Cov txheej txheem ntau lawm yog carbothermal, silicon thermal thiab aluminothermic.
Cov txheej txheem hluav taws xob carbothermal siv zirconium thiab hluav ncaig ua tus coj. Kev zom nyob rau hauv lub tshuab hluav taws xob los ntawm kev ua haujlwm txuas ntxiv. Tso cov hlau tsis tu ncua. Cov khoom sib xyaw ua ke yog: Zr22% ~ 27%, Si 38% ~ 43%, Al 0.5% ~ 1.0% thiab C0.1% ~ 0.5%.
Cov txheej txheem hluav taws xob cua silicon yog kev sib xyaw nrog zirconite, kua qaub, fluorite, 75% ferrosilicate thiab hlau oxide, uas yog smelted hauv cov pa roj carbon cib lev arc rauv. Thaum cov cua sov ua kom nce siab txog 1700 ℃, nplawm thiab txo qis pib. Ntawm qhov kawg ntawm kev txo, lub cub tawg kub nce mus txog 1800 ~ 1900 ℃, thiab lub slag yog raked thiab nrum. Cov sib xyaw ua ke ntawm zirconium ferrosilicate yog: Zr 20% ~ 40%, Si 45% ~ 55%, Al< 0.5%,="">< 0.1%.="" qhov="" zirconium="" rov="" qab="" yog="" li="" 55%.="" lub="" pob="" slag="" muaj="" 210%="" ~="" 15%="" zro="" thiab="" qhov="" pib="" yog="" 0.8="" ~="">
Cov txheej txheem Electroaluminothermic yog ib txoj kev los tsim cov zirconium ferrosilicate nrog cov ntsiab lus siab ntawm zirconium. Nrog zirconium, aluminium khoom seem, hlau mloog zoo, txiv qaub, 75% ferrosilicon raws li cov ntaub ntawv raw. Tom qab sib tov, nws yog smelted hauv cov pa roj carbon cib lil tilting hluav taws xob arc rauv thiab ua haujlwm ntu. Cov khoom sib xyaw ua ke yog: Zr 52% ~ 54%, Si 23% ~ 27%, Al 5% ~ 7%, Ti0.6%, P 0.08%, C 0.06% ~ 0.12%. Zirconium, txhuas thiab hlau yog tseem ua los ntawm txoj kev electroaluminothermic. Zirconium, hlau ore, txhuas tshuaj txhuas, kua qaub hmoov thiab sodium nitrate siv ua raw cov ntaub ntawv. Tom qab sib tov tusyees, lawv muab cov hluav taws xob hauv hluav taws xob coj los sib tov. Cov lus qhia ntawm qhov txhuas muaj raws li nram no: Zr 16.5% ~ 19.5%, Al 21% ~ 28%, Fe 47.5% ~ 51,5%, Si 2.2% ~ 3.2%. Lub zog siv hluav taws xob yog 700 kWh / t. Qhov zirconium rov qab yog li 60%.
