Zoo Kub Muag Steel Coils Tuam Tshoj Hoobkas Kub Rolled Carbon Steel Chev

Cov txheej txheem ntau lawm ntawm kub-kuav los tiagsteel kaujyog qhov txuas tseem ceeb hauv kev tsim steel hlau. Nws tsuas yog tsim cov hlau billet rau hauv lub phaj uas xav tau los ntawm kev kub kub dov. Cov hauv qab no yog nws cov kauj ruam tseem ceeb:

Kev npaj raw khoom
Cov khoom siv raw yog ib qho kev nruam nruam slab lossis billet, feem ntau 150-300 mm tuab.
Lub slab nto undergoes tu (xws li, nplaim scarfing los yog mechanical sib tsoo) kom tshem tawm nplai thiab tsis xws luag thiab xyuas kom meej dov zoo.
Cua sov
Cov slab tau muab tso rau hauv lub qhov cub taug kev thiab ua kom sov rau 1100-1300 ° C kom ua tiav austenitization thiab txhim kho ductility.
Lub sij hawm cua sov thiab qhov kub tsis sib xws yuav tsum tau tswj kom tsis txhob overheating lossis underheating.
Roughing
Lub slab yog dov nyob rau hauv ib tug reversing roughing zeb (xws li, ib tug ob-los yog plaub-siab zeb) rau hauv nruab nrab tuav nrog ib tug tuab ntawm 30-50 hli.
Tom qab txhua qhov dov dhau lawm, cov dej kub siab descaling tuaj yeem ua kom tshem tawm cov txheej oxide saum npoo.
Ua tiav
Cov kab nruab nrab nkag mus rau hauv lub tshuab tiav (feem ntau muaj rau los yog xya plaub- lossis rau-siab mills), qhov uas lawv maj mam thinned mus rau lub hom phiaj thickness (xws li, 1.2-25 hli) los ntawm kev nruam dov. Tsis siv neeg ntsuas ntsuas (AGC) thiab kev tswj lub tiaj tiaj yog siv los xyuas kom meej qhov tseeb thiab qhov ncaj.
Thaum lub sij hawm dov txheej txheem, cov yob yuav tsum tau txias thiab lubrication los tiv thaiv thermal deformation thiab hnav.
Txias
Laminar cua txias tshuab ceev ceev kom txias lub strip los ntawm qhov kawg dov kub (kwv yees li 800 ° C) mus rau chav tsev kub los ntawm kev tswj cov dej thiab cov cua txias npaum li cas (piv txwv li, 30-50 ° C / thib ob).
Cov txheej txheem cua txias ncaj qha cuam tshuam rau coil lub microstructure (piv txwv li, ferrite rau pearlite piv) thiab txhua yam khoom.
Coiling
Lub sawb yog mob rau hauv coils siv pinch yob thiab ib tug coiler. Kev nruj yog tswj los ntawm 100-500 N / mm² kom ntseeg tau tias lub voj voog nruj thiab tsis muaj cov coils xoob.
Coiling kub yog feem ntau tswj ntawm 550-700 ° C kom zoo zog.
Tom qab ua tiav
Kev kho deg: Kev kho deg muaj xws li pickling kom tshem tawm cov nplai lossis txheej txheej xws li galvanizing lossis aluminizing.
Annealing: Txhim kho cov khoom ductility (xws li, recrystallization annealing ua ntej txias dov). Flattening: Rolling ntawm qis siab tshem tawm yielding hauv cov khoom tiaj tus thiab txhim kho qhov chaw tiav.
Kev soj ntsuam zoo thiab ntim khoom: Cov khoom raug tshuaj xyuas qhov ntev, cov khoom siv kho tshuab, thiab qhov zoo ntawm qhov chaw ua ntej yuav coiled, bundled, thiab sau npe raws li cov neeg siv khoom tshwj xeeb.