Cov hluav taws kub tsis kam tiv thaiv cov khoom tawg yooj yim yog tsim los ntawm kev faib ua feem ntau ntawm cov ntaub ntawv thiab cov ntaub ntawv hmoov, qhov feem tsawg ntawm cov hlua khi thiab lwm pab pawg, thiab txawm tias tag nrho lawv tau ua los ntawm cov ntaub ntawv ntau thiab hmoov, uas yuav tsum tau tsim los ntawm kev muaj zog.
Raws li cov khoom siv ramming tsuas yog siv rau hauv kev sib txuas ncaj qha nrog cov khoom siv molten, nws yuav tsum muaj cov ntaub ntawv ntawm cov khoom tawg thiab cov hmoov yuav tsum muaj qhov siab ntim ruaj khov, kev ua kom nruj thiab xeb tsis kam, thiab cov uas siv rau hauv qhov cub ua kom sov kuj yuav tsum muaj rwb thaiv tsev.
Kev xaiv ntawm binder rau cov ntaub ntawv ramming yuav tsum tsim nyog, qee qhov tsis xav tau cov hlua khi, qee qhov tsuas ntxiv me me ntawm flux. Acid ramming cov ntaub ntawv feem ntau siv sodium silicate, ethyl silicate, silica gel thiab lwm txoj hlua khi. Ntawm lawv, cov khoom siv ramming feem ntau siv cov borate; cov khoom siv alkaline ramming feem ntau siv magnesium chloride ntsev thiab sulfate; kuj feem ntau siv cov organic muaj cov ntsiab lus siab carbon uas tuaj yeem tsim cov pa roj carbon rau qhov kub ntawm qhov kub thiab daim ntawv qhia ib ntus. Cov khoom siv ziab khaub ncaws qhuav tau ntxiv nrog tus nqi tsim nyog ntawm flux uas muaj hlau. Glauber' s ntsev yog feem ntau siv rau hauv cov ntaub ntawv chrome ramming.
Piv nrog rau lwm cov kev tawm tsam tsis sib xws ntawm cov khoom zoo, cov khoom sib dhos yog xoob hauv lub xeev qhuav lossis semi qhuav. Cov qauv tuab tuaj yeem tau los ntawm kev muaj zog sib dhos. Tsuas yog thaum cov khoom siv ramming tau rhaub rau qhov kub sintering, tuaj yeem ua kom lub cev sib txuas tau muaj lub zog.
Tom qab cov khoom siv ramming tau tsim, cov txheej txheem cua kub sib txawv tuaj yeem saws los txhawb nws cov tawv lossis tawv los ua raws li cov yam ntxwv tawv ntawm qhov sib xyaw. Yog tias nws muaj cov inorganic tshuaj khi, nws tuaj yeem raug tshem tawm thiab ci tom qab nws tus kheej ua kom tawv tawv; yog tias nws muaj cov thermoplastic carbon binder, nws tuaj yeem rhuav tshem tom qab txias thiab muaj lub zog txiav txim siab, thiab nws yuav tsum tau kho kom nrawm ua kom nws coking ua ntej siv; thiab phau ntawv tiv thaiv tsis muaj qhov ua kom tawv nyob ntawm chav tsev kub feem ntau tau ua txhaum nrog cov pwm tom qab khi.
