Dab tsi yog Cov Lus Qhia Tshwj Xeeb Thiab Qhov Loj Ntawm 115RE (TR57) Rail?
Jun 12, 2026
Cov115 RE rail(feem ntau hu ua TR57 rail lossis 115 lb / yd rail) sawv ua ib qho kev siv dav tshaj plaws hnyav -lub luag haujlwm tee-section rail profiles nyob rau hauv niaj hnub railway networks. Raws li cov txheej txheem ntawm American Railway Engineering thiab Maintenance- ntawm- Txoj Kev Koom Tes (AREMA), 115RE rail yog tsim los sib npaug qhov hnyav, khoov lub zog, thiab tag nrho cov nqi tsim khoom. Nws yog ib qho tseem ceeb nyob rau hauv hnyav- thauj cov kab tsheb thauj mus los, siab- txoj hauv kev loj loj, cov neeg caij tsheb thauj mus los, thiab cov chaw tsheb ciav hlau muaj thoob plaws North America, South America, thiab thoob ntiaj teb kev sib txuas.
Phau ntawv qhia kev qhia no qhia meej txog qhov tseeb geometry, metallurgy, mechanical parameters, and system accessories related with 115RE rail profile to provide a trusted resources for railway engineers, contractors, and procurement departments.
1. Kev txheeb cais thiab kev faib khoom hlau
Qhov nomenclature "115RE" txhais tau hais tias ib lub tsheb ciav hlau nrog ib qhov hnyav ntawm 115 phaus ib yard (tshwj xeeb yog 114.38 lbs / yd, lossis 56.89 kg / m). Lub npe "RE" sawv cev rau tus qauv profile tsim los ntawm AREMA (lossis qub AREA) pawg thawj coj, thaum nws qhov sib npaug thoob ntiaj teb "TR57" qhia txog nws cov European thiab thoob ntiaj teb kev faib tawm hauv 57 kg / m thauj tsev neeg.
Txhawm rau tiv thaiv kev qaug zog thiab ua kom haum rau lub log tsis muaj zog, lub cev ntoo khaub lig- ntu ntu ntawm 115RE kev tsheb nqaj hlau tau muab faib ua ke ntawm peb lub ntsiab lus tseem ceeb:
- Rail Head (34.96%):Tsim los ntawm 2,536 mm² ntawm cov hlau, tsim los txhim kho lub log - kev tsheb ciav hlau tiv tauj cheeb tsam thiab tiv taus hnav los ntawm lub nra hnyav.
- Rail Web (26.63%):Tsim los ntawm 1,931 mm² ntawm cov hlau, muab ntsug ntsug, kev ruaj ntseg sab nraud, thiab tshwj xeeb tiv thaiv torsional deformation thiab cuam tshuam.
- Rail Base (38.41%):Tsim los ntawm 2,786 mm² ntawm cov hlau, muab cov hneev taw dav dav kom faib cov kev ntxhov siab sib npaug ntawm txoj kev tsheb ciav hlau (cov pw tsaug zog) thiab tiv thaiv kev sib tsoo.
