1. Lub luag haujlwm tseem ceeb ntawm kev tsheb ciav hlau spikes yog dab tsi?
Rail spikes yog fasteners siv los ruaj ntseg rau cov ntoo sleepers (ties). Lawv tiv thaiv lateral thiab longitudinal txav ntawm txoj kev tsheb ciav hlau thaum tso cai rau thermal expansion. Feem ntau ua los ntawm siab - carbon steel, spikes yog tsav mus rau hauv ua ntej -drilled qhov nyob rau hauv pw tsaug zog ntawm ib lub kaum ntse ntse kom tuav tau. Kev sib raug zoo spike kom paub meej qhov dav dav thiab taug qab kev ruaj ntseg.
2. Hom kev tsheb ciav hlau dav dav yog dab tsi?
Aub spikes: Feem ntau siv dav, nrog lub chisel -zoo li tus taw tes rau cov ntoo pw.
Ntsia hlau spikes: Threaded tsim rau qhob pw tsaug zog, muab siab dua rub - tawm tsis kam.
Elastic spikes: Siv nrog caij nplooj ntoos hlav clips nyob rau hauv niaj hnub fastening systems.
Hook spikes: Muab lub taub hau khoov rau kev ua haujlwm ib ntus.
3. Yuav ua li cas spikes ntsia kom raug?
Spikes yog tsav ntawm ib15-20 ° kaummus rau txoj kev tsheb ciav hlau siv ib tug spike maul los yog hydraulic spike tsav tsheb. Installation cov kauj ruam:
Teem lub taub hau nrog ua ntej - cim pw tsaug zog qhov.
Tsav tsheb kom txog thaum lub taub hau yaug nrog rau qhov chaw pw tsaug zog.
Tsis txhob dhau- tsav tsheb kom tsis txhob muaj ntoo tawg.
Thaum kawg torque: 80-100 N·m rau ntsia hlau spikes.
4. Vim li cas cov spikes loosen lub sij hawm?
Loosening tshwm sim vim:
Sleeper ntoo shrinkage(seasonal hloov).
Dynamic tsheb ciav hlau loadsua rau gradual uplift.
Corrosiontxo kev sib txhuam.
Tsis zoo pib installation(tsis raug lub kaum sab xis / qhov tob).
Kev tsav tsheb tsis tu ncua- yuav tsum tau tsav tsheb txhua 2-3 xyoos.
5. Yuav ua li cas tiv thaiv spike corrosion?
Galvanization: Zinc txheej txuas lub neej ntev li 5-10 xyoo.
Epoxy txheej: Siv nyob rau hauv ntug dej hiav txwv / siab -cov av noo.
Kev tshuaj xyuas tsis tu ncua: Replace spikes showing >20% kev tiv thaiv xeb.
Los tiv thaiv-corrosion roj: Siv thaum kho.