Cov txheej txheem ntau lawm ntawm kub dov strip steel mas tswj cov txheej txheem ntawm billet npaj, cua sov, descaling, ntxhib dov, taub hau txiav, xov, txias, coiling thiab xov.
Kub-Rolled Strip Bills feem ntau yuav tsum tau txuas ntxiv cov pob zeb, tshuaj lom neeg yuav tsum tau kuaj xyuas cov nqi kho mob, rau cov khoom siv kub yuav tsum tau muab cov nyiaj kub uas tsis muaj txiaj ntsig, piv txwv li Cov saum npoo yuav tsum tsis txhob pom qhov tsis xws luag rau lub qhov muag liab qab, yuav tsum tsis muaj qhov tob sab hauv, loosening thiab cais cov lus, thiab lwm yam.
Cov cua sov feem ntau tswj cov cua sov, lub sij hawm, ceev thiab kub tswj (nrog rau preheating seem, cua sov seem thiab txawm cua sov seem kub).Tiv thaiv overheating, over-burning, oxidation, decarburisation los yog sticking ntawm cov hlau.Nws yog qhov zoo dua los siv lub tshuab cua sov ua kom sov, uas yog qhov zoo rau qhov zoo.
Cov cuab yeej siv rau descaling yog cov yob descaling tshuab, ntsug yob descaling tshuab thiab cov thawv ntim dej descaling siab.Nws yog dav siv los tshem tawm cov hlau oxide ntawm daim tawv nqaij los ntawm dov cov npoo nrog ntsug yob thiab tom qab ntawd siv cov dej kub siab (10-15 MPa).
Lub luag hauj lwm ntawm ntxhib dov yog compress thiab ncua lub billet los muab cov yob tiav nrog ib tug billet ntawm qhov yuav tsum tau muaj qhov loj me thiab phaj puab.Cov txheej txheem rolling ntxhib yuav tsum tau tswj los ntawm kev teeb tsa tus nqi thiab kev nrawm ntawm txhua qhov dhau los ntawm kev nias, ua kom cov zis kub ntawm qhov ntxhib dov ntau npaum li qhov ua tau, thiab ua kom lub thickness thiab dav ntawm qhov ntxhib dov billet.Txhawm rau kom txo qhov kev ncua deb ntawm qhov sawv ntsug, ob qhov kawg ntawm lub pob zeb roughing teeb yog teem rau hauv ib qho txuas ntxiv.
Txiav lub taub hau yog tshem tawm lub taub hau thiab tus Tsov tus tw ntawm cov ntxhib dov billet, kom yooj yim rau cov xov zeb tom thiab winding tshuab dov.
Kev ua tiav dov yog raws li cov kev cai dov rau txhua lub khib nyiab raws li qhov siab, dov kub, ceev rau dov.Nws yog feem ntau tswj los ntawm qhov sib npaug thib ob ntws los yog hom nro tas li.Hydraulic lossis hluav taws xob AGC yog siv los tswj cov tuab, thiab kev tswj qhov kub thiab txias ntawm cov txheej txheem dov suav nrog qhov kawg dov kub thiab lub taub hau thiab tus Tsov tus tw kub sib txawv tswj.Yuav kom tswj tau cov ntawv zoo, yob profiles thiab pre-bending yob li siv los xyuas kom meej transverse thickness sib txawv ntawm cov sawb.
Cov hlau sawb kub yog 900 txog 950 ° C tom qab ua tiav dov thiab yuav tsum tau txias rau 600 txog 650 ° C nyob rau ob peb feeb ua ntej nws tuaj yeem dov.Laminar txias thiab dej curtain txias feem ntau yog siv.Laminar flow cooling yog siv cov dej tsis tshua muaj siab thiab cov dej txias ntau, raws li cov strip thickness thiab qhov kawg dov kub tau kho cov dej.Cov ntaub thaiv dej txias ntawm cov sawb yog qhov sib xws, nrawm thiab muaj peev xwm ua kom txias siab.
Txhawm rau kom ntseeg tau tias lub koom haum thiab cov khoom ntawm cov ntawv kub dov tau ua tau raws li qhov yuav tsum tau ua, cov hlau dov yuav tsum tau dov ntawm qhov kub thiab txias dua, qhov kub dov feem ntau yog nyob rau hauv 500 ~ 650 ℃.Coiling kub dhau dhau lawm, coina nplej.
Post lub sij hawm: Aug-11-2022