| 115 RE Rail | / hli2 | /% |
|---|---|---|
| Lub taub hau | 2536 | 34.96 |
| Web | 1931 | 26.63 |
| Puag | 2786 | 38.41 |
2. Txheem Dimensions thiab Geometrical Section Properties
Tag nrho cov yam ntxwv ntawm 115RE rail ua raws li cov qauv tsim los ntawm AREMA thiab ASTM A1 cov qauv. Hauv qab no yog cov ncauj lus kom ntxaws txog nws qhov kev ntsuas qhov ntev thiab cov qauv ntu cov khoom:
| Parameter / Feature | Metric nqi | Imperial sib npaug |
|---|---|---|
| Tag Nrho Qhov Siab | 168.28 hli | 6-5/8 nti |
| Lub hauv paus dav | 139.70mm 3 | 5-1/2 nti |
| Lub taub hau dav (Sab saum toj) | 69.06mm ib | 2-11/16 po |
| Web Thickness | 15.88mm 3 | 5/8 nti |
| Tag Nrho Cheeb Tsam | 72,58m wb | 11.22 m² os |
| Nominal Unit Nyhav | 56.9 kg / m | 114.38 lbs/yd |
| Moment of Inertia (Neutral Axis) | 27.26 x 106mm⁴ | 65.5 hli |
| Ntu Modulus (Lub taub hau) | 2.95 x 10⁵ mm³ | 18.0 Nws |
| Tshooj Modulus (Base) | 3.59 x 10⁵ mm³ | 21.9 ib |
| Qhov siab ntawm Neutral Axis (los ntawm Base) | 75.95mm ib | 2, 99 tzk |
3. Metallurgical Composition thiab Mechanical Specifications
Kev ua tau zoo ntawm 115RE rail nyob rau hauv qhov chaw ua haujlwm hnyav nyob ncaj qha rau nws cov tshuaj muaj pes tsawg leeg thiab cov khoom siv hluav taws xob- cov txheej txheem kho. High- carbon steels lossis qis- alloy steels yog siv los sib npaug hardness thiab ductility.
3.1 Chemical Composition (AREMA Standards)
Cov ciam teb tshuaj rau tus qauv thiab siab -lub zog 115RE rail steel qib raws li AREMA cov txheej txheem suav nrog cov hauv qab no:
| Qib Steel Strength | Cov pa roj carbon (C)% | Manganese (Mn)% | Silicon (Si)% | Phosphorus (P) max | Sulfur (S) max |
|---|---|---|---|---|---|
| Cov pa roj carbon steel (Standard Strength - SS) | 0.74 – 0.86 | 0.75 – 1.25 | 0.10 – 0.60 | 0.020% | 0.020% |
| Tsawg Alloy Steel (Standard Strength - SS) | 0.72 – 0.82 | 0.80 – 1.10 | 0.10 – 0.50 | 0.020% | 0.020% |
| Lub zog nruab nrab (IS) | 0.72 – 0.82 | 0.70 – 1.25 | 0.10 – 1.00 | 0.020% | 0.020% |
| Siab zog / Lub taub hau Hardened (HH) | 0.72 – 0.82 | 0.70 – 1.25 | 0.10 – 1.00 | 0.020% | 0.020% |
3.2 Mechanical Properties thiab Hardness
Txhawm rau tiv thaiv kev sib txhuam hnyav thiab cuam tshuam ntawm lub nra hnyav (feem ntau txog 35 tons), niaj hnub 115RE rails tau txais kev kho thermomechanical meej (lub taub hau hardening). Hauv qab no yog cov ntsiab lus tseem ceeb ntawm kev ua haujlwm zoo ntawm cov qib AREMA steel sib txawv:
| Hlau Qib Hom | Yield zog (Min) | Tensile zog (Min) | Elongation (Min) | Brinell Hardness (Min) |
|---|---|---|---|---|
| Carbon hlau (SS) | 511 MPa (74 ksi) | 983 MPa (142.5 ksi) | 10% | 310 HWB |
| Cov pa roj carbon steel (IS) | 724 MPa (105 ksi) | 1069 MPa (155 ksi) | 10% | 350 HWB |
| Cov pa roj carbon steel (HH) | 828 MPa (120 ksi) | 1179 MPa (171 ksi) | 10% | 370 HWB |
| Tsawg Alloy Steel (IS) | 552 MPa (80 ksi) | 1014 MPa (147 ksi) | 8% | 325 HWB |
| Tsawg Alloy Steel (HH) | 828 MPa (120 ksi) | 1179 MPa (171 ksi) | 10% | 370 HWB |
4. Qhov tseem ceeb Engineering Advantages ntawm 115RE Rail
Track engineers nyiam 115RE rail profile rau ntau yam kev ua haujlwm thiab kev ua haujlwm:
- Optimized Load Distribution:Kev tsim kho qhov siab - rau - piv piv tswj cov kev ntxhov siab loj heev ntawm cov tsheb thauj khoom hnyav thaum tiv thaiv lub txaj khiav los ntawm kev puas tsuaj thaum ntxov.
