A hlau railua haujlwm raws li ob qho tib si thauj khoom -cov qauv kabmob thiab cov txheej txheem kev taw qhia, kev sib xyaw ua ke ntawm lub zog nrog geometric tswj los tsim cov tub ntxhais ntawm ib qho kev tsheb ciav hlau -raws li qhov system. Nws qhov kev ua tau zoo nyob ntawm kev sib raug zoo nrog lub tshuab fastening thiab lub hauv paus nruj.GNEE RAILmuab tsis tau tsuas yog rails ntawm tag nrho cov qauv tab sis kuj tag nrho cov kev khiav system kev koom ua ke cov kev pab cuam, nrog rau kev xaiv ntawm tshaj clips, pads, baseplates, thiab anchoring Cheebtsam, xyuas kom meej tias cov tsheb ciav hlau ua tau zoo nyob rau hauv tag nrho cov structural system.
Lub hom phiaj ntawm txoj kev tsheb ciav hlau yog dab tsi?
Lub hom phiaj tseem ceeb ntawm txoj kev tsheb ciav hlau yog muab qhov nruam, du, thiab qis - kev sib txhuam nto rau lub tsheb ciav hlau lub log, tso cai rau kev txav tau zoo thaum coj lub tsheb ciav hlau thiab muaj kev nyab xeeb faib cov khoom loj loj thiab sab nraud rau cov neeg pw tsaug zog thiab ballast. Lawv tuav ruaj khov geometry, ua kom muaj kev nyab xeeb, siab - nrawm, thiab hnyav - tsheb thauj mus los.
Lub luag haujlwm tseem ceeb ntawm Railway Rails:
Load Distribution thiab Support:Rails dais qhov hnyav ntawm locomotives thiab tsheb, hloov cov loads sib npaug mus rau sleepers, ballast, thiab subgrade.
Kev taw qhia thiab kev ruaj ntseg:Lawv muab txoj hauv kev meej, nruj, thiab sib npaug uas coj lub log, tiv thaiv kev derailments thiab ua kom muaj kev ruaj ntseg.
Low Friction Nto:Cov hlau- ntawm- hlau tiv tauj kom txo qis kev sib txhuam, txo lub zog xav tau rau kev txav mus los.
Kev Nyab Xeeb thiab Tswj:Rails pab tswj kev tawg rog thiab muab kev taw qhia thaum lub sijhawm acceleration, deceleration, thiab tig.
Ntev npaum li cas cov hlua yuav tsum tau hloov?
Rails yuav tsum tau hloov thaum lawv mus txog qhov kawg ntawm lawv lub neej kev pabcuam, uas yog txiav txim siab los ntawm kev hnav, qaug zog, thiab kev puas tsuaj tsub zuj zuj, es tsis yog lub sijhawm teem sijhawm. Kev hloov zaus sib txawv nyob ntawm seb hom kev tsheb ciav hlau, qib steel, kev siv tsheb thauj mus los, tsheb thauj khoom, ib puag ncig, thiab kev saib xyuas.
- Rau mainline railway rails, lub teeb mus rau nruab nrab ntawm cov pa U71Mn lossis R260 rails tuaj yeem tso cai rau 25-30 xyoo ntawm kev pabcuam, thaum cov khoom thauj hnyav hnyav lossis siab - cov kab nrawm siv lub taub hau- cov tsheb ciav hlau zoo li R350HT yuav kav ntev txog 35-40 xyoo. Hauv kev xyaum, ntu ntawm txoj kev taug kev tuaj yeem hloov pauv hauv cov theem es tsis yog tag nrho ib zaug, tsom mus rau qhov chaw hnav lossis puas tsuaj ntau tshaj plaws, xws li nkhaus, hlws ris, thiab siab - tsam nres. Kev hloov tsheb ciav hlau feem ntau tshwm sim thaum lub taub hau hnav dhau qhov kev txwv tsim (piv txwv li, 7-12 hli), dov kev sib cuag qaug zog tshwm sim, lossis kev tsheb ciav hlau geometry tsis tuaj yeem khaws cia.
| 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 |
- Nyob rau hauv crane los yog industrial rails, xws li DIN 536 lossisQU series crane ntsia, kev hloov pauv tshwm sim ntau zaus, feem ntau txhua 10-20 xyoo, vim tias cov log tsheb muaj zog, lub zog sab nraud, thiab nres-thiab- mus txav nrawm nrawm thiab ua rau qaug zog. Cov cheeb tsam ze ntawm crane nres, nkhaus, thiab cov ntsiab lus hloov pauv feem ntau tau tshuaj xyuas ntau zaus, thiab kev hloov pauv yog qhov tseem ceeb thaum hnav lossis deformation tshaj qhov txwv tsis pub muaj kev nyab xeeb, txawm tias cov seem ntawm cov tsheb ciav hlau tseem muaj kev pabcuam.
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Crane Rail | qw 70 | 120 | 70 | 120 | 28 | 52.8 |
| qw 80 | 130 | 80 | 130 | 32 | 63.69 | |
| QU 100 | 150 | 100 | 150 | 38 | 88.96 | |
| qw 120 | 170 | 120 | 170 | 44 | 118.1 | |
| Txheem: DIN 536 | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Hauv qab | Thickness | |||
| A55 | 55 | 65 | 150 | 31 | 31.8 | 10-12 |
| A55 | 65 | 75 | 175 | 38 | 43.1 | |
| A75 | 75 | 85 | 200 | 45 | 56.2 | |
| A100 | 100 | 95 | 200 | 60 | 74.3 | |
| A120 | 120 | 105 | 200 | 72 | 100 | |
Kev tu thiab saib xyuas ua lub luag haujlwm tseem ceeb hauv kev teem caij tsheb ciav hlau hloov. Kev tshuaj xyuas tsis tu ncua, kuaj ultrasonic, kev sib tsoo tsheb ciav hlau, lubrication, thiab kev ntsuas geometry tuaj yeem txuas lub neej kev tsheb nqaj hlau los ntawm kev tshem tawm cov teeb meem me me, rov kho qhov profile kom zoo, thiab txo qis kev ntxhov siab. Kev npaj hloov pauv ua kom muaj kev nyab xeeb thaum txo qis qis qis qis, tshwj xeeb tshaj yog nyob rau hauv kev lag luam lossis chaw nres nkoj ib puag ncig uas cov haujlwm crane tseem ceeb heev.
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 |
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm cov 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 khoom, GNEE ua tau zoo steel rails uas tau 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.