Q1: Dab tsi yog 08cr18ni11nbfg? Nws yog nws cov tshuaj lom neeg cov yam ntxwv li cas?
A1:
Cov Khoom Hom: Austenitic Rhaub - Tsis kam}} {} {}}} {nyob rau hauv cov qauv qhia "rau boiler tub."
Cov Cheebtsam tseem ceeb (raws li cov qauv yuav tsum tau):
CR (18%) thiab NI (11%): Muab oxidation thiab corrosion tsis kam;
NB (Niobium): Rov ua kom zoo dua grain thiab txhim kho siab - lub zog;
Cov pa roj carbon (tsawg dua los yog sib npaug rau 0.08%): txo txoj kev pheej hmoo ntawm kev cuam tshuam corrosion.
Ntxiv: ib qib zoo sib xws sib xws li 347H hauv Astm, tab sis GB / T 5310 muaj kev tswj hwm kev coj ua rau phosphorus thiab leej faj tsis huv (ob qho tsawg dua lossis sib npaug 0.025%).
Q2: Cov txheej txheem tshwj xeeb rau cov txheej txheem ntau lawm ntawm hom yeeb nkab hlau? A2:
Kub Rolling / Cov Txheej Txheem Kos Duab:
Kub Rolling yuav tsum tau tswj cov khoom siv kub (ntau dua lossis sib npaug nrog 900 degree) los tiv thaiv σ theem los nag;
Tom qab kos duab txias, daws kev kho mob (dej quenching ntawm 1050-1150 degree) yuav tsum tau rov ua haujlwm.
Tsis - Kev sim ua kom puas: 100% ultrasonic lossis eddy kev sim ua kom paub tseeb xws li cov kab nrib pleb thiab quav.
Kev kho deg: pickling, passivation, lossis tua peening los tiv thaiv cl⁻ - induced kev ntxhov siab corrosion.
Q3: Cov ntaub ntawv thov rau 08cr18NIni11ni11ni11ni11ni11ni11nitomfg kav hlau?
A3:
Supercritical / Ultra-} Cov roj boilers: high - kub thiab rov ua dua tshiab txog 700 degree);
Cov Khoom Siv Hluav Taws Xob Nuclear fais fab: Chav hluav taws xob cua sov hloov cov leeg (kev ntsuas kev sib txuam ntxiv);
Chemelines: Siab -}} bearing pipelines tiv taus cov kua qaub thiab alkali corrosion.
Kev Lag Luam Kev Lag Luam (2025): Nrog qhov qis- Cov khoom siv hluav taws xob tsawg ntawm thermal nroj tsuag, daim ntawv thov ntawm cov khoom siv no hauv biomass boilers tab tom loj hlob ntau.
Q4: Cov cuab yeej ua dab tsi yog cov kev xav tau ntawm cov yeeb nkab steel raws li GB / T 5310?
A4: Noj cov qauv tshiab ntawm tus qauv (GB / T 5310-2017) ua piv txwv:
Chav Chav Ntsuas Kub:
Tensile lub zog loj dua los yog sib npaug 520 mpa, tawm kom muaj zog dua los yog sib npaug rau 205 mpa;
Elongation (₅₅) ntau dua los yog sib npaug rau 35%.
Kev ua haujlwm kub (600 degree):
TIM DESURITY muaj zog dua los yog sib npaug rau 78 MPa (100,000-teev kom tawg kev ntxhov siab).
Yuav tsum tau xeem: Txhua pob yuav tsum tau dhau tensile, cuam tshuam, hardness, thiab fob.
Q5: Yuav tsum tau ceev faj li cas thaum yuav khoom lossis siv hom yeeb nkab hlau no?
A5:
Daim ntawv pov thawj pov thawj:
Cov ntaub ntawv pov thawj (suav nrog kev txheeb xyuas cov cua sov), cov ntaub ntawv kho cua sov, thiab kev kho kom muaj cua sov kom pom tseeb.
Cia thiab Vuam:
Zam kev sib cuag nrog cov pa hlau (tiv thaiv kab hlau ion ion).
ER347 Vuam Hlau yog pom zoo rau vuam, thiab qhov nruab nrab ntawm qhov kub yuav tsum tau tswj qhov kub tsawg dua lossis sib npaug txog 150 degree.
Kev tsis muaj kev pheej hmoo:
Sigma theem embrittlement tej zaum yuav tshwm sim nyob rau hauv ntev -} kev ntsuas kub siab, yuav tsum tau sim ua kom muaj zog tas li.
