1. Dab tsi yog qhov cuam tshuam ntawm kev tsheb ciav hlau ntev ntawm kev thauj mus los thiab kev teeb tsa logistics?
25m rails xav tau cov tsheb ciav hlau tshwj xeeb rau kev thauj mus los, txwv tsis pub nkag mus rau thaj chaw deb nrog cov choj nqaim lossis cov nkhaus nruj . 12m cov tsheb ciav hlau haum rau cov qauv flatcars, txo kev thauj mus los hauv cheeb tsam tsim. Cov ntsia hlau ntev dua txo lub sijhawm teeb tsa (tsawg dua cov pob qij txha) tab sis ua rau kev tuav tsis yooj yim. Hauv thaj chaw roob, 12m rails yog tus qauv rau kev ua haujlwm, thaum lub tiaj tiaj siv 25m + rails rau kev ua haujlwm. Logistics kuj cuam tshuam rau vuam: ntev rails xav tau ntawm -site flash-tooj vuam, xav tau cov cuab yeej nqa nqa tsis tas muaj nyob hauv thaj chaw deb.
2. Cov qauv kev tsheb ciav hlau hauv Algeria (NA) ua li cas hais txog cov suab puam thiab ntug hiav txwv?
Algerian Standards (NA) suav nrog 50kg / m rails rau cov kab suab puam (xws li, Algiers-Oran) nrog cov cua sov- tiv taus alloys kom tiv taus 50℃+ kub. Ntug hiav txwv rails (Annaba) siv galvanized steel los tiv thaiv ntsev tsuag. NA rails muaj cov qauv tsim yooj yim rau kev saib xyuas yooj yim hauv thaj chaw deb thiab lub taub hau ntxiv rau cov tsheb ciav hlau hauv Sahara. Lawv saib xyuas qhov tseem ceeb ntawm weldability rau CWR, txo cov dej siv rau ballast hauv cov cheeb tsam arid. NA kuj tseem tso cai rau UV tiv thaiv rau cov tsheb ciav hlau hauv lub hnub- tawm suab puam lem.
3. Dab tsi yog cov khoom yuav tsum tau ua rau cov tsheb ciav hlau siv hauv nroog tsheb thauj mus los uas nquag nres-thiab- mus ua haujlwm?
Kev tsheb ciav hlau hauv nroog xav tau kev qaug zog siab (Ntau dua lossis sib npaug ntawm 800MPa) txhawm rau ua kom rov ua kom nrawm / nrawm dua. Lawv siv tsawg- carbon steel nrog manganese (1.2-1.5%) rau toughness thiab cua sov-kho taub hau (300-}320 HB) los tiv thaiv corrugation. Cov tsheb ciav hlau hauv nroog feem ntau suav nrog tooj liab (0.2%) rau kev tiv thaiv corrosion (de-cov ntsev ntsev) thiab muaj nplaim taws txiav kom txo cov suab nrov. Lawv qhov profile nta lub taub hau dav dua los faib cov zog nres, txo qis hnav los ntawm kev sib cuag lub log.
4. Cov qauv kev tsheb ciav hlau hauv Finland (SFS) yuav ua li cas hais txog Arctic tej yam kev mob thiab kev ua liaj ua teb?
SFS cov qauv siv 50kg / m thiab 60kg / m rails nrog nickel -chromium alloys rau Arctic kab (-40℃kam rau ua). Forestry rails (hauling ntoo) muaj lub taub hau tuab (30mm +) los tiv thaiv kev cuam tshuam los ntawm kev thauj khoom tsis sib xws thiab txheej txheej corrosion-resistant rau thaj tsam swampy. Finnish rails feature txhim kho weldability rau CWR nyob rau hauv tej thaj chaw deb Lapland thiab ib tug du nto kom txo tau dej khov buildup. SFS tswj xyuas qhov cuam tshuam nruj, ua kom cov tsheb ciav hlau tiv taus kev thauj khoom tam sim ntawd los ntawm cov tsheb ciav hlau ntoo.
5. Dab tsi yog lub luag haujlwm ntawm kev sib tsoo cov qauv hauv kev txo suab nrov thiab kev co?
Cov qauv sib tsoo (xws li, cylindrical, tapered) zoo li lub taub hau tsheb ciav hlau kom txo qis suab nrov: 300 hli kab hluav taws xob cylindrical grind txo siab -ntau zaus suab nrov los ntawm 5-10 dB. Tapered grinds ntawm nkhaus txo flange hu suab nrov. Cov tsheb ciav hlau hauv nroog siv cov qauv nrov nrov-txo qis (piv txwv li, 400mm radius) ntawm tus nqi ntawm kev hnav me ntsis. Freight rails siv lub flatter grind kom faib load, txais lub suab nrov dua rau durability. Cov qauv sib tsoo yog tsim los rau hom kev tsheb ciav hlau, ntsuas qhov kev ua haujlwm acoustic thiab lifespan.