Q: Cov tshuaj muaj pes tsawg leeg ntawm SPCC (JIS G3141) yog dab tsi?
A: C Tsawg dua lossis sib npaug 0.12%, Mn Tsawg dua lossis sib npaug 0.50%, P Tsawg dua lossis sib npaug 0.035%, S Tsawg dua lossis sib npaug 0.035%, Si Less dua lossis sib npaug 0.05%, Fe tshuav nyiaj li cas; Cov ntsiab lus tsis tshua muaj cov pa roj carbon monoxide ua kom muaj kev tsim thiab weldability.
Q: Dab tsi yog cov khoom siv kho tshuab ntawm SPCC?
A: JIS tsis yuam kom muaj zog / tensile zog / elongation yuav tsum tau; SPCCT xav tau: tensile zog Ntau dua los yog sib npaug rau 270MPa, elongation Ntau dua los yog sib npaug rau 28%; hardness: S-lub xeev HRB 50–71, 1/2 nyuaj HRB 74–89, nyuaj HRB Ntau dua los yog sib npaug rau 85.
Q: Vim li cas lub zog tensile / yield zog qee zaum tsis lav rau SPCC?
A: JIS G3141 tsuas yog qib hardness; tensile zog yuav tsum tau tshwj xeeb cim T (SPCCT); Cov qauv kev lag luam hauv tsev feem ntau ntxiv cov kev xav tau ntawm kev siv tshuab.
Q: Does the fluctuation in the yield strength of SPCC affect processing? A: The impact is significant; fluctuations >50MPa tuaj yeem yooj yim ua rau qhov tsis sib xws ntawm kev khoov springback. Nws raug nquahu kom siv S- xeev lossis ruaj khov batch, thiab annealing kom ruaj khov microstructure yog tias tsim nyog.