Rail spikes ua kom cov tsheb ciav hlau ruaj khov rau cov neeg pw tsaug zog thiab tuav ntsuas los ntawm kev sib tsoo, thermal txav thiab kev co. Nyob rau hauv cov cheeb tsam txias, qhov spike raug cuam tshuam rau nkig - puas tsuaj, thermal contraction, ice wedging nyob rau hauv lub qhov, thiab corrosive ntsev los ntawm de-icing. Lub pob zeb uas tawg lossis poob tuav thaum lub caij ntuj no yog qhov nyuaj los hloov hauv cov pob khov khov, yog li txias - huab cua kev ua tau zoo yuav tsum tau tsim nyob rau ntawm theem tshwj xeeb, tsis pom ntawm qhov chaw.
1. Yuav ua li cas Kub Kub cuam tshuam rau Spike Steel
Cov pa roj carbon steel poob ductility thaum kub poob: cuam tshuam lub zog poob thiab cov hlau tuaj yeem tawg hauv kev poob siab. Qhov kev pheej hmoo yog tswj hwm los ntawm kev qhia cov hlau uas tau hais tseg Charpy V-tus nqi qis ntawm sub-zero kub, kuaj raws ISO 148-1. Alloy steel spikes, feem ntau nruab nrab - qib carbon nrog chromium thiab manganese ntxiv, ua haujlwm hnyav txog li -40 degrees C. Plain Q235-hom carbon spikes yog siv tau rau thaj tsam lub caij ntuj no me me tab sis yuav tsum tau tshuaj xyuas ntau zaus uas qhov kub thiab txias qis dua -30 degrees C rau lub lis piam ib zaug. Nickel-alloyed versions tau teev tseg rau cov kev pabcuam Arctic.
2. Kev tiv thaiv corrosion nyob rau hauv ib puag ncig daus thiab dej khov
Melting snow loaded nrog txoj kev thiab platform de-icing ntsev tawm tsam tus ntsia hlau loj shank ntawm txoj kab pw tsaug zog, lub classic tsis ua hauj lwm taw tes. Kub-dip galvanizing ib EN ISO 1461 muab cov txheej tuab tuab; electroplated zinc yog nyias thiab haum rau hauv tsev lossis qhuav daim ntaub ntawv. Txheej kev puas tsuaj thaum tsav tsheb yuav tsum tau kho nrog zinc- cov xim nplua nuj, vim tias lub ntsej muag liab qab corrodes sai dua li cov coated nto nyob ib ncig ntawm nws. Hauv txoj kev hauv tsev hluav taws xob, kuj tseem lees paub tias cov txheej txheem thiab cov kab sib dhos tsis sib haum xeeb tsis tsim cov kab hluav taws xob uas tsis xav tau uas pub stray-tam sim no electrolytic corrosion.
3. Kev teeb tsa ntawm Frozen Sleepers
Frozen ntoo sleepers cais yooj yim, yog li dev spikes yuav tsum tau tsav mus rau hauv ua ntej -drilled pilot qhov luaj li cas mus txog 80% ntawm lub shank txoj kab uas hla. Screw spikes yuav tsum tau muab tso rau hauv ua ntej-drilled qhov nrog lub torque-tswj tsav tsheb: tshaj-torque strips threads nyob rau hauv khov ntoo, thiab nyob rau hauv -torque tawm lub spike xoob tom qab thawj thaw voj voog. Vim hais tias steel thiab ntoo cog lus ntawm tus nqi sib txawv, teem caij rov qab - zawm dhau ib zaug hauv av tau thawed rau lub caij nplooj ntoos hlav es tsis txhob cia siab rau raws li - pw torque.
4. Load peev thiab tuav lub caij ntuj no
Kev rub tawm - tawm tsis kam yog 5-8 kN rau carbon steel spikes nyob rau hauv cov ntoo sleepers thiab 8-12 kN rau alloy steel spikes, nrog rau cov qhob pw tsaug zog muab nqi siab dua thaum ntsia hlau spikes koom yas dowels los yog cam khwb cia-in inserts. Dej khov nyob rau hauv lub qhov ib ntus tsa tuav, uas npog cov spikes xoob; torque thiab rub tawm cov tshev yuav tsum yog raws li kev ntsuas ntsuas ntawm qhov sib piv. Tshaj qhov ntsuas rub-tawm load drives hom tsis ua hauj lwm los ntawm maj mam loosening mus sai li sai tau tshem tawm, yog li load peev xwm yog ib tug tsim ciam teb, tsis yog ib tug txij nkawm reserve.
