1. Dab tsi yog cov hlua hlau feem ntau siv rau?
Cov hlua hlau hlau yog cov kev sib txuas tseem ceeb hauv kev tsheb ciav hlau, pab ua cov qauv txheej txheem uas coj qhia thiab kev txhawb nqa tsheb ciav hlau. Lawv faib qhov nyhav ntawm locomotives, wagons, thiab cargo tusyees mus rau hauv lub tsheb ciav hlau, kom muaj zog ruaj khov. Tshaj li cov kev sib tw ntawm kev tsheb kauj vab, lawv kuj tseem siv hauv Urban cov teeb meem zoo li subways thiab cov ciav hlau, nrog rau hauv kev muaj cov mines thiab chaw nres nkoj rau cov chaw thauj mus los. Lawv lub zog thiab lub zog ua rau lawv qhov tseem ceeb rau kev tswj kev thauj mus los nyab xeeb thiab txuag nyiaj thoob ntiaj teb thoob ntiaj teb.
2. Cov ntaub ntawv twg yog cov hlua hlau ua los ntawm?
Hlau Ntsia Hlauyog feem ntau tsim los ntawm cov hlau roj carbon hlau lossis cov hlau sib tsoo. High-steel hlau, nrog cov ntsiab lus carbon, nrog 0.8% mus rau 0.8%, muab nws cov kab tiv thaiv zoo tshaj plaws, cov kab kev tsheb ciav hlau feem ntau. Alloy Stairs, uas yuav suav nrog cov ntsiab zoo li manganese, lossis Vanadium, yog tsim rau cov kab kev tsheb loj lossis tsheb thauj khoom hnyav. Cov alloy ntxiv ntxiv rau txhim kho lub zog, kev ua kom tawv, thiab kev tawm tsam hnyav, ua kom muaj kev pabcuam ntev dua nyob rau hauv cov xwm txheej huab.
3. Yuav ua li cas yog cov rail stairs?
Cov txheej txheem ntau lawm ntawm cov hlua hlau koom nrog ntau kauj ruam tseem ceeb. Ua ntej, cov ntaub ntawv raw zoo li hlau ore, thee, thiab limestone yog smelted nyob rau hauv lub moj tej tawg sov kom ua cov hlau moltencen. Cov hlau no yog tom qab ua kom zoo nkauj hauv cov pa roj oxygen lossis hluav taws xob arc kom tshem tawm impurities thiab kho cov tshuaj lom neeg. Cov hlau Molten tau raug pov rau hauv cov paj tawg lossis cov nqi ua haujlwm, uas yog tom qab ntawd rhuab thiab dov hauv ib qho kev hla dhau los ua cov kab hlau xav tau. Tom qab dov, cov kev sib tw yauv mus rau kev kho cua sov (xws li quenching thiab tempering) los txhim kho lawv cov khoom siv neeg. Thaum kawg, lawv tau soj ntsuam rau qhov tsis xws luag, txiav kom ntev, thiab npaj rau kev teeb tsa.
4. Dab tsi yog qhov ntau thiab tsawg ntawm cov hlua hlau?
Cov hlua hlau steel tuaj nyob rau hauv ntau yam qauv, nrog qhov ntev sib txawv los ntawm thaj av thiab daim ntawv thov. Hauv ntau lub tebchaws, tusQhov hnyav rau ib lub ntsuasyog qhov tseem ceeb tshwj xeeb. Qhov ntau thiab tsawg thiab ntau qhov ntau muaj 30 kg / m, 43 kg / m, 50 kg / m, 50 kg / m, mg / m, thiab 75 kg / m. Rau kev kub ceev-nrawm, hluav taws xob hnyav (piv txwv li, 60 kg / m lossis 75 kg / m) feem ntau siv los tiv thaiv ntau dua cov khoom thauj thiab nrawm dua. Cov duab hla kev hla kuj tseem ua raws cov qauv, nrog lub taub hau, lub vev xaib, lub vev xaib, thiab lub hauv paus tsim los ua kom zoo dua lub zog thiab ruaj khov. Cov Qauv Thoob Ntiaj Teb, xws li cov txheej txheem ntawd los ntawm International Union ntawm Railways (UIC), xyuas kom meej nyob hauv kev sib tw ntev rau kev sib txuam.
5. Yuav ua li cas cov rails stairs tawm thiab kua muag?
Cov hlua hlau steel yog tsim los tiv thaiv kev hnav los ntawm kev sib xyaw ntawm cov khoom xaiv thiab cov txheej txheem kev tsim khoom. High-carbon thiab alloy class muab xam rau lub hardness, txo kev puas tsuaj los ntawm tsheb ciav hlau log. Kev kho cua sov, xws li quenching lub taub hau tsheb nqaj hlau, tsim ib txheej npoo npoo tawv thaum tswj hwm kev coj tsis taus nrog kev cuam tshuam kev pheej hmoo. Txuas ntxiv, kev txij nkawm tsis tu ncua, suav nrog kev sib tsoo kom du tawm saum npoo tsis xwm yeem thiab tshem tawm cov kab nrib pleb, yuav pab tiv thaiv kom tsis txhob muaj kev hnav khaub ncaws. Lubrication ntawm lub log thiab rail hauv curves tseem txo kev sib txhuam, txo qis ntawm ob qho tib si. Sij hawm dhau los, tshuaj xyuas lub tshuab khiav kev qauv hnav, tso cai rau kom raws sijhawm hloov cov khoom ntawm ntau.