Tsis muaj txoj hauv kev yooj yim uas tuaj yeem hloov qhov kev sim ua haujlwm tau zoo, tab sis kev tshuaj xyuas ua ntej tuaj yeem ua tau los ntawm qhov pom, qhov ntom ntom, thiab X-ray. Lub purity ntawm magnesium oxide yuav tsum tau paub tseeb tseeb los ntawm tshuaj ntsuam xyuas los ntawm ib tug thib peb - tog CNAS- koom haum lees paub. Cov hauv qab no tsuas yog siv los txiav txim qhov txawv txav.
1. Kev tshuaj xyuas qhov muag (Rapid Initial Screening)
Cov yam ntxwv pom tau: Cov hmoov yog dawb, zoo, thiab tsis muaj pob, thiab tsis muaj grey -dub lossis daj- xim av;
Cov tsos mob txawv txav: Cov xim tsaus, pob, lossis cov khoom txawv teb chaws tuaj yeem qhia tias muaj cov khoom tsis huv xws li Fe₂O₃ lossis CaO, lossis cov hmoov tau nqus dej noo.
Cov kab tsis huv (xws li Cl⁻, SO₄²⁻) tsis tuaj yeem txiav txim siab los ntawm cov xim ib leeg thiab tseem yuav tsum tau kuaj ntxiv.
2. Filling Density Test (Indirect Judgement)
Cov txheej txheem: Ntsuas qhov loj ntawm cov hmoov hauv ib chav tsev ntim siv tus qauv kawm tiav lub tog raj kheej;
Tau Txais: 2.8–3.2 g / cm³;
Kev txawv txav: Tsawg ntom yuav yog vim muaj cov ntsiab lus impurity siab, coarse hais, lossis siab porosity tshwm sim los ntawm kev nqus dej noo.
Txoj kev no tuaj yeem pab txiav txim siab qhov sib xws ntawm cov khoom siv raw, tab sis nws tsis tuaj yeem cuam tshuam ncaj qha rau cov tshuaj purity.
3. X-Ray Inspection (Structural Screening)
Cov Ntsiab Lus Tshawb Fawb: Txawm hais tias muaj qhov tsis muaj dab tsi, tawm ntawm - nruab nrab cores, lossis qhov ntom ntom tsis sib xws hauv cov raj ntim dej;
Resolution Requirement: Ntau dua lossis sib npaug li 5μm;
Kev Txiav Txim Siab: Cov qauv tsis sib xws yuav qhia tias tsis sib xws ntawm cov khoom siv raw lossis impurities cuam tshuam rau kev ntws.
Qhov no tuaj yeem siv los ua cov txheej txheem tsis yog -kev puas tsuaj rau hauv cov txheej txheem tsim khoom, tab sis nws tseem yuav tsum tau ua ke nrog kev sim tshuaj.
Cov khoom tseem ceeb uas yuav tsum tau kuaj
Table Test Item Txais Standard Test Method
MgO Cov Ntsiab Lus Ntau dua lossis sib npaug rau 95% Acid-piv titration method
Active Magnesium Oxide Ntau dua los yog sib npaug rau 60% Hydration method
Hydrochloric Acid Insoluble Matter Tsawg dua lossis sib npaug rau 0.5% Pom thiab hnyav txoj kev
Cl⁻, SO₄²⁻ Tsawg dua lossis sib npaug li 0.02% / Tsawg dua lossis sib npaug rau 0.1% Titration lossis turbidimetric method
