Cov txheej txheem ntau lawm
Cov txheej txheem steel ntau lawm feem ntau suav nrog plaub theem txheej txheem tseem ceeb: hlau ua, steelmaking, nruam casting thiab dov. Cov txheej txheem no ua ke tsim tag nrho cov txheej txheem ntawm kev tsim steel, thiab txhua theem muaj nws cov dej num tshwj xeeb thiab cov hom phiaj. cov
Thawj theem yog tsuas yog hloov hlau ore mus rau npua hlau. Tom qab kev kho mob ua ntej xws li crushing, tshuaj ntsuam thiab ntxuav, cov hlau ore raug xa mus rau qhov cub tawg ua ke nrog coke thiab limestone rau smelting. Kev txo cov tshuaj tiv thaiv nyob rau hauv lub qhov cub tawg yuav txo cov hlau hauv cov hlau ore los tsim cov hlau npua.
Nyob rau hauv lub steelmaking theem, cov npua hlau tau ua tiav ntxiv kom tshem tawm cov impurities, xws li cov pa roj carbon ntau thiab lwm yam tsis xav tau, thiab cov ntsiab lus alloying ntxiv los kho cov tshuaj muaj pes tsawg leeg thiab lub cev ntawm cov hlau. Steelmaking tuaj yeem ua tau nyob rau hauv ntau txoj kev xws li converters thiab hluav taws xob rauv taws. Lub hom phiaj tseem ceeb yog tsim cov hlau molten uas ua tau raws li qhov yuav tsum tau ua.
Nruam casting yog tus txheej txheem ntawm kev nruam nruam cov hlau molten tau nyob rau hauv lub steelmaking theem rau hauv steel billets. Lub tshuab nruam nruam tswj cov dej ntws thiab cua txias ntawm cov hlau molten los cam khwb cia kub molten steel rau hauv cov pob zeb ntawm ib qho duab. Qhov no yog ib qho ntawm cov txheej txheem tseem ceeb hauv kev tsim cov hlau niaj hnub no, uas tuaj yeem txhim kho kev ua haujlwm ntau lawm thiab txo kev siv hluav taws xob.
Rolling yog cov txheej txheem ntawm kev ua tiav cov billets tau los ntawm kev nruam nruam rau hauv cov hlau ntawm ntau yam duab thiab specifications. Rolling tuaj yeem nqa tau los ntawm kub dov lossis txias dov. Kub dov yog nqa tawm ntawm qhov kub thiab txias, thaum txias dov yog nqa tawm ntawm chav tsev kub lossis kub qis. Thaum lub sij hawm dov txheej txheem, cov hlau yog squeezed thiab stretched los ntawm ib tug series ntawm rollers kom ua tau raws li qhov xav tau qhov loj thiab cov duab.
Cov txheej txheem plaub theem no yog sib cuam tshuam los tsim cov txheej txheem ua tiav steel. Cov qib kev kawm thiab kev ua haujlwm zoo ntawm txhua theem yuav cuam tshuam ncaj qha rau qhov zoo thiab cov khoom tsim tawm ntawm cov khoom kawg.
