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Kev tsis
Rail Nabla Clips: Khoom Specifications
| Parameter | Nabla Type A | Nabla Hom B (Insulated) | Nabla Hom C (High-Strength) |
|---|---|---|---|
| Khoom Qib | 51CrV4 Caij nplooj ntoos hlav steel | 51CrV4 + Nylon Insulator | 60Si2CrA alloy hlau |
| Nto tiav | Zinc Flake Txheej (40-50μm) | Epoxy-Polyester Powder Txheej | Kub-dip Galvanized (Ntau dua lossis sib npaug li 50μm) |
| Clip qhov siab (H) | 68 hli ± 1 hli | 70mm ± 1mm | 66 hli ± 1 hli |
| Qhov dav dav (W) | 25 hli ± 0.5 hli | 26 hli ± 0.5 hli | 24 hli ± 0.5 hli |
| Hlau Dia (Ø) | 13 hli ± 0.3 hli | 13 hli ± 0.3 hli | 14 hli ± 0.3 hli |
| Clamping Force | 10-12 kN | 9-11 kN | 12-15 kN |
| Installation Torque | 130-150 N·m | 120-140 N·m | 140-160 N·m |
| Nyhav ib Clip | 0.45 kg ± 0.02 kg | 0.48 kg ± 0.02 kg | 0.50 kg ± 0.02 kg |
| Ua haujlwm kub | -30℃rau +100 degree | -20℃rau +80 degree | -40℃rau +120 degree |
| Daim ntawv pov thawj | TS EN 13481-5, UIC 864 | TS EN 50122-1, IEC 61373 | TSI, AREMA Ch.30 |
Railway Nabla Clips: Engineering Application & Performance Validation
| Cov ntsiab lus thov | Installation Specification | Kev xav tau kev ua haujlwm | Field Test Method |
|---|---|---|---|
| Ballasted Track (Freight) | Ua ntej- nruab rau ntawm lub xub pwg nyom, cov cuab yeej hydraulic | Ntiv taw hnyav dua lossis sib npaug li 9 kN tom qab 1M GT | Dynamic load cell ntsuas |
| Ballastless Track (HSR) | Direct fixation rau baseplate, torque wrench | Vertical nruj 22-28 kN / mm | Impulse rauj zaus kuaj |
| Transit / Nroog Rail | Pandrol adapter phaj tau tshaj | Kev tiv thaiv hluav taws xob> 5 MΩ | Megger test @ 1000V DC |
| Curved Track (R <400m) | Txhim kho ntiv taw load +15% | Tsis muaj kev nkag mus tom qab 6 lub hlis | Optical khiav geometry scan |
| Daim ntawv thov ntawm Choj Deck | Elastic ncoo + Nabla clip sib dhos | Damping ratio Ntau dua los yog sib npaug rau 0.03 | Acceleration decay tsom xam |
| Cheeb tsam kub | Lub caij ntuj sov: +40℃/ Lub caij ntuj no: -25 degree | Clamping quab yuam variation < ± 10% | Lub caij muaj zog saib xyuas log |
| Kev Kho Vaj Tse | Kev tshuaj xyuas txhua 12 lub hlis | Retightening yog ntiv taw load <8 kN | Hydraulic jack + load gauge |
| Fatigue Life Validation | 10 lab cycles @ 15-30 kN | Tsis muaj tawg, ruaj khov teeb <1 mm | Laboratory pulsator xeem (EN 13146-6) |
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