Rail hnav hom, ntsuas cov qauv thiab kho cov kev daws teeb meem
Dab tsi yog hnav ntsug, lateral hnav, thiab corrugation, thiab lawv cov kev phom sij sib txawv yog dab tsi?
Vertical hnav yog hnav tsis sib xws ntawm cov tsheb ciav hlau tread nto, feem ntau txo qhov kev sib tw zoo - ntu ntawm txoj kev tsheb ciav hlau thiab ua rau nws tsis muaj zog - cov kabmob muaj peev xwm. Lateral hnav feem ntau tshwm sim ntawm cov ntu nkhaus, tshwm sim los ntawm lub log flange compression, yooj yim ua rau kev ntsuas qhov dav thiab kev tsheb ciav hlau spalling. Corrugation yog ib ntus wavy hnav ntawm lub tsheb ciav hlau sab saum toj, uas ua rau lub log hnyav dua -rail cuam tshuam, kev co, thiab suab nrov, ua kom nrawm nrawm thiab tsaug zog tsis ua haujlwm.
Dab tsi yog cov qauv siv feem ntau thiab txwv rau kev ntsuas kev tsheb ciav hlau?
Hauv Suav teb, TB/T 2344 thiab TB/T 3551 tau ua raws li: txoj kab ntsug hnav rau cov kab nrawm feem ntau yog 6-8 hli, thaum nws nruj dua rau siab- nrawm thiab hnyav- cov kab thauj khoom, feem ntau tswj ntawm 4-6 hli; qhov kev txwv ntawm sab nraud rau cov ntu nkhaus yog 4-7 hli. Tshaj cov kev txwv no yuav tsum tau sib tsoo lossis hloov.
Dab tsi yog qhov laj thawj tseem ceeb ntawm rail corrugation?
Nws yog feem ntau cuam tshuam nrog lub log-rail sib txuam nruj, fastener elasticity, nkhaus vojvoog, tsheb ciav hlau ceev, thiab qag load. Ntawm qhov ceev ceev, lub log- tsheb ciav hlau tus kheej- kev co zoo siab ua rau lub sij hawm qaug zog spalling ntawm rail sab saum toj cov khoom, maj mam tsim corrugation.
Dab tsi yog cov haujlwm thiab cov qauv kev ua haujlwm ntawm kev tiv thaiv kev sib tsoo tsheb ciav hlau?
Kev Ua Haujlwm: Tshem tawm qhov pib corrugation, tswj kev hnav kev txhim kho, rov qab kho lub taub hau profile, thiab txo lub log -rail cuam tshuam. Lub hauv paus ntsiab lus: kev sib tsoo thaum ntxov, sib tsoo lub teeb, thiab sib tsoo ntau zaus; zam kom txog thaum hnav qhov tob tshaj qhov txwv ua ntej hais txog qhov teeb meem.
Yuav ua li cas yog txoj kev kho mob tom qab rail hnav tshaj qhov txwv?
Mild: Rail sib tsoo los kho qhov profile; Nruab nrab: Vuam kho tom qab sib tsoo; Hnyav: Rail hloov. Ntawm cov ntu nkhaus, ntsuas qhov ntsuas thiab qhov siab tshaj plaws tuaj yeem hloov kho ib txhij los txo lub log flange lateral siab.