1. Galvanized steel ntawv SECC
Lub substrate ntawm SECC yog qhov txias txias- dov steel kauj, uas dhau los ua cov khoom siv hluav taws xob-galvanized tom qab degreasing, pickling, electroplating thiab ntau yam tom qab- cov txheej txheem kho nyob rau hauv ib tug nruam electro{{3 }}galvanizing ntau lawm kab. SECC tsis tsuas yog muaj cov khoom siv kho tshuab thiab cov txheej txheem zoo sib xws ntawm cov khaub thuas zoo tib yam -rolled steel nplooj ntawv, tab sis kuj muaj superior corrosion kuj thiab zoo nkauj tsos. Nws muaj kev sib tw zoo thiab kev hloov pauv hauv kev ua lag luam ntawm cov khoom siv hluav taws xob, cov khoom siv hauv tsev thiab cov rooj tog zaum. Piv txwv li, cov ntaub ntawv siv computer feem ntau yog SECC.
2. Ordinary txias dov ntawv SPCC
SPCC yog hais txog qhov txuas txuas ntxiv ntawm cov hlau ingots rau hauv cov hlau coils lossis cov nplooj ntawv ntawm qhov xav tau tuab los ntawm lub tshuab txias txias. SPCC nto tsis muaj kev tiv thaiv, nws yog ib qho yooj yim rau oxidized thaum raug huab cua, tshwj xeeb tshaj yog nyob rau hauv ib qho chaw ntub, oxidation ceev ceev, tsaus liab xeb tshwm, thiab nto yuav tsum tau pleev xim rau, electroplated los yog lwm yam kev tiv thaiv thaum nyob rau hauv siv.
⒊ Hot dip galvanized steel sheet SGCC
Hot-dip galvanized steel coil refers to the semi-finished product after hot-rolled pickling or cold-rolling, after cleaning, annealing, and immersing in a molten zinc bath with a temperature of about 460 degree C, so that the steel sheet is plated with a zinc layer, and then quenched and tempered. Flattened and chemically treated. SGCC material is harder than SECC material, has poor ductility (avoid deep drawing design), thicker zinc layer and poor weldability.
