kub resistant cam khwb cia hlau

High alloy kub resistant steel rau casting. Nrog tib cov tshuaj muaj pes tsawg leeg, lub xeev cam khwb cia muaj lub zog thermal ntau dua li lub xeev dov. Cov txheej txheem casting yog yooj yim, tus nqi qis, thiab qhov teeb meem ntawm cov hlau alloy siab yog qhov nyuaj rau deform, yog li cov khoom siv casting occupies ib tug loj feem nyob rau hauv lub tshav kub resistant steel. Los ntawm xyoo 1980 mus txog rau xyoo 1990, vim muaj kev loj hlob sai ntawm kev lag luam petrochemical, metallurgical machinery thiab tsev cov ntaub ntawv kev lag luam, kev loj hlob ntawm tshav kub-resistant cam khwb cia hlau nyob rau hauv Tuam Tshoj tau nce. Cov neeg sawv cev feem ntau yog cov khoom siv hluav taws xob loj ammonia converter raj thiab ethylene tawg rauv cov hlab nrog ntau cov hlau alloy austenitic kub-resistant hlau, ua los ntawm centrifugal casting yeeb nkab thiab cov cuab yeej zoo tib yam.
Suav hom yog 40Cr25Ni20 (HK40), 4Cr25Ni35 (HP), 4Cr25Ni35Nb (HP + Nb), 4Cr25Ni35WNb (HP + w + Nb), 5Cr25Ni35Co015W5 (Supe rtherm). Ib tug loj tus naj npawb ntawm high alloy kub-resistant cam khwb cia hlau kuj yog siv nyob rau hauv lub cub tawg hauv qab cov menyuam thiab cov yeeb nkab hluav taws xob nyob rau hauv lub nruam cua sov rauv thiab cua sov kho rauv ntawm lub loj metallurgical cog. Cov npe suav suav suav yog 5Cr28Ni48W5(HV.NA22-H), 4Cr25Ni35Mo, 4Cr25Ni20,4Cr25Nil3 (HH), 4Cr22Ni10 thiab 3Cr24Ni7SiNRE. Nyob rau hauv lub tsev cov ntaub ntawv, machinery kev lag luam furnace thiab kho cua sov rauv siv cov cua sov resistant steel thiab 3Cr24Ni7SiN (RE), 2Cr20Mn9Ni2Si2N, 3Crl8Mn12Si2N thiab lwm yam nickel kub resistant cam khwb cia hlau. Kev siv kub ntawm cov ntaub ntawv saum toj no yog siab li 1000 ~ 1200 degree, thiab qee qhov yog 1250 degree, qee qhov kuj muaj kev ntxhov siab, thiab feem ntau ua haujlwm nyob rau hauv cov xwm txheej ntawm carburizing cua thiab roj, thiab lub neej kev pab cuam ntawm cov ntaub ntawv yuav tsum tau. ncav cuag 6 ~ 10 xyoo. Cov ntaub ntawv yuav tsum muaj lub zog ruaj khov ntawm kev siv kub, zoo impurities, antioxidant kuj thiab cov ntaub so ntswg stability tom qab siv ntev. Yog li ntawd, nyob rau hauv lub hauv paus ntawm siab chromium thiab npib tsib xee cov ntsiab lus, tungsten, molybdenum, niobium, cobalt thiab lwm yam ntxiv ntxiv dag zog rau cov kev siv.

40Cr25Ni20 (USA HK40)
4Cr25Ni35 (US HP)
4Cr25Ni35Nb (US HP + Nb)
4Cr25Ni35WNb (US HP + w + Nb)
5Cr25Ni35Co015W5 (Supe rtherm, USA)
Lub cub hluav taws xob hauv qab cov menyuam thiab cov raj hluav taws xob siv nyob rau hauv qhov hluav taws xob tas mus li thiab kho cua sov rauv ntawm cov nroj tsuag loj loj:
5Cr28Ni48W5(HV.NA22-H)
4Cr25Ni35Mo
4Cr25Ni20
4Cr25Nil3 (HH)
4Cr22Ni10
3Cr24Ni7SiNRE
Siv nyob rau hauv lub tsev cov ntaub ntawv, machinery industrial kilns thiab kho cua sov rauv:
3Cr24Ni7SiN (RE)
2Cr20Mn9Ni2Si2N
3Cr8Mn12Si2N