Dab tsi hlau yog siv los ua tsheb ciav hlau?
Jan 22, 2026
Txoj kev tsheb ciav hlauyog ib qho tseem ceeb ntawm txoj kev tsheb ciav hlau, thiab nws txoj haujlwm yog coj lub tsheb ciav hlau lub log mus rau pem hauv ntej los ntawm kev tiv thaiv lub zog loj ntawm lub log. Steel rail yuav 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 hlau yog siv los ua tsheb ciav hlau?
Tsheb ciav hlau rails yog tsim los ntawmtshwj xeeb steels, xaiv los tiv thaiv kev cuam tshuam ntawm lub log, kev ntxhov siab siab, thiab hnav khaub ncaws saum npoo ntev - kev pabcuam sijhawm. Tsis zoo li cov khoom siv hlau dav dav, cov hlau rail hlau yog alloyed thiab thermomechanically ua kom zoo dua toughness, hardness, thiab qaug zog lub neej. Tej yam hlau muaj xws li:
- High-Manganese Steels (piv txwv li, U71Mn):Cov hlau no muab kev tiv thaiv zoo heev rau hnav thiab dov kev qaug zog, ua rau lawv tsim nyog rau cov kab thauj khoom hnyav thiab kev lag luam crane. Cov ntsiab lus manganese txhim kho toughness thaum txhim kho hardenability nyob rau hauv thermal kho.
| 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 |
- Siab -Lub zog Alloy Steels (piv txwv li, U75V, R350HT):Kev sib xyaw cov ntsiab lus xws li vanadium thiab chromium, cov hlau no muaj lub zog tensile zoo dua thiab ntev - lub sij hawm qaug zog, uas yog qhov tseem ceeb rau siab - ceev mainlines thiab hnyav loaded lem.
| Qib Steel | C(%) | Si | Mn | Cr | V | P | S | Tensile zog (Rm / MPa) |
| 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 |
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) |
| R350 HT | TS EN 13674-1 (Tebchaws Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 |
- Nruab nrab-Carbon Steels (piv txwv li, 50Mn):Muab qhov sib npaug ntawm hardness thiab ductility, 50Mn steel yog dav siv nyob rau hauv kev lag luam lem thiab mining kab qhov twg muaj feem cuam tshuam thiab hnav tsis kam yuav tsum tau.
| Element | C (Carbon) | Manganese (Mn) | Si (Silicon) | P (phosphorus) | S (Sulfur) | Cr (Chromium) * | N (Nickel) * | Cu (kwv yees) * |
| Cov ntsiab lus (%) | 0.47 – 0.55 | 0.70 – 1.00 | 0.17 – 0.37 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.25 | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua los yog sib npaug li 0.30 |
- Cov Qauv Carbon Steel (piv txwv li, Q235B):Siv rau kev sib zog- lub luag haujlwm lossis kev khiav haujlwm ib ntus, cov hlau no muab lub zog txaus rau kev siv qis- kev khiav tsheb ntawm tus nqi qis, txawm hais tias nws tau txo qis hnav thiab qaug zog piv nrog cov hlau alloyed.
| Q235B | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HB | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | |||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
- Thaum tshav kub kub-Tshuaj European thiab Asian Rails (piv txwv li, R260):Cov kev tsheb ciav hlau no tau txais kev tswj xyuas dov thiab kev kho cua sov kom txhim kho qhov tawv tawv thiab sab hauv toughness, haum rau mainlines nrog siab -ceev thiab hnyav- thauj khoom.
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) | Ntsiab nta & Daim ntawv thov |
| R260 | TS EN 13674-1 (Tebchaws Europe) | C: 0.67–0.80, Mn: 0.90–1.20, Si: Tsawg dua lossis sib npaug rau 0.50 | Base-qib tsheb ciav hlau; txias- dov; dav siv nyob rau nruab nrab - cov kab tsheb. Zoo weldability thiab nqi efficiency. |
Lub luag haujlwm ntawm steel rail rail yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm txoj hlua hlau txuas txuas ntxiv tshaj qhov tsuas yog muab qhov chaw rau lub log kom yob rau. Lawv lub luag haujlwm tuaj yeem faib raws li hauv qab no:
- Load Transmission:Rails hloov ntsug thiab sab loads los ntawm dov Tshuag lossis cov tsheb muaj tsheb mus rau cov neeg pw tsaug zog thiab lub hauv paus khiav. Qhov no tiv thaiv kev deformation hauv cheeb tsam thiab ua kom muaj kev ruaj ntseg ntawm cov kab khiav hauv qab hnyav hnyav lossis lub zog muaj zog.
