1. Q: Dab tsi yog cov khoom siv thiab alloy tsim core 8630 steel yeeb nkab?
A: {{8630 yog ib qho nruab nrab-cov pa roj carbon-chromium-molybdenum aliece qauv hlau (sib xws rau AISI8630). Nws cov khoom tseem ceeb yog:
Kev Tsim Kho Kom Zoo: Carbon 0.28% -0.33% (Nickel 0.70% (rau cov khoom siv tawv tawv), Molybdenum), Molybdenum), Molybdenum), Molybdenum), Molybdenum), Molybdenum), molybdenum
Cov khoom sib npaug ntawm cov khoom: Tom qab quenching thiab tempering, lub zog tensile yog 9J, thiab cov kev cuam tshuam loj nrog Weldability zoo (PaBbon sib npaug CEQ ≈ ≈ 0.52);
Tshwj xeeb zoo: los ntawm kev tswj hwm dov, ib qho loj ntawm ntau dua lossis sib npaug rau 8 (ASTM E112) tuaj yeem ua tiav, ua rau nws muaj kev sib txawv ntawm cov khoom loj.
2. Q: Dab tsi yog qhov tseem ceeb sib txawv ntawm 8630} {}} steel? A: Qhov sib txawv tseem ceeb yog:
Cov ntsiab lus carbon: 8630 (0.28% -0.33%) Ua Ntej Zuag Tes Ntau Tshaj rau} (0.25% -0.30%).
Cov Kev Siv: {8630 yog siv rau quenched thiab tempered txheej txheem, thaum8627}}}}}}}
Nqi-txiaj ntsig: {{{{8630 muaj cov nqi qis dua npib (0.40% vs {%), txo tus nqi ntau lawm los ntawm 15% -20%.
Nco tseg: carburizing tsis pom zoo rau 8630; Induction hardening yog pom zoo rau saum npoo tawv.
3. Q: Dab tsi yog qhov tseem ceeb kub kho tshuab rau 8630 steel yeeb nkab?
A: Peb-theem Precision Tswj:
Quenching: 880-910℃roj quenching (cov ntoo khaub lig loj uas yuav tsum muaj dej-roj dual-nruab nrab quenching);
Tempering: 550-650℃(tsawg-kub tempering khaws lub zog, qhov siab tempering kev txhim kho kev nruj me ntsis);
Kev kho mob tom qab weld: 600-650℃x 1 teev/0m Kev Nyuaj Siab Kev Siv Nyiaj (Preheat 200-250℃ua ntej vuam);
Tswj tus tseem ceeb: Tsis txhob muaj qeeb txias nyob rau hauv 350-550℃ntau yam los tiv thaiv kev npau taws brittleness.
4. Q: Cov kev siv ntawm 8630 hauv cov cuab yeej hnyav?
A: Cov ntaub ntawv thov sib xws suav nrog:
Kev Siv Machinery: Excavator SWWING nplhaib iav (Induction Hardening Hardness Hrc 52-56);
Cov Khoom Siv Zog: Cua Turbine Main Ncej Cov Kabmob Rooj (GL Cov Ntawv Pov Thawj);
Tsheb thauj mus los: High-ceev ceev kev tsheb ciav hlau Bogie traction qws (qaug zog lub neej ntau dua los yog sib luag rau 5 lab toj siab);
Cov tub rog kev lag luam: Cov dav hlau catapult cov txheej txheem (ntsev tsuag tshuaj corrosion kho). 5. Cov yeeb nkab tiv thaiv}} steel hlau?
A: Cov ntsiab lus tseem ceeb rau kev tswj cov txheej txheem tag nrho:
Tsim theem: Finite elate tsom xam kom cov cheeb tsam teeb meem kev ntxhov siab ntau dua (kaum lub vojvoog ntau dua lossis sib npaug rau 5 hli);
Kev tsim khoom theem: 100% sib nqus make particle kuaj (Astm E1444) + Ultrasonic kev kuaj (thiab 10160);
Kev Tswj Xyuas: Hardness Gradient Kev Ntsuam Xyuas Txhua 3000 teev (Attenuation tsawg dua lossis sib npaug rau 3 HRC);
Cov txheej txheem SEEM: Qhov tsis tsim nyog thaum qhov tob qis> 10% ntawm phab ntsa tuab lossis corrosion still> 1mm.
6. Q: Dab tsi yog cov lus qhia ulological evololution rau8630?
A: Peb qhov kev hloov kho loj tshiab:
Kev kho cua ntse kub: Lub sijhawm quenching cov nqi tswj kev yoog raws raws li kev siv internet;
Compound Kev Hloov Kho: Laser Cladding WC-co txheej (saum npoo tawv (nto hardness hrc 65+);
Kev tsim khoom ntsuab: hydrogen txo cov txheej txheem smelting (txo cov pa roj carbon emissions los ntawm ntau dua 50%)
