Q: Q355 steel phaj puas tuaj yeem siv rau qis- qhov kub thiab txias?
A: Yog, tab sis nws yog ib qho tsim nyog los xaiv cov qib uas tsim nyog. Q355D haum rau -20℃qis- qhov kub thiab txias ib puag ncig, thiab Q355E haum rau -40℃ultra- qhov kub thiab txias ib puag ncig. Q355A / B / C qib tsis pom zoo rau qhov chaw kub thiab txias, vim tias lawv qhov kub thiab txias tsis txaus thiab lawv yooj yim rau tawg tawg.
Q: Q355 steel phaj puas tuaj yeem siv rau cov hlab ntsha siab?
A: Yog. Q355 steel phaj tuaj yeem siv rau kev tsim cov hlab ntsha uas tsis tshua muaj siab thiab nruab nrab (tsim lub siab tsawg dua lossis sib npaug li 1.6MPa) tom qab dhau qhov kev ntsuas kev ua tau zoo. Nws yog ib qho tsim nyog los xaiv cov qib uas tsim nyog (zoo dua Q355C / D) thiab xyuas kom meej tias cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab ua tau raws li qhov yuav tsum tau ua ntawm GB 150-2011 "Pressure Vessels" tus qauv.
Q: Lub teb chaws cov qauv siv tau rau Q355 steel phaj?
A: Cov qauv tseem ceeb siv tau yog:
GB/T 1591-2018: Tsawg- alloy high-strength structural steels;
GB/T 709-2019: Kub- dov steel phaj thiab ntawv - Qhov ntev, duab, qhov hnyav thiab kam rau ua;
GB/T 3274-2017: Carbon structural steel thiab qis- alloy structural steel kub dov daim hlau thiab strips.**
Q: Dab tsi yog qhov kev tshuaj xyuas zoo ntawm Q355 steel phaj?
A: Cov khoom siv tshuaj ntsuam xyuas muaj xws li: tshuaj lom neeg muaj pes tsawg leeg (spectrometry), cov cuab yeej ntsuas (tensile test, impact test, bending test), dimensional tolerance inspection (thickness, width, length, flatness), deg checking quality (tsis muaj cracks, folds, scars, delamination, etc.), thiab non{1}}destructive testing, magnetic test, etc.
Q: Dab tsi yog tus qauv ntsuas ultrasonic rau Q355 steel phaj?
A: Kev kuaj ultrasonic ntawm Q355 steel phaj feem ntau yog ua raws li GB / T 6402-2018 "Steel Forgings - Ultrasonic Inspection" los yog GB/T 2970-2016 "Steel Phaj rau Siab Vessels - Ultrasonic Inspection". Cov qib xeem tuaj yeem xaiv tau raws li cov neeg siv khoom xav tau (xws li Qib I, Qib II, Qib III), thiab cov khoom tsis tsim nyog tuaj yeem kho lossis tsis lees paub.