{"id":19944,"date":"2021-09-09T09:30:46","date_gmt":"2021-09-09T09:30:46","guid":{"rendered":"http:\/\/dgbellvietnam.com\/discussion-on-failure-mode-of-environmental-stress-test\/"},"modified":"2024-11-15T14:52:03","modified_gmt":"2024-11-15T07:52:03","slug":"discussion-on-failure-mode-of-environmental-stress-test","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/discussion-on-failure-mode-of-environmental-stress-test\/","title":{"rendered":"Th\u1ea3o lu\u1eadn v\u1ec1 ch\u1ebf \u0111\u1ed9 th\u1ea5t b\u1ea1i c\u1ee7a th\u1eed nghi\u1ec7m \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng"},"content":{"rendered":"
\n

C\u0103ng th\u1eb3ng nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/span><\/h1>\n

C\u00e1c th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a <\/span><\/span>\u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/a><\/span><\/h3>\n

C\u00f3 hai th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao: (1) nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean (TU); (2) Th\u1eddi gian (T). Ngo\u00e0i ra, c\u00f2n c\u00f3 m\u1ed9t th\u00f4ng s\u1ed1 kh\u00e1c c\u1ea7n xem x\u00e9t: nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (TE), v\u00ec bi\u1ebfn th\u1ef1c s\u1ef1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 cao kh\u00f4ng \u0111\u1ed5i l\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch gi\u1eefa nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean (TU) v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng trong nh\u00e0 (TE), t\u1ee9c l\u00e0 bi\u00ean \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 (R) (r = Tu \u2013 TE)<\/span><\/span><\/p>\n

Ph\u00e2n t\u00edch \u0111\u1eb7c t\u00ednh \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao<\/span><\/span><\/span><\/h3>\n

Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 cao s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng l\u00e3o h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 cao, t\u00edch t\u1ee5 nhi\u1ec7t, di chuy\u1ec3n v\u00e0 lan truy\u1ec1n c\u1ee7a s\u1ea3n ph\u1ea9m. \u0110\u00e2y l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ho\u1eb7c quy tr\u00ecnh t\u0129nh. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 cung c\u1ea5p t\u00e1c \u0111\u1ed9ng nhi\u1ec7t b\u1ed5 sung \u0111\u1ec3 khi\u1ebfn s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 cao \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh, l\u00e0m cho nhi\u1ec7t lan truy\u1ec1n, \u0111\u1ea9y nhanh c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n c\u1ee7a s\u1ea3n ph\u1ea9m th\u00e0nh l\u1ed7i v\u00e0 ph\u01a1i b\u00e0y ch\u00fang d\u01b0\u1edbi d\u1ea1ng l\u1ed7i.<\/span><\/span><\/p>\n

C\u01a1 ch\u1ebf h\u1ecfng h\u00f3c do \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 nh\u1ea1y c\u1ea3m<\/span><\/span><\/span><\/h3>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u kim lo\u1ea1i, trong \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1eddi gian s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc c\u1ee7a khuy\u1ebft t\u1eadt v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a n\u00f3 nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1 \u0111i\u1ec7n, h\u1ee3p kim, v.v.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m thay \u0111\u1ed5i t\u00ednh ch\u1ea5t t\u1eeb \u200b\u200bc\u1ee7a nam ch\u00e2m d\u1eabn v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec7n tr\u1edf (l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf su\u1ea5t), v.v.;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n k\u00e9o, l\u00e0m h\u1ecfng hi\u1ec7u su\u1ea5t c\u00e1ch \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n v\u00e0 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n, d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1 \u0111\u00e1nh l\u1eeda do nhi\u1ec7t, ng\u1eafn m\u1ea1ch ho\u1eb7c h\u1edf m\u1ea1ch c\u00e1c cu\u1ed9n d\u00e2y v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a n\u00f3 nh\u01b0 nh\u1ef1a, nh\u1ef1a th\u00f4ng, v.v.;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng axit v\u00e0 ki\u1ec1m c\u1ee7a s\u1ea3n ph\u1ea9m, l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng khi ch\u1ecbu \u1ee9ng su\u1ea5t;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111i\u1ec7n di, t\u1ee9c l\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m v\u1edbi n\u00f3 nh\u01b0 \u0111\u1ed3ng v\u00e0 nh\u00f4m (\u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u00ec nh\u00f4m trong m\u1ea1ch t\u00edch h\u1ee3p), v.v.;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m m\u1ea5t ch\u1ea5t b\u00f4i tr\u01a1n ho\u1eb7c gi\u1ea3m kh\u1ea3 n\u0103ng b\u00f4i tr\u01a1n, d\u1eabn \u0111\u1ebfn t\u0103ng m\u00e0i m\u00f2n c\u01a1 h\u1ecdc v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn quay (\u1ed5 tr\u1ee5c v\u00e0 tr\u1ee5c quay) c\u1ee7a c\u1ea5u tr\u00fac c\u01a1 kh\u00ed;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao g\u00e2y ra nh\u1eefng thay \u0111\u1ed5i r\u00f5 r\u00e0ng v\u1ec1 \u0111\u1eb7c t\u00ednh v\u00e0 th\u00f4ng s\u1ed1 c\u1ee7a s\u1ea3n ph\u1ea9m, c\u0169ng nh\u01b0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a s\u1ea3n ph\u1ea9m nh\u01b0 b\u00f3ng b\u00e1n d\u1eabn, \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n v\u00e0 m\u00e1y bi\u1ebfn \u00e1p;<\/span><\/span><\/p>\n

