{"id":95,"date":"2017-09-05T14:22:01","date_gmt":"2017-09-05T07:22:01","guid":{"rendered":"http:\/\/localhost\/RT-Aug\/?p=95"},"modified":"2024-08-13T15:55:10","modified_gmt":"2024-08-13T08:55:10","slug":"thep-ong-la-gi-phan-loai-thep-ong-tren-thi-truong-hien-nay","status":"publish","type":"post","link":"https:\/\/thepxaydungtoancau.vn\/?p=95","title":{"rendered":"Th\u00e9p \u1ed0ng l\u00e0 G\u00ec? Ph\u00e2n Lo\u1ea1i Th\u00e9p \u1ed0ng Tr\u00ean Th\u1ecb Tr\u01b0\u1eddng Hi\u1ec7n Nay"},"content":{"rendered":"
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<\/div>\n<\/header>\n
\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1 ph\u1ed5 bi\u1ebfn trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p x\u00e2y d\u1ef1ng, c\u00f4ng ngh\u1ec7 k\u1ef9 thu\u1eadt b\u1edfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n cao.\u00a0Th\u00e9p \u1ed1ng\u00a0<\/strong>th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb h\u1ee3p kim s\u1eaft v\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c. C\u00f9ng Nam Th\u00e0nh Vinh t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 s\u1ea3n ph\u1ea9m n\u00e0y th\u00f4ng qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

1. Th\u00e9p \u1ed1ng l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7, c\u00f4ng nghi\u1ec7p h\u00f3a \u0111ang l\u00e0 s\u1ef1 \u01b0u ti\u00ean c\u1ee7a r\u1ea5t nhi\u1ec1u qu\u1ed1c gia. \u0110\u1ec3 ng\u00e0nh n\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n th\u00ec v\u1eadt li\u1ec7u c\u0169ng ph\u1ea3i ra \u0111\u1eddi v\u00e0 l\u00e0m m\u1edbi th\u00eam r\u1ea5t nhi\u1ec1u. \u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 s\u1ea3n ph\u1ea9m quen thu\u1ed9c, th\u00e9p \u1ed1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng, l\u00e0m n\u1ed9i ngo\u1ea1i th\u1ea5t\u2026<\/p>\n

Th\u00e9p \u1ed1ng hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p h\u1ed9p tr\u00f2n, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo c\u1ea5u tr\u00fac r\u1ed7ng ru\u1ed9t, b\u00eca ngo\u00e0i th\u00e0nh m\u1ecfng, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u1edbi \u0111\u1ed9 c\u1ee9ng. Ngo\u00e0i ra, b\u00ean ngo\u00e0i th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ee7 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 nh\u01b0 s\u01a1n, m\u1ea1 k\u1ebdm hay xi\u2026 v\u1edbi m\u1ee5c \u0111\u00edch \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n khi s\u1eed d\u1ee5ng.<\/p>\n

\u0110\u01b0\u1ee3c k\u1ebft h\u1ee3p t\u1ea1o th\u00e0nh b\u1edfi h\u1ee3p kim c\u1ee7a s\u1eaft v\u00e0 cacbon v\u1edbi m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc kh\u00e1c n\u1eefa. Th\u00e9p h\u1ed9p tr\u00f2n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng nh\u01b0 gi\u00e0n gi\u00e1o ch\u1ecbu l\u1ef1c, nh\u00e0 th\u00e9p ti\u1ec1n ch\u1ebf, tr\u1ee5 vi\u1ec5n th\u00f4ng, \u0111\u00e8n chi\u1ebfu s\u00e1ng \u0111\u00f4 th\u1ecb\u2026<\/p>\n

