Txoj hauv kev txhim kho cov kev pab cuam lub neej ntawm refractory castable rau txhuas melting rauv yuav tsum yog tsuas yog tsom rau peb yam saum toj no
1 Ua kom tus ntwm ntawm refractories thiab txo qhov porosity ntawm refractories. Cov khoom lag luam refractories muaj qhov siab ceev thiab qis porosity, uas tuaj yeem tiv thaiv kev nkag mus ntawm aluminium thiab nws cov khoom siv alloys.
2 ， Lub corrosion tsis kam ntawm refractories rau txhuas dej. Lub tshuab ntub dej zoo kawg ntawm cov kab rov tav tuaj yeem tiv thaiv qhov kev yaig ntawm molten aluminium thiab kev nplaum ntawm molten aluminium thiab aluminium slag.
3 ， SiO 2 thiab impurities hauv refractories yog yooj yim kom hnov mob Al thiab Mg hauv kev lag luam aluminium, thiab ua rau lub ntim hloov ntawm refractories, uas ua rau refractories tawg thiab nrawm corrosion ntawm aluminium dej rau hauv refractories. Yog li ntawd, qhov siab dua aluminium cov ntsiab lus ntawm qhov refractories, qhov zoo dua purity, qis dua qhov tshwm sim ntawm cov tshuaj tiv thaiv nrog dej aluminium, thiab qhov zoo dua corrosion kuj.
Nyob rau tib lub sijhawm ntawd, cov tshuaj ntxiv xws li barium ntsev thiab chromium ntsev kuj tseem tuaj yeem ntxiv rau cov tshuaj tiv thaiv nrog molten aluminium los ua ib txheej txheej tiv thaiv kom cov tshuaj tiv thaiv corrosion ntawm refractories.
4 resistance Hnav tsis kam ntawm refractories. Cov coj tsis kam ntawm refractories yog feem ntau los txhim kho nws lub zog, tab sis kuj tseem ntxiv qhov hnav tsis kam thiab kev cuam tshuam ntawm kev cuam tshuam ntawm refractories.