\u1ede nhi\u1ec7t \u0111\u1ed9 cao, \u0111\u1ed9 gi\u00e3n n\u1edf c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf kh\u00e1c nhau l\u00e0 kh\u00e1c nhau, \u0111i\u1ec1u n\u00e0y s\u1ebd g\u00e2y ra c\u00e1c khuy\u1ebft t\u1eadt nh\u01b0 l\u1ecfng l\u1ebbo c\u00e1c th\u00e0nh ph\u1ea7n, thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc, h\u00e0n h\u1edf, h\u00e0n gi\u1ea3, oxy h\u00f3a, l\u00e0m m\u1ec1m, n\u00f3ng ch\u1ea3y v\u00e0 h\u1ecfng ph\u1edbt, v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m nh\u01b0 nh\u1ef1a;<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m v\u1eadt li\u1ec7u \u0111\u1ed5i m\u00e0u, chuy\u1ec3n sang m\u00e0u v\u00e0ng (v\u1eadt li\u1ec7u tr\u1eafng), chuy\u1ec3n sang m\u00e0u tr\u1eafng (v\u1eadt li\u1ec7u \u0111en), chuy\u1ec3n sang m\u00e0u tr\u1eafng (v\u1eadt li\u1ec7u \u0111en), gi\u00f2n v\u00e0 v\u1ee1 v\u1ee5n, v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a n\u00f3 nh\u01b0 nh\u1ef1a.<\/span><\/span><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 \u1ee9ng su\u1ea5t tu\u1ea7n ho\u00e0n<\/span><\/span><\/span><\/h1>\n

C\u00e1c th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a <\/span><\/span>\u1ee9ng su\u1ea5t chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/a><\/span><\/h3>\n

C\u00f3 s\u00e1u th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a \u1ee9ng su\u1ea5t chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9: 1) nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean Tu; 2) nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n d\u01b0\u1edbi TL; 3) t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 V; 4) th\u1eddi gian gi\u1eef nhi\u1ec7t \u0111\u1ed9 tr\u00ean Tu; 5) th\u1eddi gian gi\u1eef nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi TL; 6) s\u1ed1 chu k\u1ef3 n.<\/span><\/span><\/p>\n

Ph\u00e2n t\u00edch \u0111\u1eb7c \u0111i\u1ec3m \u1ee9ng su\u1ea5t tu\u1ea7n ho\u00e0n nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/span><\/h3>\n

Trong th\u1eed nghi\u1ec7m \u0111\u1ed9 tin c\u1eady m\u00f4i tr\u01b0\u1eddng, khi chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i, \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao, \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 m\u1ecfi nhi\u1ec7t t\u01b0\u01a1ng t\u00e1c tr\u00ean s\u1ea3n ph\u1ea9m v\u00e0 v\u1eadt li\u1ec7u s\u1ebd gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau. M\u00f4 h\u00ecnh ti\u1ec7n \u00edch \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng \u1edf ch\u1ed7 t\u0103ng ph\u1ea1m vi thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng qu\u00e1 tr\u00ecnh n\u00e0y, do \u0111\u00f3 t\u0103ng c\u01b0\u1eddng \u1ee9ng su\u1ea5t nhi\u1ec7t v\u00e0 t\u0103ng s\u1ed1 chu k\u1ef3, \u0111i\u1ec1u n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u1ee9ng su\u1ea5t k\u00edch th\u00edch.<\/span><\/span><\/p>\n

