1. Txoj kev tsheb ciav hlau yog dab tsi, thiab nws lub luag haujlwm tseem ceeb yog dab tsi hauv kev khiav tsheb?
Lub tsheb ciav hlau txoj kev tsheb ciav hlau yog qhov ntev, siab - lub zog steel tivthaiv uas ua rau qhov chaw khiav ntawm lub tsheb ciav hlau log, coj lawv txoj kev txav mus los thiab faib cov khoom thauj. Nws lub luag haujlwm tseem ceeb yog hloov qhov hnyav ntawm cov tsheb ciav hlau (los ntawm cov log mus rau cov neeg pw tsaug zog, tom qab ntawd mus rau lub txaj ballast) thaum tswj kev ruaj khov geometry (gauge, alignment, elevation). Yog tsis muaj kev tsheb ciav hlau, tsheb ciav hlau yuav tsis muaj txoj hauv kev, ua rau muaj kev tsis ruaj khov thiab muaj kev nyab xeeb. Rails kuj yuav tsum tau tiv thaiv hnav, cuam tshuam, thiab thermal expansion-txhua yam tseem ceeb rau kev ua haujlwm ntev -.
2. Dab tsi yog cov khoom siv ntawm cov tsheb ciav hlau, thiab lawv cov yam ntxwv yog dab tsi?
Cov feem ntau railway rail qib yogTSI 54, UAS 60(Cov qauv European),AREMA 115 RE TSI, AREMA 132 RE(American qauv), thiabSuav GB 60kg / m(sib npaug rau UIC 60). UIC 54 (54kg / m) haum rau nruab nrab- cov kab thauj khoom (xws li cov neeg caij tsheb hauv cheeb tsam) nrog qhov sib npaug ntawm lub zog thiab tus nqi. UIC 60 (60kg / m) muaj zog tensile siab dua (Ntau dua lossis sib npaug ntawm 780MPa) rau siab-ceev (Ntau dua lossis sib npaug rau 250km / h) thiab hnyav-haul (Ntau dua lossis sib npaug rau 20t qag load) kab. AREMA 132RE (64.7kg/m) tuav ultra{18}}hnyav freight (axle loads Ntau tshaj los yog sib npaug rau 35t) nyob rau hauv North America nrog enhanced hnav tsis kam. Txhua yam siv pearlitic steel, sib txuas hardness thiab toughness.
3. Dab tsi yog qhov txawv ntawm UIC 54 thiab UIC 60 rails, thiab lawv siv qhov twg?
UIC 54 rails hnyav 54kg / m, nrog rau 73 hli - lub taub hau dav thiab 15.5 hli - tuab lub vev xaib - zoo tagnrho rau qis - nrawm, nruab nrab - cov kab tsheb (piv txwv li, cov kab nyob deb nroog, qag loads tsawg dua lossis sib npaug li 20t). UIC 60 rails (60kg / m) muaj lub taub hau dav (75mm), lub web tuab (16.5mm), thiab siab tensile zog (Ntau dua los yog sib npaug rau 780MPa vs. UIC 54's Ntau dua lossis sib npaug rau 720MPa). Lawv tau siv rau kev siab - kev tsheb ciav hlau ceev (piv txwv li, Tebchaws Europe TGV), hnyav- thauj khoom thauj (coal thauj), thiab cov kab hauv nroog. Qhov hnyav ntxiv thiab lub zog ntawm UIC 60 cia nws ua haujlwm hnyav dua thiab hnav tsis tu ncua, thaum UIC 54 yog tus nqi -zoo rau cov kev xav tau tsawg dua.
4. AREMA 115RE rail yog dab tsi, thiab dab tsi yog nws cov kev siv?
AREMA 115RE yog Asmeskas tus qauv kev tsheb nqaj hlau, hnyav ~ 57kg / m (115 phaus ib yard). Nws muaj lub zog tensile ntawm Ntau dua lossis sib npaug rau 827MPa thiab lub taub hau profile zoo rau cov neeg caij tsheb sib xyaw- tsheb thauj khoom. Cov ntawv thov muaj xws li North American mainlines nrog 25-30t qag loads (piv txwv li, Amtrak cov kev hauv cheeb tsam, cov khoom thauj khoom thauj) thiab cov tsheb thauj neeg hauv nroog (xws li Chicago's Metra). Tsis zoo li qhov hnyav dua AREMA 132RE, nws sib npaug ntawm kev ua haujlwm ntev thiab tus nqi rau tsis yog -ultra- tsheb loj, ua rau nws ua haujlwm rau nruab nrab - kab kev tsheb ciav hlau xav tau.
5. Yuav ua li cas siab - cov tsheb ciav hlau ceev (piv txwv li, rau 350km / h) txawv ntawm cov pa tsheb ciav hlau li cas?
High - cov tsheb ciav hlau ceev (xws li Tuam Tshoj CRTS 300N, UIC 60 rau 350km / h) muaj peb qhov sib txawv tseem ceeb: 1.Khoom siv: High-purity pearlitic steel nrog tsawg dua cov kev sib txuas txo qis qaug zog los ntawm kev co. 2.Profile: Lub taub hau ncaj nraim (75mm dav, 32mm qhov siab) sib tw siab -ceev log profiles, txo kev sib cuag kev ntxhov siab. 3.Ntev: Ntev ntev (25–100m) los tsim cov welded rail (CWR), txo cov pob qij txha thiab kev co. Lawv kuj raug quenching-tempering kom tawv taub hau (Ntau dua los yog sib npaug rau 300HB), tiv taus hnav los ntawm ceev ceev- lub log txav.