Railroad Spike
Railroad spikes ua lub luag haujlwm tseem ceeb hauv kev ruaj ntseg kev tsheb ciav hlau rau cov neeg pw tsaug zog, yog li tiv thaiv kev taug kev deformation thiab ua kom muaj kev nyab xeeb thiab kev ua haujlwm ntawm kev tsheb ciav hlau. Los ntawm kev sib txuas cov lem nrog cov neeg pw tsaug zog, lawv txhim khu kev ruaj ntseg thiab kev ua haujlwm ntev ntawm txoj kev tsheb ciav hlau. Qhov thib ob hom ntawm kev tsheb ciav hlau spikes yog dev spikes thiab ntsia hlau spikes.
Daim ntawv thov ntawm Railroad Spike
Kev siv ntawm kev tsheb ciav hlau spikes hla ntau theem ntawm kev tsim kho tsheb ciav hlau thiab kev saib xyuas. Hauv kev tsim kho, lawv yog qhov tseem ceeb hauv kev ruaj khov railway lem rau cov neeg pw tsaug zog, yog li txhim kho kev ua haujlwm kev nyab xeeb thiab ruaj khov. Thaum lub sij hawm txij nkawm kev ua ub no, kev tsheb ciav hlau spikes yog siv los hloov cov spikes worn-out los yog puas, kom ntseeg tau tias tsis muaj kev cuam tshuam kev ua haujlwm ntawm railway lem.