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 thiab qhov ntev ntawm Txoj Kev Railroad yog dab tsi?
Qhov hnyav ntawm txoj kev tsheb ciav hlau yog ntsuas tshaj qhov ntev. Nws yog piav raws li phaus ib yard los yog kilograms ib 'meter'. Cov phaus -ib -yard daim duab yog yuav luag raws nraim ob npaug rau kilograms-ib -meter daim duab. (ie. 115RE rail yog 115 lb/yd uas yog 57kg/m). Qhov hnyav ntawm txoj kev khiav yog ib qho tseem ceeb uas qhia txog lub zog ntawm txoj kab ntawd. Feem ntau hais lus, lub tsheb ciav hlau hnyav dua, lub zog ntau lub tsheb ciav hlau muaj.
Txoj kev tsheb ciav hlau hnyav npaum li cas?
| Lub teb chaws / cheeb tsam | Railroad Rail hnyav |
|---|---|
| Teb chaws USA | AREA Rail 115 (57kg / m), 119 (60kg / m), 132 (65kg / m), 133 (66kg / m) 136 (68kg / m), 147 (73kg / m) |
| Lub teb chaws Yelemees | 54kg / m, 60kg / m |
| Fabkis | 54kg / m, 60kg / m |
| Russia | 50kg / m, 65kg / m, 75kg / m |
| Australia | 31kg / m, 41kg / m, 47kg / m, 50kg / m, 60kg / m, 66kg / m, 68kg / m, 73kg / m, 86kg / m, 89kg / m |
| Tuam Tshoj | 9kg / m, 12kg / m, 15kg / m, 18kg / m, 22kg / m, 30kg / m, 43kg / m, 50kg / m,60kg / m, 75kg/m |
| Nyiv | 30kg / m, 37 kg / m, 40 kg / m, 50 kg / m, 60 kg / m |
Ntev ntawm txoj kev tsheb ciav hlau
| Lub teb chaws / cheeb tsam | Railroad Rail Length |
|---|---|
| Teb chaws USA | 39ft (12m), 78ft (24m), 82ft (25m) |
| Lub teb chaws Yelemees | 36m, 120m |
| Fabkis | 36m, 75(76)m |
| Russia | 12.5m, 25m, |
| Tuam Tshoj | 12.5m, 25m, 50m, 100m |
| Nyiv | 25m, 50m |
Yuav ua li cas xaiv txoj cai steel rail ntev thiab qhov hnyav?
Kev xaiv txoj kev tsheb ciav hlau zoo yuav suav nrog nws qhov hnyav (kg / m) rau lub qag load, tsheb ciav hlau ceev, thiab cov tsheb thauj mus los, nrog cov tsheb hnyav hnyav rau siab -ceev / hnyav- cov kab (piv txwv li, 60kg / m +) thiab sib dua rau kev lag luam / lub teeb- siv lub luag haujlwm (xws li, 9-30kg / m). Rail ntev yog txiav txim siab los ntawm cov qauv hauv cheeb tsam (ntev ntev 25m, 50m, lossis 12m) thiab daim ntawv thov, ntsuas kev thauj mus los / kev teeb tsa tus nqi nrog kev taug qab smoothness, nrog ntev txuas txuas welded rails (CWR) muab kev ua tau zoo dua tab sis xav tau kev txhim kho ntau dua.
Xaiv Rail Nyhav (kg / m)
- Axle Load & Traffic Volume: Thawj tus tsav tsheb. Siab dua axle loads (hnyav freight, mining) thiab ntau tonnage yuav tsum hnyav rails (xws li, 75kg / m) rau stability thiab tiv thaiv crushing / qaug zog.
- Kev khiav hauj lwm ceev: siab -cov neeg caij tsheb ceev yuav tsum muaj zog, du rails (piv txwv li, 60kg / m+) rau kev ruaj ntseg thiab kev nplij siab, tiv thaiv kev co thiab cuam tshuam.
- Daim ntawv thov: Mainlines siv hnyav rails; subways, industrial sidings, los yog lub teeb railways siv lighter rails (piv txwv li, 9-30kg / m).
- Hnav Resistance: me me - vojvoog nkhaus lossis mob hnyav yuav xav tau cua sov- kho lossis hlau alloy (xws li U75V) kom hnav zoo dua thiab qaug zog lub neej.
Xaiv Rail Length
- Standard Lengths: Feem ntau ntev muaj xws li 25m (USA, Russia, Tuam Tshoj), 50m (Tuam Tshoj, Nyiv), 39ft (USA), 36m (Tebchaws Europe).
- Continuous Welded Rail (CWR): Ntev ntev (los yog welded seem) muab kev caij tsheb zoo dua, txo cov pob qij txha, thiab kev kho qis dua rau siab -ceev / hnyav- cov kab tsheb tab sis xav tau kev txhim kho thiab kev tswj xyuas qhov kub.
- Kev teeb tsa & Kev thauj mus los: luv luv yog yooj yim rau kev thauj thiab nruab tab sis tsim cov pob qij txha ntxiv, ua rau hnav thiab kev co.
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.