{"id":4638,"date":"2019-02-21T02:31:31","date_gmt":"2019-02-21T02:31:31","guid":{"rendered":"https:\/\/phelieu247.com\/?p=4638"},"modified":"2020-02-20T15:59:27","modified_gmt":"2020-02-20T08:59:27","slug":"loi-ich-cua-nhom","status":"publish","type":"post","link":"https:\/\/phelieu247.com\/en\/loi-ich-cua-nhom\/","title":{"rendered":"L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m V\u00e0 \u1ee8ng D\u1ee5ng Nh\u00f4m Trong C\u00e1c Ng\u00e0nh C\u00f4ng Nghi\u1ec7p M\u0169i Nh\u1ecdn"},"content":{"rendered":"

Sorry, this entry is only available in Ti\u1ebfng Vi\u1ec7t<\/a>. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language.<\/p>

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Nh\u00f4m l\u00e0 nguy\u00ean t\u1ed1 kim lo\u1ea1i c\u00f3 nhi\u1ec1u nh\u1ea5t trong l\u1edbp v\u1ecf Tr\u00e1i \u0111\u1ea5t v\u00e0 l\u00e0 nguy\u00ean t\u1ed1 ph\u1ed5 bi\u1ebfn th\u1ee9 ba n\u00f3i chung.<\/em> V\u00e0 \u0111\u00f3 c\u0169ng l\u00e0 m\u1ed9t \u0111i\u1ec1u t\u1ed1t, b\u1edfi v\u00ec l\u1ee3i \u00edch c\u1ee7a nh\u00f4m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ea5t nhi\u1ec1u<\/strong><\/a>. Kh\u00f4ng c\u00f3 kim lo\u1ea1i n\u00e0o kh\u00e1c c\u00f3 th\u1ec3 so s\u00e1nh v\u1edbi Nh\u00f4m khi n\u00f3i \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a n\u00f3 trong \u0111\u1eddi s\u1ed1ng h\u1eb1ng ng\u00e0y c\u0169ng nh\u01b0 nh\u1eefng \u1ee9ng d\u1ee5ng m\u00e0 c\u00f3 s\u1ef1 g\u00f3p m\u1eb7t c\u1ee7a nh\u00f4m trong vi\u1ec7c \u00e1p d\u1ee5ng khoa h\u1ecdc c\u00f4ng ngh\u1ec7. Kho\u1ea3ng 41 tri\u1ec7u t\u1ea5n \u0111\u01b0\u1ee3c luy\u1ec7n m\u1ed7i n\u0103m v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t lo\u1ea1t c\u00e1c \u1ee9ng d\u1ee5ng.\u00a0T\u1eeb th\u00e2n xe \u0111\u1ebfn lon bia, v\u00e0 t\u1eeb d\u00e2y c\u00e1p \u0111i\u1ec7n \u0111\u1ebfn v\u1ecf m\u00e1y bay, nh\u00f4m l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t l\u1edbn trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta.<\/p>\n

C\u00f9ng \u0110i T\u00ecm Hi\u1ec3u V\u1ec1 Lo\u1ea1i Kim Lo\u1ea1i \u0110\u1eb7c Bi\u1ec7t N\u00e0y Nh\u00e9!<\/strong><\/span><\/h2>\n

\"L\u1ee3i<\/p>\n

Nh\u00f4m l\u00e0 m\u1ed9t kim lo\u1ea1i nh\u1eb9, d\u1eabn \u0111i\u1ec7n cao, ph\u1ea3n x\u1ea1 v\u00e0 kh\u00f4ng \u0111\u1ed9c h\u1ea1i, c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng gia c\u00f4ng.\u00a0\u0110\u1ed9 b\u1ec1n v\u00e0 nhi\u1ec1u \u0111\u1eb7c t\u00ednh c\u00f3 l\u1ee3i c\u1ee7a kim lo\u1ea1i l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng cho nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>\n

T\u00ednh ch\u1ea5t<\/strong><\/span><\/p>\n

\u00bb\u00bb\u00bb<\/span> Bi\u1ec3u t\u01b0\u1ee3ng nguy\u00ean t\u1eed: Al<\/p>\n

\u00bb\u00bb\u00bb<\/span> S\u1ed1 nguy\u00ean t\u1eed: 13<\/p>\n

\u00bb\u00bb\u00bb<\/span> Lo\u1ea1i nguy\u00ean t\u1ed1: Kim lo\u1ea1i sau chuy\u1ec3n ti\u1ebfp<\/p>\n

