Los ntawm Brittle mus rau Durable: Lub luag haujlwm ntawm MgO hauv 650℃Cartridge rhaub
Qhov chaw sab hauv ntawm 650℃cartridge rhaub yog ib qho ntawm cov thermal thiab hluav taws xob tsis zoo. Nyob rau hauv ib puag ncig no, magnesium oxide (MgO) tsis yog ib qho inert muab tub lim; nws yog tustseem ceeb, active dielectric thiab thermal conductoruas txiav txim siab seb lub tshuab cua sov ua haujlwm tau zoo los yog ua tsis tau zoo. Ntawm qhov ntsuas kub no, qhov zoo, purity, thiab ntom ntawm MgO yog qhov tseem ceeb raws li kev xaiv ntawm sheath alloy. Substandard MgO tuav yog thawj qhov ua rau muaj kev cuam tshuam nrog luv luv, txo kev ua haujlwm, thiab tsis ua haujlwm sai.
Dual Mandate ntawm MgO ntawm 650 degree
MgO yuav tsum ua ob qhov kev tawm tsam tsis tau sib npaug ntawm cov haujlwm tseem ceeb ib txhij:
Hluav taws xob rwb thaiv tsev:Nws yuav tsum muaj lub zog dielectric siab los tiv thaiv tam sim no los ntawm arcing los ntawm cov nyob tiv thaiv coil (ntawm high voltage) mus rau hauv av hlau sheath. Cov cuab yeej no degrades nrog kub thiab impurity.
Thermal conduction: Nws yuav tsum ua kom muaj cua sov tawm sab nraud los ntawm cov xim liab -kub kub mus rau hauv lub plhaub. Cov thermal conductivity tsis zoo ua rau lub kauj ua haujlwm ntawm qhov kub ntau dua li cov ntaub qhwv, ua rau cov coil oxidation ntxov ntxov thiab hlawv.
Ntawm 650 degree, qhov xav tau ntawm ob lub zog raug thawb mus rau lawv qhov txwv.
Cov Hom Kev Ua Tsis Zoo ntawm Inferior MgO
Tsawg Purity (Contaminants):Cov impurities xws li chlorides, sulfates, los yog hlau hais uaionic conductors ntawm qhov kub thiab txias, tsim cov dej xau uas txo cov rwb thaiv tsev tiv thaiv. Qhov no tuaj yeem ua rau muaj kev txhaum hauv av (luv luv rau sheath) lossis kev taug qab sab hauv ntawm cov coil windings.
Low Density (Ntau porosity):Cov voids hauv MgO pob ua raws li:
Thermal Insulators:Dramatically txo tshav kub hloov ntawm coil mus rau sheath. Qhov no ua rau lub coil overheat thaum lub sheath nyuaj kom ncav cuag qhov kub thiab txias.
Muaj peev xwm Arc Chambers:Nyob rau hauv high voltage, hluav taws xob tawm tuaj yeem tshwm sim hla qhov khoob, carbonizing ib txoj hauv kev thiab tsim kom muaj qhov luv luv.
Hygroscopic Nature (Moisture Absorption):MgO yog hygroscopic heev. Yog hais tias lub rhaub qhov kawg seals tsis hermetic, atmospheric noo noo yog kos rau hauv lub caij txias. Thaum pib, qhov no ya raws flashes mus rau chav, tsim kom muaj lub siab sab hauv uas tuaj yeem ua tauo los yog rupture lub sheath. Lub ncu kuj mus tas li degrades MgO lub dielectric zog.
Kev daws teeb meem engineering: High-Purity, High-Density Compaction
Lub 650℃cartridge rhaub yuav tsum MgO uas yog engineered rau daim ntawv thov.
Ultra{0}}High Purity:MgO yuav tsum yoghluav taws xob calcinedthiab ntawm qib nrog purity tshaj99.5%. Kev tsom xam cov ntsiab lus feem ntau yuav tsum tau ua kom ntseeg tau tias tsis muaj cov khoom siv hluav taws xob.
Ua kom tiav qhov siab tshaj plaws - Cov txheej txheem Compaction:
Txheem Sau & Kais:Ua tsis tiav. Qhov tshwm sim nyob rau hauv qis, tsis sib xws ceev.
