A rail ncooyog muab tso rau hauv nruab nrab ntawm lub tsheb ciav hlau thiab baseplate los yog sleeper. Rail ncoo yog qhia rau txoj kev tsheb ciav hlau fastening system vim nws cov resilience los yog viscoelasticity uas yuav siv tau nyob rau hauv kev cuam tshuam ntawm qaug zog tawg ntawm pw tsaug zog. Lub dynamic kev nyuab siab los ntawm lub log los yog kev tsheb nqaj hlau cuam tshuam los ntawm ob qho tib si tsis tu ncua thiab tsis xwm yeem txav yog attenuated.
Dab tsi yog cov khoom siv rau kev tsheb ciav hlau?
Common rail ncoo cov ntaub ntawv muaj xws li Roj Hmab (natural, SBR, EPDM) rau kev poob siab zoo heev, Polyurethane (PU) rau kev ua haujlwm ntev, thiab cov yas tsis zoo li HDPE (High-Density Polyethylene) thiab EVA (Ethylene Vinyl Acetate) kom muaj peev xwm thauj khoom siab, feem ntau sib xyaw los yog siv rau hauv microfoam (tp, 1}) tsis kam, thiab kev co damping rau ntau yam kev tsheb ciav hlau xav tau xws li siab -ceev lossis hnyav thauj.
| 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) |
| 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 |
| 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) |
Dab tsi yog cov txiaj ntsig ntawm kev siv EVA thiab HDPE roj hmab los tsim cov hlua khi hlua khi?
Siv EVA (Ethylene-Vinyl Acetate) thiab HDPE (High-Density Polyethylene) hauv rail pads muab kev co / suab nrov dampening, tiv thaiv cov neeg pw tsaug zog los ntawm kev cuam tshuam, faib cov loads, tiv thaiv kev laus / huab cua / tshuaj, muaj hluav taws xob rwb thaiv tsev, thiab txuas ntxiv lub neej elasticity ntawm combining. tus nqi-kev ua tau zoo ntawm cov yas rau kev nyab xeeb, ntsiag to, thiab ntev dua - txoj kev tsheb ciav hlau kav ntev.
Material Durability:
- EVA: Muab cov elasticity zoo, qis - qhov kub thiab txias, thiab kev poob siab.
- HDPE: Muab lub zog siab, hnav tsis kam, thiab zoo thermal / huab cua tsis kam.
- Kev sib xyaw ua ke: Cov roj hmab hluavtaws / yas sib xyaw ua kom muaj kev laus zoo dua, cua sov, thiab tshuaj lom neeg ua haujlwm piv rau cov roj hmab ntuj.
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. Nyob rau hauv railway fastening system, roj hmab rail pads feem ntau ntsia nruab nrab ntawm txoj kev tsheb ciav hlau thiab cov pob zeb railway sleepers.