\u00bb\u00bb\u00bb<\/span> M\u1eadt \u0111\u1ed9: 2,70 g \/ cm\u00a03<\/p>\n

\u00bb\u00bb\u00bb<\/span> \u0110i\u1ec3m n\u00f3ng ch\u1ea3y: 1220,58 \u00b0 F (660,32 \u00b0 C)<\/p>\n

\u00bb\u00bb\u00bb<\/span> \u0110i\u1ec3m s\u00f4i: 4566 \u00b0 F (2519 \u00b0 C)<\/p>\n

\u00bb\u00bb\u00bb<\/span> \u0110\u1ed9 c\u1ee9ng c\u1ee7a Moh: 2,75<\/p>\n

M\u1ed9t s\u1ed1 l\u1ee3i \u00edch c\u1ee7a nh\u00f4m c\u00f3 th\u1ec3 kh\u00f4ng r\u00f5 r\u00e0ng ngay l\u1eadp t\u1ee9c;\u00a0v\u00ed d\u1ee5, b\u1ea1n c\u00f3 bi\u1ebft nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t th\u1ee7y tinh kh\u00f4ng?\u00a0V\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, nh\u00f4m c\u0169ng c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf 100% m\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t t\u00ednh ch\u1ea5t t\u1ef1 nhi\u00ean c\u1ee7a n\u00f3.\u00a0N\u00f3 c\u0169ng m\u1ea5t 5% n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 t\u00e1i ch\u1ebf nh\u00f4m ph\u1ebf li\u1ec7u sau \u0111\u00f3 nh\u1eefng g\u00ec \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t nh\u00f4m m\u1edbi.<\/p>\n

Nh\u00f4m r\u1ea5t ph\u1ed5 bi\u1ebfn v\u00ec n\u00f3 l\u00e0:<\/strong><\/span><\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>Nh\u1eb9<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>M\u1ea1nh<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>Ch\u1ed1ng \u0103n m\u00f2n<\/p>\n

\u00bb\u00bb\u00bb <\/span>B\u1ec1n ch\u1eb7t<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>D\u1ec5 u\u1ed1n<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>D\u1ec5 u\u1ed1n<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span>D\u1eabn \u0111i\u1ec7n<\/p>\n

\u00bb\u00bb\u00bb<\/span> <\/span> Kh\u00f4ng m\u00f9i<\/p>\n

L\u1ecbch S\u1eed H\u00ecnh Th\u00e0nh Kim Lo\u1ea1i Nh\u00f4m<\/strong><\/span><\/h3>\n

C\u00e1c h\u1ee3p ch\u1ea5t nh\u00f4m \u0111\u01b0\u1ee3c ng\u01b0\u1eddi Ai C\u1eadp c\u1ed5 \u0111\u1ea1i s\u1eed d\u1ee5ng l\u00e0m thu\u1ed1c nhu\u1ed9m, m\u1ef9 ph\u1ea9m v\u00e0 thu\u1ed1c, nh\u01b0ng ph\u1ea3i \u0111\u1ebfn 5000 n\u0103m sau, con ng\u01b0\u1eddi m\u1edbi ph\u00e1t hi\u1ec7n ra c\u00e1ch ch\u1ebf t\u1ea1o nh\u00f4m kim lo\u1ea1i nguy\u00ean ch\u1ea5t. Kh\u00f4ng c\u00f3 g\u00ec \u0111\u00e1ng ng\u1ea1c nhi\u00ean, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t kim lo\u1ea1i nh\u00f4m tr\u00f9ng kh\u1edbp v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a \u0111i\u1ec7n trong th\u1ebf k\u1ef7 19, v\u00ec luy\u1ec7n nh\u00f4m \u0111\u00f2i h\u1ecfi m\u1ed9t l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u00e1ng k\u1ec3.<\/p>\n

M\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 l\u1edbn trong s\u1ea3n xu\u1ea5t nh\u00f4m xu\u1ea5t hi\u1ec7n v\u00e0o n\u0103m 1886 khi Charles Martin Hall ph\u00e1t hi\u1ec7n ra r\u1eb1ng nh\u00f4m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng kh\u1eed \u0111i\u1ec7n ph\u00e2n. Cho \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m \u0111\u00f3, nh\u00f4m hi\u1ebfm h\u01a1n v\u00e0 \u0111\u1eaft h\u01a1n v\u00e0ng. Tuy nhi\u00ean, trong v\u00f2ng hai n\u0103m k\u1ec3 t\u1eeb khi ph\u00e1t hi\u1ec7n ra Hall, c\u00e1c c\u00f4ng ty nh\u00f4m \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp \u1edf ch\u00e2u \u00c2u v\u00e0 ch\u00e2u M\u1ef9.<\/p>\n

