1. Dab tsi yog lub luag haujlwm ntawm lubrication hauv kev tswj hwm steel ntsia hlau?
Lubrication txo kev sib txhuam ntawm lub log flange thiab tus kab ke lub ntsej muag ntsej muag, tshwj xeeb tshaj yog nyob rau hauv cov rog uas cov tub rog tom qab yog qhov siab. Qhov no minimizes hnav ob qho tib si, txuas ntxiv lawv lifespan. Lubricants-thov ntawm tsis siv neeg cov cav tshuab lossis tsheb ciav hlau-mounted-tsim cov txheej tiv thaiv uas tseem tiv thaiv corrosion. Txawm li cas los xij, tshaj lubrication tuaj yeem nyiam cov khib nyiab, yog li daim ntawv thov npliag yog qhov tseem ceeb. Hauv cov ntu ncaj, lubrication yog tsawg dua qhov tseem ceeb, tab sis kev nkhaus feem ntau yuav tsum tau kho kom tsis tu ncua kev siv tsheb thiab log kev puas tsuaj tas li.
2. Yuav ua li cas Steel rail txawv txawv hauv tsim qauv rau kev tsheb ciav hlau tsheb ciav hlau vs. Hnyav rail Systems?
Lub teeb raj hluav taws xob (piv txwv li, trams) siv cov kab sib nciab sib dua (30-50 kg / m) thaum lawv nqa me me, cov tsheb qeeb qeeb. Lawv cov kev sib tw feem ntau yog tsim nyob rau hauv txoj kev pavement los sib xyaw nrog cov chaw hauv nroog, nrog flanges kom cov log ua ke. Hnyav Rail Systems (piv txwv, kev tsheb ciav hlau, subways) Siv cov hlua taws (50-75 kg / m) los lis cov khoom loj thiab nrawm dua. Cov kev sib tw no tau teeb tsa ntawm cov lem kom nce lossis hauv cov tunnels, nrog sturdier pw thiab ballast. Cov kev tsheb ciav hlau teeb tseem ua rau pom kev sib tw ua ntej, thaum hnyav Rail tsom rau cov kev ntxhov siab uas muaj kev ntxhov siab.
3. Dab tsi yog cov txiaj ntsig ntawm kev tsheb nqaj hlau tsis tau nyob hauv kev ruaj khov?
Kev tsheb ciav hlau yog hais txog qhov caws pliav me ntsis ntawm cov nqaj hlau mus rau hauv nruab nrab ntawm txoj kev (feem ntau 1:20 lossis 1:40). Cov qauv no pab tawm tsam cov tub rog hauv nkhaus, ua kom lub tsheb ciav hlau poob rau hauv nruab nrab. Los ntawm tilting txoj kev tsheb nqaj hlau, nws ua kom lub log hu rau qhov zoo tshaj plaws, txo cov kev ntxhov siab yav tom ntej thiab tiv thaiv kev ua haujlwm rau kev sib cuam tshuam. Nyob rau hauv cov ntu ncaj, cant yog tsawg heev lossis tsis muaj, raws li cov rog tom qab yog tsawg. Tsim nyog Cant sib ncoo yog qhov tseem ceeb-dhau los yog tsawg heev tuaj yeem ua rau hnav tsis sib luag lossis tsis muaj peev xwm.
4. Yuav kuaj tus ntsia hlau li cas rau kev qaug zog tsis kam?
Qaug zog tsis kam sim simulates kev ntxhov siab ntau dua ntawm kev qhia lo ntawm kev ntsia. Nyob rau hauv cov lab, cov qauv yog khoov cyclic yog khoov lossis muab kev sib tiv tauj kev sib tiv tauj, qhov twg lub log-li lub log tsheb yob hla ntau zaus. Cov kws ua choj ntsuas tau muaj pes tsawg lub cycles txoj kev tsheb ciav hlau tuaj yeem tiv taus ua ntej daim ntawv tawg. Kev ntsuam xyuas kev ntsuas siv cov kab txuas tawm hauv cov kab uas tsis khoom kom khaws cov ntaub ntawv tiag tiag hauv kev ntxhov siab thiab hnav. Cov ntaub ntawv no pab tshuab cov qauv kev tsheb ciav hlau, xws li ntxiv Vanadium rau cov alloys kom txhim kho kev ua phem hauv siab.
5. Dab tsi yog qhov tseem ceeb ntawm kev tsheb ciav hlau hardness hauv cov haujlwm hnyav?
Hnyav-Heg chav haujlwm (piv txwv li, cov tsheb ciav hlau mining) yuav tsum tau ntsia nrog kev ua kom siab thiab hnav los ntawm cov qag hnyav (feem ntau {}} tons ib tug qag). Hardness yog ntsuas siv lub brinell nplai, nrog hnyav-tsheb ciav hlau feem ntau xws li 300-400 HB. Ib lub taub hau sib tw nyuaj (ua tiav ntawm kev kho cua sov) tiv thaiv lub siab ntawm lub log hnyav, tiv thaiv kev tiv thaiv hnyav, tiv thaiv kev tiv thaiv hnyav. Txawm li cas los xij, ntau heev hardness tuaj yeem ua cov ntse brittle, yog li cov nyiaj tshuav yog tsoo nrog kev tawm tsam tab sis nyuaj txaus kom nqus cov kev cuam tshuam.