5. Lub caij ntuj no tshuaj xyuas thiab tu
Tshawb xyuas tom qab thawj zaug txias snap thiab dua ntawm thaw: saib lub taub hau tawg, shank corrosion ntawm kab pw tsaug zog, thiab txheej ua txhaum cai.
Tshawb xyuas lub zog ntawm cov qauv ntawm cov ntsia hlau spikes ib kab; re-tighten tej spikes hauv qab lub torque teev.
Ntshiab daus thiab ntim dej khov los ntawm ib ncig ntawm lub taub hau taub hau kom pom qhov kev tshuaj xyuas yog ua tau.
Hloov cov kab nrib pleb lossis hnyav corroded tam sim ntawd; lub caij ntuj no tsis ua hauj lwm ntawm Frost -heaved pw tsaug zog tuaj yeem kis tau sai.
Khaws cov ntaub ntawv rau lub caij ntuj no ntawm cov hlau nplaum thiab cov zinc kho xim ntawm cov chaw saib xyuas.
FAQ
Q1: Yuav ua li cas railway spikes tiv hnav lub sij hawm?
Hnav tsis kam yog los ntawm shank hardness, ib tug du nto uas txo cov kev sib txhuam nrog cov tsheb ciav hlau ko taw thiab pw tsaug zog, thiab kev saib xyuas uas tshem tawm abrasive xuab zeb thiab gravel los ntawm qhov chaw sib cuag. Thickened nruab nrab seem thiab hardened taub hau ncua kev pab cuam lub neej ntawm tibneeg hu tauj coob kab.
Q2: Dab tsi yog xim ntawm txoj kev tsheb ciav hlau tshiab?
Cov pa roj carbon monoxide dawb qhia cov nyiaj -grey metallic lustre; alloy steel spikes yog ib tug me ntsis darker grey; stainless hlau spikes yog ci thiab reflective. Zinc plating ntxiv xiav - dawb lossis grey tone, thiab qee qhov haujlwm qhia txog cov xim pleev xim rau lub xyoo - ntawm - kev txheeb xyuas kev teeb tsa.
Q3: Vim li cas cov pob zeb pw tsaug zog siv cov ntsia hlau spikes es tsis txhob aub spikes?
Lub pob zeb yog ib qho nyuaj thiab tuab heev los txais rau rau-tsav spikes. Screw spikes yog tig mus rau hauv ua ntej-drilled qhov los yog yas dowels thiab tsim ib tug zoo threaded tuav, muab lub siab dua rub- tawm tsis kam uas ua vaj tse - pw tsaug zog khiav yuav tsum tau nyob rau hauv high- ceev thiab hnyav- cab kab.
Q4: Dab tsi yog qhov siab tshaj plaws ntawm txoj kev tsheb ciav hlau tuaj yeem tiv taus?
Kev rub tawm - tawm lub peev xwm yog 5-8 kN rau carbon steel thiab 8-12 kN rau alloy steel spikes, nrog rau tus nqi nyob ntawm cov khoom siv pw tsaug zog, qhov mob thiab txheej. Kev kuaj cov qauv ntau lawm paub meej tias kev ua raws cai; tshaj qhov ntsuas load ua rau rho tawm tam sim ntawd.
Q5: Cov spikes puas tuaj yeem ua tau zoo ntawm -40 ° C?
Yog lawm, yog tias cov hlau tau teev rau qhov ntsuas kub tsis tshua muaj qhov ntsuas Charpy, cov txheej txheem tsis zoo, thiab kev teeb tsa ua ntej -drilling thiab torque- tswj kev xyaum. Cov pa roj carbon monoxide dawb yog qhov tsis muaj zog thiab xav tau kev tshuaj xyuas lub caij ntuj no ntau zaus hauv huab cua hnyav.
Q6: Yuav ua li cas khaws cov spikes nyob rau lub caij ntuj no?
Khaws cov spikes hauv tsev lossis hauv qab npog, tawm hauv av, hauv qhov chaw qhuav thiab qhov cua kom tiv thaiv cov txheej los ntawm ya raws thiab condensation. Kev kub ceev nrawm nrawm hauv ib lub tsev khaws khoom uas tsis muaj cua sov tuaj yeem ua rau cov hlau tsis sib haum, yog li cov ntim ntim ntim lossis cov roj ntim tau nyiam rau lub sijhawm ntev - lub caij ntuj no cov khoom lag luam.