Q1: Dab tsi yog 12Cr1MoVG thiab 15CrMoG steel kav?
A:Lawv yog cov qis- alloy siab- lub zog ferritic steel kav, cais raws li siab - siab boiler raj. Lawv yog tsim los rau ntev - kev pab cuam nyob rau hauv siab - kub thiab siab - ib puag ncig siab, xws li fais fab nroj tsuag boilers thiab petrochemical khoom-1-4.
Q2: Dab tsi yog qhov tseem ceeb ntawm cov tshuaj sib txawv ntawm 12Cr1MoVG thiab 15CrMoG?
A:Thawj qhov sib txawv yog nyob rau hauv cov ntsiab lus alloying. 12Cr1MoVG muaj Chromium (~0.9-1.2%), Molybdenum (~0.25-0.35%), thiab Vanadium (~0.15-0.30%)-4. 15CrMoG muaj ib qho sib txawv, nrog cov ntsiab lus tseem ceeb yog Chromium (~0.8-1.2%). (~ 0.4-0.55%), tab sis nws feem ntau tsis muaj Vanadium ua cov ntsiab lus tseem ceeb alloying.
Q3: Cov khoom siv dab tsi ua rau 12Cr1MoVG haum rau siab -kev pabcuam kub?
A:12Cr1MoVG muaj kev ua tau zoo heev - kub, suav nrogkub zog, oxidation tsis kam, thiab tswj siabtsis tu ncua plasticityntawm qhov kub txog li 580℃-4. Nws lub zog tensile feem ntau yog 410-735 MPa-1.
Q4: Vim li cas 15CrMoG steel yeeb nkab paub zoo tiv thaiv hydrogen corrosion?
A:Kev sib xyaw ua ke ntawm Chromium (Cr) thiab Molybdenum (Mo) hauv 15CrMoG txhim kho nws txoj kev tiv thaiv hydrogen nres (hydrogen embrittlement) ntawm qhov kub siab, ua rau nws muaj kev ntseeg siab rau kev siv petrochemical xws li hydrotreating units-7.
Q5: Hauv kev lag luam loj twg yog cov kav hlau siv feem ntau siv?
A:Lawv yog cov tseem ceeb ntawm cov khoomtsim hluav taws xobthiabpetrochemical kev lag luam-1. Lawv yog siv nyob rau hauv boilers, tshav kub exchangers, thiab high-temperature piping systems.