Trong th\u1ebf k\u1ef7 20, nhu c\u1ea7u nh\u00f4m t\u0103ng tr\u01b0\u1edfng \u0111\u00e1ng k\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong ng\u00e0nh v\u1eadn t\u1ea3i v\u00e0 \u0111\u00f3ng g\u00f3i. M\u1eb7c d\u00f9 k\u1ef9 thu\u1eadt s\u1ea3n xu\u1ea5t kh\u00f4ng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3, nh\u01b0ng ch\u00fang \u0111\u00e3 tr\u1edf n\u00ean hi\u1ec7u qu\u1ea3 h\u01a1n \u0111\u00e1ng k\u1ec3. Trong 100 n\u0103m qua, l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 \u0111\u1ec3 s\u1ea3n xu\u1ea5t m\u1ed9t \u0111\u01a1n v\u1ecb nh\u00f4m \u0111\u00e3 gi\u1ea3m 70%.<\/p>\n

S\u1ea3n Xu\u1ea5t Nh\u00f4m<\/strong><\/span><\/h3>\n

S\u1ea3n xu\u1ea5t nh\u00f4m t\u1eeb qu\u1eb7ng ph\u1ee5 thu\u1ed9c v\u00e0o nh\u00f4m oxit (Al2<\/sub>O3<\/sub>), \u0111\u01b0\u1ee3c khai th\u00e1c t\u1eeb qu\u1eb7ng bauxite. Bauxite th\u01b0\u1eddng ch\u1ee9a 30-60% oxit nh\u00f4m (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 alumina) v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y g\u1ea7n b\u1ec1 m\u1eb7t tr\u00e1i \u0111\u1ea5t. Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1ch th\u00e0nh hai ph\u1ea7n<\/p>\n

(1) \u2013 Khai th\u00e1c alumina t\u1eeb bauxite<\/p>\n

(2) \u2013 S\u1ef1 luy\u1ec7n kim lo\u1ea1i nh\u00f4m t\u1eeb alumina<\/p>\n

Vi\u1ec7c t\u00e1ch alumina th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng quy tr\u00ecnh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Quy tr\u00ecnh c\u1ee7a Bayer. \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c nghi\u1ec1n bauxite th\u00e0nh b\u1ed9t, tr\u1ed9n v\u1edbi n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o ra b\u00f9n, \u0111un n\u00f3ng v\u00e0 th\u00eam x\u00fat \u0103n da (NaOH). C\u00e1c soda \u0103n da h\u00f2a tan alumina, cho ph\u00e9p n\u00f3 \u0111i qua c\u00e1c b\u1ed9 l\u1ecdc, \u0111\u1ec3 l\u1ea1i c\u00e1c t\u1ea1p ch\u1ea5t ph\u00eda sau.<\/p>\n

Dung d\u1ecbch aluminate sau \u0111\u00f3 \u0111\u01b0\u1ee3c d\u1eabn l\u01b0u v\u00e0o b\u1ec3 l\u1ecdc b\u1ee5i, n\u01a1i c\u00e1c h\u1ea1t nh\u00f4m hydroxit \u0111\u01b0\u1ee3c th\u00eam v\u00e0o d\u01b0\u1edbi d\u1ea1ng ‘h\u1ea1t gi\u1ed1ng’. S\u1ef1 khu\u1ea5y tr\u1ed9n v\u00e0 l\u00e0m ngu\u1ed9i d\u1eabn \u0111\u1ebfn k\u1ebft t\u1ee7a nh\u00f4m hydroxit tr\u00ean v\u1eadt li\u1ec7u h\u1ea1t, sau \u0111\u00f3 \u0111\u01b0\u1ee3c nung n\u00f3ng v\u00e0 s\u1ea5y kh\u00f4 \u0111\u1ec3 t\u1ea1o ra alumina.<\/p>\n

C\u00e1c t\u1ebf b\u00e0o \u0111i\u1ec7n ph\u00e2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 luy\u1ec7n nh\u00f4m t\u1eeb alumina trong qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi Charles Martin Hall. Alumina \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00e1c t\u1ebf b\u00e0o \u0111\u01b0\u1ee3c h\u00f2a tan trong m\u1ed9t b\u1ec3 dung d\u1ecbch cryolite n\u00f3ng ch\u1ea3y \u1edf 1742F \u00b0 (950C \u00b0).<\/p>\n