\n

\"\u1ed0ng<\/a><\/p>\n

\u1ed0ng th\u00e9p \u0111\u00fac 10 inch DN250<\/p>\n<\/div>\n

2. B\u1ea3ng th\u00e9p \u1ed1ng ti\u00eau chu\u1ea9n<\/strong><\/span><\/h2>\n

N\u1eafm r\u00f5 b\u1ea3ng quy c\u00e1ch th\u00e9p \u1ed1ng ti\u00eau chu\u1ea9n r\u1ea5t c\u1ea7n thi\u1ebft trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng. Nhi\u1ec1u tr\u01b0\u1eddng do kh\u00f4ng n\u1eafm r\u00f5 m\u00e0 mua sai so v\u1edbi y\u00eau c\u1ea7u khi\u1ebfn c\u00f4ng tr\u00ecnh ch\u1eadm ti\u1ebfn \u0111\u1ed9, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u b\u1ed9 ph\u1eadn kh\u00e1c nhau. \u0110\u1ec3 tr\u00e1nh sai s\u00f3t, Nam Th\u00e0nh Vinh s\u1ebd cung c\u1ea5p \u0111\u1ebfn b\u1ea1n b\u1ea3ng tra ti\u00eau chu\u1ea9n th\u00e9p \u1ed1ng.<\/p>\n

2.1. Gi\u1edbi thi\u1ec7u m\u1ed9t s\u1ed1 k\u00ed hi\u1ec7u c\u00f3 trong b\u1ea3ng<\/strong><\/span><\/h3>\n

2.1.1.\u00a0 K\u00fd hi\u1ec7u DN<\/strong><\/span><\/h4>\n

\u0110\u00e2y l\u00e0 \u0111\u01a1n v\u1ecb \u0111o\u00a0\u0111\u01b0\u1eddng k\u00ednh trong danh ngh\u0129a<\/strong>\u00a0c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n ti\u1ebft di\u1ec7n thanh th\u00e9p, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng mm.<\/p>\n

V\u00ed d\u1ee5: Theo ti\u00eau chu\u1ea9n ASTM, \u1ed0ng th\u00e9p DN15 s\u1ebd c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i danh ngh\u0129a l\u00e0 21.3mm.<\/p>\n

2.1.2.\u00a0 Phi (\u00d8)<\/strong><\/span><\/h4>\n

\u0110\u00e2y l\u00e0 \u0111\u01a1n v\u1ecb \u0111o\u00a0\u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i danh ngh\u0129a<\/strong>\u00a0c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n ti\u1ebft di\u1ec7n thanh th\u00e9p, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng mm.<\/p>\n

2.2. B\u1ea3ng quy chu\u1ea9n m\u1ed9t s\u1ed1 k\u00edch th\u01b0\u1edbc c\u1ee7a th\u00e9p \u1ed1ng<\/strong><\/span><\/h3>\n

2.2.1. QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN6 \u03a610.3<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN6<\/td>\n10.3<\/td>\n1.24<\/td>\nSCH10<\/td>\n0.28<\/td>\n<\/tr>\n
DN6<\/td>\n10.3<\/td>\n2.77<\/td>\nSCH30<\/td>\n0.32<\/td>\n<\/tr>\n
DN6<\/td>\n10.3<\/td>\n3.18<\/td>\nSCH40<\/td>\n0.37<\/td>\n<\/tr>\n
DN6<\/td>\n10.3<\/td>\n3.91<\/td>\nSCH.STD<\/td>\n0.37<\/td>\n<\/tr>\n
DN6<\/td>\n10.3<\/td>\n5.54<\/td>\nSCH80<\/td>\n0.47<\/td>\n<\/tr>\n
DN6<\/td>\n10.3<\/td>\n6.35<\/td>\nSCH.XS<\/td>\n0.47<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/strong><\/p>\n

2.2.2.\u00a0<\/strong>QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN8 \u03a613.7<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN8<\/td>\n13.7<\/td>\n1.65<\/td>\nSCH10<\/td>\n0.49<\/td>\n<\/tr>\n
DN8<\/td>\n13.7<\/td>\n1.85<\/td>\nSCH30<\/td>\n0.54<\/td>\n<\/tr>\n
DN8<\/td>\n13.7<\/td>\n2.24<\/td>\nSCH40<\/td>\n0.63<\/td>\n<\/tr>\n
DN8<\/td>\n13.7<\/td>\n2.24<\/td>\nSCH.STD<\/td>\n0.63<\/td>\n<\/tr>\n
DN8<\/td>\n13.7<\/td>\n3.02<\/td>\nSCH80<\/td>\n0.80<\/td>\n<\/tr>\n
DN8<\/td>\n13.7<\/td>\n3.02<\/td>\nSCH.XS<\/td>\n0.80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

