Dab tsi thickness ntawm rail pads yuav tsum tau rau siab - ceev railways?
Railway rail ncoo yog ntsia nruab nrab ntawm cov hlau rail thiab pob zeb pw tsaug zog, nws lub luag haujlwm tseem ceeb yog los txo cov kev poob siab thiab kev co hauv cov tsheb ciav hlau fastening systems.
Rau siab - kev tsheb ciav hlau ceev, rail pad thickness feem ntau yog 8-10 hli rau ballastless lem, tsom rau kev ruaj ntseg, thaum qee lub tshuab siv ob npaug - txheej pads (tag nrho 18-22 mm), nrog rau cov thicknesses nyob ntawm cov qauv khiav (ballast / ballastless) thiab tsim cov kev xav tau rau ntau qhov kev vibration-piv txwv li 1 hli. kev siv ceev ceev.
Hom Thickness Ntau Yam:
- Ballastless Tracks : Feem ntau siv cov ntaub nyias nyias (8-10 mm) lossis tshwj xeeb ntau txheej tsim (20-30 mm tag nrho) rau kev tswj kom meej.
- Ballasted Tracks: siv cov ntaub tuab me ntsis (10-12 hli) los them rau ballast elasticity.
- General High -Speed: Ntau yam ntawm 8-12 mm.
Cov ntsiab lus tseem ceeb rau Thickness:
- Kev vibration & suab nrov: Cov ntaub qhwv tuab dua nqus ntau dua kev co thiab txo cov suab nrov, tseem ceeb heev rau cov neeg caij tsheb kev nplij siab ntawm kev kub ceev (200-350 km / h).
- Track Stability: Pad thickness cuam tshuam rau txoj kab ntsug ntsug; tuab heev tuaj yeem txo qhov ruaj khov, thaum nyias nyias xa cov kev poob siab ntau dhau.
- Load Distribution: Thicker pads kis tus load hla ib cheeb tsam dav, txo kev ntxhov siab rau cov neeg pw tsaug zog.
- Khoom siv: Qee cov qauv tsim tshwj xeeb siv cov ntaub qhwv (piv txwv li, 5mm sab saum toj txheej rau kev co, 13-17mm puag rau kev txhawb nqa) rau kev xav tau ceev.
Hauv kev tsim khoom thiab muab cov khoom siv tsheb ciav hlau (cov ntaub ntawv taug qab),GNEE RAILqhia tau hais tias muaj txiaj ntsig zoo hauv kev tsim muaj peev xwm, kev ua tau zoo, cov khoom lag luam yoog raws, thiab kev pabcuam thoob ntiaj teb.
Peb cov EVA / HDPE / roj hmab rail pads yog nrog siab elasticity, thov rau hom kev tsheb ciav hlau xws li tsheb ciav hlau 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.
| 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 rau 12.5 |
| Elongation ua ntej kev laus | % | Ntau dua lossis sib npaug li 250 |
| 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 rau 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) |
