Cov txheej txheem tseem ceeb rau kev txiav txim siab yog tias magnesium oxide qhuav qhuav yog ua tiav "qhov hnyav tas li," txhais tau hais tias qhov sib txawv ntawm qhov hnyav ntawm ob lub voj voog qhuav sib law liag yuav tsum tsis pub tshaj 0.3 mg, qhia tias cov dej noo txaus evaporated.
1. Txoj Kev Nyuaj Siab: Txoj Kev Ntseeg Siab Tshaj Plaws
Txheej txheem:
Qhuav cov qauv magnesium oxide ntawm 105℃~ 110℃rau 2 teev;
Tshem tawm thiab txias rau chav tsev kub hauv lub desiccator;
Ntsuas cov qauv thiab sau qhov loj li m₁;
Re- ziab cov qauv hauv qhov cub rau 1 teev, rov ua kom txias thiab hnyav txheej txheem, kaw qhov loj li m₂;
Yog |m₁ - m₂| Tsawg dua lossis sib npaug li 0.3 mg, nws suav tias yog qhuav tag.
Txoj kev no, raws li cov qauv hauv tebchaws, tsim nyog rau cov ntawv thov uas xav tau kev ua kom huv thiab ua haujlwm siab (xws li cov khoom siv hluav taws xob thiab cov khoom siv tshuaj).
2. Kev Txiav Txim Siab Phenomena (Rau kev siv nkaus xwb, kev lees paub yuav tsum muaj txoj kev hnyav tas li)
|
Phem |
Kev piav qhia |
|
Xim ruaj khov |
Tsis muaj xim tseem ceeb hloov ua ntej thiab tom qab ziab, tshuav ib cov hmoov dawb los yog me ntsis dawb. |
|
Tsis muaj Lumps |
Tom qab ua tiav ziab, nws yuav tsum yog cov hmoov xoob. Yog hais tias tseem muaj clumping, tej zaum yuav muaj residual noo noo. |
|
Zoo Flowability |
Qhuav qhuav magnesium oxide muaj zog flowability, pours smoothly tsis muaj stickiness. |
Qhov tshwm sim ib leeg tsis tuaj yeem txiav txim siab qhov dej noo; nws tsuas yog siv tau raws li kev tshuaj ntsuam xyuas ua ntej.
3. Qhuav validation nyob rau hauv tshwj xeeb scenarios
Muaj Batch Ntau Lawm: Nws raug pom zoo kom coj mus kuaj txhua batch rau qhov ntsuas qhov hnyav tas li kom ntseeg tau tias cov txheej txheem ruaj khov.
High-purity Magnesium Oxide (Optical Grade): Kev ntsuas turbidity los ntawm qhov thib peb- tog kuaj lub tsev tuaj yeem siv los ntsuas qhov cuam tshuam ntawm cov khoom zoo thiab cov dej seem ntawm cov khoom siv kho qhov muag tom qab ziab.
Rau cov ntawv thov tseem ceeb, nws raug nquahu kom xa cov qauv mus rau CNAS- qhov chaw kuaj pom zoo rau kev txhawb nqa cov ntaub ntawv pov thawj.