2.2.3.\u00a0<\/strong>QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN10 \u03a617.1<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN10<\/td>\n17.1<\/td>\n1.65<\/td>\nSCH10<\/td>\n0.63<\/td>\n<\/tr>\n
DN10<\/td>\n17.1<\/td>\n1.85<\/td>\nSCH30<\/td>\n0.70<\/td>\n<\/tr>\n
DN10<\/td>\n17.1<\/td>\n2.31<\/td>\nSCH40<\/td>\n0.84<\/td>\n<\/tr>\n
DN10<\/td>\n17.1<\/td>\n2.31<\/td>\nSCH.STD<\/td>\n0.84<\/td>\n<\/tr>\n
DN10<\/td>\n17.1<\/td>\n3.20<\/td>\nSCH80<\/td>\n1.00<\/td>\n<\/tr>\n
DN10<\/td>\n17.1<\/td>\n3.20<\/td>\nSCH.XS<\/td>\n1.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

2.2.4.\u00a0<\/strong>QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN15 \u03a621.3<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN15<\/td>\n21.3<\/td>\n2.11<\/td>\nSCH10<\/td>\n1.00<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n2.41<\/td>\nSCH30<\/td>\n1.12<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n2.77<\/td>\nSCH40<\/td>\n1.27<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n2.77<\/td>\nSCH.STD<\/td>\n1.27<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n3.73<\/td>\nSCH80<\/td>\n1.62<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n3.73<\/td>\nSCH.XS<\/td>\n1.62<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n4.78<\/td>\n160<\/td>\n1.95<\/td>\n<\/tr>\n
DN15<\/td>\n21.3<\/td>\n7.47<\/td>\nSCH.XXS<\/td>\n2.55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

2.2.5.\u00a0 QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN20 \u03a627<\/span><\/h4>\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN20<\/td>\n26.7<\/td>\n1.65<\/td>\nSCH5<\/td>\n1.02<\/td>\n<\/tr>\n
DN20<\/td>\n26.7<\/td>\n2.1<\/td>\nSCH10<\/td>\n1.27<\/td>\n<\/tr>\n
DN20<\/td>\n26.7<\/td>\n2.87<\/td>\nSCH40<\/td>\n1.69<\/td>\n<\/tr>\n
DN20<\/td>\n26.7<\/td>\n3,91<\/td>\nSCH80<\/td>\n2.2<\/td>\n<\/tr>\n
DN20<\/td>\n26.7<\/td>\n7.8<\/td>\nSCH.XXS<\/td>\n3.63<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h4>\n

2.2.6. QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN25 \u03a634<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN25<\/td>\n33.4<\/td>\n1.65<\/td>\nSCH5<\/td>\n1.29<\/td>\n<\/tr>\n
DN25<\/td>\n33.4<\/td>\n2.77<\/td>\nSCH10<\/td>\n2.09<\/td>\n<\/tr>\n
DN25<\/td>\n33.4<\/td>\n3.34<\/td>\nSCH40<\/td>\n2.47<\/td>\n<\/tr>\n
DN25<\/td>\n33.4<\/td>\n4.55<\/td>\nSCH80<\/td>\n3.24<\/td>\n<\/tr>\n
DN25<\/td>\n33.4<\/td>\n9.1<\/td>\nSCH.XXS<\/td>\n5.45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h4>\n

2.2.7. QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN32 \u03a642<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN32<\/td>\n42.2<\/td>\n1.65<\/td>\nSCH5<\/td>\n1.65<\/td>\n<\/tr>\n
DN32<\/td>\n42.2<\/td>\n2.77<\/td>\nSCH10<\/td>\n2.69<\/td>\n<\/tr>\n
DN32<\/td>\n42.2<\/td>\n2.97<\/td>\nSCH30<\/td>\n2.87<\/td>\n<\/tr>\n
DN32<\/td>\n42.2<\/td>\n3.56<\/td>\nSCH40<\/td>\n3.39<\/td>\n<\/tr>\n
DN32<\/td>\n42.2<\/td>\n4.8<\/td>\nSCH80<\/td>\n4.42<\/td>\n<\/tr>\n
DN32<\/td>\n42.2<\/td>\n9.7<\/td>\nSCH.XXS<\/td>\n7.77<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h4>\n

