Yuav ua li cas xaiv ib lub tsheb ciav hlau ncoo uas tsim nyog hardness?
Xaiv txoj cai rail ncootawv, phim nws rau koj hom kev taug qab & thauj khoom (hnyav thauj khoom hnyav dua / tuab dua, hauv nroog xav tau softer rau kev co), xaiv cov khoom siv zoo (Rubber rau damping, HDPE rau lub zog, Composite rau kev sib npaug) siv Shore A / D nplai, thiab xyuas kom meej tias nws ua tau raws li koj qhov kev sib tw ceev kom sib npaug kev poob siab nrog kev ruaj ntseg thiab tiv thaiv kev puas tsuaj.
Feem ntau,70 ± 5 Ntug Afeem ntau, tab sis cov khoom hnyav yuav xav tau Shore D, thaum cov ntaub mos muag (qis Shore A) haum siab - cov kab nrawm rau damping.
Yam tseem ceeb rau kev xaiv Hardness
Daim ntawv thov khiav (Load & Speed):
- Heavy Haul/Freight:Xav tau lub zog compressive siab (Ntau dua, tuab dua li HDPE lossis cov khoom sib xyaw) los tuav lub qag loj (Ntau dua lossis sib npaug li 25t) thiab tiv thaiv kev pw tsaug zog.
- High -Speed Rail:Xav tau kev co zoo heev damping (Softer, feem ntau roj hmab los yog ib qho kev sib xyaw) rau smoothness, nrog tswj thickness kom ruaj khov.
- Nroog / Lub Teeb Rail:Tsom ntsoov rau lub suab nrov / kev vibration txo (Softer, roj hmab).
Khoom siv:
- Roj Hmab (Natural / SBR):Siab elasticity, zoo vibration damping (15-20dB), txo kev laus tiv thaiv.
| 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 (High -Density Polyethylene):High hardness (65-75D), siab zog, zoo heev hnav / corrosion kuj, tsis zoo elasticity.
| 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) |
- Composite (Rubber + Fiber):Cov khoom sib npaug: zoo damping (12-15dB) thiab lub zog, haum rau kev sib xyaw ua ke.
- Polyurethane (PU):Dav dav elastic modulus ntau yam, kho tau zoo rau cov kev xav tau tshwj xeeb, zoo rau siab - kab kawg.
Hardness Scale & Piv txwv
- Ntug A:Rau softer elastomers (cov roj hmab, hloov tau cov yas). Feem ntau rau cov ntaub qhwv: 55A txog 75A.
- Ntug D:Rau cov ntaub ntawv nyuaj. HDPE tej zaum yuav nyob rau hauv 65D-75D ntau yam.
- Hom kab:Feem ntau nyob ib ncig ntawm 70 ± 5 Ntug A rau kev siv dav dav, tab sis qhov no txawv heev.
GNEE RAILyog nruab nrog rail ncoo cov kab ntau lawm rau 130sets ntawm cov cav tov, rau tag nrho cov txheej txheem ntawm kev txhaj tshuaj, refining roj hmab, sulfuration, molding thiab tshuaj xyuas, thiab lwm yam. Peb muaj cov engineers feem ntau rau rail ncoo txoj kev loj hlob, tsim, ntau lawm thiab tshuaj xyuas, nrog txhua xyoo muaj peev xwm ncav cuag 2000, 000 daim.
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.