M\u1ed9t d\u00f2ng \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp t\u1eeb 10.000 \u2013 300.000A \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb c\u00e1c c\u1ef1c d\u01b0\u01a1ng carbon trong t\u1ebf b\u00e0o qua h\u1ed7n h\u1ee3p \u0111\u1ebfn v\u1ecf cat\u1ed1t. D\u00f2ng \u0111i\u1ec7n n\u00e0y ph\u00e1 v\u1ee1 alumina th\u00e0nh nh\u00f4m v\u00e0 oxy. Oxy ph\u1ea3n \u1ee9ng v\u1edbi carbon \u0111\u1ec3 t\u1ea1o ra carbon dioxide, trong khi nh\u00f4m b\u1ecb thu h\u00fat v\u00e0o l\u1edbp l\u00f3t t\u1ebf b\u00e0o cat\u1ed1t carbon.<\/p>\n

Nh\u00f4m sau \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thu th\u1eadp v\u00e0 \u0111\u01b0a \u0111\u1ebfn c\u00e1c l\u00f2 nung n\u01a1i c\u00f3 th\u1ec3 th\u00eam v\u1eadt li\u1ec7u nh\u00f4m c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf. Kho\u1ea3ng m\u1ed9t ph\u1ea7n ba nh\u00f4m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t ng\u00e0y nay \u0111\u1ebfn t\u1eeb v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf. Theo kh\u1ea3o s\u00e1t \u0111\u1ecba ch\u1ea5t Hoa K\u1ef3, c\u00e1c qu\u1ed1c gia s\u1ea3n xu\u1ea5t nh\u00f4m l\u1edbn nh\u1ea5t trong n\u0103m 2010 l\u00e0 Trung Qu\u1ed1c, Nga v\u00e0 Canada.<\/p>\n

L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m V\u00e0 Nh\u1eefng C\u00f4ng D\u1ee5ng Ph\u1ed5 Bi\u1ebfn C\u1ee7a Nh\u00f4m<\/strong><\/span><\/h2>\n

C\u00e1c l\u1ee3i \u00edch c\u1ee7a nh\u00f4m c\u00f3 qu\u00e1 nhi\u1ec1u \u0111\u1ec3 li\u1ec7t k\u00ea v\u00e0 do c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t c\u1ee7a kim lo\u1ea1i \u0111ang t\u00ecm ki\u1ebfm c\u00e1c \u1ee9ng d\u1ee5ng m\u1edbi m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean. N\u00f3i chung, nh\u00f4m v\u00e0 nhi\u1ec1u h\u1ee3p kim c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ba ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u00ednh: v\u1eadn chuy\u1ec3n, \u0111\u00f3ng g\u00f3i, v\u00e0 x\u00e2y d\u1ef1ng.<\/p>\n

Nh\u00f4m, \u1edf nhi\u1ec1u d\u1ea1ng v\u00e0 h\u1ee3p kim kh\u00e1c nhau, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac (khung v\u00e0 th\u00e2n) c\u1ee7a m\u00e1y bay, \u00f4 t\u00f4, t\u00e0u h\u1ecfa v\u00e0 t\u00e0u thuy\u1ec1n. C\u00f3 \u0111\u1ebfn 70% m\u1ed9t s\u1ed1 m\u00e1y bay th\u01b0\u01a1ng m\u1ea1i bao g\u1ed3m c\u00e1c h\u1ee3p kim nh\u00f4m (\u0111\u01b0\u1ee3c \u0111o b\u1eb1ng tr\u1ecdng l\u01b0\u1ee3ng). Cho d\u00f9 b\u1ed9 ph\u1eadn \u0111\u00f2i h\u1ecfi ph\u1ea3i ch\u1ecbu \u1ee9ng su\u1ea5t ho\u1eb7c ch\u1ed1ng \u0103n m\u00f2n, ho\u1eb7c ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao, lo\u1ea1i h\u1ee3p kim \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee7a t\u1eebng b\u1ed9 ph\u1eadn.<\/p>\n

Kho\u1ea3ng 20% \u200b\u200bt\u1ea5t c\u1ea3 nh\u00f4m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i. Gi\u1ea5y nh\u00f4m l\u00e0 v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i ph\u00f9 h\u1ee3p cho th\u1ef1c ph\u1ea9m v\u00ec n\u00f3 kh\u00f4ng \u0111\u1ed9c h\u1ea1i, trong khi \u0111\u00f3 n\u00f3 c\u0169ng l\u00e0 ch\u1ea5t b\u1ecbt k\u00edn th\u00edch h\u1ee3p cho c\u00e1c s\u1ea3n ph\u1ea9m h\u00f3a h\u1ecdc v\u00ec kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng th\u1ea5p v\u00e0 kh\u00f4ng th\u1ea5m \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng, n\u01b0\u1edbc v\u00e0 oxy. Ch\u1ec9 ri\u00eang t\u1ea1i M\u1ef9, kho\u1ea3ng 100 t\u1ef7 lon nh\u00f4m \u0111\u01b0\u1ee3c xu\u1ea5t x\u01b0\u1edfng m\u1ed7i n\u0103m. H\u01a1n m\u1ed9t n\u1eeda trong s\u1ed1 n\u00e0y cu\u1ed1i c\u00f9ng \u0111i v\u00e0o quy tr\u00ecnh t\u00e1i ch\u1ebf ph\u1ebf li\u1ec7u nh\u00f4m<\/strong><\/a>.<\/p>\n

