1. Cov Txheej Txheem Txheej Txheem Txheej Txheem & Microstructural Effects
Kub-rolled SPA-H coil: Cov txheej txheem saum toj no cov hlau recrystallization kub (feem ntau 900-1200℃). Qhov kub siab tso cai rau cov nplej nplej kom recrystallize thiab loj hlob zoo ib yam, ua rau muaj qhov ntxhib, equiaxed ferrite-pearlite microstructure nrog qis sab hauv.
Txias-rolled SPA-H coil: Ua tiav ntawm chav tsev kub, hauv qab qhov kub ntawm recrystallization. Cov yas deformation thaum dov ua rau grain elongation, dislocation tsub zuj zuj, thiab ua hauj lwm hardening ntawm cov hlau, uas ho nce nws lub zog tab sis txo ductility.
2. Kev sib piv Tensile Strength (Ua raws li JIS G 3115)
| Coil Hom | Tensile Strength Range | Yield Strength Reference | Ntsiab Lus |
|---|---|---|---|
| Kub-rolled SPA-H coil | Ntau dua lossis sib npaug li 480 MPa | Ntau dua lossis sib npaug li 345 MPa | Tsis ua hauj lwm hardening; Uniform microstructure ua kom muaj zog sib npaug thiab ductility (elongation Ntau dua lossis sib npaug li 20%), haum rau cov khoom siv hauv tsev (xws li, lub tsev thav duab, ntim). |
| Txias-rolled SPA-H coil | 550-650 MPa | Ntau dua lossis sib npaug li 450 MPa | Ua hauj lwm hardening nyhuv boosts tensile zog los ntawm 15-35% piv rau kub- dov coils; elongation txo qis (feem ntau 10-15%), haum rau precision qhov chaw uas yuav tsum tau muaj zog (xws li, hniav panels, me me structural fittings). |
3. Cov ntsiab lus tseem ceeb cuam tshuam rau lub zog sib txawv
Ua hauj lwm hardening: Tus thawj tsav tsheb ntawm lub zog siab dua nyob rau hauv txias -rolled coils- yas deformation nyob rau hauv chav tsev kub qhia txog kev ntxhov siab nyob rau hauv thiab refines lub grain qauv, uas tiv thaiv ntxiv deformation nyob rau hauv tensile loads.
Post{0}} kev hloov kho: Txias-rolled SPA-H coils tuaj yeem ua kom txo tau lub zog (tso rov qab ductility) yog tias xav tau; annealed txias-rolled coils muaj tensile zog ze rau kub- dov theem (≈ 490–520 MPa).
