Qhib ntawm Hongkis seem ntawm Guangzhou- Shenzhen- Hongkong high-speed railway cim Hong koob nkag mus rau hauv lub teb chaws high-speed rail network, ushering nyob rau hauv ib tug tshiab era ntawm high-speed rail.
Raws li qhov hais tias mus: kom tau nplua nuj, tsim cov kev ua ntej. Kev tsim kho ntawm cov tsheb khiav lag luam yog qhov tseem ceeb rau txoj kev loj hlob ntawm ib lub nroog. Nrog txoj kev loj hlob sai ntawm lub teb chaws kev lag luam hauv xyoo tas los, kev tsim kho ntawm kev khiav tsheb npav muaj txav muaj zog ceev cov txheej txheem. Nrog rau kev txhim kho kev lag luam ntawm kev ua voj voog nyob hauv Suav teb, cov nroog nyob hauv high-speed railway kuj tau txais txoj kev loj hlob zoo. Ntau lub nroog loj, nruab nrab, thiab me me yog txuas nrog high-speed rail, thiab kev khiav dej nruab nrab ntawm cov nroog thiab thaj chaw zoo dua thiab ua haujlwm. Lub voj voog loj-ceev yog hloov cov qauv ntawm Suav lub zos ntawm kev ceev ceev, thiab cov nroog muaj nce nrog kev pab cuam ntawm kev khiav tsheb ceev.
Txoj kev loj hlob ntawm txoj kev tsheb nqaj hlau ntawm kev tsheb nqaj hlau tau ncaj qha rau kev ua lag luam ntawm cov khoom siv. Muaj txhuas profile yog ib qho tseem ceeb ntawm kev lag luam kev lag luam, thiab txhuas profile yog ib qho khoom siv zoo heev rau kev paub txog cov qauv tsheb khiav ceev. Ua ntej xyoo 1950, qee cov tebchaws tau tsim hauv ntiaj teb no pib siv txhuas cov khoom siv los tsim cov tsheb nqaj hlau, xws li Tebchaws Meskas, Canada, Nyiv, Russia, Lub Tebchaws thiab Fabkis, thiab lwm lub tebchaws. Tam sim no, aluminium alloy cov ntaub ntawv tau lug siv nyob rau hauv domestic high-speed tsheb ciav hlau.
Aluminium profiles rau kev tsheb ciav hlau
Qhov ceev ntawm aluminium alloy yog li ib feem peb ntawm cov hlau, thiab cov hlau alloy ua los ntawm kev ntxiv cov ntsiab lus muaj zog dua li hlau hlau. Yog li ntawd, lub zog thiab tsis yeem raws li kev ruaj ntseg ntawm txoj kev nyab xeeb ntawm kev tsheb ciav hlau, kev siv cov aluminium alloy yuav ua tau kom txo nws tus kheej qhov ceeb thawj ntawm cov tsheb ciav hlau. Qhov nplaum ntawm aluminium anodized rau ib tug compact thiab ruaj oxidation zaj duab xis, ces tus corrosion kuj zoo. Aluminium tau zoo foundry, vim nws tsawg melting kub, zoo fluidity, yooj yim los ua ntau yam ntawm txoj kev zoo qhov chaw. Lub aluminium alloy tseem tswj lub teeb lub cev nyhav, tab sis cov neeg kho tshuab zoo obviously enhanced.
Txawm nws yog lub tsheb ciav hlau los yog kev tsheb ciav hlau, qhov khoom tseem ceeb yog txhuas yam hlau. Nws to taub hais tias lub tuam txhab high-speed lub tsheb nrog tus ceev tshaj 300 km / h, yuav tsum siv cov txhuas aluminium alloy cov ntaub ntawv. Tshaj li 350 km / h, lub tsheb ciav hlau txuas ntxiv rau lub chassis tag nrho kev siv cov txhuas profiles. Tam sim no, txoj kev sib nqus lev sib nqus thiab tsheb ciav hlau khiav ceev uas muaj siab tshaj 200 km / h tag nrho tau txhuas, thiab txhuas tus nqi ntawm lwm qhov chaw tsheb ciav hlau muaj tshaj 40 feem pua. Ntawm cov txhuas siv, extrusion aluminium yog cov khoom tseem ceeb, accounting rau li 76% ntawm cov txhuas tag, thiab txog 24% ntawm lub Rooj Tswjhwm Saib, ntawv ci, yeeb nkab thiab kab xev. Ntxiv rau qhov kev tsim ntawm txoj kev tsheb ciav hlau yuav tsum tau siv cov ntaub ntawv loj loj, los kuj muaj ib daim ntawv, ntawv ci, kav dej, kev zam txim, thiab qhov rooj, thiab lub qhov rai, cov khoom sib txuas, cov chaw cia khoom, tsheb thiab lwm yam me me.
Feem ntau hais lus, cov txhuas txhuas siv los ntawm kev sib tsoo hauv tsheb loj thauj neeg tuaj txog li 10 tons, thiab qhov hnyav ntawm tag nrho lub cev yog 30% mus rau 50% tsawg dua li ntawm tag nrho cov hlau. Nws tau pom tias 10% txo ntawm lub tsheb qhov hnyav tau li 8% ntawm kev txo roj tsheb. Hauv seem ua dua, cov khoom siv txhuas tuaj yeem ua kom 100% rov qab, txhuam ub poom qaum xa khoom tuaj yeem txo 95% ntawm kev siv zog.
Txoj Haujlwm Ncaj Ncees
Raws li Tuam Tshoj tus 13th tsib lub xyoos txoj kev npaj. Thaum xyoo 2020, Tuam Tshoj yuav muaj 140,000 kis mus rau 150,000 km ntawm txoj kev tsheb ciav hlau, nrog rau 50,000 km rau 60,000 km ntawm kev npav khiav ceev kom tiav. Nws kwv yees tias tag nrho ntev ntawm high-speed railways tiav thaum lub sij hawm 13th tsib xyoos xyoo yuav ncav cuag 33,000 km, uas yog 1,0625 npaug tshaj 16,000 km ntawm qhov kev npaj ntawm 12-tsib xyoo thiab lub moj khaum ntawm cov kev lag luam hauv high-speed railway tau pib ua tiav. Nyob rau tib lub sijhawm, Lub teb chaws kuj tseem txo qis tus neeg tsawg tsawg tus neeg thov kev pabcuam hauv lub nroog loj ntawm 3 lab mus rau 1.5 lab, uas yuav ua rau ntau lub nroog uas tsim tsa txoj kev mus los ntawm 30 mus rau 90. Raws li cov kws qhia, txhua xyoo kev loj hlob ntawm txhuas siv hauv cov tsheb ciav hlau kev tsim khoom yuav tsum yog siab dua 22% txij tam sim no mus txog 2030.
Kev tsheb ciav hlau khiav ceev tau dhau los ua ib qho tseem ceeb ntawm txoj kev thauj mus los rau Tib Neeg Cov Hnub Taug kev.
Kev lag luam high-speed rail yog nruab nrab ntawm ib lub teb chaws kev lag luam siab, thiab tsheb thauj mus los txhim kho cov khoom muaj nqis rau txoj kev loj hlob ntawm Tuam Tshoj txoj kev tsheb khiav ceev. Cov zis ntawm kev khiav tsheb npav yog txhais tau hais tias cov zis ntawm cov saw hlau, xws li kev tsim kho vaj tse, kev tsim khoom, kev dov khoom, kev tswj xyuas txij nkawm thiab lwm cov lag luam, txhua yam yuav zoo heev.