A hlau railyog ib tug zoo li tus hlau khiav lub caij uas tsim cov kev sib cuag ncaj qha nto rau lub log, coj lub tsheb txav thaum hloov cov concentrated log loads rau hauv pw tsaug zog thiab khiav lub hauv paus. Nws lub hom phiaj tseem ceeb yog los tswj kev sib raug zoo, ntsuas, thiab thauj khoom - bearing txuas mus rau tag nrho txoj kev.
GNEE RAILkhoom siv steel rails nyob rau hauv tag nrho cov qauv thoob ntiaj teb, nrog rau GB lub teeb rails thiab hnyav rails los ntawm 8-60 kg / m, UIC50, UIC54, UIC60, DIN 536 crane rails A55, A65, A75, A100, A120, QU70, QU80, QU100K, JIS AS1085 31KG–89KG, BS11:1985 profiles, thiab AREMA/ASCE 25–175 lb, ua ke nrog txiav kom ntev, drilling, thiab fastening system txuam cov kev pab cuam.
Dab tsi yog cov haujlwm ntawm cov tsheb ciav hlau hauv kev tsheb ciav hlau?
Rails zoo ib yam li steel girders. Cov no yog muab los ua cov haujlwm hauv qab no hauv kev khiav.
(a) Rails muab qhov chaw txuas ntxiv thiab theem rau kev txav ntawm cov tsheb ciav hlau.
(b) Rails muab txoj hauv kev uas du thiab muaj kev sib txhuam me ntsis. Kev sib txhuam ntawm cov hlau log thiab cov hlau rail yog li ntawm ib - tsib ntawm kev sib txhuam ntawm cov log tsheb pneumatic thiab txoj kev hlau.
(c) Rails ua ib qho kev qhia rau sab nraud rau lub log.
(d) Rails dais cov kev ntxhov siab tsim los ntawm kev thauj khoom ntsug xa mus rau lawv los ntawm axles thiab log ntawm dov Tshuag nrog rau vim yog braking thiab thermal quab yuam.
(e) Rails ua haujlwm ntawm kev xa cov khoom thauj mus rau thaj tsam loj ntawm kev tsim los ntawm cov neeg pw tsaug zog thiab cov ballast.
Dab tsi yog steel rails ua los ntawm?
Txoj kev tsheb ciav hlau feem ntau yog ua los ntawm siab - zoo, kub- dov carbon steel, feem ntau nrog ntxiv manganese rau lub zog, los yog los ntawm cov hlau alloy tshwj xeeb nrog cov ntsiab lus xws li chromium, vanadium, los yog molybdenum rau txhim kho hnav tsis kam, hardness, thiab qaug zog, tshwj xeeb tshaj yog rau siab - nrawm lossis hnyav- cov kab. Cov txheej txheem siab tshaj plaws, suav nrog kev kho cua sov (quenching & tempering) thiab tswj kev ua kom txias, ntxiv dag zog rau cov khoom siv rau kev thov.
Cov Khoom Tseem Ceeb & Hom:
- High Carbon Steel:Feem ntau cov hauv paus, muaj li ntawm 0.6% mus rau 0.8% carbon thiab tseem ceeb manganese (0.7-1%), muab zoo heev hardness thiab durability rau cov qauv kab.
- Hlau alloy:Xws li cov khoom xws li manganese (Mn), chromium (Cr), los yog vanadium (V) rau kev ua tau zoo tshaj plaws hauv cov xwm txheej hnyav, muab cov tawv tawv zoo dua thiab hnav tsis kam.
- Thaum tshav kub kub-Thoob Hlau:Rails (xws li cov pa roj carbon lossis hlau) uas dhau los tswj cov cua sov thiab txias ceev kom tawv taub hau, zoo tagnrho rau kev nkhaus, hloov, thiab siab - kev tsheb ciav hlau ceev.
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) |
| 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 |
| R350 HT | TS EN 13674-1 (Tebchaws Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 |
| Qib 260 | AREMA (North America) | C: ~0.77, Mn: ~1.0–1.2, Si: ~0.2 |
| Qib 350 | AREMA + Mill Specs (USA/Canada) | C: 0.78–0.83, Mn: 0.90–1.20, Cr: 0.2–0.6, + V/Nb (microalloyed) |
| BH Rail (Baitic) | JIS E 1101 (Nyiv), tau txais kev pom zoo hauv EU / Is Nrias teb | C: 0.65–0.80, Mn: 1.0–1.4, Cr/Mo/Ni (yeem, zeb- tshwj xeeb) |
| ua 71mn | GB / T 2585 (Tuam Tshoj) | C: 0.65–0.77, Mn: 1.10–1.40, Si: 0.15–0.35 |
| U75V | GB / T 2585 (Tuam Tshoj) | C: 0.67–0.77, Mn: 0.70–1.00, V: 0.04–0.12 |
Dab tsi yog cov qauv sib txawv rau steel rail?
Cov qauv kev tsheb nqaj hlau sib txawv thoob ntiaj teb, nrog rau cov loj xws li AREMA (Tebchaws Asmeskas, los ntawm qhov hnyav hauv lbs / yard zoo li 136RE), UIC / EN (Tebchaws Europe, los ntawm kg / m zoo li UIC60, EN 13674 series), JIS (Nyiv, zoo li 50N, 60N), BS (British, xws li BSChina), txhua qhov siab, thiab qhov siab profile), thiab kev ua tau zoo rau txoj kev tsheb ciav hlau sib txawv xws li hnyav -haul lossis siab - ceev.
| 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 |
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.