Kev ua haujlwm ntawm ferro vanadium
Ferrovanadium yog ib qho tseem ceeb alloy additive nyob rau hauv steel kev lag luam. Vanadium txhim kho lub zog, toughness, ductility, thiab kub tsis kam ntawm steel. Txij li thaum xyoo pua, kev siv vanadium hauv kev lag luam steel tau nce ntau, thiab los ntawm 1988 nws tau suav txog 85% ntawm kev siv vanadium. Kev faib ua feem ntawm vanadium siv hauv steel yog 20% carbon steel, 25% high-strength low-alloy steel, 20% alloy steel, thiab 15% cov cuab yeej steel. Vanadium-muaj lub zog siab qis-alloy steel (HSLA) yog siv dav hauv kev tsim thiab tsim cov roj / roj pipelines, cov tsev, txuas hniav, tsheb ciav hlau, cov hlab ntsha siab, cov khoom thauj, thiab lwm yam vim nws lub zog siab. Tam sim no, daim ntawv thov ntau yam ntawm vanadium-muaj steels tau dhau los ua ntau thiab ntau dua, thiab cov txuj ci tseem ceeb tau dhau los ua qhov tseem ceeb.
Vanadium hlau feem ntau yog siv nyob rau hauv cov hlau tsis muaj hlau los tsim cov vanadium titanium alloys, xws li Ti-6Al-4V, Ti-6Al-6V-2 Sn thiab Ti-8Al-1V-Mo, thiab lwm yam. Ti-6Al-4V alloy yog cov khoom siv kub kub zoo heev siv hauv kev tsim cov dav hlau thiab foob pob hluav taws, thiab muaj nuj nqis heev hauv Tebchaws Meskas, suav txog ntau tshaj li ib nrab ntawm cov khoom siv titanium-based vanadium alloys. Vanadium hlau kuj tseem siv tau rau hauv cov khoom sib nqus, cam khwb cia hlau, cemented carbide, superconducting cov ntaub ntawv thiab cov ntaub ntawv nuclear reactor.
Cov khoom ntawm ferro vanadium
Muaj peb feem ntau siv ferrovanadium muaj 40%, 60% thiab 80% vanadium. Lub ntsiab raw khoom rau ferrovanadium ntau lawm nyob rau hauv Tuam Tshoj yog vanadium titanomagnetite, uas yog enriched los ntawm beneficiation thiab ces smelted rau hauv vanadium-muaj npua hlau los ntawm lub moj tej tawg rauv, thiab vanadium slag yog muab rho tawm nyob rau hauv tus txheej txheem ntawm atomization rauv los yog converter tshuab. Tom qab crushing, vanadium slag yog tov nrog sodium ntsev (soda tshauv, ntsev los yog anhydrous miscanthus nitrate) rau sodium oxide roasting ua vanadium soluble sodium metavanadate (NaVO3), thiab tom qab leaching thiab purification, ammonium sulfate yog ntxiv rau precipitate ammonium polyvanadate [ (NH4)2V6O16], uas yog ces yaj los ntawm deamination thiab cam khwb cia rau hauv flake vanadium pentoxide. Cov khoom uas xav tau yog V2O597 ~ 99%, P<0.05%, S<0.05%, Na2O+K2O<1.5%. In addition, vanadium pentoxide is chemically extracted directly from vanadium-bearing iron concentrates or vanadium-bearing carbonaceous shales.
Cim npe nrov: ferro vanadium 40 qib ferro vanadium 40 manufacturers, lwm tus neeg, Hoobkas