Steel coils yog ib hom ntawm steel khoom siv nyob rau hauv ntau yam industries xws li kev tsim kho, tsheb, thiab khoom siv. Cov hauv qab no yog cov kauj ruam yooj yim koom nrog hauv kev ua steel coils:
Cov ntaub ntawv raw: Thawj kauj ruam yog kom tau txais cov ntaub ntawv raw los ua steel coils. Cov khoom siv raw tshaj plaws yog hlau ore, uas yog mined thiab ua kom tshem tawm impurities thiab tsim hlau pellets. Lwm cov ntaub ntawv xws li limestone, coke, thiab cov hlau siv dua tshiab kuj tseem siv tau.
Steelmaking: Cov kauj ruam tom ntej yog hloov cov ntaub ntawv raw rau hauv cov hlau. Qhov no yog ua nyob rau hauv lub cub tawg los ntawm cua sov cov hlau pellets, limestone, thiab coke kom kub heev. Cov txheej txheem no yog hu ua cov txheej txheem oxygen yooj yim lossis hluav taws xob arc rauv, nyob ntawm txoj kev siv.
Casting: Thaum cov hlau tau ua tiav lawm, nws tau muab pov rau hauv cov blocks loj lossis slabs. Cov blocks tuaj yeem ncav cuag 10 meters ntev, thiab cov slabs tuaj yeem ncav cuag 2 meters dav thiab 20 cm tuab.
Kub dov: Cov slabs los yog blocks yog ces dhau los ntawm ib tug series ntawm kub dov mills kom txo lawv cov thickness thiab dav. Cov hlau yog rhuab mus rau qhov kub thiab txias thiab dhau los ntawm cov chais, uas compress thiab ncab cov hlau, ua rau nws thinner thiab ntev dua.
Pickling thiab annealing: Cov hlau kub dov yog tom qab ntawd muab tso rau hauv cov kua qaub kom tshem tawm cov nplai lossis xeb uas tau tsim rau saum npoo. Tom qab pickling, cov hlau yog annealed, uas yuav tsum tau cua sov cov hlau mus rau ib tug kub thiab txias nws maj mam. Cov txheej txheem no pab txhim kho cov hlau lub zog thiab hloov tau yooj yim.
Txias dov: Cov hlau yog tom qab ntawd dhau los ntawm cov txheej txheem txias dov mills kom txo nws cov tuab thiab txhim kho nws qhov chaw tiav. Cov hlau yog txias thiab dhau los ntawm cov chais, uas compress thiab ncab cov hlau, ua rau nws thinner thiab ntev dua.
Coiling: Cov kauj ruam kawg yog coil cov hlau rau hauv cov yob loj lossis coils. Cov coils tuaj yeem ncav cuag 2 meters dav thiab hnyav ntau tons. Cov coils tom qab ntawd raug xa mus rau cov neeg siv khoom siv los ua ntau yam khoom.
Zuag qhia tag nrho, txheej txheem ntawm kev ua steel coils yog complex thiab muaj ob peb kauj ruam, tab sis nws ua rau ib tug ntau yam thiab check cov ntaub ntawv uas yog siv nyob rau hauv ntau industries.
