\u1ec3 \u0111\u01a1n trong qu\u00e1 tr\u00ecnh nghi\u1ec1n ph\u1ea3n l\u1ef1c tr\u01b0\u1edbc \u0111\u00f3. H\u1ea1t tinh th\u1ec3 \u0111\u01a1n c\u00f3 d\u1ecb h\u01b0\u1edbng \u0111\u01a1n tr\u1ee5c v\u00e0 m\u1ed7i h\u1ea1t ch\u1ec9 c\u00f3 m\u1ed9t h\u01b0\u1edbng t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng. B\u1ed9t t\u1eeb s\u1ebd bi\u1ebfn \u0111\u1ed5i th\u00e0nh mi\u1ec1n \u0111\u01a1n t\u1eeb mi\u1ec1n \u0111a mi\u1ec1n d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i sau khi \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y l\u1ecfng l\u1ebbo v\u00e0o khu\u00f4n, sau \u0111\u00f3 \u0111i\u1ec1u ch\u1ec9nh h\u01b0\u1edbng t\u1eeb h\u00f3a d\u1ec5 d\u00e0ng tr\u1ee5c c c\u1ee7a n\u00f3 \u0111\u1ec3 nh\u1ea5t qu\u00e1n v\u1edbi h\u01b0\u1edbng tr\u01b0\u1eddng t\u1eeb b\u00ean ngo\u00e0i th\u00f4ng qua vi\u1ec7c xoay ho\u1eb7c di chuy\u1ec3n. Tr\u1ee5c c c\u1ee7a b\u1ed9t h\u1ee3p kim v\u1ec1 c\u01a1 b\u1ea3n v\u1eabn gi\u1eef tr\u1ea1ng th\u00e1i s\u1eafp x\u1ebfp c\u1ee7a n\u00f3 trong qu\u00e1 tr\u00ecnh n\u00e9n. C\u00e1c b\u1ed9 ph\u1eadn n\u00e9n ph\u1ea3i ti\u1ebfn h\u00e0nh x\u1eed l\u00fd kh\u1eed t\u1eeb tr\u01b0\u1edbc khi t\u00e1ch khu\u00f4n. Ch\u1ec9 s\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e9n l\u00e0 m\u1ee9c \u0111\u1ed9 \u0111\u1ecbnh h\u01b0\u1edbng. M\u1ee9c \u0111\u1ed9 \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m Neodymium thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau, bao g\u1ed3m c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb \u0111\u1ecbnh h\u01b0\u1edbng, k\u00edch th\u01b0\u1edbc h\u1ea1t, m\u1eadt \u0111\u1ed9 bi\u1ec3u ki\u1ebfn, ph\u01b0\u01a1ng ph\u00e1p n\u00e9n, \u00e1p su\u1ea5t n\u00e9n, v.v.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Thi\u00eau k\u1ebft<\/strong><\/p>\n<\/div>\n<\/div>\n

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M\u1eadt \u0111\u1ed9 c\u1ee7a ph\u1ea7n \u0111\u01b0\u1ee3c n\u00e9n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u01a1n 95% m\u1eadt \u0111\u1ed9 l\u00fd thuy\u1ebft sau khi x\u1eed l\u00fd qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft trong ch\u00e2n kh\u00f4ng cao ho\u1eb7c kh\u00ed tr\u01a1 tinh khi\u1ebft. Do \u0111\u00f3, c\u00e1c l\u1ed7 r\u1ed7ng trong nam ch\u00e2m Neodymium thi\u00eau k\u1ebft \u0111\u01b0\u1ee3c \u0111\u00f3ng l\u1ea1i, \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc. V\u00ec c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb v\u0129nh c\u1eedu c\u1ee7a nam ch\u00e2m Neodymium thi\u00eau k\u1ebft c\u00f3 li\u00ean quan ch\u1eb7t ch\u1ebd \u0111\u1ebfn c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a n\u00f3, n\u00ean vi\u1ec7c x\u1eed l\u00fd nhi\u1ec7t sau qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft c\u0169ng r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh, \u0111\u1eb7c bi\u1ec7t l\u00e0 l\u1ef1c kh\u00e1ng t\u1eeb. Pha ranh gi\u1edbi h\u1ea1t gi\u00e0u Nd \u0111\u00f3ng vai tr\u00f2 l\u00e0 pha l\u1ecfng c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y ph\u1ea3n \u1ee9ng thi\u00eau k\u1ebft v\u00e0 ph\u1ee5c h\u1ed3i c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t tr\u00ean h\u1ea1t pha ch\u00ednh. Nhi\u1ec7t \u0111\u1ed9 thi\u00eau k\u1ebft c\u1ee7a nam ch\u00e2m Neodymium th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 1050 \u0111\u1ebfn 1180 \u0111\u1ed9 C. Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n h\u1ea1t v\u00e0 gi\u1ea3m l\u1ef1c kh\u00e1ng t\u1eeb. \u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c l\u1ef1c kh\u00e1ng t\u1eeb l\u00fd t\u01b0\u1edfng, \u0111\u1ed9 vu\u00f4ng g\u00f3c c\u1ee7a \u0111\u01b0\u1eddng cong kh\u1eed t\u1eeb v\u00e0 t\u1ed5n th\u1ea5t kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c \u1edf nhi\u1ec7t \u0111\u1ed9 cao, nam ch\u00e2m Neodymium thi\u00eau k\u1ebft th\u01b0\u1eddng c\u1ea7n ph\u1ea3i x\u1eed l\u00fd nhi\u1ec7t \u1ee7 hai giai \u0111o\u1ea1n \u1edf 900 v\u00e0 500 \u0111\u1ed9 C.<\/p>\n

Gia c\u00f4ng<\/strong><\/p>\n

Ngo\u00e0i h\u00ecnh d\u1ea1ng th\u00f4ng th\u01b0\u1eddng v\u1edbi k\u00edch th\u01b0\u1edbc v\u1eeba ph\u1ea3i, nam ch\u00e2m Neodymium thi\u00eau k\u1ebft r\u1ea5t kh\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u tr\u1ef1c ti\u1ebfp ngay l\u1eadp t\u1ee9c do nh\u1eefng h\u1ea1n ch\u1ebf k\u1ef9 thu\u1eadt trong qu\u00e1 tr\u00ecnh n\u00e9n \u0111\u1ecbnh h\u01b0\u1edbng tr\u01b0\u1eddng t\u1eeb, do \u0111\u00f3, gia c\u00f4ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi \u0111\u1ed1i v\u1edbi nam ch\u00e2m Neodymium thi\u00eau k\u1ebft. L\u00e0 m\u1ed9t v\u1eadt li\u1ec7u cermet \u0111i\u1ec3n h\u00ecnh, nam ch\u00e2m Neodymium thi\u00eau k\u1ebft kh\u00e1 c\u1ee9ng v\u00e0 gi\u00f2n, do \u0111\u00f3 ch\u1ec9 c\u00f3 c\u1eaft, khoan v\u00e0 m\u00e0i m\u1edbi c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho qu\u00e1 tr\u00ecnh gia c\u00f4ng c\u1ee7a n\u00f3 trong s\u1ed1 c\u00e1c c\u00f4ng ngh\u1ec7 gia c\u00f4ng th\u00f4ng th\u01b0\u1eddng. C\u1eaft b\u1eb1ng l\u01b0\u1ee1i dao th\u01b0\u1eddng s\u1eed d\u1ee5ng l\u01b0\u1ee1i dao ph\u1ee7 kim c\u01b0\u01a1ng ho\u1eb7c ph\u1ee7 CBN. C\u1eaft d\u00e2y v\u00e0 c\u1eaft laser r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 gia c\u00f4ng nam ch\u00e2m c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u1eb7c bi\u1ec7t, nh\u01b0ng b\u1ecb cho l\u00e0 c\u00f3 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t th\u1ea5p v\u00e0 chi ph\u00ed x\u1eed l\u00fd cao c\u00f9ng l\u00fac. Qu\u00e1 tr\u00ecnh khoan nam ch\u00e2m Neodymium thi\u00eau k\u1ebft ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1eb1ng kim c\u01b0\u01a1ng v\u00e0 laser. C\u1ea7n ph\u1ea3i ch\u1ecdn qu\u00e1 tr\u00ecnh khoan kho\u00e9t khi l\u1ed7 b\u00ean trong c\u1ee7a nam ch\u00e2m h\u00ecnh nh\u1eabn l\u1edbn h\u01a1n 4mm. L\u00e0 s\u1ea3n ph\u1ea9m ph\u1ee5 trong qu\u00e1 tr\u00ecnh khoan kho\u00e9t, l\u00f5i khoan kho\u00e9t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t nam ch\u00e2m nh\u1ecf h\u01a1n ph\u00f9 h\u1ee3p kh\u00e1c v\u00e0 do \u0111\u00f3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u. B\u00e1nh m\u00e0i \u0111\u1ec3 m\u00e0i sao ch\u00e9p \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t tr\u00ean c\u01a1 s\u1edf b\u1ec1 m\u1eb7t m\u00e0i.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/strong><\/p>\n<\/div>\n<\/div>\n

