Dab tsi yog qhov txawv ntawm A213 T91 thiab T92

Dab tsi yog qhov txawv ntawm A213 T91 thiab T92 boiler yeeb nkab

I. Tshuaj Tshuaj Muaj Zog
Molybdenum (mo) thiab tungsten (w) cov ntsiab lus:
T91: Lub ntsiab lus Molybdenum yog 0. 85% ~ 1.05%.
T92: Txo cov molybdenum cov ntsiab lus ntawm T91 thiab nce lub tungsten cov ntsiab lus rau 1.2}}}}% los txhim kho cov tshuaj tsis muaj zog.
Lwm cov ntsiab lus alloying:
T92 Txuas ntxiv ntxiv Vanadium (V), Niobium (NB) thiab nitrogen (n) los ua cov pa mx ntau ntxiv (piv txwv li ntawm cov pa roj ntsha V / NB) thiab ntxiv dag zog rau intracrystalline matrix.
Ii. Cov Khoom Kub Kub thiab Lub Zog
Tso cai hnyav:
Qhov kev cia siab ntawm T92 ntawm 600 degree yog kwv yees li 20% ~ 30% siab tshaj li ntawm T9CRITICAL / Super-supercritical units nrog cov tsis muaj zog.
Muaj Feem Qhov Kub:
T91: Kev siv kub ntev dua lossis sib npaug nrog 600 degree.
T92: tuaj yeem tiv thaiv kom muaj qhov kub ntawm 620 degree, nrog lub zog ua kom muaj zog loj dua.
Oxidation tsis kam:
T92 txuas ntxiv txhim kho kev tiv thaiv kom ua pa oxidation los ntawm kev ua kom zoo dua cov crats (9% ~ 10%).
III. Lub Koom Haum thiab Ntxiv Dagchaism
Microstructure:
Ob qho tib si yog ferrittic-martensitic steels, tab sis T92 muaj cov khoom siv tsis ruaj khov los ntawm W-Mo Cov Khoom Siv Dag Zog thiab Dag los ntawm MX theem.
Txheej Txheem Kho Kom Kub:
T92 yuav tsum muaj kev kho cua sov ntau dua (piv txwv li no temperizing) kom ntseeg tau tias muaj kev faib tawm ntawm Carbides (M 2C6) thiab MX thises.
IV. Daim Ntawv Thov Kev Pab Cuam
T91:
Mas siv nyob rau hauv supertheater, kev tsheb ciav hlau thiab petrochemical ntawm subcritical thiab supercritical boilers.
T92:
Muaj feem xyuam rau cov kev kub kub-hluav taws xob ntawm ultra-supercritical units (chav kub ntau dua los yog sib luag rau 580 degree), xws li Coupling Chav thiab rov qab Coupling Box.
V. International txheem kev sib sau
T91: Yuam nrog ASTM A213 / ASME SA213, GB 5310 (10CR9MO1VNB).
T92: Fwm rau en {1}} (x10crwmovnb {}}}}}) thiab JIS G3467.
Ntsiab lus: T92 yog zoo dua rau T91 hauv lub zog kub, oxidation tiv taus thiab ua kom cov khoom siv hluav taws xob ntau dua rau cov chaw nres tsheb ntau parameter.