Magnesia refractory castables feem ntau siv sintered los yog fused magnesia ua ke thiab hmoov, nrog cov qib me me ntawm 5-2.5mm33%, 2.5-1.2mm22%, 1.2-0.6mm25%, 0.6-0.15mm20%. Cov ntsiab lus ntawm 30% sodium hexaphosphate tov yog siv los ua binder, siab alumina MAAs ua kom nrawm dua, hlau nplai lossis av nplaum hmoov raws li tus neeg sawv cev sintering
Cov txheej txheem npaj yog sib xyaw cov khoom sib xyaw ua ke nrog ob feem peb ntawm phau ntawv tuav txog 3 feeb. Tom qab txhua qhov chaw sib sau ua ke ntub, ntxiv cov hmoov refractory thiab sib tov sib npaug. Thaum kawg, ntxiv cov ntawv txuas ntxiv, tus neeg ua kom nrawm thiab tus neeg sawv cev sintering thiab txuas ntxiv mus txog 5 feeb. Tom qab kev co molding, nws yuav tsum tau kho ib txwm rau 3 hnub yam tsis muaj dej. Sodium hexametaphosphate tov binder yuav tsum siv tsawg li sai tau kom ntseeg tau tias qhov ua tau zoo ntawm cov khoom
