Q: Dab tsi yog qhov yield zog thiab tensile zog ntau yam ntawm DC04?
A: Tawm lub zog Rel 120-180MPa, tensile zog Rm 270-330MPa (Rel tuaj yeem nce 40MPa rau thickness ≤0.5mm).
Q: Dab tsi yog qhov elongation tom qab tawg qhov xav tau rau DC04?
A: ≥40% for A80mm; ≥36% allowed for thickness ≤0.5mm, ≥38% allowed for thickness ≤0.7mm and >0.5 hli.
Q: Dab tsi yog qhov tseem ceeb ntawm cov yas strain piv r90 thiab strain hardening index n90?
A: r90≥2.0 thiab n90≥0.20 muaj kev cuam tshuam qhov tsis kam rau thinning thiab uniform deformation thaum sib sib zog nqus nqus; cov nqi siab dua qhia tau zoo dua formability.
Q: Dab tsi yog qhov weldability ntawm DC04?
A: Tsim los nrog cov pa roj carbon tsawg thiab tsis muaj leej faj / phosphorus cov ntsiab lus, nws yog tsim rau arc vuam, roj shielded vuam, thiab laser vuam. Lub welded sib koom ua pov thawj zoo plasticity thiab tsis muaj qhov tseem ceeb embrittlement.
Q: Dab tsi yog qhov roughness thiab kam rau ua rau DC04?
A: Nto roughness ≤ 0.8μm, thickness kam rau ua kwv yees li ± 0.03mm, dav yog qib raws li seb nws puas yog trimmed los yog tsis: xws li 0 ~ +3mm txog 0 ~ +20mm.