Cov txheej txheem tseem ceeb rau kev txiav txim siab yog tias magnesium oxide rwb thaiv tsev txheej tau ua tsis tiav yog ntsuas nws cov rwb thaiv tsev tiv thaiv, ua ke nrog kev ntsuam xyuas dav dav ntawm nws cov tsos thiab kev ua haujlwm. Nyob rau hauv ib txwm muaj xwm txheej, lub rwb thaiv tsev tsis kam ntawm magnesium oxide rwb thaiv tsev txheej nyob rau hauv lub kub khiav los yog cua sov caij yuav tsum muaj ntau tshaj los yog sib npaug zos rau 100 MΩ. Yog tias nws qis dua 10 MΩ, nws suav tias ua tsis tiav.
1. Txoj kev tshawb nrhiav tseem ceeb
Rwb thaiv tsev Resistance Test (Feem ntau ncaj qha thiab siv tau)
Siv lub 2500V megohmmeter los ntsuas qhov rwb thaiv tsev ntawm cov cua sov thiab cov hlau casing nrog lub hwj chim tawm.
Lub rwb thaiv tsev tsis kam ntawm cov khoom siv tshiab lossis cov khoom tshiab uas tau ntim cov magnesium oxide feem ntau yog> 500 MΩ.
Ntau dua lossis sib npaug rau 100 MΩ: Ib txwm;
10–100 MΩ: Tej zaum muaj teeb meem tshwm sim; qhov sib txawv yuav tsum tau saib xyuas;
< 10 MΩ: Failed; must be replaced.
Nws raug nquahu kom ua qhov kev sim txhua hli thiab sau cov kev hloov pauv ntawm tus nqi. Yog hais tias nws poob sai heev los ntawm 50 MΩ mus rau 2 MΩ, nws qhia tau hais tias lub rwb thaiv tsev txheej yog deterioration.
Lub Hwj Chim- ntawm Txoj Kev Saib Xyuas (Kev Txiav Txim Siab): Cov xwm txheej hauv qab no thaum lub sijhawm ua haujlwm ntawm cov khoom siv yuav qhia tau tias tsis ua haujlwm rwb thaiv tsev: Cov lus ceeb toom tiv thaiv tsis tu ncua lossis kev ua txhaum hauv av qhia los ntawm tus maub los; Tsawg cua sov ceev lossis tsis muaj peev xwm ua kom sov; Lub hwj chim taw qhia lub teeb yog qhov qub tab sis tsis muaj hluav taws xob tso tawm (muaj peev xwm luv luv Circuit Court hauv cov cua sov).
Kev Ntsuam Xyuas Kev Pom Zoo: Tshawb xyuas cov xim dub, xeb, dej stains, lossis cov muaju ntawm cov hlua txuas; Tshawb xyuas cov pob, tawg, lossis oxidation hnyav hauv cov hlau casing; Yog tias cov nplaum nplaum yog hnub nyoog thiab tawg, noo noo tuaj yeem nkag mus tau yooj yim, ua rau cov magnesium oxide nqus dej thiab tsis ua haujlwm.
2. Feem ntau ua rau poob
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Ua rau |
Kev piav qhia |
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Moisture Absorption |
Magnesium oxide yog cov khoom ntxeem tau; raug rau qhov chaw ntub dej ua rau nws nqus dej noo, ua rau muaj kev poob qis hauv kev rwb thaiv tsev. |
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Siab -Tsub Laug |
Kev ua haujlwm ntev- lub sijhawm ua haujlwm ntawm qhov kub siab dhau los ua kom cov qauv ntawm magnesium oxide hmoov, ua rau nws cov rwb thaiv tsev ua haujlwm tsis zoo. |
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Kev puas tsuaj |
Khoov lossis cuam tshuam tuaj yeem ua rau micro- tawg hauv lub plhaub raj, tso cai rau cov dej noo nkag mus rau sab hauv. |
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Cov impurities |
Ordinary magnesium oxide muaj impurities xws li Fe₂O₃ thiab CaO, uas tuaj yeem yooj yim tsim txoj hauv kev. |
High -purity magnesium oxide (99.9% lossis siab dua) muaj zog tiv thaiv kom ya raws thiab kev laus, ua kom nws lub neej ua haujlwm ntev.
3. Cov lus pom zoo
Qhov xwm txheej pom zoo
Rwb thaiv tsev tsis kam <10 MΩ Hloov cov cua sov tam sim; nws kho tsis tau.
Rwb thaiv tsev tsis kam 10-100 MΩ thiab tsis tu ncua txo Txoj Kev Npaj hloov kom tsis txhob ua tsis tiav tam sim.
Tsuas yog cov kab hluav taws xob uas ntub dej thiab qhov ntev tso cai rau cov ntu ntub dej tuaj yeem raug txiav tawm thiab rov ua dua -crimped, tab sis yuav tsum tau xyuas kom muaj lub foob tsis zoo.
Kev lag luam Standard: Nyob rau hauv cov txheej txheem tseem ceeb xws li txhaj tshuaj molding thiab tshuaj sterilization, rwb thaiv tsev tsis kam <10 MΩ yog suav tias yog ib qho tsis ua hauj lwm thiab yuav tsum tau hloov.