Swaging (Rotary lossis Drawbench):Cov txheej txheem kev siv tshuab uas txo qis txoj kab uas hla, compressing MgO. Qhov no yog qhovyam tsawg kawg nkaus tau tus qauv rau siab - cov cua sov ua haujlwm.
Isostatic Pressing - Tus Qauv Kub:Qhov no yog cov txheej txheem meej rau 650℃kev ntseeg tau.
Txias Isostatic Pressing (CIP): Lub tshuab ua kom sov (lub plhaub, coil, xoob MgO) tau muab tso rau hauv lub siab - siab hydraulic chamber. Siab (feem ntau 30, 000+ psi) yog siv los ntawm txhua qhov kev qhia, compacting MgO rau>95% ntawm theoretical ntom ntomua ntej lub sheath yog thaum kawg loj.
Kub Isostatic Pressing (HIP): Cov txheej txheem zoo tshaj plaws, kev sib txuas ntawm qhov kub thiab txias siab kom ua tiav nyob ze - zoo meej ntom thiab tshem tawm cov seem micro- porosity.
Vim li cas qhov ntom ntom ntom:High ceev kom ntseeg tau tias:
Optimal Thermal conductivity:Maximizes tshav kub txaus, ua kom lub coil kub kom tsawg li sai tau rau ib tug muab sheath kub.
Maximum Dielectric zog:Tshem tawm cov voids qhov twg arcing tuaj yeem pib.
Mechanical Immobilization:Tuav lub coil rigidly nyob rau hauv qhov chaw, tiv thaiv kev txav, sagging, los yog luv vim kev co los yog thermal cycling.
Hermetic Sealing - Qhov tseem ceeb ntxiv: High - ntom MgO tsis muaj txiaj ntsig yog tias ya raws tuaj yeem nkag mus. Qhov kawgyuav tsummuab kaw nrog abrazed ceramic-rau-hlau lossis iav-rau-hlau hermetic foob. Qhov no tsim ib qho chaw ruaj khov, lub tshuab nqus tsev- nruj barrier. Organic seals (epoxy, silicone) yuav carbonize thiab poob ntawm 650 degree.
Qhov tshwm sim: Predictable Performance thiab Longevity
Lub tshuab rhaub tsim nrog siab -purity, isostatically nias MgO thiab hermetic seals muab:
Lower Coil Ua Haujlwm Kub:Rau tib lub sheath kub, lub coil khiav txias, ncua nws lub neej.
Stable Electrical Properties: Consistent high insulation resistance (>1000 MΩ) dhau lub rhaub lub neej.
Immunity rau Moisture:Tsis muaj kev pheej hmoo ntawm "pop thiab poob" ntawm kev pib tom qab cia.
Resistance rau Thermal Cycling:Cov qauv nruj MgO tiv thaiv coil txav, tiv thaiv kev qaug zog.
Xaus: MgO ua cov khoom siv ua haujlwm
Rau 650℃cartridge rhaub, qhia meej txog MgO yog ib qho tseem ceeb raws li kev qhia txog cov hlau nplaum. Cov kev qhia tshwj xeeb ntawm kev yuav khoom yuav tsum tau hais meej meej:
"MgO insulation shall be of ultra-high purity (>99.5%) hluav taws xob calcined qib. "
"MgO yuav tsum tau compacted rau qhov siab tshaj plaws ntawm Cold Isostatic Pressing (CIP) lossis cov txheej txheem sib npaug."
"Lub rhaub yuav tsum haum nrog hermetic ceramic- mus rau -hlau kawg seals."
Qhov kev nthuav dav no txav cov kev xaiv los ntawm cov khoom lag luam mus rau qhov ua tau zoo - cov cuab yeej siv tshuab. Tus nqi nce ntxiv ntawm qhov kev tsim kho no yog tus nqi ncaj qha ntawm kev ntseeg tau, them nyiaj rau nws tus kheej ntau zaus dhau los ntawm kev tiv thaiv kev poob qis, tiv thaiv cov cuab yeej kim, thiab ua kom cov txheej txheem zoo ib yam. Nyob rau hauv lub ntiaj teb hnyav ntawm 650℃cua sov, qhov zoo ntawm cov hmoov dawb sab hauv yog dab tsi cais cov neeg ua haujlwm ruaj khov los ntawm nkig, luv luv -nyob rau hauv.
