Dab tsi ua haujlwm cuam tshuam los ntawm magnesium oxide purity tsis txaus?

Cov khoom cua sov yog qhov tsis zoo rau kev ua tsis tiav hauv siab - qhov kub thiab siab - cov av noo vim qhov tsis txaus magnesium oxide purity, uas cuam tshuam tsis zoo rau kev ua haujlwm rwb thaiv tsev, thermal stability, noo noo tsis kam, thiab ntev - lub sij hawm cia siab.

1. Txo kev ua haujlwm ntawm rwb thaiv tsev

Cov hauv paus ntsiab lus: Kev coj los yog hygroscopic impurities, raws li Cl⁻, SO₄²⁻, thiab Fe₂O₃, muab txoj hauv kev tawm;

Tsawg txias- xeev insulating kuj (<500 MΩ); abrupt resistance drop during hot operation, even near zero; elevated risk of malfunction and short circuit, endangering personnel and equipment safety.

Raws li "invisible killers," sulfates thiab chlorides tuaj yeem ua rau electrochemical corrosion txawm nyob rau hauv me me concentrations.

2. Thermal Stability Deterioration

Lub hauv paus ua rau: impurities tiv thaiv recrystallization los ntawm txo magnesium oxide lub melting kub thiab lattice stability.

Cov cim qhia: Micropores nce ntawm qhov kub thiab txias, ua rau muaj qhov sib npaug ntawm qhov kub thiab txias, uas tuaj yeem ua rau carbonisation, bulging, thiab txawm tias cov yeeb nkab tawg; Grain expansion yog impeded thaum sintering, uas ua rau ib tug xoob qauv.

Kev paub dhau los ua pov thawj tias qhov kub - lub xeev rwb thaiv tsev hla tus nqi poob los ntawm yuav luag 30% thaum Fe2O3 > 0.05%.

3. Txo qhov tsis kam ua kom noo noo

Lub hauv paus ua rau: Moisture yog nkag tau yooj yim los ntawm impurities xws li CaO thiab Cl⁻, uas vaporises thiab tsim nyob rau ntawm qhov kub thiab txias;

Cov cim qhia: Rwb thaiv tsev tsis kam txo qis los ntawm Ntau dua lossis sib npaug li 500 MΩ rau<200 MΩ following a wet test; Moisture ingress during operation causes pipe bursting incidents; condensation and corrosion at the sealing points speed up seal failure.

Cov khoom siv tus nqi ntawm cov dej noo ntau dua ob npaug thaum CaO qib siab dua 0.2%, ua rau muaj kev pheej hmoo loj.

4. Kev Txom Nyem Ntev Ntev -Lub Sij Hawm Muaj Peev Xwm

Cov hauv paus hniav: impurities ua rau cov txheej txheem deterioration thiab tsis tu ncua electrochemical corrosion;

Cov tsos mob muaj xws li: tus nqi siab ntawm cov khoom siv rov ua dua tau ntsib dua qhov ua tsis tiav, ua rau "tsis tuaj yeem kho, siv tsis tau ntev" conundrum; Txawm hais tias kev sim thawj zaug tau ua tiav, qhov tshwm sim ntawm qhov ua tsis tiav thaum ntxov hauv peb lub hlis nce mus txog 70%; elevated thib ob txaus ntshai, xws li cascading puas thiab system outages.

Lub hauv paus xav tau los lav lub neej ntev yog siab purity (Ntau dua lossis sib npaug rau 99.9%); qhov nruab nrab lifespan yog txo los ntawm 15% rau txhua txhua 0.1% poob rau hauv purity.