Trong th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9, t\u00ednh \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a lu\u1ed3ng kh\u00f4ng kh\u00ed (v\u1eadn t\u1ed1c) trong bu\u1ed3ng th\u1eed nghi\u1ec7m l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 r\u1ea5t quan tr\u1ecdng, s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a s\u1ea3n ph\u1ea9m. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi khi nhi\u1ec1u s\u1ea3n ph\u1ea9m th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m c\u00f9ng m\u1ed9t l\u00fac, ph\u1ea3i c\u00f3 kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p gi\u1eefa c\u00e1c s\u1ea3n ph\u1ea9m th\u1eed nghi\u1ec7m v\u00e0 gi\u1eefa c\u00e1c s\u1ea3n ph\u1ea9m th\u1eed nghi\u1ec7m v\u00e0 th\u00e0nh bu\u1ed3ng th\u1eed nghi\u1ec7m, \u0111\u1ec3 lu\u1ed3ng kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 l\u01b0u th\u00f4ng t\u1ef1 do gi\u1eefa c\u00e1c s\u1ea3n ph\u1ea9m th\u1eed nghi\u1ec7m v\u00e0 gi\u1eefa c\u00e1c s\u1ea3n ph\u1ea9m th\u1eed nghi\u1ec7m v\u00e0 th\u00e0nh bu\u1ed3ng.<\/span><\/span><\/p>\n

Trong th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9, khi \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 \u0111\u1ed9 \u1ea9m cao thay \u0111\u1ed5i th\u00e0nh \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 \u1ea9m cao, v\u00ec nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed t\u0103ng nhanh h\u01a1n nhi\u1ec7t \u0111\u1ed9 s\u1ea3n ph\u1ea9m, ng\u01b0ng t\u1ee5 s\u1ebd x\u1ea3y ra tr\u00ean s\u1ea3n ph\u1ea9m khi \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. Ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 c\u00e0ng l\u1edbn, hi\u1ec7n t\u01b0\u1ee3ng ng\u01b0ng t\u1ee5 c\u00e0ng r\u00f5 r\u00e0ng. N\u1ebfu n\u01b0\u1edbc ng\u01b0ng t\u1ee5 kh\u00f4ng \u0111\u01b0\u1ee3c x\u1ea3 k\u1ecbp th\u1eddi, s\u1ebd l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng \u0103n m\u00f2n s\u1ea3n ph\u1ea9m v\u00e0 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u00e1ch \u0111i\u1ec7n. \u0110\u1ed1i v\u1edbi to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb, s\u1ebd d\u1eabn \u0111\u1ebfn gi\u1ea3m \u0111\u1ed9 nh\u1ea1y v\u00e0 \u0111\u1ed9 tr\u00f4i t\u1ea7n s\u1ed1, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/span><\/span><\/p>\n

C\u01a1 ch\u1ebf h\u1ecfng h\u00f3c v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 nh\u1ea1y c\u1ea3m g\u00e2y ra b\u1edfi \u1ee9ng su\u1ea5t tu\u1ea7n ho\u00e0n nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/span><\/h3>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0m cho s\u1ef1 gi\u00e3n n\u1edf c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn bong tr\u00f3c v\u00e0 n\u1ee9t n\u1ebb, v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m c\u1ee7a n\u00f3 nh\u01b0 l\u1edbp s\u01a1n ph\u1ee7;<\/span><\/span><\/p>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0m cho c\u00e1c m\u1ed1i n\u1ed1i c\u00f3 k\u1ebft n\u1ed1i v\u00edt ho\u1eb7c \u0111inh t\u00e1n l\u1ecfng l\u1ebbo v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m nh\u01b0 v\u00edt, b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c t\u00e1n \u0111inh, v.v.;<\/span><\/span><\/p>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0m l\u1ecfng m\u1ed1i gh\u00e9p \u00e9p v\u1edbi l\u1ef1c c\u0103ng c\u01a1 h\u1ecdc kh\u00f4ng \u0111\u1ee7;<\/span><\/span><\/p>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac h\u00e0n c\u1ee7a v\u1eadt li\u1ec7u k\u00e9m ho\u1eb7c g\u00e2y ra m\u1ea1ch h\u1edf v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m nh\u01b0 th\u00e0nh ph\u1ea7n \u0111i\u1ec7n tr\u1edf;<\/span><\/span><\/p>\n

Chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 g\u00e2y ra s\u1ef1 \u0103n m\u00f2n v\u00e0 \u00f4 nhi\u1ec5m c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac (m\u1ed1i h\u00e0n) v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m nh\u01b0 v\u1eadt li\u1ec7u h\u1ee3p kim.<\/span><\/span><\/p>\n