Do \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, kho\u1ea3ng 15% nh\u00f4m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t m\u1ed7i n\u0103m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng x\u00e2y d\u1ef1ng. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m c\u1eeda s\u1ed5 v\u00e0 khung c\u1eeda, l\u1ee3p, v\u00e1ch, v\u00e0 khung k\u1ebft c\u1ea5u, c\u0169ng nh\u01b0 m\u00e1ng x\u1ed1i, c\u1eeda ch\u1edbp v\u00e0 c\u1eeda nh\u00e0 \u0111\u1ec3 xe.<\/p>\n

\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a nh\u00f4m c\u0169ng cho ph\u00e9p n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c d\u00e2y d\u1eabn \u0111\u01b0\u1eddng d\u00e0i. \u0110\u01b0\u1ee3c gia c\u1ed1 b\u1eb1ng th\u00e9p, h\u1ee3p kim nh\u00f4m c\u00f3 hi\u1ec7u qu\u1ea3 chi ph\u00ed cao h\u01a1n \u0111\u1ed3ng v\u00e0 gi\u1ea3m \u0111\u1ed9 v\u00f5ng do tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 c\u1ee7a ch\u00fang.<\/p>\n

C\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c cho nh\u00f4m bao g\u1ed3m v\u1ecf v\u00e0 t\u1ea3n nhi\u1ec7t cho thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, c\u1ed9t \u0111\u00e8n \u0111\u01b0\u1eddng, c\u1ea5u tr\u00fac \u0111\u1ec9nh gi\u00e0n khoan d\u1ea7u, c\u1eeda s\u1ed5 tr\u00e1ng nh\u00f4m, d\u1ee5ng c\u1ee5 n\u1ea5u \u0103n, g\u1eady b\u00f3ng ch\u00e0y v\u00e0 thi\u1ebft b\u1ecb an to\u00e0n ph\u1ea3n chi\u1ebfu.<\/p>\n

L\u1ee3i \u00edch c\u1ee7a Nh\u00f4m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ch\u1ee7 y\u1ebfu trong c\u00e1c ng\u00e0nh:<\/strong><\/span><\/p>\n

\u00bb\u00bb\u00bb <\/span>V\u1eadn chuy\u1ec3n<\/p>\n

\u00bb\u00bb\u00bb<\/span> X\u00e2y d\u1ef1ng<\/p>\n

\u00bb\u00bb\u00bb<\/span> \u0110i\u1ec7n<\/p>\n

\u00bb\u00bb\u00bb<\/span> H\u00e0ng ti\u00eau d\u00f9ng<\/p>\n

L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m Trong Ng\u00e0nh V\u1eadn Chuy\u1ec3n<\/strong><\/span><\/h3>\n

Nh\u00f4m\u00a0\u0111\u01b0\u1ee3c\u00a0s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh li\u00ean quan \u0111\u1ebfn giao th\u00f4ng v\u1eadn t\u1ea3i. V\u1edbi \u01b0u \u0111i\u1ec3m l\u00e0 c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, nh\u00f4m s\u1ebd c\u1ea7n \u00edt l\u1ef1c h\u01a1n \u0111\u1ec3 di chuy\u1ec3n xe, d\u1eabn \u0111\u1ebfn hi\u1ec7u qu\u1ea3 nhi\u00ean li\u1ec7u l\u1edbn h\u01a1n.\u00a0M\u1eb7c d\u00f9 nh\u00f4m kh\u00f4ng ph\u1ea3i l\u00e0 kim lo\u1ea1i m\u1ea1nh nh\u1ea5t, nh\u01b0ng h\u1ee3p kim nh\u00f4m v\u1edbi c\u00e1c kim lo\u1ea1i kh\u00e1c gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh, \u0111\u1ed9 c\u1ee9ng cho n\u00f3.\u00a0Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 l\u00e0 m\u1ed9t h\u1eefu \u00edch, lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a l\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n n\u1eb7ng v\u00e0 \u0111\u1eaft ti\u1ec1n.<\/p>\n

