1. Puas muaj cov railway spikes nrog cov xim coatings, thiab lawv lub hom phiaj yog dab tsi?
Txawm tias tsis tshua muaj, qee qhov kev tsheb ciav hlau muaj cov xim coatings (xws li, liab, daj, lossis xiav) rau kev ua haujlwm tshwj xeeb, tsis yog kev zoo nkauj xwb. Cov xim coatings tuaj yeem qhia txog cov khoom siv dav dav (xws li xiav rau cov hlau tsis muaj steel, liab rau cov hlau alloy) los pab cov neeg ua haujlwm sai sai txheeb xyuas thiab xaiv hom kev teeb tsa. Lawv kuj tseem tuaj yeem kos cov kab hauv qhov tseem ceeb (piv txwv li, daj rau spikes nyob ze ntawm kev tsheb nqaj hlau) kom ceeb toom cov neeg ua haujlwm kom kuaj xyuas cov cheeb tsam ntawd kom zoo dua. Cov coatings tseem suav nrog cov khoom siv tiv thaiv- corrosion, yog li lawv tsis cuam tshuam qhov kev ua tau zoo ntawm tus kheej kheej- lawv tsuas yog ntxiv qhov pom kev rau kev saib xyuas thiab kev tsim kho.
2. Dab tsi yog qhov cuam tshuam ntawm kev sib tw ballast ntawm railway spikes?
Kev tso dej kom zoo zoo txhawb kev pw tsaug zog ruaj khov, uas tiv thaiv kev tsheb ciav hlau tsis ncaj. Ballast faib cov khoom thauj los ntawm tus neeg pw tsaug zog mus rau subgrade, txo qhov siab ntawm spikes thiab tiv thaiv lawv los ntawm loosening vim pw tsaug zog txav. Txawm li cas los xij, cov khoom tsis zoo lossis cov kab mob tsis zoo (xws li cov av nkos lossis pob zeb me me) tuaj yeem hloov mus rau lub sijhawm, ua rau cov neeg tsaug zog tig. Qhov tilting no ua rau muaj kev ntxhov siab tsis sib xws ntawm spikes, ua rau khoov lossis xoob. Ballast uas ntse dhau kuj tuaj yeem khawb qhov ntsia hlau loj, ua rau muaj kev tiv thaiv kev tiv thaiv -corrosion coatings thiab nrawm xeb. Kev saib xyuas ballast tsis tu ncua (ntxuav, tamping) yog li pab kom cov spikes ruaj ntseg.
3. Cov kev tsheb ciav hlau puas tuaj yeem siv rau hauv kev tsheb ciav hlau siab?
Yog, railway spikes yog dav siv nyob rau hauv elevated railway lem (xws li, nroog teeb rail viaducts). Cov kev nce siab feem ntau siv cov pob zeb pw tsaug zog, yog li cov ntsia hlau spikes lossis tus kws qhia cov ntsia hlau spikes yog qhov nyiam rau lawv qhov kev txhim kho muaj zog. Cov spikes no yuav tsum tiv tsis tau tsuas yog tsheb ciav hlau thauj khoom xwb tab sis kuj tseem muaj zog cua (feem ntau ntawm qhov siab siab), yog li lawv tau ua los ntawm siab - lub zog alloy steel. Cov spikes kuj tau coated los tiv thaiv cov dej los ntawm nag lossis pos huab, uas yog khaus ntau dua ntawm qhov siab. Kev tshuaj xyuas tsis tu ncua yog qhov tseem ceeb rau kev ua kom siab nce siab, vim tias txhua qhov kev xoob tuaj yeem ua rau muaj qhov tshwm sim hnyav dua vim qhov kev taug qab qhov siab.
4. Dab tsi yog qhov txawv ntawm txoj kev tsheb ciav hlau rau nqaim - ntsuas thiab tus qauv - ntsuas kev tsheb ciav hlau?
Nqaim- ntsuas kev tsheb ciav hlau me me ntawm qhov ntev thiab txoj kab uas hla, sib piv cov hlua sib dua thiab cov pw tsaug zog me me siv hauv nqaim- ntsuas cov kab. Lawv yuav tsum tau kho lub zog tsawg dua vim qhov nqaim - ntsuas cov tsheb ciav hlau feem ntau sib dua thiab qeeb dua. Standard -gauge railway spikes yog loj thiab muaj zog-feem ntau yog ua los ntawm alloy steel-los tuav hnyav rails, loj pw tsaug zog, thiab ntau dua loads ntawm standard-gauge tsheb ciav hlau (neeg nrog caij los yog freight). Qhov kev ncua deb ntawm spikes kuj txawv: nqaim- ntsuas cov lem yuav muaj qhov sib txawv me ntsis los ze zog rau kev ruaj ntseg, thaum tus qauv- ntsuas ntsuas ntsuas qhov sib npaug thiab lub zog raws li kev khiav tsheb.
5. Yuav ua li cas railway spikes tiv thaiv kev co los ntawm cov tsheb ciav hlau hla?
Railway spikes tiv thaiv kev co los ntawm lawv cov qauv tsim thiab cov khoom siv. Screw spikes siv threaded kev sib txuas uas kaw rau hauv pw tsaug zog, tiv thaiv kev sib hloov ntawm kev co. Cov spikes feem ntau muaj nruj haum rau cov neeg pw tsaug zog, nrog kev sib txhuam ntawm cov ntsia hlau loj thiab cov khoom siv pw tsaug zog txo qis zog. Alloy steel spikes, nrog siab toughness, nqus ib co zog vibration tsis loosening los yog tawg. Qee qhov spikes kuj muaj qhov nruab nrab knurled uas ua rau muaj kev sib txhuam nrog cov neeg pw tsaug zog. Tsis tas li ntawd, kev txhim kho kom zoo (piv txwv li, qhov tseeb qhov tob, kev sib dhos ntsug) ua kom cov spikes nyob ruaj ntseg, txawm tias nyob rau hauv rov qab vibration los ntawm cov tsheb ciav hlau tsis tu ncua.