Q345GJ (High-Strength Building Steel) puas tsim nyog rau cov tsev txhab nyiaj?
A: Yog. Q345GJB/GJC/GJD tshwj xeeb yog tsim los rau siab -nce / loj-span lug, featuring a low yield strength ratio, Z-direction tear resistance, and good low-temperature toughness, ua nws haum rau siab -nce bank main halls}, loj {{7} lob
Dab tsi yog cov khoom weldability ntawm Q345?
A: Zoo weldability, nruab nrab carbon sib npaug, haum rau phau ntawv vuam, submerged arc vuam, thiab roj shielded vuam; tuab daim hlau / qis- daim ntawv thov kub yuav tsum **preheating rau 100-150℃** tiv thaiv kev tawg.
Puas yog Q345 siv rau lub tsev txhab nyiaj?
A: Yog. Q345 txhua kab muaj kev thauj khoom siab-cov kabmob muaj peev xwm, me me hla- ntu, thiab thaj chaw siv tau ntau ntxiv, ua rau lawv tsim nyog rau siab - cov tsev txhab nyiaj nce siab, loj- ncua chaw tos txais, thiab thaj chaw vault.
Dab tsi yog qhov zoo ntawm kev siv Q345 rau kab teeb / trusses?
A: Lub zog muaj zog, lub teeb yuag, tsis muaj deflection, feem ntau yog siv nyob rau hauv loj -cov chaw tos txais loj, lub ru tsev vault, thiab hloov cov plag tsev, muab kev zoo dua seismic thiab cuam tshuam.
Q345 steel ntawv yog siv rau hauv tsev txhab nyiaj hauv pem teb / ru tsev slabs?
Teb: Q345 profiled steel ntawv feem ntau yog siv rau steel decking + pob zeb ua ke pem teb slabs. Nws muaj rigidity siab, kev tsim kho sai, thiab kev tiv thaiv hluav taws zoo, ua tau raws li qhov yuav tsum tau ua ntawm cov vaults siab (Ntau dua lossis sib npaug ntawm 6kN / m²).