2.2.8. QUY C\u00c1CH \u1ed0NG TH\u00c9P \u0110\u00daC DN400 \u03a6406<\/strong><\/span><\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Th\u00e9p \u1ed1ng<\/strong><\/td>\n\u00d8\u00a0(mm)<\/strong><\/td>\n\u0110\u1ed9 d\u00e0y \u1ed1ng (mm)<\/strong><\/td>\nTi\u00eau chu\u1ea9n (SCH)<\/strong><\/td>\nKh\u1ed1i l\u01b0\u1ee3ng (kg\/m)<\/strong><\/td>\n<\/tr>\n<\/thead>\n
DN400<\/td>\n406,4<\/td>\n4,2<\/td>\nACH5<\/td>\n41,64<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n4,78<\/td>\nSCH10S<\/td>\n47,32<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n6,35<\/td>\nSCH10<\/td>\n62,62<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n7,93<\/td>\nSCH20<\/td>\n77,89<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n9,53<\/td>\nSCH30<\/td>\n93,23<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n12,7<\/td>\nSCH40<\/td>\n123,24<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n16,67<\/td>\nSCH60<\/td>\n160,14<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n12,7<\/td>\nSCH80S<\/td>\n123,24<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n21,4<\/td>\nSCH80<\/td>\n203,08<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n26,2<\/td>\nSCH100<\/td>\n245,53<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n30,9<\/td>\nSCH120<\/td>\n286<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n36,5<\/td>\nSCH140<\/td>\n332,79<\/td>\n<\/tr>\n
DN400<\/td>\n406,4<\/td>\n40,5<\/td>\nSCH160<\/td>\n365,27<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3. Ph\u00e2n lo\u1ea1i th\u00e9p \u1ed1ng<\/strong><\/span><\/h2>\n

Th\u00e9p \u1ed1ng \u0111\u01b0\u1ee3c chia ra l\u00e0m nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau nh\u1edd v\u00e0o c\u00e1c \u0111\u1eb7c t\u00ednh hay m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. T\u00ecm hi\u1ec3u c\u00e1c lo\u1ea1i th\u00e9p \u1ed1ng d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

3.1. Th\u00e9p \u1ed1ng inox<\/span><\/h3>\n

L\u00e0 m\u1ed9t h\u1ee3p kim c\u1ee7a th\u00e9p v\u00e0 m\u1ed9t s\u1ed1 kim lo\u1ea1i m\u00e0u kh\u00e1c t\u1ea1o th\u00e0nh. \u0110\u1eb7c t\u00ednh c\u1ee7a s\u1ea3n ph\u1ea9m n\u00e0y l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c m\u00e0i m\u00f2n, kh\u00f4ng b\u1ecb \u00f4 nhi\u1ec5m t\u1eeb, ch\u1ed1ng oxy h\u00f3a v\u00e0 d\u1ec5 u\u1ed1n, gia c\u00f4ng.<\/p>\n

Th\u00e9p \u1ed1ng inox \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c t\u00ednh th\u1ea9m m\u1ef9 v\u1edbi b\u1ec1 ngo\u00e0i s\u00e1ng b\u00f3ng, thi\u1ebft k\u1ebf tinh t\u1ebf v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c trong th\u1eddi gian d\u00e0i. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y v\u00e0 l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p.<\/p>\n

3.2. Th\u00e9p \u1ed1ng m\u1ea1 k\u1ebdm<\/strong><\/span><\/h3>\n

Th\u00e9p \u1ed1ng m\u1ea1 k\u1ebdm \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t r\u1ed7ng b\u00ean trong, th\u00e0nh m\u1ecfng v\u00e0 \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c m\u1ea1 l\u1edbp k\u1ebdm b\u00ean ngo\u00e0i. Nh\u1edd v\u00e0o l\u1edbp m\u1ea1 k\u1ebdm n\u00e0y m\u00e0 s\u1ea3n ph\u1ea9m ch\u1ecbu \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, c\u00f3 \u0111\u1ed9 b\u1ec1n cao gi\u00fap th\u1eddi gian s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n

