1. Cov ntsiab lus txhais thiab cov qauv tshwj xeeb
12CR2Mog yog chromium - molybdenum {}}}}}}} alloy boiler yeeb nkab teev hauv GB / T 5310 tus qauv. Nws yog qhov siab - kub kub kub -} tiv taus hlau. Nws cov rooj sib tham naming yog raws li nram no:
"12": Cov pa roj carbon cov ntsiab lus ntawm 0.08-0.15% (cov carbon tsim muaj txiaj ntsig zoo nkauj weldability)
"CR2": chromium cov ntsiab lus 1.50-200% (txhim kho oxidation tsis kam)
"MO": Molybdenum cov ntsiab lus 0.90 -} 1.10% (txhim kho kom muaj zog kub siab)
"G": Kev Tsim Qauv rau Boiler -} Tshwj Xeeb Hlau. Cov Qauv Siv Ua Haujlwm: phosphorus tsawg dua lossis sib npaug rau 0.020%, leej faj tsawg dua lossis sib npaug rau 0.010%. Siab - kub endurance des dog cov ntaub ntawv ntawm 590℃yuav tsum muaj.
2. Cov ntsiab lus kev ua tau zoo
Tsis tshua muaj cua kub siab heev: tuaj yeem lag luam rau ncua sijhawm ntawm 620℃(tsim lub neej 100,000 teev)
Creep Kuj: Lub sijhawm los tsoo ntau dua lossis sib npaug txog 30,000 teev ntawm 590℃/ 100 mpa
Ruaj microstructure: Vag refines ua kom yooj yim qoob loo loj thiab inhibits carbide kev sib sau ua ke
Cov yam ntxwv ua: Vuam yuav tsum muaj 300 -}}} ehites preheat, ua raws li kev kho kom sov siab-weld
3. Cov ntawv thov raug
Ultra -} shakcritical boilers: kawg ceev ceev (phab ntsa tsawg dua los yog sib npaug rau 620 degree)
Cov Khoom Siv Hluav Taws Xob Nuclear: Chav Generator Thaum Cov Roj Cua Kub Hloov Tube Txhawb Nqa
Tshuaj Kev Lag Luam: Siab - kub thiab high- Siab} Kev Kub Hydrogenation Reactors Reactors Reactors Reactors Reactors Reactors Reactors
Cov Kev Siv Tshwj Xeeb: Kev Cuam Tshuam Siab - Cov kabmob cov kab ke raug rau kev hloov pauv thermal
4. Sib Piv nrog cov ntaub ntawv zoo sib xws
Piv rau 12cr1movg:
Molybdenum cov ntsiab lus kwv yees li ob npaug, siab - kub ua kom muaj zog nce los ntawm 25%
Ntau tshaj kev ua haujlwm kub nce ntxiv los ntawm 40-50 degree
Tus nqi nce los ntawm kwv yees li 30-35% piv rau T91 (9CR1MOV):
Cov ntsiab lus chromium siab dua, ntau dua cov kua corrosion tsis kam
Qis dua thermal expansion coefficient (txo cov thermal kev ntxhov siab)
5. Kev Pab Cuam thiab Tswjhwm Tswjhwm Zoo
Cov Ntawv Pov Thawj Tseem Ceeb: Cov ntawv pov thawj khoom muaj xws li Delta Ferrite cov ntsiab lus (tsawg dua los yog sib npaug rau 5%) yog yuav tsum tau
Yuav tsum tau xeem:
100% kev sim ultrasonic (ua raws NB / T 47013.3)
100% hardness kuaj (HB tsawg dua los yog sib npaug rau 180)
