Cov kev lag luam twg tsim nyog?
Kev tsim kho: Factories, stadiums, siab -nce steel qauv
Choj: Kev loj / tsheb ciav hlau txuas hniav (Q345q series)
Machinery: Crane beams, cranes, mining machinery
Zog: Cov hlab ntsha siab, boilers, roj tank
Kev thauj mus los: Tsheb, nkoj, ntim khoom.
Dab tsi yog qhov txawv ntawm tus choj- tshwj xeeb Q345q thiab lwm hom?
Ua raws li GB/T 714-2015 (txhim kho- qauv tshwj xeeb). Cov kev cai nruj dua rau kev cuam tshuam, Z-axis, thiab qaug zog ua haujlwm.
Hom Hom: Q345qC/D/E.
Q345R rau cov hlab ntsha siab?
R=Lub nkoj siab tshwj xeeb, ua raws li GB/T 713. Kev ua kom zoo muaj pes tsawg leeg (C: 0.15–0.20%), zoo dua toughness thiab weldability.
Siv rau boiler nruas, cia tank, thiab reactors.
Qhov kev tiv thaiv corrosion zoo li cas?
Feem ntau, yuav tsum tau tiv thaiv- kev kho corrosion (painting / galvanizing). Ntxiv Cu thiab Cr tuaj yeem txhim kho huab cua tsis kam (weathering steel). 25. Yuav ua li cas txog nws qhov kub siab - ua haujlwm li cas?
Ntev - siv sijhawm: Tsawg dua lossis sib npaug li 450 degree
Lub zog txo qis ntawm 500 degree, yuav tsum tau cua sov-cov hlau tsis muaj zog (xws li 15CrMo).