HDPE Rail Pad vs EVA Rail Pad
Nov 25, 2025
HDPE Rail Pad vs EVA Rail Pad
A rail ncoo, tseem hu ua rail roj hmab phaj, yog tsim los ntawm lub tsheb ciav hlau khi phaj thiab ko taw ntawm txoj kev tsheb ciav hlau, ua los ntawm elastic polyurethane lev, uas yog interposed ntawm steel rails thiab khi sleepers los tiv thaiv lub sleeper saum ntawm hnav thiab cuam tshuam. Nws txoj kev nruj nruj yog siv los ua kom lub elasticity ntawm lub superstructure ntawm lub ballast thiab txo kev poob siab thiab kev vibration hauv txoj kev tsheb ciav hlau. Nrog xws li kev hloov kho cov khoom xa tawm, nws yuav ua rau cov neeg caij tsheb muaj kev nplij siab ntau dua thiab hnav tsawg dua mus rau lub superstructure. Lub zog elasticity cuam tshuam zoo rau kev hnav ntawm cov khoom superstructure thiab dov Tshuag. Nws yog ib txwm fastened nyob rau hauv ib tug fastening system los ntawm cov ntsia hlau spikes los yog rail bolts rau hauv lub sleeper ties.
HDPE thiab EVA rail pads txawv feem ntau nyob rau hauv lawv muaj pes tsawg leeg, nrog HDPE yog siab - ntom polyethylene thiab EVA yog ib tug sib tov ntawm polyethylene thiab yas acetate. HDPE rail pads paub txog lawv lub zog siab, rigidity, thiab zoo heev hnav thiab huab cua tsis kam, ua rau lawv ruaj khov heev. EVA pads, nrog rau lawv cov elongation siab, kuj tseem ruaj thiab muab kev poob siab zoo. Qhov kev xaiv ntawm lawv feem ntau yog nyob ntawm cov kev xav tau tshwj xeeb, xws li xav tau rigidity piv rau qhov yooj.
| Feature | HDPE Rail Pad | EVA Rail Pad |
|---|---|---|
| Kev sib xyaw | High-density polyethylene (HDPE) los yog HDPE- roj hmab composite | Ethylene -vinyl acetate (EVA) |
| Cov khoom tseem ceeb | Siab zog, siab rigidity, zoo heev hnav thiab huab cua tsis kam, zoo rwb thaiv tsev | High elongation, zoo poob siab, zoo rwb thaiv tsev |
| 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) |
Cov ntawv thov thiab xaiv
- Xaiv HDPE thaum:Koj xav tau siab tshaj plaws rigidity thiab ntev - lub sij hawm durability nrog siab tiv taus hnav, huab cua, thiab corrosion.
- Xaiv EVA thaum:Koj xav tau siab elasticity thiab kev poob siab, nrog lub peev xwm ntau dua rau kev ncab yam tsis muaj kev tawg.
Ob qho khoom sivyog siv nyob rau hauv railway fastening systems los faib lub log loads, nqus tej yam, txo kev co, thiab tiv thaiv hnav ntawm lub tsheb ciav hlau thiab cov pw tsaug zog.
Lub rail ncoo nteg nyob rau hauv lub tsheb ciav hlau yog siv los lav
- Lub load faib npog thaj tsam loj dua
- Txo cov load concentration thiab kev siv qaug zog kev nyuaj siab
- Txawm thaj chaw sib cuag ntawm txoj kev tsheb ciav hlau thiab cov khoom txhawb nqa
- Txo cov suab nrov thiab cov qauv kev co
- Sealing muaj nuj nqi ntawm kev txhawb nqa sab saum toj thiab kev tsheb nqaj hlau hauv qab
- Txo cov tsheb ciav hlau hnav thiab cuam tshuam cov khoom txhawb nqa
Raws li ib tug kws rail fastener chaw tsim tshuaj paus,GNEE RAILtuaj yeem tsim ntau hom roj hmab rail pads nrog cov ntaub ntawv sib txawv, xws li roj hmab ntuj, EVA, HDPE thiab lwm yam. 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.
