Lub ntsiab sib txawv ntawm txias dov coil thiab kub dov kauj yog nyob rau hauv cov txheej txheem tsim thiab cov txiaj ntsig ntawm cov hlau.
1. Cov txheej txheem tsim khoom:
- Cold Rolled Coil: Txias dov yuav dhau los ntawm cov hlau los ntawm cov chais ntawm chav tsev kub kom txo nws cov tuab. Cov txheej txheem no ua rau lub ntsej muag smoother tiav thiab nruj dua qhov ntev kam rau ua.
- Kub Rolled Chev: Kub dov muaj cua sov cov hlau saum nws qhov kub thiab txias recrystallization thiab hla nws los ntawm cov chais kom txo nws cov tuab. Cov txheej txheem no ua rau lub rougher deg tiav thiab looser dimension tolerances piv rau txias dov.
2. Khoom:
- Cold Rolled Coil: Cold rolled steel muaj lub zog ntau dua-rau-hnyav piv thiab zoo dua nto tiav piv rau kub dov hlau. Nws kuj tau txhim kho qhov tseeb qhov tseeb, ncaj, thiab flatness. Cold rolled steel feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum muaj cov duab thiab qhov ntau thiab tsawg, xws li cov khoom siv tsheb, cov khoom siv, thiab cov rooj tog hlau.
- Kub Rolled Chev: Kub dov hlau muaj qhov qis zog-rau-hnyav piv thiab rougher nto tiav piv rau txias dov hlau. Txawm li cas los xij, nws yog cov ductile ntau dua thiab tuaj yeem tsim tau yooj yim rau hauv ntau yam duab. Kub dov hlau feem ntau yog siv rau hauv cov ntawv thov uas lub zog thiab qhov yooj yim yog qhov tseem ceeb tshaj li qhov pom, xws li cov khoom siv, cov kav dej, thiab kev tsheb ciav hlau.