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X\u1eed l\u00fd b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t l\u00e0 m\u1ed9t quy tr\u00ecnh c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi nam ch\u00e2m Neodymium, \u0111\u1eb7c bi\u1ec7t l\u00e0 nam ch\u00e2m Neodymium thi\u00eau k\u1ebft. Nam ch\u00e2m Neodymium thi\u00eau k\u1ebft c\u00f3 c\u1ea5u tr\u00fac vi m\u00f4 \u0111a pha v\u00e0 bao g\u1ed3m pha ch\u00ednh Nd2Fe14B, pha gi\u00e0u Nd v\u00e0 pha gi\u00e0u B. Pha gi\u00e0u Nd c\u00f3 xu h\u01b0\u1edbng oxy h\u00f3a r\u1ea5t m\u1ea1nh v\u00e0 s\u1ebd t\u1ea1o th\u00e0nh pin \u0111i\u1ec7n h\u00f3a v\u1edbi pha ch\u00ednh trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt. M\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c nguy\u00ean t\u1ed1 thay th\u1ebf c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng s\u1ef1 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc c\u1ee7a nam ch\u00e2m, nh\u01b0ng ph\u1ea3i tr\u1ea3 gi\u00e1 b\u1eb1ng hi\u1ec7u su\u1ea5t t\u1eeb t\u00ednh. Do \u0111\u00f3, vi\u1ec7c b\u1ea3o v\u1ec7 nam ch\u00e2m Neodymium thi\u00eau k\u1ebft ch\u1ee7 y\u1ebfu h\u01b0\u1edbng \u0111\u1ebfn b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3. X\u1eed l\u00fd b\u1ec1 m\u1eb7t nam ch\u00e2m Neodymium thi\u00eau k\u1ebft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh quy tr\u00ecnh \u01b0\u1edbt v\u00e0 quy tr\u00ecnh kh\u00f4. Quy tr\u00ecnh \u01b0\u1edbt l\u00e0 nam ch\u00e2m \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t trong n\u01b0\u1edbc tinh khi\u1ebft ho\u1eb7c dung d\u1ecbch. Quy tr\u00ecnh \u01b0\u1edbt bao g\u1ed3m phosphate h\u00f3a, m\u1ea1 \u0111i\u1ec7n, m\u1ea1 kh\u00f4ng \u0111i\u1ec7n, \u0111i\u1ec7n di, s\u01a1n phun v\u00e0 s\u01a1n nh\u00fang. Quy tr\u00ecnh kh\u00f4 l\u00e0 nam ch\u00e2m \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t th\u00f4ng qua qu\u00e1 tr\u00ecnh v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi dung d\u1ecbch. Quy tr\u00ecnh kh\u00f4 th\u01b0\u1eddng bao g\u1ed3m l\u1eafng \u0111\u1ecdng h\u01a1i v\u1eadt l\u00fd (PVD) v\u00e0 l\u1eafng \u0111\u1ecdng h\u01a1i h\u00f3a h\u1ecdc (CVD).<\/p>\n

T\u1eeb h\u00f3a<\/strong><\/p>\n<\/div>\n<\/div>\n

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Ph\u1ea7n l\u1edbn nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a tr\u01b0\u1edbc khi ph\u1ee5c v\u1ee5 cho c\u00e1c \u1ee9ng d\u1ee5ng d\u1ef1 \u0111\u1ecbnh c\u1ee7a ch\u00fang. Qu\u00e1 tr\u00ecnh t\u1eeb h\u00f3a l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u1eb7t m\u1ed9t t\u1eeb tr\u01b0\u1eddng d\u1ecdc theo h\u01b0\u1edbng \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00e3o h\u00f2a k\u1ef9 thu\u1eadt khi c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng ngo\u00e0i