- Txhim khu kev hnav thiab qaug zog ua haujlwm:Kev siv lub taub hau- cov kev xaiv nyuaj (HH) microstructure txo txo cov yas deformation, corrugation, thiab rolling contact fatigue (RCF) ntawm cov nkhaus ntse thiab hloov- nraub qaum.
- Ntiaj teb no Compatibility thiab Interoperability:Tsim nyob rau hauv kev sib raug zoo nrog universal AREMA thiab ASTM cov qauv, 115RE rail muaj kev sib raug zoo nrog tus qauv OTM (Lwm yam khoom siv), ua kom yooj yim ntawm kev yuav khoom thiab kev sib koom ua haujlwm.
5. Txuj kev siv thiab khoom siv
Lub 115RE rail yog feem ntau ntsia rau hauv mainline lem, hnyav -haul freight networks, mining railroad kab, chaw nres nkoj terminals, thiab nkhaus qhov siab structural kev ntseeg siab yuav tsum tau. Txhawm rau kom muaj kev sib dhos ruaj khov, lub tsheb ciav hlau siv cov khoom siv sib xws:
- Rail Joints (Fishplates):Muaj nyob rau hauv tus qauv 24-nti (4-qhov, kwv yees . 68 lbs/pair) thiab 36-nti (6-qhov, kwv yees . 102 lbs/pair) configurations.
- Joint Bolts:Standard 1-inch x 6-inch high-strength bolts tsim los tiv thaiv longitudinal expansion rog.
- Fasteners & Spikes:Tau tshaj classic railroad cut spikes los yog niaj hnub elastic rail fasteners (e-clips) thiab khi daim hlau los tswj kev ntsuas ntsuas.
6. Cov lus nug nquag nug (FAQ)
Qhov "115" thiab "RE" txhais li cas hauv 115RE rail?
"115" qhia qhov nyhav nominal ntawm txoj kev tsheb ciav hlau, uas yog 115 phaus ib yard (kwv yees . 56.89 kg / m). "RE" sawv cev rau American Railway Engineering (AREMA) pawg thawj coj uas tsim cov kev tsheb ciav hlau tus qauv profile.
115RE piv rau 136RE rail li cas?
Lub tsheb ciav hlau 136RE hnyav dua (136 lbs / yd lossis 67.5 kg / m) thiab siab dua 115RE rail. Thaum 136RE rails nyiam rau cov chav kawm -1 hnyav- tsheb thauj khoom txoj kev thauj khoom thauj hnyav hnyav tshaj li 35 tons, 115RE rails muab cov kev daws teeb meem zoo dua rau cov qauv kev tsheb loj, cov neeg caij tsheb thauj mus los, subways, thiab kev lag luam lem.
Puas yog 115RE rail haum rau weld -dawb installation?
Tau. 115RE rails tuaj yeem txiav txim nrog ua ntej-drilled ntses bolt qhov (feem ntau 1-1/8 inch diameter qhov) los siv cov txheej txheem sib koom ua ke. Txawm li cas los xij, lawv kuj tau sib xws nrog aluminothermic (thermite) lossis flash -tooj vuam los ua cov kab nrib txuas txuas txuas (CWR) rau kev siab - ceev lossis kev tu qis.
Dab tsi yog cov qauv ntev muaj rau 115RE rail?
Raws li North American cov qauv, cov qauv ntev ntev yog 39 feet thiab 80 feet. Rau cov haujlwm thoob ntiaj teb, cov chaw tsim khoom feem ntau muab 115RE rails nyob rau hauv qhov ntev sib txawv ntawm 12 meters mus rau 25 lossis 30 meters, nyob ntawm qhov chaw logistics thiab cov khoom xa tuaj.
