Yuav ua li cas sib txawv thiab xaiv cov khoom siv Rail Pad zoo tshaj plaws?
Rail padstuaj yeem tiv thaiv kev tsheb ciav hlau pw tsaug zog abrasion thiab crushing ntawm lub sleeper nyob rau hauv lub tsheb ciav hlau ko taw. Roj hmab rail pads feem ntau yog tsim los rau ib qho kev teev tseg - tus yam ntxwv deflection. Thawj qhov tawv tawv ntawm lub tsheb ciav hlau yog tsim los kom qis kom lawv cov deformations nyob rau hauv cov ntiv taw ntiv taw hnyav heev. Qhov no ua kom ntseeg tau tias cov tsheb ciav hlau tseem nyob hauv kev sib raug zoo nrog cov tsheb ciav hlau txawm tias muaj kev txav ntsug ntawm qhov kawg.
Txhawm rau xaiv qhov zoo tshaj plaws rail ncoo, sib txawv cov ntaub ntawv los ntawm kev xav tau kev ua haujlwm: Ntuj Roj Hmab rau siab -ceev kev nplij siab (kev co damping),
Polyurethane (PU) rau huab cua huab cua / hnyav loads (durability), EPDM rau huab cua tsis kam, los yog Composites (rubber / HDPE) kom sib npaug cushioning / hnav, ces phim rau daim ntawv thov yam xws li ceev, load, ib puag ncig (temp, humidity, tshuaj) thiab xav tau kev pab lub neej, kom zoo thickness rau load thiab vibration txo lub hom phiaj.
Cov khoom sib txawv
Ntuj Roj Hmab (NR):
- Pros: elasticity zoo heev, siab - zaus vibration absorption, kev nplij siab / damping rau kev kub ceev.
- Cons: Kev laus / huab cua tsis zoo, lub neej luv dua (5-8 xyoo).
- Qhov zoo tshaj plaws rau: High - kab ceev, tsheb thauj mus los hauv nroog (kev ua kom pom tseeb).
Styrene-Butadiene Rubber (SBR):
- Pros: Kev laus / hnav tsis kam zoo dua li cov roj hmab ntuj.
- Qhov zoo tshaj plaws rau: Kev siv dav dav, ntau yam huab cua.
EPDM:
- Pros: huab cua zoo tshaj / UV / tshuaj tiv thaiv, zoo rau huab cua huab cua.
- Qhov zoo tshaj plaws rau: hnyav hnyav, ballastless lem.
Polyurethane (PU):
- Pros: Zoo heev tiv taus ya raws, kub siab (-40℃txog 80 degree), puas, tsim kua muag; kev nqus dej tsawg.
- Qhov zoo tshaj plaws rau: hnyav, av noo, lossis huab cua kub ib puag ncig; hnyav thauj, siab - kab nrawm (ua kom pom tseeb).
Composite (Rubber / HDPE):
- Pros: Sib npaug roj hmab cushioning (sab saum toj txheej) nrog HDPE hnav tsis kam (hauv qab txheej).
- Qhov Zoo Tshaj Plaws Rau: Cov kab sib xyaw ua ke (cov neeg caij tsheb / thauj khoom) xav tau ob qho tib si damping thiab durability.
| 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 |
Siab -Density Polyethylene (HDPE):
- Pros: High rigidity, zoo heev hnav / corrosion kuj, lub neej ntev heev (10-15 xyoo).
- Cons: Tsis muaj cushioning.
- Qhov Zoo Tshaj Plaws Rau: Cov kab tsheb thauj khoom, kev lag luam / kuv cov lem (kev saib xyuas qis).
| 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) |
Rail pad muaj nuj nqi
Rail roj hmab ncoo yog qhov tseem ceeb hauv kev txo qis kev poob siab thiab kev co hauv lub tsheb ciav hlau. Lub ncoo nteg nyob rau hauv lub tsheb ciav hlau los xyuas kom meej:
Load faib tshaj qhov loj dua
Tshem tawm ntawm load concentration thiab ua rau qaug zog stresses
Centering ntawm loads ntawm cov khoom txhawb nqa
Kev nqus ntawm qhov tsis sib xws ntawm qhov chaw sib txuas ntawm kev tsheb nqaj hlau thiab kev txhawb nqa
Txo cov suab nrov thiab kev co
Kev sib khi ntawm lub hauv qab ntawm txoj kev tsheb ciav hlau thiab sab saum toj ntawm kev txhawb nqa
Txo kev hnav ntawm txoj kev tsheb ciav hlau thiab nws cov kev txhawb nqa
Raws li cov chaw tsim khoom ntawm kev tsheb ciav hlau, GNEE RAIL muaj peev xwm tsim cov tsheb ciav hlau ntawm ntau lub tsheb ciav hlau, xws li UIC54, UIC60, BS80lbs, BS100lbs thiab lwm yam. Tsis tas li ntawd, peb tuaj yeem muab kev cai- ua cov ntaub qhwv raws li cov duab kos lossis cov qauv.
GNEE RAIL rail pad parameter qhov tseem ceeb
| Ntug dej | 75±5 |
|---|---|
| Maximum Tensile Lub zog |
12.7N / hli2 |
| Elongation | 255% (200% tom qab laus) |
| Ua haujlwm Kub |
-30℃~ +110 degree |
| Kev vibration Kev txo qis |
45% ~ 50% |
| Suab nrov Kev txo qis |
12% |
| Txheej Txheem | ＜5% (20% tom qab laus) |
Peb 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.