Trong khi ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4 v\u1eabn ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o th\u00e9p, n\u1ed7 l\u1ef1c t\u0103ng hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng nhi\u00ean li\u1ec7u v\u00e0 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i CO2<\/sub> \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng nh\u00f4m r\u1ed9ng r\u00e3i h\u01a1n nhi\u1ec1u.\u00a0C\u00e1c chuy\u00ean gia d\u1ef1 \u0111o\u00e1n r\u1eb1ng h\u00e0m l\u01b0\u1ee3ng nh\u00f4m trung b\u00ecnh trong xe h\u01a1i s\u1ebd t\u0103ng 60% v\u00e0o n\u0103m 2025.<\/p>\n

\"\"
M\u1ed9t chuy\u1ebfn t\u00e0u E6 c\u1ee7a Shinkansen<\/figcaption><\/figure>\n

H\u00ecnh \u1ea3nh thu\u1ed9c b\u1ea3n quy\u1ec1n c\u1ee7a Pixabay<\/em><\/span><\/p>\n

C\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng s\u1eaft t\u1ed1c \u0111\u1ed9 cao nh\u01b0 Shinkansen \u1edf Nh\u1eadt B\u1ea3n v\u00e0 Maglev \u1edf Th\u01b0\u1ee3ng H\u1ea3i c\u0169ng \u00e1p d\u1ee5ng nh\u00f4m v\u00e0o trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i.\u00a0L\u1ee3i \u00edch c\u1ee7a Nh\u00f4m cho ph\u00e9p c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a t\u00e0u, gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng ma s\u00e1t.<\/p>\n

Nh\u00f4m c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ‘kim lo\u1ea1i c\u00f3 c\u00e1nh’ v\u00ec\u00a0n\u00f3 l\u00fd t\u01b0\u1edfng cho m\u00e1y bay;\u00a0m\u1ed9t l\u1ea7n n\u1eefa, do nh\u1eb9, m\u1ea1nh m\u1ebd v\u00e0 linh ho\u1ea1t.\u00a0Tr\u00ean th\u1ef1c t\u1ebf, nh\u00f4m \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c khung c\u1ee7a kh\u00ed c\u1ea7u Zeppelin tr\u01b0\u1edbc khi m\u00e1y bay th\u1eadm ch\u00ed \u0111\u01b0\u1ee3c ph\u00e1t minh.\u00a0Ng\u00e0y nay, m\u00e1y bay hi\u1ec7n \u0111\u1ea1i s\u1eed d\u1ee5ng h\u1ee3p kim nh\u00f4m trong su\u1ed1t, t\u1eeb th\u00e2n m\u00e1y bay \u0111\u1ebfn c\u00e1c d\u1ee5ng c\u1ee5 bu\u1ed3ng l\u00e1i.\u00a0Ngay c\u1ea3 t\u00e0u v\u0169 tr\u1ee5, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00e0u con thoi v\u0169 tr\u1ee5, ch\u1ee9a 50% \u0111\u1ebfn 90% h\u1ee3p kim nh\u00f4m trong c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a ch\u00fang.<\/p>\n

L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m Trong Ng\u00e0nh X\u00e2y D\u1ef1ng<\/strong><\/span><\/h3>\n

C\u00e1c t\u00f2a nh\u00e0 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u00f4m h\u1ea7u nh\u01b0 kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec do kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a nh\u00f4m.\u00a0Nh\u00f4m c\u0169ng c\u00f3 hi\u1ec7u qu\u1ea3 nhi\u1ec7t, gi\u1eef cho nh\u00e0 \u1ea5m v\u00e0o m\u00f9a \u0111\u00f4ng v\u00e0 m\u00e1t v\u00e0o m\u00f9a h\u00e8.\u00a0Th\u00eam m\u1ed9t th\u1ef1c t\u1ebf l\u00e0 nh\u00f4m c\u00f3 b\u1ec1 m\u1eb7t \u0111\u1eb9p m\u1eaft v\u00e0 c\u00f3 th\u1ec3 u\u1ed1n cong, c\u1eaft v\u00e0 h\u00e0n v\u1edbi b\u1ea5t k\u1ef3 h\u00ecnh d\u1ea1ng mong mu\u1ed1n n\u00e0o, n\u00f3 cho ph\u00e9p c\u00e1c ki\u1ebfn \u200b\u200btr\u00fac s\u01b0 hi\u1ec7n \u0111\u1ea1i t\u1ef1 do kh\u00f4ng gi\u1edbi h\u1ea1n \u0111\u1ec3 t\u1ea1o ra c\u00e1c t\u00f2a nh\u00e0 kh\u00f4ng th\u1ec3 l\u00e0m t\u1eeb g\u1ed7, nh\u1ef1a ho\u1eb7c th\u00e9p.<\/p>\n

