Q355 thiab S355JR puas tuaj yeem hloov tau rau ib leeg?
Feem ntau, lawv tuaj yeem kwv yees, tab sis muaj qhov sib txawv ntawm qhov kub thiab txias, qhov txwv siab ntawm P / S, thiab Ceq. Tej yaam num tseem ceeb yuav tsum ua raws li cov qauv tsim.
Yuav ua li cas yog corrosion kuj ntawm Q355?
Nws yog qhov zoo tshaj rau cov pa roj carbon zoo tib yam, tab sis cov tshuaj tiv thaiv -corrosion txheej (primer + topcoat) tseem xav tau. Rau qhov chaw sab nraum zoov / corrosive, Q355NH weathering steel yog pom zoo.
Yuav ua li cas lub theoretical hnyav ntawm Q355 steel phaj xam?
Formula: Nyhav (kg)=Thickness (mm) × Dav (m) × Length (m) × 7.85 (density 7.85 g/cm³).
Kev tsis xws luag thiab tswj kev ntsuas rau Q355?
Sab hauv: delamination, inclusions (tswj thaum steelmaking thiab dov);
Nto: Pitting, khawb (tswj thaum dov, straightening, thiab ntim);
Kev ua tau zoo: Lub zog / cuam tshuam tsis ua raws li cov qauv (tsim ua raws li GB / T 1591).
Dab tsi yog kev cia thiab kev thauj mus los ceev faj rau Q355? Khaws nyob rau hauv tsev nyob rau hauv ib tug los nag vaj tse los tiv thaiv xeb los ntawm ntev raug los nag; siv cov ntoo txhawb nqa kom tsis txhob deformation; ruaj ruaj thaum thauj mus los kom tsis txhob muaj kev sib tsoo thiab khawb.