Dab tsi yog qhov elasticity ntawm roj hmab rail pads?
Railway rubber ncoo, kuj hu ua roj hmab rail ncoo, roj hmab khi phaj. Nws yog ib qho tseem ceeb ntawm txoj kev tsheb ciav hlau, uas yog ib hom kev tsheb ciav hlau. Railway roj hmab ncoo yog ntsia nruab nrab ntawm steel rail thiab sleeper. Lub luag haujlwm ntawm txoj kev tsheb ciav hlau roj hmab ncoo yog los tiv thaiv cov neeg pw tsaug zog los ntawm kev cuam tshuam thiab crushing.
GNEE's EVA / HDPE / roj hmab rail pads yog nrog siab elasticity, siv rau cov hom kev tsheb ciav hlau xws li rail UIC54, UIC60, BS80lbs, BS100lbs, thiab ntau thiab tsawg raws li tau txiav txim. Cov ntaub qhwv tuaj yeem kho nrog lossis tsis muaj grooves, hauv ntau qhov tsim tau, nyob ntawm cov neeg siv khoom xav tau.
| HDPE Rail Pad | |||
| Technical Parameter | Chav tsev | Kev Xav Tau | Tus nqi |
| Qhov ntom | g/cm3 | 0.95-0.98 | 0.95 |
| Tensile zog | Mpa | Ntau dua lossis sib npaug li 19 | 19 |
| Elongation | % | >80 | 150 |
| Melting Point | degree | 170-190 | 190 |
| Rwb thaiv tsev Resistance | Ω | Loj dua los yog sib npaug rau 1 × 1010 | 3.5 ×1010 |
| Hardness | A | Ntau dua lossis sib npaug li 98 | 98(A) |
| EVA:Polyethylene 80%, Vinyl Acetate 20%. | |||
| Technical Parameter | Chav tsev | Kev Xav Tau | Tus nqi |
| Qhov ntom | g/cm3 | 0.95-0.98 | 0.95 |
| Tensile zog | Mpa | Ntau dua lossis sib npaug li 15 | 16 |
| Elongation | % | >500 | 550 |
| Melting Point | degree | 170-190 | 170 |
| Rwb thaiv tsev Resistance | Ω | Loj dua los yog sib npaug rau 1 × 1010 | 5.0 ×1010 |
| Hardness | A | Ntau dua lossis sib npaug li 90 | 92(A) |
| Rubber Rail Pad | ||
| Technical Parameter | Chav tsev | Tus nqi |
| Kev nruj | KN | 90-130 |
| Hardness Ntug A | degree | 72-80 degree |
| Electronic Resistance | Ω | Ntau dua lossis sib npaug rau 106 |
| Tensile zog ua ntej kev laus | Mpa | Ntau dua lossis sib npaug li 12.5 |
| Elongation ua ntej kev laus | % | Ntau dua lossis sib npaug li 250 |
Hauv cov ntsiab lus kev tshaj lij, elasticity tsis ntsuas los ntawm qhov muag ntawm cov khoom zoo li cas, tab sis los ntawm nws qhov tawv nqaij (k). Qhov no parameter ua hauj lwm raws li qhov tseem ceeb txuas ntawm lub tsheb ciav hlau dynamic rog thiab txoj kev ruaj ntseg. Kev nkag siab txog cov nuances ntawm qhov tawv nqaij yog qhov tseem ceeb rau kev xaiv cov khoom raug rau High-Speed Rail lossis Heavy Haul networks.
Static Stiffness: Sib npaug kev txhawb nqa thiab deflection
Thawj qhov kev ntsuas ntawm elasticity yog Static Stiffness, txhais tau tias yog qhov kev tiv thaiv ntawm Rail Pad mus rau ib qho maj mam siv ntsug load ( ntsuas hauv kN / mm). Tsis muaj ib tus lej "tso" elasticity; nws nyob ntawm daim ntawv thov.
Rau qhov hnyav - cov kab thauj khoom thauj, qhov tseem ceeb yog ntsuas kev tuav pov hwm. Yog li ntawd, cov engineers qhia txog qhov siab -Railroad Pad (feem ntau HDPE lossis nruj EVA, xws li 100-300 kN / mm) los tiv thaiv kev tsheb ciav hlau ntau dhau. Hloov pauv, rau High-Speed Rail, lub kaw lus yuav tsum muaj "softer" interface kom nqus tau qhov cuam tshuam. Ntawm no, Rail Elastic Pad (feem ntau grooved tej yam ntuj tso roj hmab) uas tsis tshua muaj static stiffness (nyob ib ncig ntawm 20-60kN / mm) yog siv los tso cai rau tsim nyog ntsug txav, ua raws li ib tug poob siab absorber rau cov pob zeb pw tsaug zog.
Lub Dynamic-rau-Static Ratio: Qhov Ntsuas Tseeb ntawm Kev Zoo
Tiag -kev ua tau zoo hauv ntiaj teb, txawm li cas los xij, tshwm sim thaum lub tsheb ciav hlau tsiv. Qhov no yog qhov uas Dynamic Stiffness tuaj rau hauv kev ua si. Nyob rau hauv siab - zaus vibrations tshwm sim los ntawm dhau lub log, cov khoom siv roj hmab zoo li khov.
Qhov zoo tshaj Rubber Track Pad yog tus cwj pwm los ntawm qhov qis Dynamic - rau -Static Stiffness Ratio. Yog tias qhov sib piv no siab dhau lawm, lub ncoo ua haujlwm zoo li lub kaw lus nruj hauv kev nrawm, xa suab nrov thiab kev co ncaj qha mus rau ballast. Ntawm GNEE RAIL, peb cov khoom siv roj hmab zoo tshaj plaws yog tsim los tswj tus nqi qis (feem ntau<1.5), ensuring that the pad remains elastic and effective at dampening vibrations even at speeds exceeding 300 km/h.
Precision Engineering ntawm GNEE RAIL
Ua kom tiav qhov tseeb elasticity yog ib qho teeb meem ntawm cov tshuaj lom neeg sib xyaw ua ke thiab cov qauv duab geometry. GNEE RAIL ua haujlwm tag nrho cov chaw soj ntsuam kuaj xyuas kom paub tseeb cov kev ntsuas tseem ceeb no.
Peb tsis yog muab cov khoom siv xwb; peb validate lawv. Txawm hais tias koj qhov project xav tau ib qho kev nkhaus tshwj xeeb los tiv thaiv kev cuam tshuam hauv nroog lossis lub ncoo nruj rau cov khoom lag luam, peb hloov kho cov qauv kom tau raws li qhov tseeb nruj kam rau ua (feem ntau nyob rau hauv ± 10%).Hu rau GNEE RAILkom ntseeg tau tias koj cov kab ke khiav muaj qhov elasticity meej uas yuav tsum tau ua kom ntev -kev nyab xeeb.