\"\"
Trung t\u00e2m th\u1ec3 thao d\u01b0\u1edbi n\u01b0\u1edbc London<\/figcaption><\/figure>\n

H\u00ecnh \u1ea3nh b\u1ea3n quy\u1ec1n thu\u1ed9c Barrisol.com<\/em><\/span><\/p>\n

T\u00f2a nh\u00e0 \u0111\u1ea7u ti\u00ean trong \u0111\u00f3 nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0 T\u00f2a nh\u00e0 Empire State \u1edf New York, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u00e0o n\u0103m 1931. Ng\u00e0y nay, nh\u00f4m th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c t\u00f2a nh\u00e0 v\u00e0 c\u1ea7u cao t\u1ea7ng.\u00a0Tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n c\u1ee7a nh\u00f4m gi\u00fap l\u00e0m vi\u1ec7c d\u1ec5 d\u00e0ng h\u01a1n, nhanh h\u01a1n v\u00e0 thu\u1eadn ti\u1ec7n h\u01a1n.\u00a0N\u00f3 c\u0169ng gi\u00fap gi\u1ea3m chi ph\u00ed kh\u00e1c.\u00a0M\u1ed9t t\u00f2a nh\u00e0 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng th\u00e9p s\u1ebd \u0111\u00f2i h\u1ecfi n\u1ec1n m\u00f3ng s\u00e2u h\u01a1n nhi\u1ec1u do tr\u1ecdng l\u01b0\u1ee3ng t\u0103ng th\u00eam, s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed x\u00e2y d\u1ef1ng.<\/p>\n

C\u00e1c t\u00f2a nh\u00e0 hi\u1ec7n \u0111\u1ea1i \u0111\u00e1ng ch\u00fa \u00fd \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u00f4m bao g\u1ed3m tr\u1ee5 s\u1edf Ng\u00e2n h\u00e0ng Trung Qu\u1ed1c t\u1ea1i H\u1ed3ng K\u00f4ng v\u00e0 Trung t\u00e2m th\u1ec3 thao d\u01b0\u1edbi n\u01b0\u1edbc London c\u1ee7a Zaha Hadid \u1edf London.<\/p>\n

L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m Trong Ng\u00e0nh \u0110i\u1ec7n<\/strong><\/span><\/h3>\n

M\u1eb7c d\u00f9 n\u00f3 ch\u1ec9 c\u00f3 63% \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a\u00a0\u0111\u1ed3ng, nh\u01b0ng m\u1eadt \u0111\u1ed9 th\u1ea5p c\u1ee7a nh\u00f4m l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n \u0111\u01b0\u1eddng d\u00e0i.\u00a0N\u1ebfu \u0111\u1ed3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, c\u00e1c c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 s\u1ebd n\u1eb7ng h\u01a1n, nhi\u1ec1u h\u01a1n v\u00e0 \u0111\u1eaft h\u01a1n.\u00a0Nh\u00f4m c\u0169ng d\u1ec5 u\u1ed1n h\u01a1n \u0111\u1ed3ng, cho ph\u00e9p n\u00f3 \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh d\u00e2y d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u.\u00a0Cu\u1ed1i c\u00f9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 gi\u00fap b\u1ea3o v\u1ec7 d\u00e2y kh\u1ecfi c\u00e1c y\u1ebfu t\u1ed1.<\/p>\n

Ngo\u00e0i \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n v\u00e0 c\u00e1p, nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed9ng c\u01a1, thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.\u00a0\u0102ng-ten truy\u1ec1n h\u00ecnh v\u00e0 \u0111\u0129a v\u1ec7 tinh, th\u1eadm ch\u00ed m\u1ed9t s\u1ed1 b\u00f3ng \u0111\u00e8n LED \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u00f4m.<\/p>\n

L\u1ee3i \u00cdch C\u1ee7a Nh\u00f4m Trong H\u00e0ng ti\u00eau d\u00f9ng<\/strong><\/span><\/h3>\n

Xu\u1ea5t hi\u1ec7n nh\u00f4m\u00a0l\u00e0 l\u00fd do n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean trong h\u00e0ng ti\u00eau d\u00f9ng.<\/p>\n

