Yog tias koj xav txo cov ntsiab lus impurity hauvcalcined aluminathiab txhim kho lub purity ntawm calcined alumina, koj yuav tsum tau siv txoj kev xws li cua sov nruab nrab pom thiab ntxiv complexing agents. Yuav ua li cas calcined alumina ua? Nws yog tau los ntawm calcining industrial alumina hmoov ntawm qhov kub ntawm ntau tshaj 1300 degree. Thaum lub sij hawm calcination, qhov kub sib txawv yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom nws tus kheej.
1. Txhawm rau txhim kho kev ruaj ntseg ntawm cov khoom, nws yog ib qho tsim nyog yuav tsum ncua lub sij hawm rwb thaiv tsev, uas yog ib qho tseem ceeb txuas rau kev tswj cov yam ntxwv thiab kev ua tau zoo ntawm cov khoom. Lub sijhawm rwb thaiv tsev ntev dua, qhov ruaj khov ntawm cov khoom lag luam.
2. Lub hardness, kub tsis kam thiab shrinkage tus nqi ntawm calcined alumina muaj feem xyuam rau calcination stability. Qhov siab dua qhov kub ntawm calcination, qhov siab dua qhov tseem ceeb ntawm cov yam ntxwv no. Thaum calcined alumina siv los ua raw khoom rau ceramics thiab refractory cov ntaub ntawv, calcination kub yuav tsum tau tswj nyob ib ncig ntawm 1400 degree thiab lub sij hawm rwb thaiv tsev yuav tsum tau tswj nyob rau hauv ntau tshaj 10 teev.
Hauv cov ntsiab lus, cov yam ntxwv thiab kev ua haujlwm ntawm calcined alumina yuav raug cuam tshuam los ntawm calcination kub thiab tuav lub sijhawm. Yog li ntawd, cov lag luam yuav tsum tswj cov calcination kub thiab tuav lub sij hawm nyob rau hauv lub hauv paus ntawm mastering txoj kev calcination los xyuas kom meej tias cov kev ua tau zoo ntawm calcined alumina yog zoo dua. Txawm li cas los xij, nws tsim nyog sau cia tias qhov siab dua qhov kub ntawm calcination, tus nqi ua haujlwm ntau dua. Yog li, cov tuam ntxhab tuaj yeem xaiv qhov tsim nyog calcination kub raws li qhov chaw ua haujlwm thiab kev siv tshwj xeeb ntawm cov khoom.
