Dab tsi yog cov yam ntxwv ntawm 800H?
Dab tsi yog cov yam ntxwv ntawm 800H?
800H alloy yog npib tsib xee-raws li alloy nrog zoo heev high-temperature zog thiab corrosion kuj. Nws yog dav siv nyob rau hauv industrial teb nyob rau hauv ntau yam huab ib puag ncig. Cov yam ntxwv tshwj xeeb yog raws li hauv qab no:
Kev kub siab corrosion kuj: 800H tuaj yeem muab kev tiv thaiv corrosion zoo heev hauv qhov kub siab tshaj aqueous media txog li 500 degree. Kev tiv thaiv kev ntxhov siab: Cov hlau no muaj kev tiv thaiv zoo rau kev ntxhov siab corrosion, ua rau nws ruaj khov nyob rau hauv ib puag ncig kev ntxhov siab.
Kev ua tau zoo: 800H muaj cov txheej txheem zoo thiab tuaj yeem ua txias tsim, welded, thiab lwm yam los ntawm cov khoom siv hlau tsis zoo.
Stable metallographic qauv: Nws muaj lub ntsej muag-centered cubic lattice qauv. Cov ntsiab lus tsis tshua muaj carbon tsawg thiab nce Ti: C piv ua rau muaj kev ruaj ntseg ntawm cov khoom siv thiab ua kom muaj kev tiv thaiv zoo rau kev nkag siab thiab intergranular corrosion. Cov khoom siv kho tshuab zoo heev: 800H tuaj yeem tuav cov khoom siv kho tshuab zoo txawm tias nyob rau hauv qhov kub thiab txias heev.
Kev kho cov kuab tshuaj: Tom qab kev kho tshwj xeeb, lub zog tensile ntawm 800H saum toj no 600 degree tau zoo dua. Qhov kub ua haujlwm li ib txwm nyob nruab nrab ntawm 600 ~ 800 degree thiab tuaj yeem ncav cuag 850 degree. Kev qaug zog tsis kam: Vim tias nws muaj cov khoom tsim nyog ntawm txhuas, titanium thiab lwm yam khoom, 800H kuj muaj qee yam kev qaug zog tiv thaiv thiab tsim nyog rau qhov chaw uas txav mus los ntawm kev kub ceev thiab nquag pib, xws li lub tsheb cav tso pa tawm. Resistant mus rau ntau yam corrosions: Cov hlau kuj muaj qhov zoo tiv thaiv corrosion los ntawm PbO (cov hlau lead oxide), V2O3 (vanadium trioxide), sodium thiab sulfur, thiab yog tsim rau siv raws li cov khoom siv valve rau diesel thiab roj av xyaw.
Nyob rau hauv cov ntsiab lus, 800H alloy muaj dav daim ntawv thov kev cia siab nyob rau hauv high-temperature daim ntaub ntawv thiab hnyav ib puag ncig vim nws kub tsis kam, corrosion kuj thiab zoo heev mechanical zog.
