1. Taw qhia rau 9Ni steel phaj:
1. 9Ni steel phaj yog hom qis carbon quenched thiab tempered steel nrog cov qauv ntawm martensite ntxiv rau bainite. Nws muaj lub zog siab, toughness, tsis tshua muaj kev kub ntxhov, kev ua haujlwm vuam, thiab lwm yam. Piv nrog rau austenitic stainless hlau thiab aluminium alloy, nws muaj qhov zoo ntawm cov thermal expansion coefficient me me, kev lag luam zoo, thiab kev ua haujlwm qis tshaj tuaj yeem ncav cuag {{3 }} degree.
2. Cov khoom tseem ceeb ntawm cov hlau no yog Ni, Fe, Cr, Si, Mn, Mo, C, Al thiab lwm yam, uas cov ntsiab lus Ni ncav cuag 9%. Thaum lub sij hawm tsim cov txheej txheem, 9Ni steel daim hlau yuav tsum tau quenching thiab tempering tshav kub kho kom tau zoo txhua yam khoom.
3. 9Ni steel daim hlau yog tsuas yog siv los tsim cov hlab ntsha cryogenic xws li loj LNG cia tso tsheb hlau luam, nrog rau cov hlab ntsha siab, offshore roj ntau lawm platforms, thiab lwm yam. Nyob rau hauv cov nqe lus ntawm cov hlab ntsha siab, nws yuav siv tau los ua high-temperature siab hlab ntsha, Cov hlab ntsha uas tsis muaj qhov kub thiab txias, siab kub thiab siab siab cov hlab ntsha, thiab lwm yam. Nyob rau hauv cov nqe lus ntawm offshore roj ntau lawm platforms, 9Ni steel daim hlau yuav siv tau los tsim cov yam ntxwv yam xws li kab thiab kab teeb ntawm offshore roj ntau lawm platforms.
4. Tsis tas li ntawd, 9Ni steel daim hlau kuj tseem siv tau los ua cov khoom siv choj, xws li choj bearing pads, choj lub ntsiab nqaj, thiab lwm yam.
2. Cov ntsiab lus ntawm cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom ntawm 9Ni steel phaj:
1. 9Ni steel phaj yog hom qis carbon quenched thiab tempered steel. Nws cov khoom tseem ceeb suav nrog Ni, Fe, Cr, Si, Mn, Mo, C, Al thiab lwm yam. Ntawm lawv, Ni cov ntsiab lus nce mus txog 9%. Cov hlau no muaj qhov zoo ntawm lub zog siab, toughness, tsis tshua muaj kub cuam tshuam toughness, thiab vuam kev ua tau zoo. Piv nrog rau austenitic stainless hlau thiab aluminium alloys, nws muaj qhov zoo ntawm cov thermal expansion coefficient me me, kev lag luam zoo, thiab kev ua haujlwm qis tshaj tuaj yeem ncav cuag -196 degree . .
2. Thaum lub sij hawm tsim khoom, 9Ni steel daim hlau yuav tsum tau quenched thiab tempered kom tau zoo txhua yam khoom. Nws cov qauv yog martensite ntxiv rau bainite, thiab cov nplej loj yuav tsum tsis txhob tsawg dua qib 8. Qhov zoo ntawm qhov chaw yuav tsum ua raws li cov kev cai ntawm GB / T 14977, thiab ultrasonic flaw detection feem ntau yuav tsum tau nqa tawm.
3. Raws li cov khoom siv sib txawv thiab cov kev xav tau tiag tiag, cov tshuaj muaj pes tsawg leeg thiab cov khoom siv ntawm 9Ni steel daim hlau tuaj yeem sib txawv. Piv txwv li, 9Ni steel daim hlau siv los tsim cov loj LNG cia tso tsheb hlau luam yuav tsum muaj siab dua qhov kub thiab txias toughness, lub zog thiab corrosion kuj. Rau cov kev siv xws li cov hlab ntsha siab thiab offshore roj ntau lawm platforms, 9Ni steel daim hlau yuav tsum muaj zog dua thiab corrosion kuj.
