Yuav ua li cas paub qhov txawv ntawm kub - rolled steel thiab txias- rolled steel?

Kub - rolled steel thiab txias - rolled steel tuaj yeem txawv ntawm cov yam ntxwv tseem ceeb:
1. Kev Ua Neej Sib Txawv
Mob Kub
Hot rolling is carried out at temperatures above 1000℃(above the recrystallization temperature), while cold rolling is done at room temperature (usually below 200℃).
Txheej Txheem Flow
Kub Rolling yog ib qho - kev ua tiav cov txheej txheem, thaum txias ua tiav siv cov phaj kub uas siv cov hlau ua cov ntaub ntawv raw.
2. Cov tsos kev sib piv
Qhov xwm txheej nto
Kub - rolled steel: ntxhib nto nrog oxide nplai (ra {μide lossis xim av xim ntau dua los yog sib npaug rau 2 hli
Cold - rolled steel: du tsis muaj oxide nplai (ra} {} {}}}}}} ntug txiav qhov tseeb ± 0.05mm
Thickness Tshwj Xeeb
Kub - rolled steel: tuab ntau dua los yog sib npaug rau 6 hli (feem ntau6 - 200 mm)
Txias - rolled steel: thickness tsawg dua los yog sib npaug rau 8 hli (ib txwm {2} {mm)
3. Kev ua haujlwm sib txawv
Cov Khoom Siv Neeg Kho Tshuab
Lub zog: txias - rolled steel muaj ib tug cog lus muaj zog ntawm {% siab dua li tias ntawm kub}} {5 5}} mpa mpa mpa)
Yas Siv: Lub elongation ntawm kub - rolled steel {{1} {rolled steel los ntawm ntau dua 30%
Kev tsim
Txias - rolled steel muaj grain loj ntawm {} {{2} {rolled steel muaj {}} μm
Kev Ntsuas Hardness
Lub hardness ntawm txias - rolled steel yog siab dua li ntawm cov hlau los ntawm 20% {%, thiab nws tuaj yeem raug txheeb xyuas siv sai sai teser teser
Dabtsi yog khoov xeem
Kub -} rolled steel muaj qhov ua tau zoo dua thiab tsis tshua ua kom tawg thaum khoov; txias -} rolled steel yog nquag mus rau brittle fracture vim ua haujlwm hnyav thaum ua haujlwm
4. Cov qhab nia cim tseg
Kev Ua Traces
Txias - rolled steel cim lossis annealing steel lossis annealing cov cim ntawm saum npoo, thaum kub- rolled steel feem ntau tau ntev tsa cov kab txaij
Oxide Pawg Nrhiav tau
Cov oxide hlau nplai rau saum npoo kub {{0} {rolled steel yuav tsum tau muab tshem tawm cov hlau tsis muaj cov txheej oxide thiab tuaj yeem siv ncaj qha
5. Kev Tshawb Fawb Kev Ntsuas
Metallographic tsom xam
Cov noob nplej loj ntawm kub - rolled steel yog}- μm thiab muaj lub siab tsis kam lees
Ntawv Pov Thawj Ua Tau Zoo
Qhov feem ntau txhim khu kev qha yog los xyuas cov txheej txheem annotations nyob rau hauv cov khoom lag luam zoo ntawm cov khoom lag luam tawm ntawm lub Hoobkas tawm