- Kev taw qhia log:Rails muab cov lus qhia meej rau sab nraud thiab ntev rau lub log, tswj lub tsheb sib dhos ntawm cov nkhaus, gradients, thiab cov ntu ncaj. Lub tsheb ciav hlau profile xyuas kom meej tias cov flanges ntawm lub log nyob twj ywm kom zoo, txo kev pheej hmoo ntawm derailment.
- Impact and Wear Resistance:Rails nqus rov qab kev cuam tshuam ntawm lub log thiab tiv thaiv qhov hnav thiab dov kev sib cuag qaug zog. Cov khoom siv xaiv, alloying ntsiab lus, thiab kev kho cua sov pab tswj kev tsheb ciav hlau geometry thiab kev ncaj ncees saum npoo nyob rau hauv ntau lab lub voj voog.
- Kev faib hluav taws xob:Rails pab dissipate lub zog tsim los ntawm kev txav tsheb, suav nrog kev vibrations thiab shocks, sib npaug ntawm cov neeg pw tsaug zog thiab ballast, txo cov kev ntxhov siab uas tuaj yeem ua rau cov khoom puas.
- Kev them nyiaj yug rau Track Components:Rails thauj tog rau nkoj fastening systems, pads, thiab clips, muab lub hauv paus ruaj khov rau lwm cov ntsiab lus thaum tswj kev ntsuas qhov tseeb thiab kev sib tw. Qhov no yog ib qho tseem ceeb rau ob qho tib si mainline thiab industrial lem uas precision cuam tshuam rau kev nyab xeeb thiab kev ua hauj lwm efficiency.
- Durability nyob rau hauv Environmental Conditions:Rails yuav tsum tswj cov txheej txheem thiab txhua yam kev ua tau zoo nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias, noo noo, thiab corrosive tej yam kev mob. Kev xaiv cov hlau kom raug thiab cov txheej txheem tsim khoom ua kom lub neej ntev thiab kev saib xyuas tsawg.
Raws li tus kws tshaj lij rail fastener tsum,GNEE RAILtuaj yeem muab cov qauv hlau sib txawv xws li GB, Asmeskas, BS, UIC, DIN, JIS, Australian thiab South Africa uas siv hauv kev tsheb ciav hlau, cranes thiab thee mining.
| Txuj | Sepc. | Khoom Qib Qib |
| UIC860 | UAS 54 | 700,900A,900B |
| UAS 60 | ||
| EN13674.1 | 5.00E+02 | R200, R350HT, R260Mn, R35LHT, R320Cr, R370CrHT |
| 5.40E+02 | ||
| 6.00E+02 | ||
| 6.00E+03 | ||
| IB 11-1985 | BS80A | 700,900A,900B |
| BS 90 A | ||
| BS100A | ||
| AREMA | 115 RA | SS, HH, LA, IH |
| 136 ROJ | ||
| UAS 60 | ua 71mn | |
| TIAB SA 85 | ua 71mn | |
| GB 2585-2007 | 50kg / m | ua 71mn |
| 60kg / m | U75V | |
| 75kg / m | ||
| TB/T2344-2012 | 50kg / m | U71Mn, U75V, U77MnCr |
| 60kg / m | ua 78crv | |
| 75kg / m | ||
| GB 11264-1989 | 8 kg/m | Q235 |
| 12kg / m | Q235 | |
| 15kg / m | 55Q, Q235 | |
| 18kg / m | 55Q, Q235 | |
| 22kg / m | 55Q, Q235 | |
| 24kg / m | 55Q, Q235 | |
| 30kg / m | 55Q, Q235 | |
| 38kg / m | 50mn, ua 71 | |
| 43kg / m | 50mn, ua 71 | |
| GB Crane Rail | qw 70 | ua 71mn |
| qw 80 | ua 71mn | |
| QU 100 | ua 71mn | |
| qw 120 | ua 71mn |
