Hlau railyuav tsum muab du, ruaj khov thiab nruam dov nto rau lub tsheb ciav hlau dhau lub log. Nyob rau hauv hluav taws xob railway los yog tsis siv neeg thaiv seem, railway khiav kuj yuav siv tau raws li ib tug khiav Circuit Court.
Dab tsi yog qhov zoo tib yam rails ua los ntawm?
Cov kev tsheb ciav hlau ib txwm muaj feem ntau yog ua los ntawm siab - lub zog, siab - cov pa roj carbon steel, ib qho kev tsim kho kom ruaj khov, tawv, thiab hnav tsis kam los txhawb nqa hnyav thiab cuam tshuam, nrog rau cov khoom xws li manganese, silicon, thiab qee zaum chromium ntxiv rau cov khoom txhim kho. Cov khoom siv ruaj khov no tau hloov cov hlau qub qub rau kev ua haujlwm zoo dua thiab siv tau ntev.
Cov khoom tseem ceeb
- Cov ntsiab lus Carbon siab: Ua kom lub zog tensile thiab hardness, tseem ceeb heev rau kev ua siab ntev.
- Manganese: Txhim kho lub zog thiab tiv thaiv kev puas tsuaj.
- Silicon: Pab tswj kev tsim oxide thaum tsim khoom.
- Tsis tshua muaj phosphorus & Sulfur: txwv brittleness thiab txhim kho kev cuam tshuam.
| Qib Steel | C(%) | Si | Mn | Cr | V | P | S | Tensile zog (Rm / MPa) |
| ua 71mn | 0.65~0.76 | 0.15~0.58 | 0.70~1.40 | – | – | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.030 | Ntau dua lossis sib npaug rau 880 |
| U75V | 0.71~0.80 | 0.50~0.80 | 0.75~1.05 | – | 0.04~0.12 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.030 | Ntau dua lossis sib npaug li 980 |
| ua 78crv | 0.72~0.82 | 0.50~0.80 | 0.70~1.05 | 0.30~0.50 | 0.04~0.12 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.030 | Ntau dua lossis sib npaug rau 1080 |
| U77MnCr | 0.72~0.82 | 0.10~0.50 | 0.80~1.10 | 0.25~0.40 | – | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.025 | Ntau dua lossis sib npaug li 980 |
| ua 76kr | 0.71~0.81 | 0.50~0.80 | 0.80~1.10 | 0.25~0.35 | 0.04~0.08 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.025 | Ntau dua lossis sib npaug rau 1080 |
Hom Hlau Rails
- Carbon Steel Rails: Standard rails ua nrog tswj cov pa roj carbon thiab manganese cov ntsiab lus rau kev siv dav.
- Alloy Steel Rails: Muaj cov khoom ntxiv xws li vanadium, titanium, lossis chromium rau lub zog zoo dua thiab tawv, siv rau hauv kev xav tau.
- Thaum tshav kub kub-Kho Rails: Kub-rolled rails raug tswj cua sov thiab cua txias kom kho lawv cov qauv, txhim kho lub zog thiab kev pab cuam lub neej.
Txawv Standard Track Rails
Cov txheej txheem sib txawv ntawm txoj kab tsheb sib txawv los ntawmntsuas(dav zoo li Standard 1435mm, Nqaim, Dav),profile / puab(Plat-Kab/Vignoles, Bullhead, Ob -headed, Grooved), thiabcov qauv thoob ntiaj teb(BS, UIC, DIN, JIS, thiab lwm yam), txhua yam tsim los rau cov kev ceev tshwj xeeb, kev thauj khoom, thiab ib puag ncig, los ntawm kev thauj khoom hnyav mus rau siab -cov neeg caij tsheb ceev thiab tsheb hauv nroog.
Suav 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 | |
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| 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 | |
| Kev faib tawm | SIZE (mm) | theoretical luj | |||||||||
| qhov siab | hauv qab dav | taub hau dav | lub duav tob | ||||||||
| Crane rail | qw 70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| qw 80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU 100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| qw 120 | 170 | 170 | 120 | 44 | 118.1 | ||||||
JIS E 1103/1101 Standard Steel Rail
| Txheem: JIS E 1103/1101 | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Hauv qab | Thickness | |||
| JIS 15 KG | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | 9-10 |
| JIS 22 KG | 50.8 | 93.66 | 93.66 | 10.72 | 22.3 | 9-10 |
| JIS 30 A | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | 9-10 |
| SIB 37A | 62.71 | 122.24 | 122.24 | 13.49 | 37.2 | 10-25 |
| JIS 50 N | 65 | 153 | 127 | 15 | 50.4 | 10-25 |
| SIB 73 | 100 | 135 | 140 | 32 | 73.3 | 10-12 |
| CR 100 | 120 | 150 | 155 | 39 | 100.2 | 10-12 |
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm ntau 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 cov cuab yeej, GNEE ua tau zoo steel rails 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.