1. Cov ntsiab lus txhais thiab cov yam ntxwv tseem ceeb
12Cr1Movg yog chromium - molybdenum {}} vanadium alloy boiler raj 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": Carbon Cov Ntsiab Lus 0.08 - 0.15% (Tsawg-carbon tsim kom ua tau zoo weldability);
"CR1": Chromium Cov Ntsiab Lus 0.90-1.20% (txhim kho oxidation tsis kam);
"Mo": Molybdenum cov ntsiab lus 0.25 - 0.35% (txhim kho kom muaj zog kub siab rau lub zog);
"V": Vanadium ntsiab lus 0.15-0.30% (rov qab ua kom loj dua ntais thiab inhibits carbide agregation);
"G": Boiler -} kev tsim tshwj xeeb.
Cov Qauv Txheej Txheem: Phosphorus tsawg dua lossis sib npaug rau 0.025%, thiab 580℃siab tshaj tawm yuav tsum tau muab. 2. cov ntsiab lus tseem ceeb
Thaum tshav kub kub ua: ntev - lub sij hawm kub tsawg dua los yog sib npaug nrog 565 degree- sim kev pab kub txog li 580 degree;
COCE tawm: Endurance lub zog loj dua los yog sib npaug rau 75 MPA ntawm 580℃(tsim lub neej 100,000 teev);
Oxidation tiv thaiv: chrome thiab vanadium synergistic nyhuv, ncu corrosion tus nqi <0.05 mm / xyoo;
Kev ua tiav: Vuam yuav tsum tau preheating rau 200 {- 250 degree, thiab tom qab weld tempering ntawm 700-740℃yog yuav tsum tau.
3. Cov ntawv thov raug
Kev lag luam fais fab: High - kub superheaters thiab headers rau subcritical / supercritical boilers;
Petrochemical Kev Lag Luam: Reactor piping rau catalytic cracking units;
Cov Kev Siv Tshwj Xeeb: Siab {- Cov kabmob sib xyaw ua ke (piv txwv li, tshuab cua tshuab cua dub) {} sib piv nrog cov ntaub ntawv zoo sib piv
vs . 15}} ntawm vanog: ntxiv ntawm qhov siab- kub lub zog ntawm 12Cr1Movg los ntawm 15%, tab sis tus nqi yog 8-10% siab dua;
vs. t22 (10crmo910): Lub zog ua kom muaj zog tiv thaiv thiab lub voj voog uas tau luv dua;
vs. 12Cr2MoG: Lower molybdenum content, approximately 30℃lower operating temperature, but more cost-effective.
5. Kev Ua Phem thiab Txais Cov Ntsiab Lus Tseem Ceeb
Cov Ntawv Pov Thawj Tseem Ceeb: Cov ntaub ntawv pov thawj nrog rau graint (ntau dua los yog sib npaug (Akv ntau dua lossis sib npaug zos;
Yuav tsum tau xeem:
100% Kev Kuaj Ultrasonic (Raws li GB / T 5777);
10% EDDY Kev Ntsuas Tam Sim No (rau sab hauv phab ntsa tshuaj ntsuam xyuas);
