Q345R yog dab tsi?
Nws yog lub siab lub nkoj steel, nrog tib qib zog tab sis qis dua S / P (Ntshav / Muaj Peev Xwm), kev cuam tshuam tsis zoo, thiab ntau dua qhov yuav tsum tau kuaj pom. Nws yog siv rau hauv boilers/steam drums/storage tanks.
Siv tau Scenario?
Lub tsev steel beams / kem, txuas hniav, cranes, tsheb chassis, nkoj qauv, siab hlab ntsha, mining machinery, cua turbine yees.
Nws puas tuaj yeem siv rau hauv qhov chaw qis -qhov kub thiab txias?
Qib C Ntau dua lossis sib npaug rau 0 degree, Qib D Ntau dua lossis sib npaug rau -20 degree, Qib E Ntau dua lossis sib npaug rau -40℃tuaj yeem siv ncaj qha; Qib A/B tsis haum rau qhov kub thiab txias.
Yuav ua li cas yog nws weldability?
Zoo heev, qis carbon sib npaug (Ceq≈0.42%), haum rau phau ntawv arc vuam nrog E50 series electrodes, tsis tas yuav tsum tau preheating (rau nyias qhov chaw).
Puas yog nws yooj yim rau tawg thaum vuam?
For thick parts (>25mm) los yog qis- vuam kub, preheating rau 80-120℃yog yuav tsum tau los tiv thaiv txias tawg; S / P ntau dhau tuaj yeem ua rau kub tawg.