Cov khoom lag luam
Muaj ntau hom kev tsheb ciav hlau txawv, nyob ntawm cov khoom, lub hom phiaj thiab cov duab. Ca-taws kev tsheb ciav hlau feem ntau yog siv rau ntawm cov ciav hlau zoo ib txwm muaj rau cov kev sib tw tsheb ciav hlau siab thiab cov kev sib tw tshwj xeeb tawg ntawm cov tsheb ciav hlau. U-puab cov tsheb ciav hlau feem ntau siv rau kev sib tw railways hnyav. Lawv cov qauv tshwj xeeb thiab cov ntaub ntawv tuaj yeem tiv thaiv ntau dua. Raws li cov kev xav tau ntawm cov kev tsheb ciav hlau, xaiv txoj cai hom kev tsheb ciav hlau loj tuaj yeem txhim kho qhov ruaj khov thiab kev nyab xeeb ntawm txoj kev. Ntau hom kev tsheb ciav hlau loj rau cov chaw sib txawv thiab kev ua haujlwm ua kom ntseeg tau cov chaw ntawm kev ciav hlau zoo tshaj plaws.
Cov piv txwv ib txwm muaj ntawm cov ciav hlau aub li hauv qab no:
| Teem nqi | 4.6 | 5.6 | 8.8 | 10.9 |
|---|---|---|---|---|
| Khoom | Q235 | 35# | 45# | Daimr |
| Txawj kho ub no | Tensile lub zog: ntau dua lossis sib npaug nrog 400MPA | Tensile lub zog: ntau dua los yog sib npaug rau 500mpa | Tensile lub zog: ntau dua los yog sib npaug rau 800mpa | Tensile lub zog: ntau dua los yog sib npaug rau 1000mpa |
| Paib muaj zog: ntau dua los yog sib npaug rau 240mpa | Paib lub zog: ntau dua los yog sib npaug rau 300mpa | Paib lub zog: ntau dua los yog sib npaug rau 640MPA | Paib lub zog: ntau dua los yog sib npaug rau 900mpa | |
| Elongation: ntau dua los yog sib npaug rau 22% | Elongation: ntau dua los yog sib npaug rau 20% | Elongation: ntau dua los yog sib npaug rau 12% | Elongation: ntau dua los yog sib npaug rau 9% | |
| Dabtsi yog khoov khoov: 90 degree | Dabtsi yog khoov khoov: 90 degree | Dabtsi yog khoov khoov: 90 degree | Dabtsi yog khoov khoov: 90 degree | |
| tsis muaj kev tawg | tsis muaj kev tawg | tsis muaj kev tawg | tsis muaj kev tawg | |
| Nplaim | dawb (oxed), oxide dub, zinc, HDG, ciab, bitumen, dacromet, sherardizing | |||
Vim li cas thiaj xaiv peb
Nruam Nraj Tshiab
Peb txuas ntxiv mus tshawb fawb thiab kev nthuav dav ntawm kev tsim kho tshiab los ntawm kev txhim kho kev txhim kho kom ruaj khov, txo cov nqi kho mob thiab hloov kho rau ib puag ncig ib puag ncig.
Hloov pauv txoj hauv kev
Rau kev yooj yim ntawm cov neeg muas zaub, peb muab ntau txoj kev them nyiaj, suav nrog cov tsiaj ntawv ntawm credit, thiab lwm yam, los xyuas kom yooj yim thiab kev sib koom tes.
Kev tshaj lij tom qab muag txhawb
Peb pab pawg muag khoom tom qab muag tau muab koj nrog tag nrho cov kev txhawb nqa kev txhawb nqa thiab kev sab laj. Txawm koj ntsib teeb meem thaum siv lossis muaj lus nug txog kev saib xyuas thiab kev saib xyuas cov khoom, peb ib txwm teb koj.
Cim npe nrov: Kev Railroad khiav Spikes Nrog Tawg Dawb Tiav, Tuam Tshoj Aud Railroad khiav Spikes Nrog Cov Chaw Tsim Khoom, Chaw Tsim Tshuaj Cov Chaw Tsim Khoom, Chaw Tsim Tshuaj