t\u0103ng l\u00ean. M\u1ed7i lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh v\u0129nh c\u1eedu c\u1ea7n m\u1ed9t c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00e3o h\u00f2a k\u1ef9 thu\u1eadt theo h\u01b0\u1edbng t\u1eeb h\u00f3a. T\u1eeb d\u01b0 v\u00e0 l\u1ef1c kh\u00e1ng t\u1eeb n\u1ed9i t\u1ea1i s\u1ebd nh\u1ecf h\u01a1n gi\u00e1 tr\u1ecb th\u1ef1c c\u1ee7a n\u00f3 tr\u1eeb khi c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng ngo\u00e0i th\u1ea5p h\u01a1n t\u1eeb tr\u01b0\u1eddng b\u00e3o h\u00f2a k\u1ef9 thu\u1eadt. Nam ch\u00e2m v\u0129nh c\u1eedu c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i \u0111\u1eb3ng h\u01b0\u1edbng v\u00e0 lo\u1ea1i d\u1ecb h\u01b0\u1edbng t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c c\u00f3 h\u01b0\u1edbng d\u1ec5 t\u1eeb h\u00f3a hay kh\u00f4ng. L\u00e0 m\u1ed9t nam ch\u00e2m d\u1ecb h\u01b0\u1edbng v\u1edbi l\u1ef1c kh\u00e1ng t\u1eeb n\u1ed9i t\u1ea1i cao, nam ch\u00e2m Neodymium thi\u00eau k\u1ebft c\u1ea7n \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a b\u1eb1ng c\u00e1ch t\u1eeb h\u00f3a xung. T\u1ee5 \u0111i\u1ec7n s\u1ebd \u0111\u01b0\u1ee3c s\u1ea1c sau khi ch\u1ec9nh l\u01b0u, sau \u0111\u00f3 n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n trong t\u1ee5 \u0111i\u1ec7n s\u1ebd x\u1ea3 t\u1ee9c th\u1eddi v\u00e0o b\u1ed9 g\u00e1 t\u1eeb h\u00f3a. B\u1ed9 g\u00e1 t\u1eeb h\u00f3a c\u00f3 th\u1ec3 t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng xung trong qu\u00e1 tr\u00ecnh d\u00f2ng \u0111i\u1ec7n m\u1ea1nh t\u1ee9c th\u1eddi \u0111i qua n\u00f3. Do \u0111\u00f3, nam ch\u00e2m v\u0129nh c\u1eedu trong cu\u1ed9n d\u00e2y s\u1ebd \u0111\u01b0\u1ee3c t\u1eeb h\u00f3a. C\u00f3 nhi\u1ec1u ki\u1ec3u t\u1eeb h\u00f3a kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u00ean nam ch\u00e2m Neodymium thi\u00eau k\u1ebft mi\u1ec5n l\u00e0 kh\u00f4ng xung \u0111\u1ed9t v\u1edbi h\u01b0\u1edbng \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a n\u00f3.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Nam ch\u00e2m Neodymium v\u1eabn l\u00e0 v\u1eadt li\u1ec7u t\u1eeb v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm m\u1ea1nh nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Nam ch\u00e2m Neodymium c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nam ch\u00e2m Neodymium nung k\u1ebft, nam ch\u00e2m Neodymium li\u00ean k\u1ebft, v\u00e0 nam ch\u00e2m Neodymium \u00e9p n\u00f3ng theo quy tr\u00ecnh s\u1ea3n xu\u1ea5t. M\u1ed7i d\u1ea1ng c\u00f3 \u0111\u1eb7c t\u00ednh t\u1eeb kh\u00e1c nhau, sau \u0111\u00f3 c\u00e1c [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"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-1368","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1368","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=1368"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1368\/revisions"}],"predecessor-version":[{"id":1371,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1368\/revisions\/1371"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}