Dab tsi yog qhov kub tsis kam ntawm nickel ua npuas ncauj?

Nickel ua npuas ncauj yog cov khoom siv hlau nplaum uas muaj qhov tshwj xeeb ntawm qhov chaw thiab qhov porosity, thiab nws cov khoom siv lub cev tshwj xeeb ua rau nws muaj ntau yam kev siv hauv ntau qhov chaw. Qhov kub-kub tsis kam ntawm npib tsib xee ua npuas ncauj yog tsom rau ntau tus kws tshawb fawb.

High-kub kuj ntawm nickel ua npuas ncauj
Qhov kub-kub kuj ntawmnickel ua npuas ncaujFeem ntau nyob ntawm nws cov khoom siv thiab kev tsim khoom. Feem ntau, cov khoom siv ntawm cov npib tsib xee ua npuas ncauj feem ntau yog npib tsib xee ntshiab, nrog rau muaj qee feem ntawm txhuas, chromium, thiab lwm yam alloying ntsiab. Cov ntaub ntawv no muaj qhov zoo thermal stability thiab corrosion kuj nyob rau hauv high-temperature tej yam kev mob, uas enables nickel ua npuas ncauj kom ruaj khov kev ua tau zoo nyob rau hauv high-temperature ib puag ncig. Cov kev sim qhia tau hais tias ntawm qhov kub ntawm ntau pua degrees Celsius, qhov porosity ntawm npib tsib xee ua npuas ncauj tsis tshua hloov, thiab qhov chaw morphology tsis cuam tshuam.

Melting point ntawm nickel ua npuas ncauj
Lub melting point ntawm npib tsib xee ua npuas ncauj yog ib qho ntawm cov cim tseem ceeb ntawm nws cov kub-kub kuj. Raws li qhov ceev thiab muaj pes tsawg leeg ntawm npib tsib xee ua npuas ncauj, nws cov ntsiab lus melting feem ntau yog nyob ib ncig ntawm 1350 ~ 1400 ℃. Txawm li cas los xij, qhov tseeb melting point ntawm npib tsib xee ua npuas ncauj yuav txawv vim txawv txheej txheem kev npaj thiab muaj pes tsawg leeg. Yog li ntawd, nyob rau hauv tej daim ntaub ntawv, lub high-temperature kuj ntawmnickel ua npuas ncaujyuav tsum tau soj ntsuam raws li qhov tseeb.

Kev siv kub-kub ntawm nickel ua npuas ncauj
Qhov kub-kub stability ntawm npib tsib xee ua npuas ncauj ua rau nws siv dav hauv ntau qhov chaw. Piv txwv li, nyob rau hauv petrochemical thiab hlau thiab hlau metallurgy industries, nickel ua npuas ncauj yuav siv tau raws li ib tug lim rau high-temperature gases thiab kua kom zoo tshem tawm impurities. Tsis tas li ntawd, npib tsib xee ua npuas ncauj kuj tseem tuaj yeem siv los ua cov khoom siv hluav taws xob sib hloov rau cov cua sov thiab cov kua dej txias, tswj kev ua haujlwm zoo ntawm cov cua sov ntawm qhov kub thiab txias. Nyob rau tib lub sijhawm, nws tseem tuaj yeem siv los ua cov cab kuj rau catalysts los txhim kho cov tshuaj tiv thaiv ceev thiab cov nyhuv catalytic.

Nickel ua npuas ncauj tau txais kev saib xyuas dav dav rau nws qhov kev ua tau zoo ntawm qhov kub thiab txias kev ruaj ntseg thiab ntau yam ntawm daim ntawv thov kev cia siab. Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev loj hlob sai ntawm kev lag luam, nws ntseeg tau tias daim ntawv thov ntawmnickel ua npuas ncaujnyob rau hauv qhov chaw ntawm qhov kub thiab txias yuav ntau dua thiab nyob rau hauv-tob.