Nrog rau txoj kev loj hlob ntawm kev lag luam, qhov kev thov rau cov khoom siv refractory yog nce. Cov ntaub ntawv refractory tau dhau los ua cov khoom siv tseem ceeb hauv kev tsim khoom niaj hnub no vim lawv cov yam ntxwv ntawm qhov kub thiab txias, tiv thaiv corrosion thiab siab compressive zog.
Cov ntaub ntawv refractory feem ntau yog tsim los ntawm oxide, siliceous thiab carbonaceous cov ntaub ntawv, thiab tseem muaj xws li cov khoom siv thiab cov khoom siv ntxiv, xws li cement, graphite, aluminium, magnesium, calcium, thiab lwm yam. Cov ntaub ntawv no muaj qee qhov zoo thiab qhov tsis zoo, yog li cov ntaub ntawv sib txawv xav tau. yuav raug xaiv raws li cov kev cai sib txawv hauv kev tsim khoom.
Nyob rau hauv steelmaking, nrog rau txoj kev loj hlob ntawm steel kev lag luam, qhov kev thov rau cov ntaub ntawv refractory yog tseem loj hlob. Cov tuam txhab hlau tam sim no tsis tsuas yog xav tau cov ntaub ntawv refractory kom muaj kev ua tau zoo nyob rau hauv qhov kub thiab txias, tab sis kuj xav kom lawv siv tsis tu ncua rau lub sijhawm ntev kom tsis txhob hloov cov khoom siv thaum lub sijhawm tsim khoom.
Hauv kev lag luam txhuas, cov ntawv thov tseem ceeb ntawm cov ntaub ntawv refractory yog nyob rau hauv cov hlwb electrolytic. Qhov chaw tsim khoom ntawm cov hlwb electrolytic yog qhov hnyav heev. Txij li thaum txhuas tsis yooj yim oxidized nyob rau hauv chav tsev kub, aluminium yog yooj yim oxidized nyob rau hauv high-temperature electrolytes los tsim oxides. , yog li cov ntaub ntawv refractory nrog zoo kub tsis kam thiab corrosion kuj yuav tsum tau siv nyob rau hauv lub electrolytic tank.
Hauv kev tsim cov khoom siv cement, cov ntaub ntawv refractory yog siv los tsim cov khoom siv hluav taws xob thiab cov hluav taws xob ncaj qha, thiab cov cib thiab cov phaj uas muaj kev hnav zoo yog dav siv.