S\u1ed1c nhi\u1ec7t c\u0103ng th\u1eb3ng<\/span><\/span><\/span><\/h1>\n

\u1ee8ng su\u1ea5t t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9, t\u1ee9c l\u00e0 <\/span><\/span>s\u1ed1c nhi\u1ec7t<\/span><\/span><\/a> , c\u00f3 s\u00e1u th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n: 1) gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 tr\u00ean; 2) Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi; 3) Th\u1eddi gian l\u01b0u tr\u00fa \u1edf gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 tr\u00ean; 4) Th\u1eddi gian l\u01b0u tr\u00fa \u1edf gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi; 5) Th\u1eddi gian chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9; 6) S\u1ed1 chu k\u1ef3 s\u1ed1c nhi\u1ec7t \u0111\u1ed9.<\/span><\/span><\/p>\n

C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y s\u1ebd x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a t\u00e1c \u0111\u1ed9ng c\u1ee7a th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 l\u00ean s\u1ea3n ph\u1ea9m. N\u00f3i chung, vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u00f3 l\u1ee3i cho vi\u1ec7c ph\u00e1t hi\u1ec7n ra c\u00e1c khuy\u1ebft t\u1eadt ti\u1ec1m \u1ea9n. Trong th\u1eed nghi\u1ec7m \u0111\u1ed9 tin c\u1eady v\u1ec1 m\u00f4i tr\u01b0\u1eddng, c\u00e1c y\u00eau c\u1ea7u c\u1ee7a th\u1eed nghi\u1ec7m \u1ee9ng su\u1ea5t t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9: t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 l\u1edbn h\u01a1n 15 \u2103 \/ ph\u00fat v\u00e0 th\u1eddi gian chuy\u1ec3n \u0111\u1ed5i l\u00e0 \uff1c2-3 ph\u00fat; \uff1c20-30 gi\u00e2y; \uff1c10 gi\u00e2y, kh\u00e1c v\u1edbi th\u1eed nghi\u1ec7m \u1ee9ng su\u1ea5t chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 \u1edf tr\u00ean. Hi\u1ec7n nay, \u1edf n\u01b0\u1edbc ngo\u00e0i, t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 s\u00e0ng l\u1ecdc \u1ee9ng su\u1ea5t t\u0103ng t\u1ed1c cao \u0111\u00e3 \u0111\u1ea1t 60 \u2103 \/ ph\u00fat. trong c\u00e1c h\u1ed9p t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc ngo\u00e0i, th\u1eddi gian chuy\u1ec3n gi\u1ecf: \uff1c10 gi\u00e2y (truy\u1ec1n qua gi\u1ecf chuy\u1ec3n t\u1ef1 \u0111\u1ed9ng trong h\u1ed9p).<\/span><\/span><\/p>\n

Ph\u00e2n t\u00edch \u0111\u1eb7c tr\u01b0ng c\u1ee7a l\u1ef1c t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p s\u1ed1c nhi\u1ec7t c\u00f3 th\u1ec3 cung c\u1ea5p t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 t\u1ea1o ra \u1ee9ng su\u1ea5t nhi\u1ec7t l\u1edbn. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 s\u00e0ng l\u1ecdc c\u00e1c th\u00e0nh ph\u1ea7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ch t\u00edch h\u1ee3p, nh\u01b0ng c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn kh\u1ea3 n\u0103ng h\u01b0 h\u1ecfng b\u1ed5 sung trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m; \u0110\u1ed1i v\u1edbi vi\u1ec7c b\u1eadt ngu\u1ed3n v\u00e0 gi\u00e1m s\u00e1t, ph\u01b0\u01a1ng ph\u00e1p s\u1ed1c nhi\u1ec7t kh\u00f4ng ti\u1ec7n s\u1eed d\u1ee5ng ho\u1eb7c th\u1eadm ch\u00ed kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau gi\u00e1m s\u00e1t to\u00e0n di\u1ec7n<\/span><\/span><\/p>\n

\n
<\/div>\n
<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

C\u0103ng th\u1eb3ng nhi\u1ec7t \u0111\u1ed9 cao C\u00e1c th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao C\u00f3 hai th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a \u1ee9ng su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao: (1) nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n tr\u00ean (TU); (2) Th\u1eddi gian (T). Ngo\u00e0i ra, c\u00f2n c\u00f3 m\u1ed9t th\u00f4ng s\u1ed1 kh\u00e1c c\u1ea7n xem x\u00e9t: nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (TE),<\/p>\n","protected":false},"author":1,"featured_media":19945,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-cong-nghe"],"acf":[],"_links":{"self":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=19944"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19944\/revisions"}],"predecessor-version":[{"id":22403,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19944\/revisions\/22403"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19945"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}