Hi\u1ec7n nay, lo\u1ea1i th\u00e9p \u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c chia l\u00e0m 2 lo\u1ea1i l\u00e0 \u1ed1ng th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng v\u00e0 \u1ed1ng th\u00e9p m\u1ea1 k\u1ebdm \u0111i\u1ec7n ph\u00e2n. Gi\u00e1 th\u00e0nh c\u1ee7a \u1ed1ng th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng r\u1ebb h\u01a1n n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn h\u01a1n.<\/p>\n

Lo\u1ea1i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m x\u00e0 g\u1ed3, khung m\u00e1y m\u00f3c thi\u1ebft b\u1ecb, h\u00e0ng r\u00e0o, tr\u1ee5 \u0111i\u1ec7n\u2026\u0111a d\u1ea1ng c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau.<\/p>\n

\n

\"Th\u00e9p<\/a><\/p>\n

Th\u00e9p \u1ed1ng m\u1ea1 k\u1ebdm v\u1edbi b\u1ec1 ngo\u00e0i s\u00e1ng b\u00f3ng<\/p>\n<\/div>\n

3.3. Th\u00e9p \u1ed1ng \u0111\u00fac<\/strong><\/span><\/h3>\n

L\u00e0 m\u1ed9t trong s\u1ed1 nh\u1eefng s\u1ea3n ph\u1ea9m c\u1ee7a th\u00e9p \u1ed1ng, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p \u1ed1ng \u0111\u00fac v\u1edbi m\u1ee5c \u0111\u00edch ph\u00e2n bi\u1ec7t v\u1edbi th\u00e9p \u1ed1ng \u0111en. \u0110\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1eefng thanh th\u00e9p tr\u00f2n v\u00e0 \u0111\u1eb7c, sau \u0111\u00f3 \u0111\u01b0\u1ee3c n\u00f3ng ch\u1ea3y v\u00e0 k\u00e9o ph\u00f4i ra kh\u1ecfi \u1ed1ng. Ph\u00f4i s\u1ebd \u0111\u01b0\u1ee3c th\u00f4ng \u1ed1ng l\u00e0m r\u1ed7ng ru\u1ed9t, n\u1eafn th\u1eb3ng v\u00e0 k\u00e9o d\u00e0i t\u1ea1o n\u00ean s\u1ea3n ph\u1ea9m ho\u00e0n ch\u1ec9nh.<\/p>\n

Th\u00e9p \u1ed1ng \u0111\u00fac l\u00e0 nguy\u00ean v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn s\u1eed d\u1ee5ng v\u1edbi m\u1ee5c \u0111\u00edch t\u1ea1o n\u00ean \u0111\u01b0\u1eddng \u1ed1ng tho\u00e1t n\u01b0\u1edbc, s\u1eed d\u1ee5ng trong ng\u00e0nh thi\u1ebft k\u1ebf c\u00e1c lo\u1ea1i xe, hay s\u1eed d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p x\u00e2y d\u1ef1ng v\u00e0 thi\u1ebft k\u1ebf n\u1ed9i th\u1ea5t.<\/p>\n

3.4. Th\u00e9p \u1ed1ng tr\u00f2n<\/strong><\/span><\/h3>\n

Th\u00e9p \u1ed1ng tr\u00f2n<\/strong>\u00a0\u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p gi\u1eefa th\u00e9p v\u00e0 cacbon, s\u1ea3n xu\u1ea5t v\u1edbi nhi\u1ec1u k\u00edch c\u1ee1 v\u00e0 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng. S\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u trong c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng, to\u00e0 nh\u00e0, ch\u1ebf t\u1ea1o k\u1ebft c\u1ea5u, s\u1ea3n xu\u1ea5t ch\u1ebf t\u1ea1o m\u00e1y m\u00f3c v\u00e0 c\u00f2n nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c.<\/p>\n

Th\u00e9p \u1ed1ng l\u00e0 s\u1ea3n ph\u1ea9m c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau, n\u00ean \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p \u1ed1ng c\u0169ng v\u00f4 c\u00f9ng phong ph\u00fa.<\/p>\n