\u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, m\u00e1y t\u00ednh x\u00e1ch tay v\u00e0 TV m\u00e0n h\u00ecnh ph\u1eb3ng \u0111ang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nh\u00f4m ng\u00e0y c\u00e0ng t\u0103ng.\u00a0S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a n\u00f3 l\u00e0m cho c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i tr\u00f4ng b\u00f3ng b\u1ea9y v\u00e0 tinh t\u1ebf trong khi nh\u1eb9 v\u00e0 b\u1ec1n.\u00a0\u0110\u00f3 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o c\u1ee7a h\u00ecnh th\u1ee9c v\u00e0 ch\u1ee9c n\u0103ng r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng.\u00a0Ng\u00e0y c\u00e0ng nhi\u1ec1u, nh\u00f4m \u0111ang thay th\u1ebf c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ef1a v\u00e0 th\u00e9p, v\u00ec n\u00f3 m\u1ea1nh h\u01a1n v\u00e0 c\u1ee9ng h\u01a1n nh\u1ef1a v\u00e0 nh\u1eb9 h\u01a1n th\u00e9p.\u00a0N\u00f3 c\u0169ng cho ph\u00e9p nhi\u1ec7t ti\u00eau tan nhanh ch\u00f3ng, gi\u1eef cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00f4ng b\u1ecb qu\u00e1 n\u00f3ng.<\/p>\n

\"\"
Macbook c\u1ee7a Apple<\/figcaption><\/figure>\n

H\u00ecnh \u1ea3nh b\u1ea3n quy\u1ec1n thu\u1ed9c Pixabay<\/em><\/span><\/p>\n

Apple s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn ch\u1ee7 y\u1ebfu b\u1eb1ng nh\u00f4m trong iPhone v\u00e0 MacBook.\u00a0C\u00e1c th\u01b0\u01a1ng hi\u1ec7u \u0111i\u1ec7n t\u1eed cao c\u1ea5p kh\u00e1c nh\u01b0 nh\u00e0 s\u1ea3n xu\u1ea5t \u00e2m thanh Bang & Olufsen c\u0169ng r\u1ea5t th\u00edch nh\u00f4m.<\/p>\n

C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf n\u1ed9i th\u1ea5t th\u00edch s\u1eed d\u1ee5ng nh\u00f4m v\u00ec n\u00f3 d\u1ec5 t\u1ea1o h\u00ecnh v\u00e0 tr\u00f4ng r\u1ea5t tuy\u1ec7t.\u00a0C\u00e1c m\u1eb7t h\u00e0ng n\u1ed9i th\u1ea5t \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u00f4m bao g\u1ed3m b\u00e0n, gh\u1ebf, \u0111\u00e8n, khung tranh v\u00e0 b\u1ea3ng trang tr\u00ed.<\/p>\n

T\u1ea5t nhi\u00ean, gi\u1ea5y b\u1ea1c trong nh\u00e0 b\u1ebfp c\u1ee7a b\u1ea1n l\u00e0 nh\u00f4m, c\u0169ng nh\u01b0 n\u1ed3i v\u00e0 ch\u1ea3o r\u00e1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u00f4m.\u00a0C\u00e1c s\u1ea3n ph\u1ea9m nh\u00f4m n\u00e0y d\u1eabn nhi\u1ec7t t\u1ed1t, kh\u00f4ng \u0111\u1ed9c h\u1ea1i, ch\u1ed1ng g\u1ec9 v\u00e0 d\u1ec5 lau ch\u00f9i.<\/p>\n

Lon nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng.\u00a0Coca-Cola v\u00e0 Pepsi \u0111\u00e3 s\u1eed d\u1ee5ng lon nh\u00f4m t\u1eeb n\u0103m 1967.<\/p>\n

\n
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V\u1edbi nh\u1eefng l\u1ee3i \u00edch c\u1ee7a Nh\u00f4m nh\u01b0 th\u1ebf, b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i suy ngh\u0129 l\u1ea1i nh\u1eefng ph\u1ebf li\u1ec7u nh\u00f4m \u0111\u00e3 v\u1ee9t \u0111i. B\u1ea1n c\u00f3 th\u1ec3 bi\u1ebfn nh\u1eefng v\u1eadt li\u1ec7u h\u1eefu \u00edch \u0111\u00f3 chuy\u1ec3n h\u00f3a th\u00e0nh ti\u1ec1n m\u1eb7t v\u1edbi d\u1ecbch v\u1ee5 thu mua ph\u1ebf li\u1ec7u Nh\u00f4m<\/strong><\/a>. H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng cu\u1ed9c s\u1ed1ng c\u1ee7a b\u1ea1n h\u1eefu \u00edch v\u1edbi t\u1eebng chi ti\u1ebft nh\u1ecf nh\u1ea5t trong cu\u1ed9c s\u1ed1ng.<\/p>\n

Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/p>\n

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Sorry, this entry is only available in Ti\u1ebfng Vi\u1ec7t. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. 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