Hlau railsyog cov load bearing thiab cov ntsiab lus hauv kev tsheb ciav hlau lossis tramway khiav. Cov khoom tawg ntawm tus kheej yog bolted los yog welded ua ke ua ib txoj kab txuas ntxiv uas txhawb nqa railcar log. Cov ntu ntu ntawm txoj kab tsheb ciav hlau, lossis qhov profile, tau hloov pauv raws sijhawm thiab los ntawm thaj chaw thov.
Qhov hnyav ntawm txoj kev tsheb ciav hlau ib 'meter' yog dab tsi?
Kev tsheb ciav hlau qhov hnyav ib 'meter' txawv ntawm daim ntawv thov thiab cheeb tsam, los ntawm lub teeb tsheb ciav hlau nyob ib ncig ntawm 9-30 kg / m (xws li Suav GB qauv) rau kev siv sib dua, rau cov khoom siv hnyav / cov neeg caij tsheb siv 40-60 kg / m (xws li European DIN / UIC) lossis hnyav dua 60-75 kg / m rau high-ceev cov qauv hauv North American, high-speed kab. (eg, 115 lb/yd ≈ 57 kg/m). Heavier rails muab lub zog ntau dua thiab txhawb nqa ntau dua qag thiab nrawm, nrog rau qhov hnyav uas xav txog qhov yuav tsum tau muaj peev xwm.
Kev Nyuaj Siab Ntau Yam & Piv txwv:
- Lub teeb Rail / Kev Lag Luam: 9 kg / m (piv txwv li, GB9) txog 30 kg / m (eg, GB30).
- General Heavy Rail (Tebchaws Europe / Suav): 40 kg / m (ISCR60) txog 60 kg / m (50E1 / 60E2).
- Siab -Speed/Mainline (Havy): 60 kg/m (piv txwv li, 60E1) mus txog 75 kg/m (piv txwv li, Suav GB75).
- North American (ASCE/AREA): Ntau yam ntawm 75 lb/yd (37.2 kg/m) txog 136 lb/yd (67.5 kg/m) lossis ntau dua.
GB Standard Steel Rail
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Lub Teeb Rail | 8 KG / M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG / M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG / M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG / M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG / M | 80 | 40 | 80 | 10 | 18.06 | |
| 22 KG / M | 93.66 | 50.8 | 93.66 | 10.72 | 22.3 | |
| 24 KG / M | 107 | 51 | 90 | 10.9 | 24.46 | |
| 30 KG / M | 107.95 | 60.33 | 107.95 | 12.3 | 30.1 | |
| Heavy Rail | 38 KG / M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG / M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG / M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG / M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG / M | 176 | 73 | 150 | 16.5 | 60.64 | |
| Crane Rail | qw 70 | 120 | 70 | 120 | 28 | 52.8 |
| qw 80 | 130 | 80 | 130 | 32 | 63.69 | |
| QU 100 | 150 | 100 | 150 | 38 | 88.96 | |
| qw 120 | 170 | 120 | 170 | 44 | 118.1 | |
American Standard Steel Rail
| ASTM txuj, AREMA txuj | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Ko taw | Thickness | |||
| UAS 25 | 38.1 | 69.85 | 69.85 | 7.54 | 12.4 | 6-12 |
| UAS 30 | 42.86 | 79.38 | 79.38 | 8.33 | 14.88 | |
| UAS 40 | 47.62 | 88.9 | 88.9 | 9.92 | 19.84 | |
| UAS 60 | 60.32 | 107.95 | 107.95 | 12.3 | 29.76 | |
| TIAB SA 75 | 62.71 | 122.24 | 122.24 | 13.49 | 37.2 | 12-25 |
| TIAB SA 85 | 65.09 | 131.76 | 131.76 | 14.29 | 42.17 | |
| TIAB SA 90 | 69.09 | 130.18 | 142.88 | 14.29 | 44.65 | |
| TIAB SA 115 | 69.06 | 139.7 | 168.28 | 15.88 | 56.9 | |
| TIAB SA 136 | 74.61 | 152.4 | 185.74 | 17.46 | 67.41 | |
| TIAB SA 175 | 109.86 | 152.4 | 152.4 | 38.1 | 86.8 | |
UIC 860 Standard Steel Rail
| Qauv: UIC860 | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Hauv qab | Thickness | |||
| UAS 50 | 70 | 152 | 125 | 15 | 50.46 | 12-25 |
| UAS 54 | 70 | 159 | 140 | 16 | 54.43 | |
| UAS 60 | 74.3 | 172 | 150 | 16.5 | 60.21 | |
Factors cuam tshuam qhov hnyav:
- Tsheb ciav hlau ceev & qag Load: ceev, hnyav tsheb ciav hlau yuav tsum muaj zog, hnyav rails tiv thaiv dabtsi yog khoov thiab xyuas kom meej muaj kev ruaj ntseg.
- Daim Ntawv Thov: Mainlines rau cov khoom thauj hnyav xav tau ntau cov tsheb ciav hlau hnyav dua li cov ceg kab lossis lub teeb tsheb ciav hlau.
- Cov qauv: Cov cheeb tsam sib txawv (Tebchaws Europe, Asmeskas, Tuam Tshoj, Is Nrias teb) muaj cov qauv sib txawv (UIC, AREMA, JIS, ISCR) rau kev tsheb nqaj hlau thiab qhov hnyav.
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm cov qib sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE yog heev recommened nyob rau hauv Tuam Tshoj thiab txawv teb chaws.Wtih txiav ntug khoom, GNEE ua tau zoo steel rails uas tau raws li cov kev cai ntawm feem ntau lub teb chaws. Standard rail, lub taub hau hardened rail, hnyav rail, lub teeb rail, crane rail thiab lwm yam yog tag nrho cov muaj nyob ntawm no, raws li ib tug ntawm cov Tuam Tshoj lub ntsiab rail tsum, GNEE RAIL tau ua hauj lwm rau muab kev lag luam ntsuab railway khoom thoob plaws lub ntiaj teb no.